Physics of Atomic Nuclei最新文献_第6页

Reconstruction of Near-Earth Cosmic Ray Fluxes from Ground-Based Neutron Monitors 用地基中子监测仪重建近地宇宙射线通量

IF 0.3 4区物理与天体物理

Physics of Atomic Nuclei Pub Date : 2025-03-05 DOI: 10.1134/S1063778824110024

I. A. Lagoida, I. I. Astapov, P. S. Kuzmenkova

引用次数: 0

General Toxic Properties of the Radiopharmaceutical 225Ac-DOTA-PSMA 放射性药物225Ac-DOTA-PSMA的一般毒性

IF 0.3 4区物理与天体物理

Physics of Atomic Nuclei Pub Date : 2025-03-05 DOI: 10.1134/S1063778824100508

V. K. Tishchenko, A. A. Pankratov, O. P. Vlasova, G. A. Demyashkin, A. V. Fedorova, E. A. Plotnikova, Yu. B. Venediktova, S. P. Orlenko, E. D. Stepchenkova, A. A. Ostroukhov, A. N. Shcherbakova, S. A. Ivanov, A. D. Kaprin

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Meteorological Features of NPP Construction Regions in Nigeria 尼日利亚核电站建设地区的气象特征

IF 0.3 4区物理与天体物理

Physics of Atomic Nuclei Pub Date : 2025-03-05 DOI: 10.1134/S106377882411005X

Kenoll B. Orumo, A. I. Ksenofontov, A. P. Elokhin

{"title":"Meteorological Features of NPP Construction Regions in Nigeria","authors":"Kenoll B. Orumo, A. I. Ksenofontov, A. P. Elokhin","doi":"10.1134/S106377882411005X","DOIUrl":"10.1134/S106377882411005X","url":null,"abstract":"The paper considers the application of meteorological characterisation methodology to the regions recommended for NPP construction in Nigeria. Regions Geregu and Itu are considered as such, with significantly different meteorological characteristics, as they are located in different parts of the country (the former in the arid region, in the centre of the country, the latter—on the coast of the Gulf of Guinea in the Niger Delta). The methodology provides the mathematical apparatus for calculating the main characteristics of the surface layer of the atmosphere model. The use of this apparatus made it possible to estimate the general character of meteorological characteristics of the regions (longitudinal wind speed, turbulent diffusion coefficient, parameter characterising the transverse dispersion of impurity) and their averaged values used further as some parameters allowing to determine the characteristics of environmental radioactive contamination, which can include the air basin and the underlying surface. The use of a geophysical model of the surface layer of the atmosphere and the meteorological parameters obtained made it possible to answer a number of questions concerning the peculiarities of atmospheric transport of radioactive impurity characteristic of the regions of Nigeria in which the Government of Nigeria intends to build nuclear power plants. Therefore, the axial and transverse distributions of radioactive impurity as a function of atmospheric stability were obtained under hypothetical radiation accidents, which revealed the peculiarities of radioactive impurity distribution in these regions. The presented results of calculations should be taken into account when estimating the size of the buffer area around NPPs in one and another region and the necessary and sufficient number of environmental radiation monitoring stations when they are located within these zones.","PeriodicalId":728,"journal":{"name":"Physics of Atomic Nuclei","volume":"87 12","pages":"1766 - 1776"},"PeriodicalIF":0.3,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Heating of Elements of the Discharge Node in a Vacuum Neutron Tube of a Portable Neutron Generator with an Increased Neutron Yield 便携式中子发生器真空中子管中放电节点元件的加热与中子产率的提高

IF 0.3 4区物理与天体物理

Physics of Atomic Nuclei Pub Date : 2025-03-05 DOI: 10.1134/S1063778824090412

D. S. Stepanov, A. P. Skripnik, E. Ya. Shkolnikov, A. A. Isaev

引用次数: 0

Determining the Multiplicities of Muons in DECOR Events by Means of Deep Machine Learning 利用深度机器学习确定装饰事件中μ子的多重性

IF 0.3 4区物理与天体物理

Physics of Atomic Nuclei Pub Date : 2025-03-05 DOI: 10.1134/S1063778824100326

E. A. Miroshnichenko, V. S. Vorobev

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Fracture Parameters and Plasticity of the Zr–Nb–Sn–Fe Tubes with Different Hydrides Orientations during the Mechanical Testing 不同氢化物取向Zr-Nb-Sn-Fe管力学试验断裂参数及塑性

IF 0.3 4区物理与天体物理

Physics of Atomic Nuclei Pub Date : 2025-03-05 DOI: 10.1134/S1063778824110073

N. S. Saburov, M. G. Isaenkova, M. I. Petrov, P. S. Dzhumaev, A. A. Plyasov, V. A. Markelov, A. S. Saburov

引用次数: 0

Development of Map of Applicability of Atmospheric Optical Communication at Nuclear Energy Facilities of the Russian Federation 俄罗斯联邦核能设施大气光通信适用性图的研制

IF 0.3 4区物理与天体物理

Physics of Atomic Nuclei Pub Date : 2025-03-05 DOI: 10.1134/S106377882409014X

S. Yu. Kazantsev, M. V. Sapozhnikov, D. N. Terekhin

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The Possibility Investigation of Medical Electron Beam Shaping Using Devices Made from Plastics with Metallic Impurities 用含金属杂质塑料制成的装置进行医用电子束整形的可能性研究

IF 0.3 4区物理与天体物理

Physics of Atomic Nuclei Pub Date : 2025-03-05 DOI: 10.1134/S1063778824100089

E. A. Bushmina, A. A. Bulavskaya, A. A. Grigorieva, I. A. Miloichikova, V. O. Saburov, S. G. Stuchebrov

{"title":"The Possibility Investigation of Medical Electron Beam Shaping Using Devices Made from Plastics with Metallic Impurities","authors":"E. A. Bushmina, A. A. Bulavskaya, A. A. Grigorieva, I. A. Miloichikova, V. O. Saburov, S. G. Stuchebrov","doi":"10.1134/S1063778824100089","DOIUrl":"10.1134/S1063778824100089","url":null,"abstract":"In modern practice, collimators are employed in electron beam therapy to shape the irradiation field into standard configurations. However, tumors often have complex shapes, requiring the use of collimators with individually created collimation windows typically made of metal alloys. The production of such devices is time-consuming, limiting their widespread use. A promising approach to collimator manufacturing is three-dimensional printing, using fused filament fabrication that allows the production of three-dimensional objects quickly and accurately. The polymer materials used today allow the 3D printing of products with densities up to 1.3 g/cm3, requiring the use of a relatively thick collimator. This work proposes using plastics infused with metal impurities for 3D printing collimators created for electron beam therapy. Monte Carlo numerical simulation is performed to calculate the collimator thickness required for the effective absorption of electron beams in the range of therapeutic energies. A modular collimator is therefore designed and created by 3D printing that offering the possibility of varying the diameter of the collimation window from 0.5 to 6 cm. Based on experimental data obtained for a medical electron beam with an energy of 6 MeV, it is found that the 3D printed device can effectively shape a radiation field corresponding to the chosen diameter of the collimation window. Features of using a plastic collimator to shape the field of an electron beam when planning electron beam treatment must be considered.","PeriodicalId":728,"journal":{"name":"Physics of Atomic Nuclei","volume":"87 12","pages":"1929 - 1933"},"PeriodicalIF":0.3,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553715","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Gravity-Inertial Laser Detector of Astro-Geophysical Disturbances in the Underground Laboratory of the BNO INR RAS 中国科学院地下实验室天体地球物理扰动重力-惯性激光探测器

IF 0.3 4区物理与天体物理

Physics of Atomic Nuclei Pub Date : 2025-03-05 DOI: 10.1134/S1063778824090345

K. V. Rudenko, S. I. Oreshkin, S. M. Popov, V. N. Rudenko, V. V. Azarova, Yu. D. Golyaev, I. I. Savelyev, A. G. Shuraev

引用次数: 0

Fine Tuning Phosphonate Synthesis Yields of CsPbBr3 Perovskite Nanocrystals with Enhanced Stability for Applications in Quantum Technologies 具有增强稳定性的CsPbBr3钙钛矿纳米晶体在量子技术中的应用

IF 0.3 4区物理与天体物理

Physics of Atomic Nuclei Pub Date : 2025-03-05 DOI: 10.1134/S1063778824100429

P. S. Samokhvalov, A. S. Gusev, N. V. Siglovaya, N. I. Kargin, I. R. Nabiev

{"title":"Fine Tuning Phosphonate Synthesis Yields of CsPbBr3 Perovskite Nanocrystals with Enhanced Stability for Applications in Quantum Technologies","authors":"P. S. Samokhvalov, A. S. Gusev, N. V. Siglovaya, N. I. Kargin, I. R. Nabiev","doi":"10.1134/S1063778824100429","DOIUrl":"10.1134/S1063778824100429","url":null,"abstract":"In the last few years, lead halide nanocrystals with perovskite mineral structures (PNСs) have attracted increasing attention due to their excellent optical and physical properties, which make them promising for liquid crystal displays, light-emitting diodes, solar concentrators and basic elements of quantum computing systems. Initially, the synthesis of PNСs was carried out using oleic acid and oleylamine as organic surface ligands, and the materials obtained in this way did not have sufficient colloidal and photostability for practical applications. This problem was partially overcome by the use of phosphonic acids and other types of molecules as ligands, but in this case, the reaction is often incomplete, resulting in some of the metal precursors remaining in the product, which in turn leads to a gradual degradation of the optical properties of PNСы. Here, we demonstrate the effective application of a method of additional purification of CsPbBr3 PNC solutions obtained by colloidal synthesis using tetradecylphosphonic acid as a ligand by gel permeation chromatography. As a result of this procedure, we were able to remove the excess of unreacted precursors from the synthesized nanocrystals, which allowed us to achieve the preservation of a high value of the quantum yield of PNCs fluorescence within 6 months from the moment of their synthesis. The results open perspectives for creation of more efficient material for application in the fields of quantum technologies and, in particular, for creation of single photon sources.","PeriodicalId":728,"journal":{"name":"Physics of Atomic Nuclei","volume":"87 12","pages":"1940 - 1944"},"PeriodicalIF":0.3,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0