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Bulletin of the Russian Academy of Sciences: Physics最新文献

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On the Prospects of an Optical Nuclear Clock Based on the 229mTh Isomer from the α-Decay of 233U 基于233U α-衰变229mTh同分异构体的光学核时钟展望
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-10-19 DOI: 10.1134/S106287382670200X
V. V. Koltsov
{"title":"On the Prospects of an Optical Nuclear Clock Based on the 229mTh Isomer from the α-Decay of 233U","authors":"V. V. Koltsov","doi":"10.1134/S106287382670200X","DOIUrl":"10.1134/S106287382670200X","url":null,"abstract":"<p>For a clock based on isomeric <sup>229<i>m</i></sup>Th nuclei the possibility of using the frequency of isomeric transition photons from sources with the isomers obtained by laser excitation of <sup>229</sup>Th nuclei in crystals or from the α-decay of <sup>233</sup>U in a hydrochloric acid solution as a reference frequency is considered.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 10","pages":"1907 - 1913"},"PeriodicalIF":0.48,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219490","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
Simulation of Creation of Neutrons and Nuclear Fragments in the UrQMD 3.4 Model Supplemented with the Clustering Model and the Statistical Multifragmentation Model 基于聚类模型和统计多碎片模型的UrQMD 3.4模型中中子和核碎片生成的模拟
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-10-19 DOI: 10.1134/S1062873826701923
A. S. Galoyan, T. Q. T. Le, A. V. Taranenko, V. V. Uzhinsky
{"title":"Simulation of Creation of Neutrons and Nuclear Fragments in the UrQMD 3.4 Model Supplemented with the Clustering Model and the Statistical Multifragmentation Model","authors":"A. S. Galoyan,&nbsp;T. Q. T. Le,&nbsp;A. V. Taranenko,&nbsp;V. V. Uzhinsky","doi":"10.1134/S1062873826701923","DOIUrl":"10.1134/S1062873826701923","url":null,"abstract":"<p>The UrQMD 3.4 model, which was designed to generate Monte Carlo events of multiple particle creation processes in hadron–nucleus and nucleus–nucleus collisions, has been supplemented with an algorithm of calculation of the excitation energies of residual nuclei and their composition. Relaxation of residual nuclei produces free neutrons, light evaporation particles, and nuclear fragments. This allows for a satisfactory description of experimental data on spectra of mesons, neutrons, protons and nuclear fragments at high energies.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 10","pages":"1855 - 1860"},"PeriodicalIF":0.48,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219493","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 Low-Energy Ionizing Radiation on the Growth and Productivity of Rapeseed 低能电离辐射对油菜籽生长和生产力的影响
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-10-19 DOI: 10.1134/S1062873826701820
Ya. V. Zubritskaya, U. A. Bliznyuk, P. Yu. Borshchegovskaya, S. A. Zolotov, V. S. Ipatova, A. A. Malyuga, A. D. Nikitchenko, A. P. Chernyaev, M. S. Chibisova, N. S. Chulikova, D. S. Yurov, S. A. Goloshchapov
{"title":"Effect of Low-Energy Ionizing Radiation on the Growth and Productivity of Rapeseed","authors":"Ya. V. Zubritskaya,&nbsp;U. A. Bliznyuk,&nbsp;P. Yu. Borshchegovskaya,&nbsp;S. A. Zolotov,&nbsp;V. S. Ipatova,&nbsp;A. A. Malyuga,&nbsp;A. D. Nikitchenko,&nbsp;A. P. Chernyaev,&nbsp;M. S. Chibisova,&nbsp;N. S. Chulikova,&nbsp;D. S. Yurov,&nbsp;S. A. Goloshchapov","doi":"10.1134/S1062873826701820","DOIUrl":"10.1134/S1062873826701820","url":null,"abstract":"<p>The effect of low-energy ionizing radiation in the dose range of 5–30 Gy on the biological performance of rapeseed (<i>Brassica napus</i>) seeds was investigated. Presowing irradiation led to an improvement in both germination rate and crop productivity. X-ray irradiation at doses of 15, 20, and 25 Gy increased rapeseed yield by 298, 130, and 202%, respectively, in comparison with a reference group. Irradiation with accelerated electrons at doses of 30 and 25 Gy increased the yield by 42 and 126%, respectively.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 10","pages":"1779 - 1785"},"PeriodicalIF":0.48,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219498","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
Neutron-Induced Fission Cross Section of 239Pu, 240Pu, and 242Pu in the Energy Range from 0.3 to 500 MeV 239Pu、240Pu和242Pu在0.3 ~ 500 MeV能量范围内的中子诱导裂变截面
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-10-19 DOI: 10.1134/S1062873826702059
A. S. Vorobyev, O. A. Shcherbakov, L. A. Vaishnene, A. M. Tiagelskaia, N. M. Olkhovich, A. L. Barabanov, T. E. Kuzmina
{"title":"Neutron-Induced Fission Cross Section of 239Pu, 240Pu, and 242Pu in the Energy Range from 0.3 to 500 MeV","authors":"A. S. Vorobyev,&nbsp;O. A. Shcherbakov,&nbsp;L. A. Vaishnene,&nbsp;A. M. Tiagelskaia,&nbsp;N. M. Olkhovich,&nbsp;A. L. Barabanov,&nbsp;T. E. Kuzmina","doi":"10.1134/S1062873826702059","DOIUrl":"10.1134/S1062873826702059","url":null,"abstract":"<p>The results of measurements of the fission cross sections of <sup>239</sup>Pu, <sup>240</sup>Pu, and <sup>242</sup>Pu nuclei by neutrons in the energy range from 0.3 to 500 MeV carried out at the GNEIS neutron complex at the Petersburg Nuclear Physics Institute of the National Research Centre “Kurchatov Institute” (PNPI, Gatchina) are presented.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 10","pages":"1943 - 1949"},"PeriodicalIF":0.48,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219455","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
Study of the Aging Kinetics of a Linden Icon Board Using Raman Spectroscopy–Microscopy 用拉曼光谱显微镜研究菩提树图标板的老化动力学
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-10-19 DOI: 10.1134/S1062873826701844
A. V. Mikhailova, A. L. Dobryakov, V. B. Ivanov, D. S. Smirnov, V. A. Nadtochenko
{"title":"Study of the Aging Kinetics of a Linden Icon Board Using Raman Spectroscopy–Microscopy","authors":"A. V. Mikhailova,&nbsp;A. L. Dobryakov,&nbsp;V. B. Ivanov,&nbsp;D. S. Smirnov,&nbsp;V. A. Nadtochenko","doi":"10.1134/S1062873826701844","DOIUrl":"10.1134/S1062873826701844","url":null,"abstract":"<p>Artificial aging of a (linden) icon board was studied using Raman spectroscopy–microscopy. Chemometric analysis revealed significant changes in the molecular composition and structure of the samples. A model for aging time prediction from Raman spectra was constructed. The proposed methods of analysis can be applied in the restoration of valuable icons.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 10","pages":"1795 - 1802"},"PeriodicalIF":0.48,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1062873826701844.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Background Fluctuations of the Quantulus 1220 Radiometer in the Radiocarbon Energy Range 量子1220辐射计在放射性碳能量范围内的背景涨落
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-10-19 DOI: 10.1134/S1062873826702011
V. I. Tsygankova, D. V. Petrov, G. K. Pavlyukov, S. L. Vartanyan
{"title":"Background Fluctuations of the Quantulus 1220 Radiometer in the Radiocarbon Energy Range","authors":"V. I. Tsygankova,&nbsp;D. V. Petrov,&nbsp;G. K. Pavlyukov,&nbsp;S. L. Vartanyan","doi":"10.1134/S1062873826702011","DOIUrl":"10.1134/S1062873826702011","url":null,"abstract":"<p>Background fluctuations of Quantulus 1220 radiometers in radiocarbon laboratories have been investigated. It has been established that fluctuations of the instrumental background in the radiocarbon energy spectrum region depend on variations in the muon flux. The maximum amplitudes are observed during the cold season of the year. Measurements of low-activity samples are recommended to be performed during the warm period of the year.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 10","pages":"1914 - 1921"},"PeriodicalIF":0.48,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219453","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
Quasi-Classical Description of the Helium Atom and the Behavior of Constituent Quarks for Hadrons 氦原子的准经典描述和强子组成夸克的行为
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-10-19 DOI: 10.1134/S1062873826702047
A. T. D’yachenko
{"title":"Quasi-Classical Description of the Helium Atom and the Behavior of Constituent Quarks for Hadrons","authors":"A. T. D’yachenko","doi":"10.1134/S1062873826702047","DOIUrl":"10.1134/S1062873826702047","url":null,"abstract":"<p>It turned out to be possible to obtain a solution to the quantum problem of two and three bodies in the semiclassical approximation using the example of hydrogen and helium atoms, as well as hadrons such as the pion, proton, and some resonances in the language of quarks. In the latter case, it was possible to consider a three-quark problem for the proton and to obtain expressions for the wave functions of heavy quarkonium based on Cornell potential.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 10","pages":"1939 - 1942"},"PeriodicalIF":0.48,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219454","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
Cross Sections of Gamma-Quanta Production with Energies of 0.429 and 0.478 MeV in the Reactions 6Li + d and 7Li + d 6Li + d和7Li + d反应能量分别为0.429和0.478 MeV的γ -量子产生截面
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-10-19 DOI: 10.1134/S1062873826702023
L. N. Generalov, S. M. Taova, O. P. Vikhlyantsev, I. A. Karpov, A. D. Tumkin, V. A. Zherebtsov
{"title":"Cross Sections of Gamma-Quanta Production with Energies of 0.429 and 0.478 MeV in the Reactions 6Li + d and 7Li + d","authors":"L. N. Generalov,&nbsp;S. M. Taova,&nbsp;O. P. Vikhlyantsev,&nbsp;I. A. Karpov,&nbsp;A. D. Tumkin,&nbsp;V. A. Zherebtsov","doi":"10.1134/S1062873826702023","DOIUrl":"10.1134/S1062873826702023","url":null,"abstract":"<p>We present a new evaluation of integral cross sections of γ-quanta production with energies of 0.429 and 0.478 MeV in the reactions <sup>6</sup>Li(d, n<sub>1</sub>)<sup>7</sup>Be*(0.429), <sup>6</sup>Li(d, p<sub>1</sub>)<sup>7</sup>Li*(0.478), <sup>7</sup>Li(d, 2n)<sup>7</sup>Be*(0.429), and <sup>7</sup>Li(d, d<sub>1</sub>)<sup>7</sup>Li*(0.478). Uncertainty of the evaluated data is in the range of 0.2–11%. This work extends our research into evaluation of integral cross sections of <sup>6</sup>Li(d, p<sub>0,1,2,4</sub>) reactions and the corresponding <sup>6</sup>Li(d, n<sub>0,1,2,4</sub>) mirror reactions.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 10","pages":"1922 - 1931"},"PeriodicalIF":0.48,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219423","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
Development of the Graphical Interface for the Physical Module of the Ion Beam Therapy Planning System 离子束治疗计划系统物理模块图形界面的开发
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-10-19 DOI: 10.1134/S1062873826701959
E. V. Parmenova, O. P. Yushchenko
{"title":"Development of the Graphical Interface for the Physical Module of the Ion Beam Therapy Planning System","authors":"E. V. Parmenova,&nbsp;O. P. Yushchenko","doi":"10.1134/S1062873826701959","DOIUrl":"10.1134/S1062873826701959","url":null,"abstract":"<p>A description of the graphical interface is presented. It is developed for the Physical Module of the planning system of the Ion Radiation Therapy Center under construction based on the existing U-70 Accelerator Complex at the Logunov Institute of High Energy Physics, National Research Centre “Kurchatov Institute,” Protvino, Moscow oblast, Russia. The structure, current state, and features of the graphical interface are considered. The interface is implemented in Qt framework. The current version of the shell is demonstrated, which is aimed to work with medical files in DICOM format, produce optimized voxel representation of patient data and relevant ROIs structures, calculate bolus shape, and prepare of the initial parameters for the production of a large data set by the Monte Carlo method.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 10","pages":"1879 - 1884"},"PeriodicalIF":0.48,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219487","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
Systematics and Structure of Isomeric States of Spherical Nuclei 球核异构态的分类与结构
IF 0.48
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2026-10-19 DOI: 10.1134/S1062873826701972
A. M. Kostrygina, I. A. Mitropolsky
{"title":"Systematics and Structure of Isomeric States of Spherical Nuclei","authors":"A. M. Kostrygina,&nbsp;I. A. Mitropolsky","doi":"10.1134/S1062873826701972","DOIUrl":"10.1134/S1062873826701972","url":null,"abstract":"<p>Based on the evaluated nuclear structure data file, the systematization of the lifetimes of isomeric states of spherical nuclei associated with the 1<i>g</i><sub>9/2</sub> orbital was carried out. When comparing the experimental values of the half-lives with the single-particle estimate, the branching decay of isomeric states and the actual values of the radii of nuclear charges were considered. The single-particle model qualitatively describes the observed changes in the probabilities of isomeric transitions both in magnitude, varying by several orders of magnitude, and in groups of isotopes with increasing mass number.</p>","PeriodicalId":504,"journal":{"name":"Bulletin of the Russian Academy of Sciences: Physics","volume":"90 10","pages":"1889 - 1895"},"PeriodicalIF":0.48,"publicationDate":"2026-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149219495","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
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