Nuclear Physics and Atomic Energy最新文献_第6页

Properties of the diffusion and drift kinetic coefficients in momentum space for a cold Fermi system 冷费米系统动量空间中扩散和漂移动力学系数的性质

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Nuclear Physics and Atomic Energy Pub Date : 2022-10-27 DOI: 10.15407/jnpae2023.01.005

S. V. Lukyanov

引用次数: 0

Potentials of interaction of 10,11,12,13B isotopes with 12C 10、11、12、13B同位素与12C的相互作用势

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Nuclear Physics and Atomic Energy Pub Date : 2022-09-25 DOI: 10.15407/jnpae2022.03.164

S. Mezhevych, A. Rudchik, O. Ponkratenko, K. Rusek, K. Kemper, V.M. Kyrianchuk, A. A. Rudchik, Y. Stepanenko, V. Uleshchenko

{"title":"Potentials of interaction of 10,11,12,13B isotopes with 12C","authors":"S. Mezhevych, A. Rudchik, O. Ponkratenko, K. Rusek, K. Kemper, V.M. Kyrianchuk, A. A. Rudchik, Y. Stepanenko, V. Uleshchenko","doi":"10.15407/jnpae2022.03.164","DOIUrl":"https://doi.org/10.15407/jnpae2022.03.164","url":null,"abstract":"A comparative analysis of calculations for the 12С(10В,10В)12С elastic scattering at Еlab(10B) = 41.3 MeV, the 12С(11В,11В)12С elastic scattering at Еlab(11B) = 40.0 MeV, transfer reactions 13С(11В,12С)12В and 14С(11В,12С)13В at Еlab(11B) = 45.0 МеВ was performed within the coupled-reaction-channels method (CRC) using previously deduced Woods-Saxon potentials for the interaction of 10,11,12,13В + 12С nuclei in the exit reaction channels, as well as potentials for these systems of nuclei generated by means of the double-folding method using theoretically modeled shapes for the distributions of protons and neutrons in 10,11,12,13В and 12С. The relationship of isotopic effects (differences of the calculated CRC cross sections when replacing the potential for a given pair of nuclei by interaction potential for one nucleus with the isotope of another nucleus) with the internal structure, e.g. the shapes of nucleon density distributions in the interacting nuclei, is investigated. The shapes (radial dependence) of recently deduced Woods-Saxon potentials and potentials calculated by means of the double-folding methods for the systems of 10,11,12,13В + 12С nuclei are compared. Based on the results of the analysis of experimental data, an assumption is made about the possible differences in the shapes of surface nucleon density distributions from the ones modeled theoretically in 10,11B isotopes.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"96 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79183059","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}

引用次数: 0

Elastic and inelastic scattering of 15N ions by 10B at energy 81 MeV. Isotopic effects in scattering of 15N + 10В, 15N + 11В, 14N + 10В nuclei 81mev下10B对15N离子的弹性和非弹性散射。15N + 10В， 15N + 11В， 14N + 10В核散射中的同位素效应

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Nuclear Physics and Atomic Energy Pub Date : 2022-09-25 DOI: 10.15407/jnpae2022.03.153

A. Rudchik, A. A. Rudchik, V.V. Khejlo, K. Rusek, K. Kemper, E. Piasecki, A. Stolarz, A. Trzcińska, Val. M. Pirnak, O. Ponkratenko, E. I. Koshchy, O. E. Kutsyk, S. Mezhevych, A. P. Ilyin, Y. Stepanenko, V. Uleshchenko, Yu. O. Shyrma

{"title":"Elastic and inelastic scattering of 15N ions by 10B at energy 81 MeV. Isotopic effects in scattering of 15N + 10В, 15N + 11В, 14N + 10В nuclei","authors":"A. Rudchik, A. A. Rudchik, V.V. Khejlo, K. Rusek, K. Kemper, E. Piasecki, A. Stolarz, A. Trzcińska, Val. M. Pirnak, O. Ponkratenko, E. I. Koshchy, O. E. Kutsyk, S. Mezhevych, A. P. Ilyin, Y. Stepanenko, V. Uleshchenko, Yu. O. Shyrma","doi":"10.15407/jnpae2022.03.153","DOIUrl":"https://doi.org/10.15407/jnpae2022.03.153","url":null,"abstract":"New experimental data of angular distributions for the elastic and inelastic scattering of 15N ions by 10B nuclei were obtained at the energy Elab(15N) = 81 MeV. The experimental data were analyzed within the coupled-reaction channels method (CRC). The Woods - Saxon optical potentials were used for nuclei interactions in the calculations. The potential's parameters for the interaction of 15N + 10В nuclei were deduced as well as it was measured the angular distribution of the elastic scattering for these nuclei. The experimental data of the 15N + 10В elastic scattering are compared with data of the 15N + 11В and 14N + 10В scatterings. It was discovered isotopic effects in the scatterings of these three nuclear couples due to the difference in the optical potentials of the interaction of these nuclei and their structure. New experimental data of inelastic scattering of 15N + 10В nuclei for 0.718 - 3.587 МеV states of 10В nucleus and for 5.270 - 6.324 МеV states of 15N nucleus were measured. These data were analyzed within the CRC method using the translation-invariant shell model for collective excitations of 15N and 10B nuclei. Information about deformations of these nuclei was obtained.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"21 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90397609","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}

引用次数: 1

Determination of 63Ni activity in NPP construction materials 核电厂建筑材料中63Ni活性的测定

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Nuclear Physics and Atomic Energy Pub Date : 2022-09-25 DOI: 10.15407/jnpae2022.03.207

V. O. Zheltonozhskyi, D. E. Myznikov, A. M. Savrasov, V. I. Slisenko

引用次数: 1

The nuclear safety monitoring system for fuel-containing materials located in destroyed unit No. 4 of the Chornobyl NPP and proposals for its modernization 位于被毁的切尔诺贝利核电站4号机组的含燃料材料核安全监测系统及其现代化建议

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Nuclear Physics and Atomic Energy Pub Date : 2022-09-25 DOI: 10.15407/jnpae2022.03.172

M. V. Saveliev, R. L. Godun, M. Pantin, I. Skiter, K. Sushchenko

引用次数: 0

Zoning of radioactively contaminated territories after the Chornobyl accident 切尔诺贝利事故后放射性污染地区的分区

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Nuclear Physics and Atomic Energy Pub Date : 2022-09-25 DOI: 10.15407/jnpae2022.03.182

V. Kashparov, D. Holiaka, S. Levchuk, V. Berkovskyy

{"title":"Zoning of radioactively contaminated territories after the Chornobyl accident","authors":"V. Kashparov, D. Holiaka, S. Levchuk, V. Berkovskyy","doi":"10.15407/jnpae2022.03.182","DOIUrl":"https://doi.org/10.15407/jnpae2022.03.182","url":null,"abstract":"The radiological zoning of Chornobyl contaminated areas was one of the essential elements of social and radiation protection. The zoning was based on estimates of annual committed effective doses to members of the public and on the levels of radionuclide deposition density. In 1991, 86 settlements were classified as associated with the zone of unconditional (mandatory) resettlement, and 841 settlements were assigned to the zone of guaranteed voluntary resettlement. The status of these settlements has been preserved until now. The assessments showed that as of 2022, for all settlements located outside the Chornobyl Exclusion Zone the radiological conditions do not exceed the current legislative criteria for inclusion in the zone of unconditional (mandatory) resettlement. It is also shown that in 2022, the zone of guaranteed voluntary resettlement can be assigned for: only 38 settlements, according to the legislative criterion \"90Sr density of contamination\" and only 17 settlements, according to the legislative criterion \"137Cs density of contamination\". The work also indicates and analyses the provisions of current legislation that require clarification.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"48 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89228776","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}

引用次数: 0

Effect of forest fires on forest plant complexes contaminated by radionuclides 森林火灾对受放射性核素污染的森林植物复合体的影响

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Nuclear Physics and Atomic Energy Pub Date : 2022-09-25 DOI: 10.15407/jnpae2022.03.195

L. Romanchuck, V. Ustymenko

{"title":"Effect of forest fires on forest plant complexes contaminated by radionuclides","authors":"L. Romanchuck, V. Ustymenko","doi":"10.15407/jnpae2022.03.195","DOIUrl":"https://doi.org/10.15407/jnpae2022.03.195","url":null,"abstract":"Among the most pressing threats to the existence of forest plant complexes of the nature reserve fund is the pyrogenic danger, which is exacerbated by changes in the natural hydrolytic regime and global climate change, the driving effects of which are currently difficult to fully assess. The article highlights the results of a study of the forest plant complexes and soil state of the nature reserve \"Drevlyanskyi\" in Zhytomyr region after the fires. The results of the field survey of plantations, agrochemical and radiological analysis of soil indicators are presented. Studies show a change in the composition of forest plant complexes, a reduction in the number of herbaceous species, and a decrease in the area of moss and lichen cover. The surveyed area is characterized by significant spatial heterogeneity of the main agrochemical and physicochemical parameters of the soil. There was a slight increase in the content of heavy metals in the soil, however, the indicators did not exceed the maximum allowable concentrations in these areas. To assess the radiation situation after fires on the territory of the nature reserve, the indicators of the density of soil pollution with 137Cs and 90Sr were determined. The authors recommended a set of measures to improve the efficiency of nature reserves. Adherence to the recommendations will help to increase the environmental sustainability of forest plant complexes and will minimize the occurrence of fires and their consequences.","PeriodicalId":42588,"journal":{"name":"Nuclear Physics and Atomic Energy","volume":"23 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2022-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73675805","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}

引用次数: 0

Improved parametrization of inclusive proton spectra from 3H(α,p)6He reaction using data obtained in a correlation experiment 利用相关实验数据改进了3H(α，p)6He反应包涵质子谱的参数化

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Nuclear Physics and Atomic Energy Pub Date : 2022-09-25 DOI: 10.15407/jnpae2022.03.159

O. Povoroznyk, O. K. Gorpinich

引用次数: 0

Alkyl derivative of p-terphenyl as an activator of polysiloxane-based scintillator 对三苯基的烷基衍生物作为聚硅氧烷基闪烁体的活化剂

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Nuclear Physics and Atomic Energy Pub Date : 2022-09-25 DOI: 10.15407/jnpae2022.03.212

P. Zhmurin, D.A. Yelisieiev, V. Alekseev, O.V. Yelisieieva, Yu.О. Нurkalenko

引用次数: 0

Preliminary safety analysis at the decommissioning of the WWR-M research reactor WWR-M研究堆退役安全性初步分析