Персона: Кирсанов, Михаил Алексеевич
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Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
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Кирсанов
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Михаил Алексеевич
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- ПубликацияТолько метаданныеREGISTRATION OF THE YIELD OF d + d NUCLEAR REACTION PRODUCTS FROM A POLYCRYSTALLINE DIAMOND TARGET AT THE ION ACCELERATOR HELIS(2022) Negodaev, M. A.; Movchun, S. A.; Popovich, A. F.; Rusetskii, A. S.; Kirsanov, M. A.; Кирсанов, Михаил Алексеевич© 2022, Allerton Press, Inc.Abstract: The experimental data on the yield of d + d-reaction products for polycrystalline diamond target, obtained in the studies at the HELIS ion accelerator are presented. The equipment and neutron and charged particle detectors used in the study are described. The possibility of using the Unique Scientific Facility (USF) HELIS to verify operating characteristics of semiconductor detectors of alpha particles intended in studies of the boron–proton capture reaction at the Prometheus proton therapy complex is shown.
- ПубликацияТолько метаданныеInvestigation of Neutron Generation upon Irradiation of Deuterated Crystalline Structures with an Electron Beam(2021) Dalkarov, O. D.; Negodaev, M. A.; Rusetskii, A. S.; Kubankin, A. S.; Kirsanov, M. A.; Кирсанов, Михаил Алексеевич© 2021, Pleiades Publishing, Ltd.Abstract: The possibility of neutron generation by irradiating deuterated crystalline structures with an electron beam with an energy of 20–40 keV was studied. As targets, the deuterated crystalline structures of palladium and textured CVD diamond were used. Measurements of neutron emission are presented, which were carried out by three independent methods—scintillation detectors, counters based on He-3, and track detectors CR-39.The average neutron flux during irradiation was estimated as 1–10s-1 in 4π sr.
- ПубликацияТолько метаданныеPrinciples of Chemical Designing of Styrene-Based Plastic Scintillators Doped with Quantum Dots(2024) Knysh, A.; Kirsanov, M.; Sosnovtsev, V.; Nabiev, I.; Samokhvalov, P.; Кныш, Александр Александрович; Кирсанов, Михаил Алексеевич; Сосновцев, Валерий Витальевич; Набиев, Игорь Руфаилович; Самохвалов, Павел Сергеевич
- ПубликацияТолько метаданныеInvestigation of the interaction of the ion beams with deuterated crystal structures at the HELIS facility(2020) Dalkarov, O. D.; Negodaev, M. A.; Rusetskii, A. S.; Oginov, A. V.; Kirsanov, M. A.; Кирсанов, Михаил АлексеевичThe paper reviews results obtained in the course of low energy nuclear reactions experimental study using the HELIS facility (LPI). The analysis of DD-reaction yields in deuterated crystalline structures at deuteron energies of 10-25 keV has shown a significant amplification effect. It was found that the exposure of deuterated targets both to 10-25 keV H+ and Ne+ ion beams and 20-30 keV X-ray radiation beams results in stimulation of DD-reaction yield. For CVD diamond and PdD x targets, it was shown that the magnitude of the neutron yield is affected by the orientation of the sample with respect to the deuteron beam. The possible explanation of the said effect may be attributed to the channeling of deuterium ions and neutron (DD reaction products) in textured targets. It was found that the heat release is much higher when D+ ion beams act upon the TiD x target than in case with H+ and Ne+ beams. The heat release depends upon the deuterium concentration in the target and the deuteron beam current density. "Additional peaks" were observed in the X-ray fluorescence spectra, but those are not related to any element and are seemingly associated with diffraction processes in deuterated palladium and CVD diamond.
- ПубликацияТолько метаданныеPassage of Fast Neutrons Through the Crystal Structure of Textured CVD Diamond(2020) Dalkarov, O. D.; Glushkov, N. A.; Negodaev, M. A.; Rusetsky, A. S.; Kirsanov, M. A.; Кирсанов, Михаил Алексеевич© 2020, Pleiades Publishing, Ltd.Abstract: The passage of fast neutrons through the crystal structure of a textured diamond obtained by chemical vapor deposition (CVD diamond) is studied. Neutrons with an energy of 2.45 MeV from the DD reaction and with an average energy of about 2 MeV from the 252Cf isotope are used as neutron sources. The neutrons are detected by two independent methods: using proportional counters filled with 3Не and a paraterphenyl-based scintillation detector. The measurements show that the neutron-flux incident on the detector depends on the orientation of the target. In the case of isotropic samples containing diamond and carbon, such effects are not observed. A possible explanation for the effect is the channeling of deuterium ions and neutrons in channels of textured CVD diamond.
- ПубликацияОткрытый доступIdentification of neutrons and gamma rays using a combination of three algorithms for separating signals of the scintillation detector(2020) Chepurnov, A. S.; Kirsanov, M. A.; Klimanov, S. G.; Кирсанов, Михаил Алексеевич; Климанов, Сергей Геннадиевич© Published under licence by IOP Publishing Ltd.Scintillation detectors with organic scintillators are widely used for fast neutrons detection in high gamma ray background. The peculiarity of this type of detector is that the pulse shape depends on the type of the detected particle. Traditionally, the Pulse Shape Discrimination (PSD) histogram is used to determine the number of detected neutrons. The PSD parameter is calculated from the shape of the detector pulse and assigned to each pulse. A typical PSD histogram contains two peaks corresponding to neutrons and gamma rays that overlap in the region between the peaks. With this approach, it is impossible to identify each individual signal in the area between the peaks. Therefore, it is not possible to calculate the overall signal identification coefficient. We have proposed a new method for the identification of neutrons and gamma quanta, which includes a combination of three signal separation algorithms: The traditional histogram PSD, the dependence of the area of signals on their amplitude, Tau histogram (tau means the fall constant of the detector pulses). This combination of three algorithms makes it possible to calculate the value of the signal identification coefficient. To test a new method for identifying neutrons and gamma quanta, we used a Pu-Be neutron source, a scintillation detector with a p-Terphenyl crystal and a CAEN DT5730 Digitizer (14 bit, 500 MHz). When a scintillation detector registered neutron from a Pu-Be source, the signal identification coefficient was 91.6%. A new method for identifying signals from a scintillation detector is used to register neutrons at the light ion accelerator.
- ПубликацияОткрытый доступSeparation of signals from neutrons and gamma quanta by the method of normalized signals(2020) Chepurnov, A. S.; Kubankin, A. S.; Kirsanov, M. A.; Klimanov, S. G.; Nazarov, I. V.; Кирсанов, Михаил Алексеевич; Климанов, Сергей Геннадиевич© Published under licence by IOP Publishing Ltd.The solution of the problem how to register fast neutrons in the presence of intense gamma radiation is required when solving such fundamental and applied problems as registration of the neutron and gamma background in underground low-background experiments (the low background detectors of the neutrino and dark matter); beam diagnostic at particle accelerators; radiation monitoring at nuclear facilities, nuclear medicine; environmental monitoring. To separate signals from neutrons and gamma quanta, scintillation detectors with organic scintillators are used. The best scintillators are organic crystals of stilbene and p-Terphenyl. The efficiency of separating signals from neutrons and gamma quanta can be increased using various methods of digital signal processing of the pulse shapes of the registered signals. A parameter traditionally called the Figure of Merit (FOM) is used to compare these methods. The experimental setup consisted of a Pu-Be neutron source, a scintillation detector with organic crystal p-Terphenyl, a Hamamatsu R6094 photomultiplier, a CAEN DT5730 Digitizer (500 MHz, 14bit), which store the shape of each pulse for the following digital processing. A new "method of normalized signals"was developed. Three variants of the new method of normalized signals are described, which give the following FOM values: 1.6, 1.7, and 2.1. The traditional method of signals separation on the same array of experimental data showed the efficiency FOM = 1.6. The new method of signal separation is used to register fast neutrons in the installation dedicated for the development of a compact neutron generator, which is necessary for the calibration of low-background detectors of neutrinos and dark matter particles.