BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:A study of the ionization efficiency for nuclear recoils in pure c rystals DTSTART;VALUE=DATE-TIME:20201009T145500Z DTEND;VALUE=DATE-TIME:20201009T151000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2300@cern.ch DESCRIPTION:Speakers: Sarkis Youssef (Instituto de Ciencias Nucleares)\nWe present a study of the ionization efficiency in pure materials based on a n extension of Lindhard's original theory\, in which the energy given to a tomic motion by nuclear recoils is calculated taking into account a nonzer o constant binding energy. We construct a modified integral equation that incorporates this effect consistently and find a numerical solution to th is equation that leads to a "quenching factor" (QF) which is in good agree ment with the available experimental measurements for Si and Ge. The calcu lated QF for nuclear recoils features a cutoff at an energy equal to twice the assumed binding energy. We argue that the model is a good approximati on for Ge even for energies close to the true cutoff\, while for Si is val id up to recoil energies greater than ∼500  eV. In this talk\, we wi ll also describe recent studies aimed at further extending the calculation of the QF for Si to even lower energies\, relevant for current and future direct dark matter searches and the detection of coherent elastic scatter ing of neutrinos off nuclei.\n\nhttps://indico.particle.mephi.ru/event/35/ contributions/2300/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2300/ END:VEVENT BEGIN:VEVENT SUMMARY:Operation and Performance of the ATLAS Tile Calorimeter DTSTART;VALUE=DATE-TIME:20201007T092000Z DTEND;VALUE=DATE-TIME:20201007T094000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2282@cern.ch DESCRIPTION:Speakers: Rute Pedro (LIP - Lab Instr Fisica Experimental de P articulas)\nTileCal\, the central hadronic calorimeter of the ATLAS detect or is a key system to measure and reconstruct hadrons\, jets\, hadronic de cays from tau leptons and missing transverse energy\, also participating i n muon identification. TileCal is a sampling calorimeter composed of plast ic scintillators interleaved by iron plates. Wavelength shifting optical f ibres collect the scintillating light from the tiles and are read by photo multiplier tubes (PMTs). The calorimeter comprises 64 wedged modules acros s the azimuthal direction\, segmented radially and in pseudorapidity to de fine the 5000 detector cells. Double cell readout\, by approximately 10000 PMTs\, provides redundancy in the cell energy measurement. \nTh e TileCal energy scale was determined a priori with test beam measurements and\, during operation\, dedicated calibration systems allow to monitor e ach step of the readout chain independently to address respective response fluctuations. A Cesium radioactive source assesses the response of the wh ole detector\, a laser system provides controlled light pulses to monitor the photodetectors and the front-end electronics is calibrated through cha rge injection. Besides\, the integrated current of the cells' response to minimum bias events provides auxiliary information on the whole detector r esponse stability during proton collisions. \nThe performance of the detector during Run 2 was studied with cosmic ray muons and the large sample of proton-proton collisions during data qu ality assessment activities. Furthermore\, isolated hadrons and high momen tum muons were used as probes to study the response of the calorimeter at the hadronic and electromagnetic energy scale\, respectively. The influenc e of pile-up on the detector noise levels and the detector response unifor mity were also analysed and compared to estimates from Monte Carlo simulat ion. Finally\, the time resolution of TileCal was investigated with multij et events. \nIn this pr esentation\, the methods and results of the TileCal Calibration and Perfor mance during Run 2 will be presented.\n\nhttps://indico.particle.mephi.ru/ event/35/contributions/2282/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2282/ END:VEVENT BEGIN:VEVENT SUMMARY:The Burn-in testing of advanced custom low-voltage power supply co mponents within ATLAS TileCAL testing facilities DTSTART;VALUE=DATE-TIME:20201007T100000Z DTEND;VALUE=DATE-TIME:20201007T101500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2288@cern.ch DESCRIPTION:Speakers: Ryan Mckenzie (University Of the Witwatersrand)\nThe upgrade of the ATLAS hadronic tile-calorimeter (TileCAL) Low-Voltage Powe r Supply (LVPS) falls under the high-luminosity LHC upgrade. This upgrade is composed of multiple projects that when combined will form the latest i teration of the LVPS. One such project is focused on an LVPS component kno wn as a brick\, which is a transformer coupled to a buck converter. These bricks function is to step-down bulk 200VDC current to the 10VDC current r equired by the front-end electronics of a TileCAL module. Due to the LVPS bricks being located on-detector they are of a highly refined custom desig n. Within the development and production phase of these bricks the use of a custom built test-bed known as the Burn-in station is required. The Burn -in test station functions to detect the premature failure of electronic c omponents on an LVPS brick via a process known as accelerated ageing. By d oing so the test station is able to ensure improved reliability of an LVPS brick once installed within ATLAS and therefore occupies a key role withi n the TileCAL LVPS brick testing facilities.\n\nhttps://indico.particle.me phi.ru/event/35/contributions/2288/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2288/ END:VEVENT BEGIN:VEVENT SUMMARY:Investigation of variations in the intensity of the muon flux in t he time series of matrix data of the URAGAN hodoscope DTSTART;VALUE=DATE-TIME:20201009T152500Z DTEND;VALUE=DATE-TIME:20201009T154000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2424@cern.ch DESCRIPTION:Speakers: Vlad Chinkin ()\nThe study of variations in the muon flux intensity distribution functions (MFIDF) was carried out on the basi s of digital processing of time series of matrix data of the URAGAN hodosc ope (MEPhI). The definition of normalized variations of the MFIDF was intr oduced. An algorithm for calculating the normalized variations of the MFID F is proposed. The calculated normalized MFIDF variations were tested on t he model matrix data of the muon hodoscope\; the test results were quite s atisfactory. Calculations of the errors of the proposed algorithm for esti mating variations are performed. The results of calculating the normalized variations of MFIDF on the experimental matrices of the URAGAN hodoscope are analyzed\, which confirmed the effectiveness of the proposed algorithm . The research carried out and the developed algorithm for calculating the normalized variations of the MFIDF are intended to solve the problems of recognizing Forbush decreases in the time series of the angular matrices o f the registered muon flux.\n\nhttps://indico.particle.mephi.ru/event/35/c ontributions/2424/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2424/ END:VEVENT BEGIN:VEVENT SUMMARY:Analytical solutions at amplitude and time measurements from discr ete sampling of pseudo-Gaussian signals DTSTART;VALUE=DATE-TIME:20201009T151000Z DTEND;VALUE=DATE-TIME:20201009T152500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2307@cern.ch DESCRIPTION:Speakers: Mikhail Bogolyubsky (National Research Center Kurcha tov Institute - Institute for High Energy Physics\, Protvino\, Moscow regi on)\nAmplitude and time measurements from digitized signals of the pseudo- Gaussian shape are considered. This form covers \na big part of applicatio ns. The least squares method (l.s.m.) is chosen as the optimal algorithm f or determining \nsignal amplitude $A$ and timestamp $t_0$. For a pseudo-Ga ussian profile with an uncorrelated sampling \nthe l.s.m. is reduced to an alytical formulas for $A$ and $t_0$ consistent with experimental data. Thi s permits \nto estimate the desired number of points $N_s$ on a profile de pending on electronic noise\, required accuracy of \n$A$\, $t_0$ and elect ronic filter parameters. The obtained results for $N_s$ are illustrated wi th qualitative estimates \nin accordance with the Nyquist-Shannon-Kotelnik ov sampling theorem. The optimality of electronic filter forming the \nwa veform is analyzed in terms of the excess noise factor with calculation of the autocorrelation function from \nstochastic noise sources. It permits to define non-diagonal weight matrix elements in the l.s.m. with formulati on \nof requirements for neglecting of sampling correlations desired for a pplication of the analytical solution. This \nsolution is convenient for a use in processing of signal profile data and it can be a candidate for an algorithm \nembedded into chips to transmit to the external world require d values $A$\, $t_0$\, $\\chi^2$ and number of degrees \nof freedom $N_d$. \n\nhttps://indico.particle.mephi.ru/event/35/contributions/2307/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2307/ END:VEVENT BEGIN:VEVENT SUMMARY:High-performance optimization of simulation and reconstruction mod ules in the BM@N software at the NICA DTSTART;VALUE=DATE-TIME:20201009T144000Z DTEND;VALUE=DATE-TIME:20201009T145500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2283@cern.ch DESCRIPTION:Speakers: Sergei Nemnyugin (Saint Petersburg State University) \nThe Baryonic Matter at the Nuclotron (BM@N) experiment [1] is first expe riment at the NICA (Nuclotron-based Ion \nCollider fAcility) [2]\, where r uns with collection of experimental data have been performed. The software package BmnRoot [3] \nis used both for simulation of setup operation and analysis of experimental data. Due to complexity of algorithms event \nrec onstruction is time-consuming and should be optimized to improve its perfo rmance [4].\n\nExtended hotspot analysis has been performed of the simulat ion and new event reconstruction modules in the BmnRoot package. \nThe res ults of hotspot analysis are analyzed. Both algorithmic and high-performan ce optimizations\nhave been applied. Scalability and efficiency of optimiz ed modules on simulated and experimental data are studied.\n\nThis work is supported by Russian Foundation for Basic Research grant 18-02-40104 mega .\n\nReferences.\n\n1) M.Kapishin for the BM@N Collaboration. Studies of b aryonic matter at the BM@N experiment (JINR). XXVIIth International Confer ence on Ultrarelativistic Nucleus-Nucleus \nCollisions (Quark Matter 2018) . Nuclear Physics A\, V.982\, February 2019\, P. 967.\n2) Design and Const ruction of Nuclotron-based Ion Collider fAcility (NICA). Conceptual Design Report / JINR\, Dubna 2008. 149 p.\n3) Batyuk P.\, Gertsenberger K.\, Mer ts S.\, Rogachevsky O. The BmnRoot framework for experimental data process ing in the BM@N experiment at NICA. EPJ web of conferences. 2019. v.214\, p.05027\n4) Merts S.\, Nemnyugin S.\, Roudnev V.\, Stepanova M. High-Perfo rmance Optimization of Algorithms Used in the BM@N Experiment of the NICA Project. EPJ web of conferences. 2020. v.226\, p.03013\n\nhttps://indico.p article.mephi.ru/event/35/contributions/2283/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2283/ END:VEVENT BEGIN:VEVENT SUMMARY:GPU based photon propagation for CORSIKA 8 DTSTART;VALUE=DATE-TIME:20201009T142500Z DTEND;VALUE=DATE-TIME:20201009T144000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2306@cern.ch DESCRIPTION:Speakers: Dominik Baack (TU Dortmund)\nRight on time for sever al large scale experimental upgrades\, the widely used and long-standing a ir shower simulation toolkit CORSIKA will be updated to a "state of the ar t" C++ simulation framework.\nTo meet the simultaneously rising demand for high-quality air shower simulations and the ecologic necessity to reduce energy consumption several new possibilities for optimizations will be tes ted. \n\nOne of the biggest runtime consumer in the classic simulation is the propagation of fluorescence and Cherenkov photons through the atmosphe re. With the rising popularity of highly parallel computing architectures\ , the runtime of this specific workload can be reduced significantly. In t his Work\, the most common architecture\, in the form of GPUs\, is utilize d for this task. Two competing implementations in Cuda and OpenCL are comp ared and different techniques presented that enable a high GPU utilization .\n\nhttps://indico.particle.mephi.ru/event/35/contributions/2306/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2306/ END:VEVENT BEGIN:VEVENT SUMMARY:The Noble Element Simulation Technique DTSTART;VALUE=DATE-TIME:20201009T141000Z DTEND;VALUE=DATE-TIME:20201009T142500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2308@cern.ch DESCRIPTION:Speakers: Ekaterina Kozlova ()\nNEST (Noble Element Simulation Technique) is a comprehensive\, semi-empirical standalone package for the complete and accurate simulation of both the scintillation light and ioni zation yields of Xenon and Argon for many particle types (nuclear recoils\ , electron recoils\, alphas\, other interactions) as well as resolution an d pulse shapes.\n\nA significant number of updates to the NEST models\, wh ich substantially improved the package\, are presented. Practically all da ta on interactions in liquid\, gas\, even solid Xe media available worldwi de have been taken into consideration in development of the current approa ches. Also\, the first NEST liquid Ar empirical models for mean yields for different particles and their comparison to most available data worldwide will be presented\, and lastly future plans will be discussed.\n\nhttps:/ /indico.particle.mephi.ru/event/35/contributions/2308/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2308/ END:VEVENT BEGIN:VEVENT SUMMARY:Advanced multi-platform visualization framework for particle physi cs experiments DTSTART;VALUE=DATE-TIME:20201009T135500Z DTEND;VALUE=DATE-TIME:20201009T141000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2279@cern.ch DESCRIPTION:Speakers: Alexander Nozik (INR RAS)\nThe 3D visualization and event-display\, in particular\, is an unavoidable part of any modern accel erator and non-accelerator experiment. Currently\, there are a lot of thos e systems - any large experiment develops something on their one. Still\, none of those systems has a stable open-source distribution and most of th em are developed for a specific experiment and hard to port for another ex periment. Any new experiment is forced to implement a new system\, which r equires qualified programmers manpower and the problem is complicated by t he fact that those systems are almost never self-contained and die quickly as soon as they stop being supported by their developers.\nIn this talk\, we would like to present a multi-platform (including web-based tools and virtual reality) dataforge-vis framework which allows designing complicate d dynamic 3d-visualization tools for particle physics without relying on R OOT or any other system.\nThe framework is currently being adopted for BM@ N experiment at NICA.\n\nhttps://indico.particle.mephi.ru/event/35/contrib utions/2279/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2279/ END:VEVENT BEGIN:VEVENT SUMMARY:A gamma-ray imaging camera for NORM radioactivity detection DTSTART;VALUE=DATE-TIME:20201009T094500Z DTEND;VALUE=DATE-TIME:20201009T100000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2309@cern.ch DESCRIPTION:Speakers: Corrado Altomare (INFN and University of Bari)\nGamm a imaging is a technique based on the position reconstruction of gamma-ray radioactive sources. It is widely studied in the field of nuclear physics and has several applications in other fields\, such as in medical physics and in oil well safety control. We built a prototype of a portable gamma camera for real-time and in-situ analysis based on the coded mask techniqu e. The prototype consists of a 4x4 scintillator (CsI:Tl) matrix coupled wi th photomultiplier tubes (PMT)\, equipped with a CAEN digitizer V1725 read out system. The energy resolution of the detector was studied in detail us ing different radioactive sources\, while its spatial reconstruction capab ility and detection sensitivity were investigated using a nuclear waste ba rrel. Experimental results are presented and compared with Monte Carlo sim ulations.\n\nhttps://indico.particle.mephi.ru/event/35/contributions/2309/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2309/ END:VEVENT BEGIN:VEVENT SUMMARY:Results of testing the optical module for the Cherenkov water dete ctor DTSTART;VALUE=DATE-TIME:20201009T093000Z DTEND;VALUE=DATE-TIME:20201009T094500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2287@cern.ch DESCRIPTION:Speakers: Semyon Khokhlov (National Research Nuclear Universit y MEPhI)\, Victor Kindin (National Research Nuclear University MEPhI (Mosc ow Engineering Physics Institute))\, Zarina Izhbulyakova (National Researc h Nuclear University MEPhI (Moscow Engineering Physics Institute))\nIn rec ent years\, many scientific groups working with Cherenkov water neutrino t elescopes (IceCube\, KM3NeT) began the development of new generation of op tical modules (OM). As a rule\, these are modules based on a large number of PMTs in quasispherical configuration which allows getting the response practically independent on Cherenkov light direction. In this regard\, it becomes necessary to develop new methods for testing of optical modules in an environment as close as possible to the working conditions inside the neutrino telescopes. \n For the calibration of OMs\, usually LED or las er sources with fixed wavelengths are used. They cannot imitate the contin uous spectrum and the directionality of the Cherenkov radiation sufficient ly well. Therefore the calibration of these OMs in a Cherenkov water detec tor is advantageous. NEVOD is presently worldwide the only setup which mee ts these requirements.\n The possibility to calibrate new optical modul es mDOM of the IceCube-Upgrade neutrino telescope inside the tank of the C herenkov water detector NEVOD is discussed. Methods to calibrate optical m odules are presented. Methods have been tested with quasispherical optical module QSM-6\, in which FEU-200 PMTs were replaced by Hamamatsu R877 phot omultipliers. The spatial lattice of the NEVOD detector and calibration t elescope system and coordinate-tracking detector DECOR deployed outside of the water tank allow calibrating the response of OM to the Cherenkov ligh t from muons\, muon bundles and cascades with known trajectories.\n\nhttps ://indico.particle.mephi.ru/event/35/contributions/2287/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2287/ END:VEVENT BEGIN:VEVENT SUMMARY:Simulation of the response of the URAN and PRISMA-32 facilities to the passage of the EAS DTSTART;VALUE=DATE-TIME:20201009T091500Z DTEND;VALUE=DATE-TIME:20201009T093000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2285@cern.ch DESCRIPTION:Speakers: Zarina Izhbulyakova ()\nA new method for studying th e hadron component of EAS was recently developed. This method is based on registration of thermal neutrons that are generated as a result of interac tions of shower hadrons with atomic nuclei in the atmosphere and the envir onment. The PRISMA-32 and URAN arrays were created at the Unique Scientifi c Facility NEVOD (MEPhI) to register the neutron component of EAS correspo nding to E ~ 10^15 eV energy range of primary particles. The electron-neut ron (en)-detectors are based on thin layers of inorganic scintillators whi ch are sensitive to thermal neutrons. To correctly interpret array’s exp erimental data\, it was necessary to carry out model calculations. So\, a mathematical model of the PRISMA-32 and URAN facilities has been developed . Simulation of the EAS was carried out using the CORSIKA7.6900 program. G eant4.10.5 software package was used to simulate the arrays’ response. I nstallations' geometry is close to a real one. A detailed analysis of the response of the models of PRISMA-32 and URAN arrays to the neutron and cha rged components of EAS was carried out. The report includes the dependence s of the average number of registered neutrons on the shower size and prim ary particle energy\, the LDF of charged particles and the LDF of thermal neutrons. A comparison of the experimental data with model calculations is presented.\n\nhttps://indico.particle.mephi.ru/event/35/contributions/228 5/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2285/ END:VEVENT BEGIN:VEVENT SUMMARY:The SuperFGD for the T2K near detector upgrade DTSTART;VALUE=DATE-TIME:20201009T085500Z DTEND;VALUE=DATE-TIME:20201009T091500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2301@cern.ch DESCRIPTION:Speakers: Dana Douqa (University of Geneva\, Switzerland)\nTok ai-to-Kamioka (T2K) experiment is a long baseline neutrino experiment in J apan. T2K started data taking in 2010 and obtained a hint on matter-antima tter asymmetry in neutrino oscillations. To provide better sensitivity\, T 2K plans to have a run extension with higher intensity beam and an upgrad e of the T2K near detector. We adopted a novel detector called SuperFGD as an upgraded fully-active target tracker. It consists of about two million s of plastic scintillator cubes and about sixty-thousand readouts through WLS fibers and MPPCs. It provides fine granularity and larger acceptance t o suppress systematic error. The new detector will be ready to accept the beam in 2022. We will report the current status of the new detector.\n\nht tps://indico.particle.mephi.ru/event/35/contributions/2301/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2301/ END:VEVENT BEGIN:VEVENT SUMMARY:Future physics program and prospectives for the NA61/SHINE large a cceptance particle spectrometer at the CERN SPS. DTSTART;VALUE=DATE-TIME:20201009T083500Z DTEND;VALUE=DATE-TIME:20201009T085500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2292@cern.ch DESCRIPTION:Speakers: Andrey Seryakov (SPSU)\nThe NA61/SHINE collaboration accomplished the originally proposed program\nof data taking at the end o f 2018. The new 2020+ research plan will be presented.\nIt includes:\n \n - the new upgraded experimental setup\;\n- the open-charm production in Pb +Pb collisions which has never been measured at such low energies\;\n- imp roved hadron production measurements for current and future Long-Baseline Neutrino experiments\;\n- nuclei fragmentation studies for understanding t he propagation of cosmic rays in the Galaxy.\n\nThe ideas for new studies after the CERN LS3 will be discussed.\n\nhttps://indico.particle.mephi.ru/ event/35/contributions/2292/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2292/ END:VEVENT BEGIN:VEVENT SUMMARY:Feasibility studies for the measurement of single-spin asymmetry i n inclusive K0s production at pion beam at U70. DTSTART;VALUE=DATE-TIME:20201009T082000Z DTEND;VALUE=DATE-TIME:20201009T083500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2311@cern.ch DESCRIPTION:Speakers: Nikita Kalugin (IHEP\, Protvino\, Russia)\nThe SPASC HARM experiment is ready to study spin effects in inclusive production of various particles on polarized target. Comissioning and first data taking run demonstrated that the SPASCHARM setup is ready to measure single spin asymmetry in the fragmentation region of the unpolarized 28 GeV pion beam. We studied the feasibility to measure single spin asymmetry in the reacti on π^- p^↑→K_s^0 X at the SPASCHARM experiment. We present the estima tes of the reconstruction efficiency and the expected number of detected e vents and accuracy of the measurements for 30-day long data taking run. Re sults of the Monte-Carlo simulation demonstrate that the expected statisti cs will allow to measure single-spin asymmetry with accuracy about few per cent.\n\nhttps://indico.particle.mephi.ru/event/35/contributions/2311/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2311/ END:VEVENT BEGIN:VEVENT SUMMARY:Soft photon study at NICA's facilities DTSTART;VALUE=DATE-TIME:20201009T080000Z DTEND;VALUE=DATE-TIME:20201009T082000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2297@cern.ch DESCRIPTION:Speakers: Elena Kokoulina ()\nOver 30 years there has been no comprehensive understanding of the mechanism of soft photons formation (en ergy smaller 50 MeV). Experimental data indicate an excess of their yield in hadron and nuclear interactions in comparison with calculations perform ed in QED. In JINR\, in connection with the building of a new accelerator complex NICA\, it has become possible to carry out such studies in pp\, pA and AA interactions at energies up to 25 A GeV. Our group develops the co nception of an electromagnetic calorimeter on type “shashlyk” based on gadolinium gallium garnet (GaGG) crystals\, which have significantly lowe r the threshold for registration of photons. The first tests of electromag netic calorimeters manufactured at JINR on the basis of the GaGG and a mix ture of tungstate and copper are reported.\n\nhttps://indico.particle.meph i.ru/event/35/contributions/2297/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2297/ END:VEVENT BEGIN:VEVENT SUMMARY:Development and characterization of novel silicon sensors for neut ron detection DTSTART;VALUE=DATE-TIME:20201008T094500Z DTEND;VALUE=DATE-TIME:20201008T100000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2295@cern.ch DESCRIPTION:Speakers: Anna Mastroberardino (Università della Calabria)\nT he planned final upgrade of the LHC accelerator at CERN\, namely the high luminosity phase of the LHC (HL-LHC)\, foreseen beyond 2026\, will mean un precedented radiation levels\, Due to the radiation damage limitations of the silicon sensors presently used\, new radiation-hard tracking\ndetector s will be required by the physics experiments.\n3D silicon pixel detectors are among the radiation-hard solutions designed for the extreme radiation levels expected for the vertexing layers at the HL-LHC.\nThe 3D technolog y features electrodes penetrating inside the silicon bulk. While keeping a high carrier collection efficiency in heavily irradiated detectors\, this configuration minimizes the detector dead border region.\nNeutron detecto rs fabricated with 3D technologies and coupled to different neutron conver ter materials have recently been the object of an increasing interest for possible replacement of 3He detectors.\nIn the framework of the INFN DEEP_ 3D (Detectors for neutron imaging with Embedded Electronics Produced in 3D technology) project\, a new monolithic detector for neutrons coupled with boron\, lithium or their combination\, is presented.\nThe talk will cover aspects relevant to the electronics design\, layout and validation of the key technological steps of these innovative 3D pixel sensors.\n\nhttps:// indico.particle.mephi.ru/event/35/contributions/2295/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2295/ END:VEVENT BEGIN:VEVENT SUMMARY:Radiation hardness of GaAs: Cr semiconductor detectors after irrad iation with fast neutrons at the IBR-2 reactor. DTSTART;VALUE=DATE-TIME:20201008T093000Z DTEND;VALUE=DATE-TIME:20201008T094500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2284@cern.ch DESCRIPTION:Speakers: Uladzimir KRUCHONAK (JINR)\nInvestigation of the sem iconductor detectors properties under neutron irradiation is very importan t for their practical application. High-resistivity gallium arsenide detec tors (GaAs:Cr) were irradiated at the reactor IBR-2 with various fast neut ron fluences in range from 4×1011 см-2 to 5×1017 cm-2. The charge col lection efficiency and the current-voltage characteristics of irradiated d etectors were measured\, and their degradation after neutron irradiation w as compared with the results obtained by irradiation with 20 MeV electrons \n\nhttps://indico.particle.mephi.ru/event/35/contributions/2284/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2284/ END:VEVENT BEGIN:VEVENT SUMMARY:Improving the precision of calibrating a large low-background prop ortional counter DTSTART;VALUE=DATE-TIME:20201008T091500Z DTEND;VALUE=DATE-TIME:20201008T093000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2280@cern.ch DESCRIPTION:Speakers: V.V. Kazalov (INR RAS)\nThe fundamental difference b etween low-background nuclear-physical measurements and other types of stu dies of the characteristics of ionizing radiation sources is the extremely low total event count rate. Therefore\, all recording devices in such exp eriments are oriented to work with individual signals. Spectrometric measu rements of low-energy ionizing radiation using gas detectors are mainly ca rried out in the proportional amplification mode. The proportional counter is an excellent detector for the soft x-ray region because it is saturabl e\, energy selective and has high-absorption efficiency as well as a very good signal to noise ratio. The search for such a rare nuclear decay as th e simultaneous capture of two orbital electrons by the same noble gas isot ope nucleus by recording x-rays and Auger electrons is possible using larg e proportional counters. The characteristics of these counters must satisf y a number of conditions\, since the intrinsic radiation\, a background of the detectors must be ultra-low and the spectrometric characteristics mus t be stable during sufficiently long measurements. \n\nModern equipment al lows us to record the full shape of the signals in digital form from sever al channels simultaneously. Subsequent analysis with specially developed s oftware algorithms allows obtain the desired dependencies and divide event s into separate groups. Such information is of particular value when condu cting low-background measurements\, in which the useful effect is a small fraction of the total count rate. In this case\, the selection of events w ith parameters corresponding to the effect can significantly increase the effect/background ratio. The quality of such a selection depends on the co mpleteness of taking into account the features of the response function to the desired events inherent in a particular operating mode of the gas det ector.\n\nExperiments on the study of double decay processes with the capt ure of electrons of the inner atomic shell in different isotopes of high-p urity noble gases are ongoing for a long time at the Baksan Neutrino Obser vatory of the INR RAS using several 10.93-liter copper proportional counte rs. The experience of long-term measurements related to a search of 2$\\nu $2K capture with samples of different enriched for $^{78}$Kr and $^{124}$X e using large proportional counters with a casing made of M1-grade copper showed that the spectrometric properties of the detector quite noticeably degrade over time.\n\nIn this report\, we will focus on the analysis of ch anges in spectrometric properties overtime of a detector filled with xenon during long measurements\, in contrast to krypton\, which does not have l ong-lived radioactive isotopes that allow enough proper calibration from i nternal sources.\n\nhttps://indico.particle.mephi.ru/event/35/contribution s/2280/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2280/ END:VEVENT BEGIN:VEVENT SUMMARY:Geant4 quartz fiber simulations as part of luminometer development for CMS DTSTART;VALUE=DATE-TIME:20201008T090000Z DTEND;VALUE=DATE-TIME:20201008T091500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2425@cern.ch DESCRIPTION:Speakers: Дарья Селиванова ()\, Orhan Aydilek ( )\, Salim Cerci ()\, Suat Ozkorucuklu ()\, Deniz Sunar Cerci ()\nFor the n ew upcoming era of LHC with higher energies and a more complex structure o f the beam (HL-LHC) measurements of luminosity are required to be exceedin gly accurate. A new device is being developed for CMS experiment to fulfil l such demands as stand-alone\, robust and precise. The design\, main comp onents and physics behind the new quartz fiber based luminometer (QFL) are described. Simulations of the main component of the detector – a single quartz fiber – are demonstrated. The results of the simulations are com pared with experimental data\, gathered using a setup build in MEPhI.\n\nh ttps://indico.particle.mephi.ru/event/35/contributions/2425/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2425/ END:VEVENT BEGIN:VEVENT SUMMARY:Planacon XP85002/FIT-Q MCP-PMTs for the ALICE FIT detector DTSTART;VALUE=DATE-TIME:20201008T084500Z DTEND;VALUE=DATE-TIME:20201008T090000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2166@cern.ch DESCRIPTION:Speakers: Yury Melikyan (INR RAS)\nThe new Fast Interaction Tr igger (FIT) detector\, composed of Cherenkov and scintillation subsystems\ , will serve as the main luminometer and trigger detector of the upgraded ALICE experiment at CERN during the LHC Run 3 and 4. It will also measure the precise collision time\, multiplicity\, centrality and reaction plane. FIT Cherenkov subsystem\, intended mainly for the precise timing measurem ents\, consists of two arrays of Cherenkov counters with quartz radiators readout by 52 (+10 spare) customized Planacon MCP-PMT photosensors. \nThe entire production consignment of 62 units of XP85002/FIT-Q MCP-PMTs was th oroughly characterized\, including amongst others measurements of gain as a function of the bias voltage and the heat-up time\, load capacity in ter ms of the average anode current and level of afterpulsing. Selected charac teristics\, such as load capacity and gain\, were remeasured in a magnetic field up to 0.5 T reproducing the conditions inside of the ALICE L3 magne t. This presentation will summarize the results and highlight some of the performance issues we have encountered during the tests. Since our data sa mple is extensive and covers relatively scarcely documented properties of these sensors\, this compilation may be of interest to other groups buildi ng PID detectors for accelerator-based experiments.\n\nhttps://indico.part icle.mephi.ru/event/35/contributions/2166/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2166/ END:VEVENT BEGIN:VEVENT SUMMARY:ALICE FIT data processing and performance during LHC Run3 DTSTART;VALUE=DATE-TIME:20201008T083000Z DTEND;VALUE=DATE-TIME:20201008T084500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2304@cern.ch DESCRIPTION:Speakers: Alla Maevskaya (INR RAS)\nDuring the upcoming Run 3 and Run 4 at the LHC the upgraded ALICE (A Large Ion Collider Experiment) will operate at a significantly increased luminosity and bunch crossing a nd will collect two orders of magnitude more events than in Run 1 and Run 2. A part of the ALICE upgrade is the new Fast Interaction Trigger (FIT) [ 1]. This thoroughly redesigned detector combines\, in one system\, the fun ctionality of four forward detectors used by the ALICE experiment during t he LHC Run 2: T0\, V0\, FMD and AD. As part of the online functionality\, FIT will monitor luminosity and background\, provide real-time feedback to the LHC\, and generate minimum bias\, vertex and centrality triggers. Dur ing the offline analysis FIT data will be used to extract the precise coll ision time needed for time-of-flight particle identification. During the h eavy-ion collisions\, FIT will also determine multiplicity\, centrality an d event plane. FIT electronics is designed to function both in the continu ous and the triggered readout mode.\n\nIn this presentation I will describ e the FIT simulation software and raw data processing. The focus will be o n the detector performance\, especially\, triggers efficiencies\, collisio n time and centrality resolution.\n\n \n\nReferences\n\n[1] W. H. Trzaska. New Fast Interaction Trigger for ALICE. Nucl. Instrum. Methods Phys. Res. A\, 845:463–466\, 2017. 10.1016/j.nima.2016.06.029.\n\nhttps://indico.p article.mephi.ru/event/35/contributions/2304/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2304/ END:VEVENT BEGIN:VEVENT SUMMARY:Validation of Geant4 simulation and digitisation of a SiPM-on-tile system DTSTART;VALUE=DATE-TIME:20201008T081500Z DTEND;VALUE=DATE-TIME:20201008T083000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2286@cern.ch DESCRIPTION:Speakers: Sergey Korpachev (LPI)\nThe increase of transverse s egmentation is a trend in developments of modern calorimeter systems based on different technologies. The scintillator calorimeters assembled from S iPM-on-tile elements are now under development for future experiments at b oth lepton and hadron colliders. The study presents a validation of simula tion of the response of a single SiPM-on-tile element. The experimental me asurements are compared with the simulation using Geant4 framework followe d by the digitisation procedure that takes into account photodetector char acteristics. The dependence on simulated optical properties is discussed a nd parameters are presented\, which help to achieve a good agreement betwe en data and simulation.\n\nhttps://indico.particle.mephi.ru/event/35/contr ibutions/2286/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2286/ END:VEVENT BEGIN:VEVENT SUMMARY:Development of the scintillation detector prototypes with SiPM rea dout for SPD at NICA DTSTART;VALUE=DATE-TIME:20201008T080000Z DTEND;VALUE=DATE-TIME:20201008T081500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2305@cern.ch DESCRIPTION:Speakers: Aleksey Tishevskiy ()\nThe Beam-Beam Counter is a system for local polarimetry and local luminosity monitoring at the Spin P hysics Detector at NICA. The main option of the Beam- Beam Counter for SPD at NICA is the scintillation counters with SiPM readout. The work present s the first results on scintillation detector prototype using developed Fr ont-end electronics (FEE) based on the Time-over-Threshold (ToT) technique . The procedure of the time-walk correction is discussed.\n\nhttps://indic o.particle.mephi.ru/event/35/contributions/2305/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2305/ END:VEVENT BEGIN:VEVENT SUMMARY:Mechanic and cooling systems for the new pixel detectors in High e nergy physics experiments DTSTART;VALUE=DATE-TIME:20201007T165500Z DTEND;VALUE=DATE-TIME:20201007T171000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2423@cern.ch DESCRIPTION:Speakers: Dmitrii Nesterov (Saint-Petersburg State University) \nNowadays the silicon detectors are playing a significant role in the exp erimental studies of the nuclear matter properties. Using ultra-thin silic on pixel detectors for high-precision identification of charged particles it should be possible to investigate the new properties of nuclear matter arising in relativistic nuclear collisions. To provide stable operational conditions of such detectors\, the efficient mechanic and cooling systems at minimum material budget are used.\nIn present work\, the ideas and deve lopments for mechanic and cooling systems for the new vertex detectors bas ed on silicon pixel sensors have been presented. \nThe reported study was supported by RFBR\, research project No. 18-02-40075.\n\nhttps://indico.pa rticle.mephi.ru/event/35/contributions/2423/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2423/ END:VEVENT BEGIN:VEVENT SUMMARY:Study of charge sharing effect in a GaAs:Cr-based Timepix3 detecto r DTSTART;VALUE=DATE-TIME:20201007T164000Z DTEND;VALUE=DATE-TIME:20201007T165500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2291@cern.ch DESCRIPTION:Speakers: Daniil Rastorguev (JINR\, MIPT)\nHybrid pixel semico nductor detectors find more and more applications in modern experimental s etups. In particular\, pixelated detectors based on GaAs:Cr sensor and Tim epix3 chip are used in R&D for a state-of-the-art Transition Radiation Det ector prototype at CERN. Motivation and usage aspects for GaAs:Cr-Timepix3 device in the experiment are covered in the talk. Author’s contribution to the work of the research group is a study of charge collection and tra nsportation processes in the sensor including fluorescence and so-called c harge sharing effect. These are able to significantly affect both spatial and energy resolution of the system. Estimates for the effects are obtaine d via numerical modelling and then used to analyze the impact on the detec tor performance.\n\nhttps://indico.particle.mephi.ru/event/35/contribution s/2291/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2291/ END:VEVENT BEGIN:VEVENT SUMMARY:A concept of the transition radiation detector for a hadron separa tion in a forward direction of the LHC experiments DTSTART;VALUE=DATE-TIME:20201007T162000Z DTEND;VALUE=DATE-TIME:20201007T164000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2302@cern.ch DESCRIPTION:Speakers: Vladimir Tikhomirov (P.N.Lebedev Physical Institute RAS)\nStudying of hadron production in forward direction at the LHC energy has\na great interest both for understanding of the fundamental QCD proce sses\nand also in applied areas such as the description of \nultra-high en ergy cosmic particle interactions.\nSince the energies of secondary hadron s in such studies almost reaches \nthe maximum energy available at the LHC of $\\sim$6 TeV\, the most effective \ntechnique for particle identificat ion is based on the transition radiation \ndetectors (TRD). \nWe propose a concept of TRD based on straw proportional tubes with specially\ndesigned radiators and suitable for identification of hadrons with \nLorentz $\\ga mma$-factor up to 10$^4$ and above.\nA prototypes of such kind of detector were built and tested at the CERN SPS \naccelerator. \nSome experimental results obtained are shortly observed here as well as \ncorresponding Mont e Carlo simulation model showing perfect agreement \nwith the experiment. \nOn this basis the concept of full-scale TRD was developed and tuned for\ nhadron identification in TeV energy region. \nDifferent particle identifi cation techniques were proposed and tested. \nFinally\, we present the exp ected detector performance in composition \nreconstruction of secondary ha drons produced in forward direction at the LHC.\n\nhttps://indico.particle .mephi.ru/event/35/contributions/2302/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2302/ END:VEVENT BEGIN:VEVENT SUMMARY:Registration of the transition radiation with GaAs detector: data/ MC comparison DTSTART;VALUE=DATE-TIME:20201007T160500Z DTEND;VALUE=DATE-TIME:20201007T162000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2298@cern.ch DESCRIPTION:Speakers: Nikita Belyaev ()\nNew developments of pixel detecto rs based on GaAs sensors offer effective registration of the Transition r adiation X-rays and perfom simultanious measurements of thier energies and the emission angles. This unique feature opens new possibilities for part icle identification on the basis of maximum available information about ge nerated TR photons. Results of studies of TR energy-angular distributions using GaAs sensor bonded to TimePix3 chip are presented. Measurements\, analysis techniques and a comparison with MC simulations will be descried and discussed.\n\nhttps://indico.particle.mephi.ru/event/35/contributions/ 2298/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2298/ END:VEVENT BEGIN:VEVENT SUMMARY:Gas gain study of a large-size multilayer Micromegas DTSTART;VALUE=DATE-TIME:20201007T155000Z DTEND;VALUE=DATE-TIME:20201007T160500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2293@cern.ch DESCRIPTION:Speakers: Filipp Dubinin (LPI RAS)\nThe results of the study o f a large-size\, multilayer Micromegas detector with X-ray source Cd-109 a re discussed. The detector consists of 4 layers\, each of them is a Microm egas detector with resistive anode and strip-based read-out structure. The gas volume of the chamber is splitted to 4 parts interconnected in 6 poin ts. Results of the measurements of the gas gain curves and the 1st Townsen d coefficient as well as the E_amp/E_drift characteristics are presented a nd discussed. Based on this results it is shown the presents of gas leak i n the module\, influence of the leak on operation of the module is estimat ed.\n\nhttps://indico.particle.mephi.ru/event/35/contributions/2293/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2293/ END:VEVENT BEGIN:VEVENT SUMMARY:Commissioning of the new small-diameter Monitored Drift Tube detec tors for the phase-1 upgrade of the ATLAS muon spectrometer. DTSTART;VALUE=DATE-TIME:20201007T153500Z DTEND;VALUE=DATE-TIME:20201007T155000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2165@cern.ch DESCRIPTION:Speakers: Elena Voevodina (Max Planck Institut für Physik - W erner Heisenberg Institute)\nThe Muon Drift Tube (MDT) chambers provide ve ry precise and reliable muon tracking and momentum measurement in the ATLA S muon spectrometer. Already in Run 2 of the LHC they have to cope with ve ry high background counting rates up to 500 $Hz/cm^2$ in the inner endcap layers. At High-Luminosity LHC (HL-LHC)\, the background rates are expecte d to increase by almost a factor of 10. New small (15 mm)-diameter Muon Dr ift Tube (so-called sMDT) detectors have been developed for upgrades of th e muon spectrometer. They provide an about an order of magnitude higher ra te capability and allow for the installation of additional new triple-RPC trigger chambers in the barrel inner layer of the muon detector for HL-LHC . They have been designed for mass production at the Max Planck Institute (MPI) for Physics in Munich and achieve a sense of wire positioning accura cy of 5 microns. A pilot project for the barrel inner layer upgrade is und erway during the 2019/20 LHC shutdown. Several sMDT chambers have already been installed and operated in the ATLAS detector. The detailed studies of the muon detection efficiency and muon track resolution have been carried out after the assembling of the sMDT detectors in MPI and repeated at CER N after the integration with the new tRPC detectors. The author will descr ibe the detector design\, the quality assurance and certification path\, a s well as will present the status of the installation and commissioning\, worth its preliminary results and an overview for the complete integration of the sMDT project In the ATLAS experiment.\n\nhttps://indico.particle.m ephi.ru/event/35/contributions/2165/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2165/ END:VEVENT BEGIN:VEVENT SUMMARY:Status of the Phase-2 Tracker Upgrade of the CMS experiment at the HL-LHC DTSTART;VALUE=DATE-TIME:20201007T151500Z DTEND;VALUE=DATE-TIME:20201007T153500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2164@cern.ch DESCRIPTION:Speakers: Luigi Calligaris (UNESP - São Paulo State Universit y)\nThe Phase-2 Upgrade of the CMS experiment is designed to prepare its d etectors for operation at the High Luminosity Large Hadron Collider (HL-LH C). The upgraded collider will begin operation in 2027\, featuring new cha llenging conditions in terms of data throughput\, pile-up and radiation\, reasons for which the tracker detector will be entirely replaced by a new design. We present the current development activities ongoing in CMS aimed at the design\, test and validation of the components of the tracker dete ctor\, and its read-out\, calibration\, control\, and data processing chai ns.\n\nhttps://indico.particle.mephi.ru/event/35/contributions/2164/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2164/ END:VEVENT BEGIN:VEVENT SUMMARY:Status of the installation and commissioning of the first GEM stat ion at the CMS experiment DTSTART;VALUE=DATE-TIME:20201007T145500Z DTEND;VALUE=DATE-TIME:20201007T151500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2281@cern.ch DESCRIPTION:Speakers: Francesco Fallavollita (CERN)\nThe foreseen upgrade of the Large Hadron Collider (LHC) will lead to an increase of its luminos ity up to $5$-$7 \\times 10^{34} \\\, cm^{-2}s^{-1}$\, five times more tha n the original design value. The CMS muon system must be able to sustain a physics program after the increase of luminosity and maintain sensitivity for electroweak physics for TeV scale searches achieved during Run 2. To cope with the corresponding increase in background rates and trigger requi rements\, the installation of additional sets of muon detectors based on G as Electron Multiplier (GEM) technology\, referred to as GE1/1\, GE2/1 and ME0\, has been planned. The installation and commissioning of the GE1/1 d etectors in the CMS experiment have been scheduled in two separate phases: the first 72 detectors have been already installed together with their se rvices (gas\, cooling\, low voltage and high voltage) in 2019 and they are undergoing the commissioning phase\, while the completion of the station is foreseen in autumn 2020. The author will describe the detector design\, the quality assurance and certification path\, as well as will present th e status of the installation and commissioning\, worth its preliminary res ults and an overview for the complete integration of the GE1/1 project on the CMS experiment.\n\nhttps://indico.particle.mephi.ru/event/35/contribut ions/2281/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2281/ END:VEVENT BEGIN:VEVENT SUMMARY:Upgrade of the ATLAS Hadronic Tile Calorimeter for the High Lumino sity LHC DTSTART;VALUE=DATE-TIME:20201007T094000Z DTEND;VALUE=DATE-TIME:20201007T100000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2303@cern.ch DESCRIPTION:Speakers: Christophe Clement (Stockholm University)\nThe Tile Calorimeter (TileCal) is the hadronic calorimeter covering the central reg ion of the ATLAS experiment. It is a sampling calorimeter with steel as ab sorber and scintillators as active medium. The scintillators are read-out by wavelength shifting fibers coupled to photomultiplier tubes (PMTs). Th e TileCal response and its readout electronics are monitored to better tha n 1% using radioactive source\, laser and charge injection systems. \nBoth the on- and off-detector TileCal electronics will undergo major upgrades in preparation for the high luminosity phase of the LHC (HL-LHC) expected to begin in 2027\, so that the system can cope with the HL-LHC increased r adiation levels and out-of-time pileup and can meet the requirements of a 1 MHz trigger. \nPMT signals from every TileCal cell will be digitized and sent directly to the back-end electronics\, where the signals are reconst ructed\, stored\, and sent to the first level of trigger at a rate of 40 M Hz. This will provide better precision of the calorimeter signals used by the trigger system and will allow the development of more complex trigger algorithms. \n \nThe TileCal upgrade program has included extensive R&D an d test beam studies. A Demonstrator module with reverse compatibility with the existing system was inserted in ATLAS in August 2019 for testing in a ctual detector conditions. \nThe main features of the TileCal upgrade prog ram and results obtained from the Demonstrator tests will be discussed.\n\ nhttps://indico.particle.mephi.ru/event/35/contributions/2303/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2303/ END:VEVENT BEGIN:VEVENT SUMMARY:Performance and upgrade plans of the ALICE Photon Spectrometer DTSTART;VALUE=DATE-TIME:20201007T090000Z DTEND;VALUE=DATE-TIME:20201007T092000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2415@cern.ch DESCRIPTION:Speakers: Dmitry Blau (NRC "Kurchatov Institute")\nPHOS is a h ighly granulated precision spectrometer\, one of the two\nelectromagnetic calorimeters of ALICE (A Large Ion Collider Experiment)\nat the LHC. It is based on scintillating PbWO4 crystals and is\ndedicated to the precise me asurements of spectra\, collective flow and\ncorrelations of thermal and p rompt direct photons\, and of neutral mesons\nin ultra-relativistic nuclea r collisions at LHC energies. PHOS\nparticipated in LHC Run 1 (2009-2013) and Run 2 (2015-2018)\, during which a large\namount of physical data were collected in pp\, p-Pb and Pb-Pb collisions.\n\nThe choice of active mate rial with small Molière radius allows PHOS to\noperate in a high-multipli city environment and to reconstruct neutral pions\nby two-photon decays up to very high transverse momenta ~60 GeV/c. In\norder to increase the ligh t yield of the crystals and reduce electronic noise\,\nPHOS is cooled down and kept at a constant temperature of -25^{\\circ} C. This resulted in\ne xcellent energy and position resolutions. Dedicated L0 and L1\ntriggers we re used to increase collected integrated luminosity during\ndata taking.\n \nWe will present an overview of the PHOS performance during Runs 1 and 2 and plans for\nan upgrade for LHC Run 4 (currently expected for 2025-2027) and beyond. PHOS\nupgrade is ongoing and covers the following three aspec ts: front-end cards (FEC)\nusing modern components to improve timing resol ution and operation\nreliability\; photodetectors to increase sensitivity to\nlow-energy photons and to improve timing resolution\; mechanical struc ture of \nmodules to ease access to FEC and improve\noperation reliability . The physics program of the upgraded PHOS will also be\ndiscussed.\n\nhtt ps://indico.particle.mephi.ru/event/35/contributions/2415/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2415/ END:VEVENT BEGIN:VEVENT SUMMARY:Forward hadron calorimeter (PSD) upgrade for the NA61/SHINE experi ment DTSTART;VALUE=DATE-TIME:20201007T084500Z DTEND;VALUE=DATE-TIME:20201007T090000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2418@cern.ch DESCRIPTION:Speakers: Sergey Morozov (INR/MEPhI)\nThe main purpose of the forward hadron calorimeter (Projectile Spectator Detector PSD) in the NA61 /SHINE experiment is to provide an experimental measurement of a heavy-ion collision centrality and orientation of its reaction plane. Precise event -by-event estimate of these basic observables is crucial for many physics phenomena studies to be performed by the NA61 Collaboration. The PSD is a modular compensating lead-scintillator calorimeter designed to measure the energy distribution of the projectile nuclei fragments (spectators) and f orward going particles produced close to the beam rapidity. Each module of the PSD has a lead-scintillator sandwich structure with longitudinal segm entation. A scintillator light readout is provided by WLS-fibers and by si licon photomultipliers (micropixel avalanche photodiodes).\n In order to fulfill the future requirements for NA61/SHINE experiment upgrade the PSD has been re-designed. The beam rate at NA61/SHINE is expected to be increa sed ten times. To prevent radiation damage of PSD modules the new calorime ter system consist of two calorimeters: main PSD (MPSD) with a beam hole i n the center and forward PSD (FPSD) as a beam dump downstream of NA61/SHIN E experiment area. The new approaches for centrality determination with up graded forward hadron calorimeter system will be discussed. The first resu lts of MPSD + FPSD performance tests will be presented.\n\nhttps://indico. particle.mephi.ru/event/35/contributions/2418/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2418/ END:VEVENT BEGIN:VEVENT SUMMARY:Time response simulation of a “shashlyk”-type calorimeter as a pplied to ECAL MPD / NICA DTSTART;VALUE=DATE-TIME:20201007T083000Z DTEND;VALUE=DATE-TIME:20201007T084500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2299@cern.ch DESCRIPTION:Speakers: Aleksei Skobliakov (NRC ”Kurchatov Institute” - ITEP)\nSampling calorimeters of the "shashlyk" type are widely used in hig h-energy physics due to the low cost of construction materials and good en ergy resolution. Using this technology\, within the framework of the NICA / MPD project\, a cylindrical electromagnetic calorimeter (ECAL) with a di ameter of 4 m and a length of 6 m is being created. It contains 38400 towe rs of the "shashlyk" type with a total weight of about 60 tons. The towers represent a truncated pyramid with a base of 4x4 cm2\, containing 200 alt ernating 1.5 mm thick polystyrene scintillator and 0.3 mm thick lead plat es pierced with 16 Kuraray Y11 wavelength shifting (WLS) fibers 1.2 mm in diameter for collecting light on an avalanche silicon multipixel photon co unter (MPPC) Hamamatsu S13360-6025PE (~ 64000 cells) with an area of 6x6 m m2. In this configuration\, one can hope to obtain subnanosecond time reso lution for ECAL towers. This will expand the capabilities of ECAL in parti cle identification\, background rejection and clustering in high multiplic ity events. .This report is devoted to modeling the time response of ECAL. In full\, this task is reduced to obtaining the distribution of energy re lease in scintillators\, converting it into blue light\, collecting these photons on the WLS fibers\, converting blue to green light and capture i t in fibers\, transportation to the MPPC\, shaping its output signal and r egistration by digital electronics. Results are given for a part of this c ommon task. GEANT4 environment has unique possibilities of Monte Carlo sim ulation\, which has been repeatedly tested for calculations in the areas o f high energy density of matter\, astrophysics\, accelerator physics\, and radiation medicine\, in which most of the well-studied processes of inter action of particles and radiation with matter are taken into account\, inc luding optical processes\, scintillation\, Cherenkov radiation\, interacti on of photons with the boundaries of media\, wavelengths shifting in fiber s and others. Within the framework of the GEANT4 package\, a numerical sim ulation of the light collection from the ECAL tower was carried out. The i nfluence of reflective coatings of the scintillator surface\, the propagat ion of light in fibers\, taking into account their multilayer structure an d light reflection from their ends\, as well as the effects of joining a f iber bundle with an MPPC are considered. The time shapes of the light sign al at the MPPPC input were obtained\, both taking into account only geomet ric effects and with the scintillation and WLS reemission decay times. This work was supported by the Russian Foundation for Basic Research\, Gr ant No. 18-02-40054\n\nhttps://indico.particle.mephi.ru/event/35/contribut ions/2299/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2299/ END:VEVENT BEGIN:VEVENT SUMMARY:Electron beam test of the MPD electromagnetic calorimeter on the «Pakhra» synchrotron DTSTART;VALUE=DATE-TIME:20201007T080000Z DTEND;VALUE=DATE-TIME:20201007T081500Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2310@cern.ch DESCRIPTION:Speakers: M.A. Martemianov (NRC ”Kurchatov Institute” - IT EP\, Moscow 117218\, Russia)\nThe high-granularity electromagnetic calorim eter (ECal) of the Multi-Purpose Detector (MPD) at heavy-ion NICA collider is designed to measure precisely the spatial position and energy of photo ns and electrons in the case of high density of the secondary particles fr om heavy-ion collisions. These requirements can be achieved by a high segm entation of the calorimeter within projective geometry. Each calorimeter cell has a sampling structure from alternating layers of 1.5 mm plastic s cintillator and 0.3 mm lead. The calibration measurements were realized at the beginning of 2020 on the electron beam of S-25P synchrotron «Pakhra » of the Lebedev Physics Institute. An assembly of three calorimeter modu les (48 cells) was tested using electrons with energies from 30 to 300 MeV . The experimental results in comparison with simulated data are presented and discussed. This work was supported by RFBR grants No. 18-02-40079.\n\ nhttps://indico.particle.mephi.ru/event/35/contributions/2310/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2310/ END:VEVENT BEGIN:VEVENT SUMMARY:Calibration of NICA-MPD electromagnetic calorimeter modules with c osmic muons DTSTART;VALUE=DATE-TIME:20201007T081500Z DTEND;VALUE=DATE-TIME:20201007T083000Z DTSTAMP;VALUE=DATE-TIME:20260719T071051Z UID:indico-contribution-177-2294@cern.ch DESCRIPTION:Speakers: Maharnab Bhattacharjee (JINR)\nThe large barrel-shap ed\, shashlyk-type electromagnetic calorimeter (ECal) is an important part of the Multi-Purpose Detector (MPD) of the heavy-ion NICA experiment\, an d is designed to provide spatial and energy measurements for photons and e lectrons in the energy range from 40 MeV to 2-3 GeV. To deal with the high multiplicity\, the ECal is finely segmented and made up of 38\,400 cells ('towers') which are grouped into modules of 16 'towers' each. ECal projec tive geometry of the 'towers' oriented towards the beam interaction zone r esults in 8 different types of modules depending on their position in the ECal. As beam calibration of each individual 'tower' is time and resource expensive\, we discuss our strategy of calibration for the ECal modules wi th cosmic muons and present some preliminary results.\n\nhttps://indico.pa rticle.mephi.ru/event/35/contributions/2294/ LOCATION:Zoom Facilities URL:https://indico.particle.mephi.ru/event/35/contributions/2294/ END:VEVENT END:VCALENDAR