Mr.
Vladislav Vishnyakov
(Sergeevich)
07/10/2015, 14:30
Nuclear physics and particle physics
Anisotropic flow measurements for identified and unidentified charged hadrons are currently being measured at both the Relativistic Heavy Ion Collider (RHIC) and the Large
Hadron Collider (LHC), to aid investigations of the temperature (T) dependence of the equation of transport properties of the hot and dense plasma produced in energetic heavy ion collisions. In this work I review the...
Mr.
Alexander Novikov
(NRNU MEPhI)
07/10/2015, 14:30
Methods of experimental physics
Gamma-ray spectrometric equipment for environmental radiation monitoring by unmanned aerial vehicle (UAV) is described. The results of equipment testing are presented.
Mr.
Alexander Novikov
(NRNU MEPhI)
,
Mr.
Alexander Shustov
(NRNU MEPhI)
,
Dr.
Irina Chernysheva
(NRNU MEPhI)
07/10/2015, 14:30
Methods of experimental physics
Software for identification of radionuclides using energy spectra of xenon gamma-ray spectrometer was developed. Software includes the gamma-ray library and allows to perform the qualitative and quantitative isotopes analysis of gamma-ray spectra.
Dr.
Valentina Dmitrieva
(NRNU MEPhI)
07/10/2015, 14:30
Methods of experimental physics
A general concept of a new interdisciplinary glossary, which includes particle accelerator terminology used in medicine, as well as relevant medical concepts, is presented. Its structure and usage rules are described. An example, illustrating the quickly searching technique of relevant information of this Glossary in considered. A website addresses, where one can get an access to the Glossary,...
Mr.
IURY GNEZDILOV
(IURIEVICH)
07/10/2015, 14:30
Methods of experimental physics
Modular neutron detector on the basis of composite scintillators which may be used in creation of radiation monitors with a large sensitive surface was suggested. Composite scintillators are composed of dielectric gel as a basis where granules of scintillating substance, for example, gadolinium granules containing scintillators, are introduced. Thermal neutron converter, which contains 6Li or...
Dr.
Sergey Aleksandrin
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
07/10/2015, 14:30
Methods of experimental physics
The possibility of using the plastic scintillators for detection nuclei with high ionizing density was studied in this report. The scintillators could have different characteristics such as attenuation length, light yield efficiency. It is also important to take into account the influence of the quenching effect on the detection of heavy nuclei. It was analyzed the method of calibration...
Dr.
Arkadiy Taranenko
(MEPhI)
07/10/2015, 14:30
Nuclear physics and particle physics
The anisotropic flow coefficients $v_n$ can provide constraints crucial
for
precision extraction of the specific shear viscosity eta/s, of the
plasma
(QGP) produced in heavy-ion collisions at RHIC. A significant recent
attention
has been given to theoretical studies of $v_n$ (odd and even) and
the associated initial [fluctuating] eccentricities which drive $v_n$.
In...
Mr.
Vladimir Kadilin
(NRNU MEPHI)
07/10/2015, 14:30
Methods of experimental physics
The aim of work is development detectors for diagnostic of physical process for monitoring of radiation situation at nuclear reactors, including fast neutron reactors. Detectors for registration of radiation in gas and liquid media in wide measurement range and for identification of presence of particular isotopes- gamma sources are needed. The model of scintillator detectors using crystals...
Mr.
Vitaliy Florentsev
(NRNU MEPhI)
07/10/2015, 14:30
Methods of experimental physics
This article describes the dependencies of subsonic laminar Poiseuille’s flow in a pipe of circular cross, the equations of motion of quasi-stationary processes, that are taking place when the pressure in the gas volume flows, dependencies of change of pressure in the volume of the gas flow temperature changes. This task will be interesting for design engineers that are involved in the...
Mr.
IURY GNEZDILOV
(IURIEVICH)
07/10/2015, 14:30
Methods of experimental physics
A new neutron detector for GAMMA-400 space observatory for e/h showers separation was suggested. The detector is composed of plastic scintillation blocks wrapped by cadmium foil, and moderator layers. Its characteristics obtained by simulation on GEANT4 with the characteristics of the boron-containing scintillation detector which was installed on the International Space Station (ISS-CREAM...
Mrs.
Elena Ryabeva
(NRNU MEPhI)
07/10/2015, 14:30
Methods of experimental physics
The development of model for neutron detectors for measurements of fast neuron fluxes. The construction of detectors is based on alternating layers of silicon as detector and boron (enriched with 10B) as neutron converter located in moderator. The efficiency of fast neutron registration of detectors with one layer of boron and silicon modeled by GEANT4 is very low (approximately 4%). The...
Mr.
IURY GNEZDILOV
(IURIEVICH)
07/10/2015, 14:30
Methods of experimental physics
The design of the neutron detector based on 3He-counters for use in GAMMA-400 space observatory for e/h showers separation was suggested. Its characteristics are obtained by simulation on GEANT4 with the characteristics of the neutron detector which was installed on PAMELA spectrometer were compared. Time allocation of neutrons absorption was obtained as a function of registration time for...
Mr.
Alexander Novikov
(NRNU MEPhI)
,
Mr.
Alexander Shustov
(NRNU MEPhI)
,
Dr.
Irina Chernysheva
(NRNU MEPhI)
07/10/2015, 14:30
Methods of experimental physics
Software for gamma-ray spectra analyzing was developed. Software has some services to
visualization of gamma-ray spectra, background spectrum and shadow spectrum, analyzing of gamma-picks by Gaussian distribution, calculation of energy resolution and other gamma-picks characteristics, subtraction of background spectrum, manipulation with shadow spectrum.
Mr.
Alexander Novikov
(NRNU MEPhI)
,
Mr.
Alexander Shustov
(NRNU MEPhI)
,
Dr.
Irina Chernysheva
(NRNU MEPhI)
07/10/2015, 14:30
Methods of experimental physics
Software for xenon gamma-ray spectrometers control was developed. Software supports the multi-windows interface. Software has the possibilities for acquisition of gamma-ray spectra from xenon gamma-ray detector via USB or RS-485 interfaces, directly or via TCP-IP protocol, energy calibration of gamma-ray spectra, saving of gamma-ray spectra on a disk.
Dr.
GEORGY BASHINDZHAGYAN
(Lomonosov Moscow State University)
07/10/2015, 14:30
Methods of experimental physics
The goal of the proposed experiment is to check the evidence for a possible solar influence on nuclear decay rates, and to measure any effect quantitatively. Simultaneous decay rate measurements with many identical radioactive sources would allow us to study any possible correlations between their rate changes, and thus to improve the accuracy and reliability of the measurements.
Positioning...
Mr.
Artyom Solodovnikov
(NRNU MEPhI)
07/10/2015, 14:30
Methods of experimental physics
The fast multilayered scintillation detector (MSD) of the new telescope-spectrometer for the space experiment ALFA-ELECTRON planned to work on the outer surface of the Russian Segment (RS) of the International Space Station (ISS) currently being in ground testing mode. This article describes and shows the basic scheme for determining the amplitude parameters of the detector using specially...
