LXX International conference "NUCLEUS – 2020. Nuclear physics and elementary particle physics. Nuclear physics technologies"

Session

Poster session 3 (part 2)

14 Oct 2020, 18:10

Online

388. Development of a facility for fast neutron spectrometry using a plastic scintillator EJ-276 with PSD capability

Mr Ilia Urupa (Viktorovich)

14/10/2020, 18:10

Section 3. Modern nuclear physics methods and technologies.

Poster report

The paper presents the development stage of an installation for fast neutron spectrometry using an EJ-276 plastic organic scintillator including the results and processing of measurements of mixed gamma-neutron spectra of an ING-07T pulsed neutron generator, calibration of the spectrometer, and unfolding of neutron spectra. Separation of signals from gamma and neutron radiation was carried out...

368. Development of the neutrino control method for nuclear reactors within the iDREAM project.

Aldiyar Oralbaev (NRC "Kurchatov institute")

14/10/2020, 18:10

Section 3. Modern nuclear physics methods and technologies.

Poster report

The aim of the iDream project is a development of an industrial detector of the reactor antineutrinos for the reactor active zone monitoring. There is a description of the control methodology, a prototype design and a status of the project up to date.

74. LITHIUM-LOADED PLASTIC SCINTILLATORS FOR THERMAL NEUTRON DETECTION

Dr Igor Nemchenok (JINR, Dubna State University)

14/10/2020, 18:10

Section 3. Modern nuclear physics methods and technologies.

Poster report

LITHIUM-LOADED PLASTIC SCINTILLATORS FOR THERMAL NEUTRON DETECTION

Nemchenok I.B.1, 2, Kamnev I.I. 1, Shevchik E.A.1, Suslov I.A.1, 2
1Joint Institute for Nuclear Research, Dubna, Russia;
2Dubna State University, Dubna, Russia.
nemch@jinr.ru

This work presents the results of the optimization of the composition of lithium-loaded plastic scintillators (Li-PS) based on a copolymer of styrene...

315. Measurement of the time dependence of the background of delayed neutrons on the 1-st channel of IBR-2.

Dr Evgenia Kuznetsova (JINR, INR)

14/10/2020, 18:10

Section 7. Synchrotron and neutron studies and infrastructure for their implementation.

Poster report

Abstract. A new time-of-flight method for measuring the neutron lifetime $\tau_{\mathrm{n}}$ was proposed in [1] The time-of-flight method for measuring the neutron lifetime $\tau_{\mathrm{n}}$ is very sensitive to the background. It was found that the background should be less than $10^{-6}$. According to [2] , between the power pulses of the IBR-2 reactor, about $7 \%$ of the reactor power...

316. Measurement of the time-of-flight spectra of the neutrons by the integrated method on pulsed neutron sources.

Dr Valery Kuznetsov (JINR, INR)

14/10/2020, 18:10

Section 7. Synchrotron and neutron studies and infrastructure for their implementation.

Poster report

An increase in the intensity of pulsed neutron sources leads to an unprecedentedly large pulsed neutron flux density up to $10^{11} \mathrm{n} / \mathrm{s} / \mathrm{cm}^{2}$ and, as a result, to the impossibility of using data acquisition systems operating in counting mode. On the other hand, in the study of small P-odd effects in stationary reactors, the integral method is often used. This...

354. New "dry" plasma technology for nuclear materials processing

Dr Anna Petrovskaya (Plasma application department, Intro-Micro LLC, St.Petersburg, Russia), Mr Sergey Surov (“Science and Innovations” JSC, ROSATOM, Moscow, Russia)

14/10/2020, 18:10

Section 3. Modern nuclear physics methods and technologies.

Poster report

New approach to solve a wide range of problems in various nuclear materials processing is discussed. One of them – irradiated reactor graphite decontamination with inert gas (argon) plasma sputtering and thermo-treatment with interdisciplinary synthesis of plasma physics, materials science and reactor physics. At present time wide search of effective technology to deactivate reactor graphite...

313. Optimization of digital signal processing algorithms for neutron detector based on Cs26LiYCl6:Ce scintillator.

Timofey Bobrovskiy (IPPE)

14/10/2020, 18:10

Section 3. Modern nuclear physics methods and technologies.

Poster report

One of the promising type of scintillation detector for neutron registration and spectroscopy is Cs26LiYCl6:Ce. The work presents study of characteristics of this detector. Optimization of digital algorithms for neutron/gamma-separation was performed. Pulse shape discrimination quality of charge integration and correlation analysis was investigated. Also tuning of pulse start time measuring...

221. THE YIELDS OF THE NUCLEI FORMED IN THE ${}^{237}$Np AND ${}^{241}$Am SAMPLES IRRADIATED BY THE NEUTRON FIELD.

Ms Фазилат Расулова (ОИЯИ)

14/10/2020, 18:10

Section 3. Modern nuclear physics methods and technologies.

Poster report

Tyutyunnikov S.I. $^{1},$ Yuldashev B.S.$^{1},$ Kryachko I.A.${ }^{1},$ Rasulova F.A. $^{1},$ Stegailov $\mathrm{V}. \mathrm{I.}^{1},$ Tran $\mathrm{T.N.}^{1,2}$, Perevoshikov L.L., Guseva S.V. $^{1},$ Balandin A.S.
$^1$ - Joint Institute for Nuclear Research, Joliot-Curie 6, Dubna, Moscow region, Russia, 141980
$^2$ - Institute of Physics, Vietnam Academy of Science and Technology, Hanoi,...

410. Using of burnable poison in the PIK reactor.

Nadezhda Zikhareva (Petersburg Nuclear Physics Institute named by B.P.Konstantinov )

14/10/2020, 18:10

Section 3. Modern nuclear physics methods and technologies.

Poster report

In the work is investigated the effect of a burnable poison on the rate of reactivity drop in the PIK reactor. The core consists of six 6-sided fuel assemblies in the inner perimeter, six 4-sided fuel assemblies and six 6-sided fuel assemblies in the outer perimeter. The hexagonal fuel assembly contains 241 fuel elements, and the tetrahedral fuel assembly - 161. The fuel elements of the PIK...