BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Use of Pattern Recognition Methods in Track Analysis of Solid Dete ctors DTSTART;VALUE=DATE-TIME:20161013T113000Z DTEND;VALUE=DATE-TIME:20161013T114500Z DTSTAMP;VALUE=DATE-TIME:20260814T154359Z UID:indico-contribution-82-770@cern.ch DESCRIPTION:Speakers: Nikolai Starkov (Lebedev Physical Institute)\nThis r eport is based on the results of use the PAVICOM facility in investigation s of nuclear and elementary particles tracks. This facility has been const ructed in Lebedev Physical Institute and includes three automatic microsco pes. They allow to analyse particles tracks in different kinds of material : nuclear photo emulsion\, plastic and minerals (olivine). As a result the images of tracks and their geometrical characteristics very differ in var ious experiments. This circumstance demands use of various image recogniti on methods depending on properties of images and aims of experiment. Durin g work in different experiments the PAVICOM group designed numerous algori thms of processing particles tracks in complicated events. In this report some of them are represented.\n\nhttps://indico.particle.mephi.ru/event/4/ contributions/770/ LOCATION:Milan Hotel Rossini URL:https://indico.particle.mephi.ru/event/4/contributions/770/ END:VEVENT BEGIN:VEVENT SUMMARY:Background rejection methods for tens of TeV gamma-ray astronomy a pplicable to wide angle timing arrays DTSTART;VALUE=DATE-TIME:20161013T114500Z DTEND;VALUE=DATE-TIME:20161013T120000Z DTSTAMP;VALUE=DATE-TIME:20260814T154359Z UID:indico-contribution-82-757@cern.ch DESCRIPTION:Speakers: abeer El shoukrofy (SINP MSU- Damanhour university)\ nA 'knee-like' approximation of Cherenkov light Lateral Distribution Funct ions\, which we developed earlier\, now is used for the actual tasks of ba ckground rejection methods for high energy (Tens and hundreds of TeV) gamm a-ray astronomy. We use our methods basically for HiSCORE wide angle timin g array consisting of Cherenkov light detectors with spacing 100 m covered 0.2 km2 presently and up to 5 km2 in future. However\, it can be applied for other similar arrays. It is shown that application of multivariable ap proach (where 4 parameters of knee-like approximation are used) allows to reach a large factor of background rejection but it strongly depends on nu mber of hit detectors.\n\nhttps://indico.particle.mephi.ru/event/4/contrib utions/757/ LOCATION:Milan Hotel Rossini URL:https://indico.particle.mephi.ru/event/4/contributions/757/ END:VEVENT BEGIN:VEVENT SUMMARY:TWO-DIMENTIONAL HYBRID SOLID STATE GAS DETECTOR BASED ON 10B LAYER FOR THERMAL AND COLD NEUTRONS DTSTART;VALUE=DATE-TIME:20161013T120000Z DTEND;VALUE=DATE-TIME:20161013T121500Z DTSTAMP;VALUE=DATE-TIME:20260814T154359Z UID:indico-contribution-82-752@cern.ch DESCRIPTION:Speakers: Stanislav Potashev (Institute for Nuclear Research o f the Russian Academy of Sciences)\nPotashev S.\, Burmistrov Yu.\, Drachev A.\, Karaevsky S.\, Konobeevski E.\, Zuyev S.\nInstitute for Nuclear Rese arch\, Russian Academy of Sciences\, 117312\, Moscow\, Russia \nE-mail: po tashev@inr.ru\n\nTwo-dimensional hybrid solid state gas multiwire detector of thermal and cold neutrons [1] is created at the Institute for Nuclear Research. The detector has an active area of 128 x 128 mm2 with double gas gap of 2 mm and a 10B converter. The input window is made of a thin alumi num layer (3mm) to prevent scattering and absorption of neutrons. The oper ation of the detector was studied using W-Be photoneutron source. The phot oneutron source (IN-LUE) was created on the base of industrial electron li nac LUE-8 operating at electron energy of 7 - 8 MeV\, tungsten electron-ga mma convertor\, photoneutron beryllium target and moderator of fast neutro ns. The detector is located at a distance of 6 m from the source at an ang le of 60 relative to the electron beam axis. The detector efficiency is es timated as ~3% at neutron wavelength λ = 1.82 Å and 6% at λ = 8 Å. The efficiency of the background detection was less than 0.001% of that for t hermal neutrons. The resulting pulse height resolution is 15% and the spat ial resolution is 2.5 mm for the X coordinate with gas mixture Ar + 25% CO 2 + 0.3% CF3Br under standard conditions. The resistive charge-division re adout is applied to determine neutron position from pulse height values.\n \n 1. Litvin V.S.\, Potashev S.I.\, Razin V.I. and Sadykov R.A. Bull. R uss. Acad. Sci. 75\, 229 (2011).\n\nhttps://indico.particle.mephi.ru/event /4/contributions/752/ LOCATION:Milan Hotel Rossini URL:https://indico.particle.mephi.ru/event/4/contributions/752/ END:VEVENT BEGIN:VEVENT SUMMARY:Detector of the reactor AntiNeutrino based on Solid-state plastic Scintillator (DANSS). Status and first results. DTSTART;VALUE=DATE-TIME:20161013T101500Z DTEND;VALUE=DATE-TIME:20161013T103000Z DTSTAMP;VALUE=DATE-TIME:20260814T154359Z UID:indico-contribution-82-707@cern.ch DESCRIPTION:Speakers: Igor Alekseev (ITEP)\nA detector of the reactor anti neutrino based on a cubic meter of plastic scintillator is installed below 3.1 GW industrial reactor. The detector is placed on a movable platform w hich allows to change the distance from the reactor core center in the ran ge 10.7-12.7 m. 2500 scintillator strips are readout individually by SiPMs and in groups of 50 by PMTs. In addition to the overburden by the reactor (~50 m w.e.) the detector has multilayer passive shielding and active muo n-veto.\n\nInverse beta-decay count rate of about 5000 events per day in t he fiducial volume (78% of the detector) with bout 5% of cosmic background has been reached. DANSS is sensitive to sterile neutrino in the most inte resting region of mixing parameter space.\n\nThe talk will cover the detec tor status and performance\, as well as the first results.\n\nhttps://indi co.particle.mephi.ru/event/4/contributions/707/ LOCATION:Milan Hotel Rossini URL:https://indico.particle.mephi.ru/event/4/contributions/707/ END:VEVENT BEGIN:VEVENT SUMMARY:Polarized proton and antiproton beams for the SPASCHARM experiment at U-70 accelerator DTSTART;VALUE=DATE-TIME:20161013T110000Z DTEND;VALUE=DATE-TIME:20161013T111500Z DTSTAMP;VALUE=DATE-TIME:20260814T154359Z UID:indico-contribution-82-595@cern.ch DESCRIPTION:Speakers: Vladimir Rykov (National Research Nuclear University MEPhI)\nThe design\, layout and parameters of the polarized-beam facility at U-70 proton synchrotron of IHEP\, Protvino\, are presented. The polari zed proton and antiproton beam line 24A is currently under development at IHEP. It will serve as a main playground for carrying out the rich program of the SPASCHARM experiment for comprehensive studies of spin phenomena i n a wide variety of hadronic reactions in the beam energy range of ~10-45 GeV.\n\nhttps://indico.particle.mephi.ru/event/4/contributions/595/ LOCATION:Milan Hotel Rossini URL:https://indico.particle.mephi.ru/event/4/contributions/595/ END:VEVENT BEGIN:VEVENT SUMMARY:Tagging system for the polarized beams at U-70 accelerator DTSTART;VALUE=DATE-TIME:20161013T111500Z DTEND;VALUE=DATE-TIME:20161013T113000Z DTSTAMP;VALUE=DATE-TIME:20260814T154359Z UID:indico-contribution-82-564@cern.ch DESCRIPTION:Speakers: Pavel Semenov (IHEP\, MEPhI)\nA beam line of polari zed protons and antiprotons\, obtained from decays of Λ (anti-Λ)-hyperon s for SPASCHARM experiment at U-70 accelerator is under development at IHE P\, Protvino. For precise asymmetry measurements one needs to know beam p olarization with a relatively low error. Tagging of the beam particle prov ides a possibility to perform measurements for both polarizations of the b eam at the same time to reduce systematic errors and increase statics.\nBe am tagging station will measure both polarization and beam particle moment a on-line. The correlation between the position of the proton (antiproton) with respect to the channel axis and the value of its polarization is use d to measure the relative polarization. The system of detectors with good spatial resolution designed for those measurements as an integral part of the beam line of polarized particles is discussed in the report\n\nhttps: //indico.particle.mephi.ru/event/4/contributions/564/ LOCATION:Milan Hotel Rossini URL:https://indico.particle.mephi.ru/event/4/contributions/564/ END:VEVENT BEGIN:VEVENT SUMMARY:Universal Main Magnetic Focus Ion Source: A New Tool for Laborator y Research of Astrophysics and Tokamak Microplasma DTSTART;VALUE=DATE-TIME:20161013T104500Z DTEND;VALUE=DATE-TIME:20161013T110000Z DTSTAMP;VALUE=DATE-TIME:20260814T154359Z UID:indico-contribution-82-480@cern.ch DESCRIPTION:Speakers: VLADIMIR OVSYANNIKOV (Dresden MaMFIS Group)\nA novel room-temperature ion source for the production of ions with charges from $2^{+}$ up to $80^+$ in electron beam within wide ranges of electron ener gy $E_e$ (500 eV $\\leq E_e \\leq 60$ keV) and current density $j_e$ ($10$ A/cm$^2 \\leq j_e \\leq 20$ kA/cm$^2$) is developed. Due to combination o f two methods of sequential ionization of atoms\, the device can operate b oth as conventional Electron Beam Ion Source/Trap (EBIS/T) and novel Main Magnetic Focus Ion Source (MaMFIS). In EBIS/T\, ions confined in the poten tial well are stored in the smooth electron beam going through a few drift tubes with positive potentials applied at the edge sections. In MaMFIS\, the local ion traps with extremely high electron current density are forme d in crossovers of the rippled electron beam in a thick magnetic lens [1\, 2]. The device is suitable for generation of both the low- and high-densi ty microplasma in steady state\, which can be employed for investigation o f a wide range of physical problems in an ordinary university laboratory\, in particular\, for astrophysics and Tokamak microplasma simulation. For the electron beam characterized by the incident energy $E_e = 10$ keV\, th e current density $j_e \\sim 20$ kA/cm$^2$ and the number density $n_e \\s im 2 \\cdot 10^{13}$ cm$^{-3}$ were achieved experimentally [1-3]. For $E_ e \\sim 60$ keV\, the value of electron number density $n_e \\sim 10^{14}$ cm$^{-3}$ is feasible. The efficiency of MaMFIS for laboratory astrophysi cs significantly exceeds that of the existing warm EBIT at the National As tronomical Observatory of China and superconducting EBITs at the Lawrence Livermore National Laboratory and the Harvard-Smithsonian Center for Astro physics.\n\n\nReferences\n\n[1] V. P. Ovsyannikov and A. V. Nefiodov\, Nuc l. Inst. Meth. B **367**\, 1 (2016). \n\n[2] V. P. Ovsyannikov and A. V. N efiodov\, Nucl. Inst. Meth. B **370**\, 32 (2016).\n\n[3] A. Borovik\, Jr \, J. Dreiling\, R. Silwal\, E. Takács\, J. Gillaspy\, R. Lomsadze\, \nV. Ovsyannikov\, K. Huber\, S. Schippers\, A. Müller\, and Yu. Ralchenko\, \n18th Int. Conf. on the Physics of Highly Charged Ions\, 2016\, Kielce\, Poland\, \nBook of Abstracts\, p. 44.\n\nhttps://indico.particle.mephi.ru /event/4/contributions/480/ LOCATION:Milan Hotel Rossini URL:https://indico.particle.mephi.ru/event/4/contributions/480/ END:VEVENT BEGIN:VEVENT SUMMARY:Silicon-Gas Pixel Detector DTSTART;VALUE=DATE-TIME:20161013T103000Z DTEND;VALUE=DATE-TIME:20161013T104500Z DTSTAMP;VALUE=DATE-TIME:20260814T154359Z UID:indico-contribution-82-479@cern.ch DESCRIPTION:Speakers: GEORGY BASHINDZHAGYAN (Lomonosov Moscow State Univer sity)\nThe proposed device combines the advantages of Silicon and Gas-pixe l detectors.\n7 micron space resolution and down to 0.2 degree both angles measurements\n are inside 10 mm thick and very low material detector.\nBi nary readout\, advanced data collection and preliminary analysis logic all ow to obtain \nall the information in less than 1 microsecond and to use i t for the fast trigger generation.\n\nhttps://indico.particle.mephi.ru/eve nt/4/contributions/479/ LOCATION:Milan Hotel Rossini URL:https://indico.particle.mephi.ru/event/4/contributions/479/ END:VEVENT END:VCALENDAR