Pub Date : 2024-04-09DOI: 10.1134/s154747712402002x
M. R. Alizada, A. I. Ahmadov, A. B. Arbuzov
Abstract—
Dependence of the differential cross section of the production of prompt photons with sub-processes of mixed chromo-electrodynamic ({qg to qgamma }) and pure electrodynamic ({qgamma to qgamma }) Compton scattering on the total energy of colliding protons ({sqrt s }), the transverse momentum pT of photons, the cosine of the scattering angle cos(θ), and the rapidity of photons y is studied. It has been shown that the purely electrodynamic sub-process can contribute up to the order of ten percent of the total cross-section of the production of prompt photons at NICA energies and, consequently, should be taken into account in simulating and analyzing experimental data.
Abstract-Dependence of the differential cross section of the production of prompt photons with sub-processes of mixed chromo-electrodynamic ({qg to qgamma }) and pure electrodynamic ({qgamma to qgamma }) Compton scattering on the total energy of colliding protons ({sqrt s })、光子的横向动量 pT、散射角 cos(θ) 的余弦和光子的速度 y 的关系进行了研究。结果表明，纯电动子过程在 NICA 能量下产生瞬发光子的总截面中的贡献可达百分之十左右，因此在模拟和分析实验数据时应将其考虑在内。
{"title":"Prompt Photon Production in Sub-Processes $${qg to qgamma }$$ and $${qgamma to qgamma }$$ of Compton Scattering in Proton–Proton Collision at NICA Energies","authors":"M. R. Alizada, A. I. Ahmadov, A. B. Arbuzov","doi":"10.1134/s154747712402002x","DOIUrl":"https://doi.org/10.1134/s154747712402002x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">\u0000<b>Abstract</b>—</h3><p>Dependence of the differential cross section of the production of prompt photons with sub-processes of mixed chromo-electrodynamic <span>({qg to qgamma })</span> and pure electrodynamic <span>({qgamma to qgamma })</span> Compton scattering on the total energy of colliding protons <span>({sqrt s })</span>, the transverse momentum <i>p</i><sub>T</sub> of photons, the cosine of the scattering angle cos(θ), and the rapidity of photons <i>y</i> is studied. It has been shown that the purely electrodynamic sub-process can contribute up to the order of ten percent of the total cross-section of the production of prompt photons at NICA energies and, consequently, should be taken into account in simulating and analyzing experimental data.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140566211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-09DOI: 10.1134/s1547477124020092
E. E. Perepelkin, A. E. Verkhoglyadov, I. V. Kushnir, M. V. Klimenko
Abstract—
The problem of finding the natural frequencies and eigenfunctions of the fuel element of a nuclear reactor is considered. A rod with a piecewise constant material density in the longitudinal direction is used as a model. The frequency equation is explicitly derived, and the natural frequencies of the first twelve harmonics are determined numerically and analytically. Analytical expressions for eigenfunctions are obtained, which are in good agreement with calculations made using the Galerkin method and numerical calculations in the ANSYS program. The results will be used to simulate the dynamics of the NEPTUN pulsed reactor for examining the stability of its operation.
{"title":"Natural Frequencies and Eigenfunctions of a Composite Rod","authors":"E. E. Perepelkin, A. E. Verkhoglyadov, I. V. Kushnir, M. V. Klimenko","doi":"10.1134/s1547477124020092","DOIUrl":"https://doi.org/10.1134/s1547477124020092","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">\u0000<b>Abstract</b>—</h3><p>The problem of finding the natural frequencies and eigenfunctions of the fuel element of a nuclear reactor is considered. A rod with a piecewise constant material density in the longitudinal direction is used as a model. The frequency equation is explicitly derived, and the natural frequencies of the first twelve harmonics are determined numerically and analytically. Analytical expressions for eigenfunctions are obtained, which are in good agreement with calculations made using the Galerkin method and numerical calculations in the ANSYS program. The results will be used to simulate the dynamics of the NEPTUN pulsed reactor for examining the stability of its operation.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140565860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-09DOI: 10.1134/s1547477124020122
A. P. Potylitsyn, A. V. Vukolov, M. V. Shevelev, A. A. Baldin, V. V. Bleko, V. V. Bleko, V. V. Kobets, P. V. Karataev, V. R. Kocharyan
Abstract
Beam characteristics of a terahertz/subterahertz radiation obtained by collimation of coherent diffraction radiation (DR) emitted by ultrarelativistic electrons are considered. To achieve the maximum intensity on the beam axis of such radiation, it is proposed to use a semi-parabolic target with a focal length equal to the distance between the target and the collimator aperture. It is shown that for the proposed geometry, the DR distribution on the aperture plane has a maximum along the beam axis, in contrast to the previously used coherent transition radiation mechanism, which is characterized by a “funnel-shaped” structure with a minimum along the beam axis.
摘要 研究了通过准直超相对论电子发射的相干衍射辐射（DR）获得的太赫兹/次太赫兹辐射的光束特性。为了使这种辐射在光束轴上达到最大强度，建议使用焦距等于目标与准直器孔径之间距离的半抛物线目标。研究表明，对于所提议的几何形状，孔径平面上的 DR 分布沿光束轴线具有最大值，这与之前使用的相干过渡辐射机制不同，后者的特点是具有沿光束轴线最小值的 "漏斗状 "结构。
{"title":"On the Effect of Focusing of Coherent Diffraction Radiation by a Semi-Parabolic Target","authors":"A. P. Potylitsyn, A. V. Vukolov, M. V. Shevelev, A. A. Baldin, V. V. Bleko, V. V. Bleko, V. V. Kobets, P. V. Karataev, V. R. Kocharyan","doi":"10.1134/s1547477124020122","DOIUrl":"https://doi.org/10.1134/s1547477124020122","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Beam characteristics of a terahertz/subterahertz radiation obtained by collimation of coherent diffraction radiation (DR) emitted by ultrarelativistic electrons are considered. To achieve the maximum intensity on the beam axis of such radiation, it is proposed to use a semi-parabolic target with a focal length equal to the distance between the target and the collimator aperture. It is shown that for the proposed geometry, the DR distribution on the aperture plane has a maximum along the beam axis, in contrast to the previously used coherent transition radiation mechanism, which is characterized by a “funnel-shaped” structure with a minimum along the beam axis.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140566196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-09DOI: 10.1134/s1547477124020110
A. P. Potylitsyn, A. A. Baldin, V. V. Bleko, A. V. Vukolov, G. A. Naumenko, P. V. Karataev, V. V. Kobets, V. R. Kocharyan, A. S. Kubankin, M. M. Toktaganova, M. V. Shevelev, D. A. Shkitov, V. V. Bleko, D. S. Korovkin, I. A. Kishin, E. Yu. Kidanova
Abstract
Results of experimental and theoretical investigation of coherent transition radiation from a finite-size target in the prewave zone are presented. The measurements were conducted in sub-terahertz frequency range on the 100-MeV electron beam extracted from LINAC-200 (JINR). A formula for the spectral-angular density of coherent transition radiation is obtained. Results of the simulation of experimental conditions and experimental data are jointly analyzed. Estimation of the bunch length based on experimental data and obtained theoretical model deviates from the expected value.
{"title":"Characteristics of Coherent Transition Radiation in the Prewave Zone from a Finite-Size Target","authors":"A. P. Potylitsyn, A. A. Baldin, V. V. Bleko, A. V. Vukolov, G. A. Naumenko, P. V. Karataev, V. V. Kobets, V. R. Kocharyan, A. S. Kubankin, M. M. Toktaganova, M. V. Shevelev, D. A. Shkitov, V. V. Bleko, D. S. Korovkin, I. A. Kishin, E. Yu. Kidanova","doi":"10.1134/s1547477124020110","DOIUrl":"https://doi.org/10.1134/s1547477124020110","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Results of experimental and theoretical investigation of coherent transition radiation from a finite-size target in the prewave zone are presented. The measurements were conducted in sub-terahertz frequency range on the 100-MeV electron beam extracted from LINAC-200 (JINR). A formula for the spectral-angular density of coherent transition radiation is obtained. Results of the simulation of experimental conditions and experimental data are jointly analyzed. Estimation of the bunch length based on experimental data and obtained theoretical model deviates from the expected value.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140566118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-09DOI: 10.1134/s1547477124020043
V. A. Babkin, S. G. Buzin, A. S. Burdyko, M. G. Buryakov, V. M. Golovatyuk, A. Daribaeva, A. V. Dmitriev, B. V. Dubinchik, P. O. Dulov, A. A. Zaitsev, R. Yu. Kolesnikov, A. I. Malakhov, M. M. Rumyantsev
Abstract—
A new time-of-flight (ToF) system of the NA61/SHINE hadron spectrometer at the extracted beam of the Super Hadron Synchrotron in CERN has been developed in 2019–2022 by the staff of the Laboratory of High-Energy Physics of the Joint Institute for Nuclear Research. The new ToF system is based on Multigap Resistive Plate Chambers (MRPCs) technology. The previous system consisting of scintillation counters was substituted with the new ToF system. This paper presents the overview of the new NA61/SHINE ToF system.
{"title":"Time-of-Flight System for Particle Identification in the NA61/SHINE Experiment in CERN","authors":"V. A. Babkin, S. G. Buzin, A. S. Burdyko, M. G. Buryakov, V. M. Golovatyuk, A. Daribaeva, A. V. Dmitriev, B. V. Dubinchik, P. O. Dulov, A. A. Zaitsev, R. Yu. Kolesnikov, A. I. Malakhov, M. M. Rumyantsev","doi":"10.1134/s1547477124020043","DOIUrl":"https://doi.org/10.1134/s1547477124020043","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract—</h3><p>A new time-of-flight (ToF) system of the NA61/SHINE hadron spectrometer at the extracted beam of the Super Hadron Synchrotron in CERN has been developed in 2019–2022 by the staff of the Laboratory of High-Energy Physics of the Joint Institute for Nuclear Research. The new ToF system is based on Multigap Resistive Plate Chambers (MRPCs) technology. The previous system consisting of scintillation counters was substituted with the new ToF system. This paper presents the overview of the new NA61/SHINE ToF system.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140566102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-09DOI: 10.1134/s1547477124020134
E. A. Shevchik, D. R. Zinatulina, V. V. Belov, V. B. Brudanin, K. N. Gusev, Yu. B. Gurov, V. G. Egorov, S. V. Kazartsev, D. V. Medvedev, D. V. Ponomarev, I. E. Rozova, N. S. Rumyantseva, M. V. Fomina, M. V. Shirchenko
Abstract
A technique for producing, adjusting, and testing large-area scintillation detectors (≥1 m2) for active cosmic muon shielding in low-background experiments is presented. The detectors developed feature a high efficiency (~99.75%) and low light collection inhomogeneity (≤25%); they can be used to construct modular systems for active muon shielding with different coverage areas and the interchangeability of modules. The testing method applied makes it possible to significantly reduce the time of checking light collection inhomogeneity of scintillation panels
{"title":"Development of a Scintillation Muon Shield for Low-Background Experiments","authors":"E. A. Shevchik, D. R. Zinatulina, V. V. Belov, V. B. Brudanin, K. N. Gusev, Yu. B. Gurov, V. G. Egorov, S. V. Kazartsev, D. V. Medvedev, D. V. Ponomarev, I. E. Rozova, N. S. Rumyantseva, M. V. Fomina, M. V. Shirchenko","doi":"10.1134/s1547477124020134","DOIUrl":"https://doi.org/10.1134/s1547477124020134","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A technique for producing, adjusting, and testing large-area scintillation detectors (≥1 m<sup>2</sup>) for active cosmic muon shielding in low-background experiments is presented. The detectors developed feature a high efficiency (~99.75%) and low light collection inhomogeneity (≤25%); they can be used to construct modular systems for active muon shielding with different coverage areas and the interchangeability of modules. The testing method applied makes it possible to significantly reduce the time of checking light collection inhomogeneity of scintillation panels</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140566104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-09DOI: 10.1134/s1547477124020031
S. P. Avdeev, S. G. Buzin, M. G. Buryakov, V. M. Golovatyuk, A. G. Litvinenko, E. I. Litvinenko, A. I. Malakhov, G. D. Milnov, B. Otgongerel, M. Sovd
Abstract
Estimated counting rate in the collisions of heavy ions in the NICA/MPD are presented for collisions of main bunches (bunch-bunch scattering), satellite bunches (satellite-satellite scattering), and the collision of a main bunch with a satellite bunch (bunch-satellite scattering). The distribution of vertices in the MPD interaction area is presented. The main conclusion is that the contributions of satellite-satellite and satellite-bunch scattering do not exceed two percent of the bunch-bunch scattering.
{"title":"Counting Rates in Collisions of Main and Satellite Bunches at NICA","authors":"S. P. Avdeev, S. G. Buzin, M. G. Buryakov, V. M. Golovatyuk, A. G. Litvinenko, E. I. Litvinenko, A. I. Malakhov, G. D. Milnov, B. Otgongerel, M. Sovd","doi":"10.1134/s1547477124020031","DOIUrl":"https://doi.org/10.1134/s1547477124020031","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Estimated counting rate in the collisions of heavy ions in the NICA/MPD are presented for collisions of main bunches (bunch-bunch scattering), satellite bunches (satellite-satellite scattering), and the collision of a main bunch with a satellite bunch (bunch-satellite scattering). The distribution of vertices in the MPD interaction area is presented. The main conclusion is that the contributions of satellite-satellite and satellite-bunch scattering do not exceed two percent of the bunch-bunch scattering.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140566198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-09DOI: 10.1134/s1547477124020158
I. Zinicovscaia, A. Safonov, A. Kravtsova, O. Chaligava, E. Germonova
Abstract
Under conditions of intense anthropogenic impact, the territory of modern Donbass is geochemically contrasting environment. Concentrations of rare earth elements (Sc, La, Ce, Nd, Sm, Eu, Tb, Dy, Yb) in the natural ecosystems of the Northern Azov region (Central Donbass) were determined by indicator plants using neutron activation analysis. An open landscape experiment was carried out using moss Ceratodon purpureus (Hedw.) Brid. which has a high information response in the assessment of technogenic impacts. It allowed to establish the levels of regional contamination with rare earth elements, to identify correlation groups of related processes in the structural and functional features of indicator. The identified localities of geochemical heterogeneities in ecotopes are responsible for the adaptation of plants under stressful conditions. The most informative structural units of plants indicating the contamination with rare earth elements are abnormalities in the structure (terates, teratomorphs), violation of the morphogenesis processes of the embryonic apparatus of plants and areas of vegetative organs. Correlation analysis and principle component analysis were applied to reveal the relationship between the elements and abnormalities in the structure of plants. Relative accumulation factor, contamination factor and enrichment factor were calculated to evaluate the level of environment pollution and to identify the origin of elements.
{"title":"Neutron Activation Analysis of Rare Earth Elements (Sc, La, Ce, Nd, Sm, Eu, Tb, Dy, Yb) in the Diagnosis of Ecosystems of Donbass","authors":"I. Zinicovscaia, A. Safonov, A. Kravtsova, O. Chaligava, E. Germonova","doi":"10.1134/s1547477124020158","DOIUrl":"https://doi.org/10.1134/s1547477124020158","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Under conditions of intense anthropogenic impact, the territory of modern Donbass is geochemically contrasting environment. Concentrations of rare earth elements (Sc, La, Ce, Nd, Sm, Eu, Tb, Dy, Yb) in the natural ecosystems of the Northern Azov region (Central Donbass) were determined by indicator plants using neutron activation analysis. An open landscape experiment was carried out using moss <i>Ceratodon purpureus</i> (Hedw.) Brid. which has a high information response in the assessment of technogenic impacts. It allowed to establish the levels of regional contamination with rare earth elements, to identify correlation groups of related processes in the structural and functional features of indicator. The identified localities of geochemical heterogeneities in ecotopes are responsible for the adaptation of plants under stressful conditions. The most informative structural units of plants indicating the contamination with rare earth elements are abnormalities in the structure (terates, teratomorphs), violation of the morphogenesis processes of the embryonic apparatus of plants and areas of vegetative organs. Correlation analysis and principle component analysis were applied to reveal the relationship between the elements and abnormalities in the structure of plants. Relative accumulation factor, contamination factor and enrichment factor were calculated to evaluate the level of environment pollution and to identify the origin of elements.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140565863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-09DOI: 10.1134/s1547477124020055
A. M. Batrakov, M. I. Bryzgunov, A. D. Goncharov, I. A. Gusev, A. A. Zharikov, V. V. Parkhomchuk, V. B. Reva, D. V. Senkov
Abstract
This paper describes the high-voltage power supply for the booster injector еlectron cooling system of the NICA collider. The ripple suppression module provides low voltage ripple and makes it possible to obtain Xe ion cooling times of less than 0.1 s.
摘要 本文介绍了用于 NICA 对撞机增压器注入器电子冷却系统的高压电源。纹波抑制模块可提供较低的电压纹波，使 Xe 离子冷却时间小于 0.1 秒成为可能。
{"title":"High-Voltage Supply System for Electron Cooling of the NICA Buster with Ripple Suppression","authors":"A. M. Batrakov, M. I. Bryzgunov, A. D. Goncharov, I. A. Gusev, A. A. Zharikov, V. V. Parkhomchuk, V. B. Reva, D. V. Senkov","doi":"10.1134/s1547477124020055","DOIUrl":"https://doi.org/10.1134/s1547477124020055","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>This paper describes the high-voltage power supply for the booster injector еlectron cooling system of the NICA collider. The ripple suppression module provides low voltage ripple and makes it possible to obtain Xe ion cooling times of less than 0.1 s.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140566197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-09DOI: 10.1134/s1547477124020079
A. A. Khassan, T. S. Dikova, V. V. Afanasyev
Abstract
A number of fast reactor projects suggest using neptunium nitride (NpN) as a fuel. Given that the neutron-physical characteristics of Np-237 are insufficiently studied, a detailed analysis of the libraries of evaluated nuclear data is necessary for numerical modeling of the reactor operation. The purpose of this study is to compare libraries to reduce the errors in calculating the critical mass of Np-237. The experimental values of K-eff (found in the experiment conducted at Los Alamos National Laboratory in 2002) are compared with the calculated values obtained using various software packages (MCNP, Serpent) and 14 libraries of evaluated nuclear data (JEFF, ENDF, JENDL, TENDEL, ROSFOND).
{"title":"Analysis of Libraries of Evaluated Nuclear Data Using the Example of Calculations of Np-237 Sphere Criticality","authors":"A. A. Khassan, T. S. Dikova, V. V. Afanasyev","doi":"10.1134/s1547477124020079","DOIUrl":"https://doi.org/10.1134/s1547477124020079","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A number of fast reactor projects suggest using neptunium nitride (NpN) as a fuel. Given that the neutron-physical characteristics of Np-237 are insufficiently studied, a detailed analysis of the libraries of evaluated nuclear data is necessary for numerical modeling of the reactor operation. The purpose of this study is to compare libraries to reduce the errors in calculating the critical mass of Np-237. The experimental values of <i>K</i>-eff (found in the experiment conducted at Los Alamos National Laboratory in 2002) are compared with the calculated values obtained using various software packages (MCNP, Serpent) and 14 libraries of evaluated nuclear data (JEFF, ENDF, JENDL, TENDEL, ROSFOND).</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140566113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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