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Physics of Particles and Nuclei Letters最新文献

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Vacuum-Insulated Tandem Accelerator as a Powerful Fast Neutron Generator 真空绝缘串联加速器作为一种强大的快中子发生器
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-08-11 DOI: 10.1134/S154747712570044X
D. A. Kasatov, Ya. A. Kolesnikov, N. Sh. Singatulina, E. O. Sokolova, I. M. Shchudlo, S. Yu. Taskaev
{"title":"Vacuum-Insulated Tandem Accelerator as a Powerful Fast Neutron Generator","authors":"D. A. Kasatov,&nbsp;Ya. A. Kolesnikov,&nbsp;N. Sh. Singatulina,&nbsp;E. O. Sokolova,&nbsp;I. M. Shchudlo,&nbsp;S. Yu. Taskaev","doi":"10.1134/S154747712570044X","DOIUrl":"10.1134/S154747712570044X","url":null,"abstract":"<p>High flux neutron sources are required for many scientific research and technological applications. The accelerator based neutron source VITA operated by the Budker Institute of Nuclear Physics is used both to generate epithermal neutron fluxes for the development of boron-neutron capture therapy and to generate fast neutron fluxes for radiation testing of advanced materials. For example, some materials developed for the Large Hadron Collider (LHC), the International Thermonuclear Experimental Reactor (ITER), the Institute of Theoretical and Experimental Physics, and other research institutions were irradiated with a fast neutron flux up to a fluence of 3 × 10<sup>14</sup> cm<sup>–2</sup>, and a new knowledge was obtained. The accelerator based neutron source VITA as a powerful fast neutron generator is described and the results of a long experimental run on fast neutron generation are presented. The features and limitations of using the accelerator based neutron source VITA to generate a powerful fast neutron flux are noted and suggestions for increasing the neutron flux for its further use for both radiation testing of materials and equipment are discussed.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 4","pages":"713 - 716"},"PeriodicalIF":0.4,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144814499","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
Reflection of a Charged Particle Beam from a Material Medium in 3D Geometry 三维几何介质中带电粒子束的反射
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-08-11 DOI: 10.1134/S1547477125700451
V. G. Kurakin
{"title":"Reflection of a Charged Particle Beam from a Material Medium in 3D Geometry","authors":"V. G. Kurakin","doi":"10.1134/S1547477125700451","DOIUrl":"10.1134/S1547477125700451","url":null,"abstract":"<p>The concept of flow lines was used in the past to find an analytical solution of the problem of reflection of charged particle beams from a flat interface of a vacuum and an arbitrary material medium. It had been also shown that the stochastic process of multiple Coulomb scattering in the given geometry is described by a distribution function that coincides with the one that is formed when a given beam propagates in an infinite medium. An attempt is made to calculate the coefficient and reflection angle of a charged particle beam when in the case of oblique incidence on the interface between a vacuum and a material medium, taking into account the 3D geometry of the problem.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 4","pages":"723 - 726"},"PeriodicalIF":0.4,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144814274","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
Stabilization System of the High-Voltage Power Supply for the LINAC-200 Accelerator Electron Gun LINAC-200加速器电子枪高压电源稳定系统
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-08-11 DOI: 10.1134/S1547477125700645
A. A. Ulankin, V. V. Kobets, A. E. Brukva, A. N. Trifonov, O. L. Seroshtanov
{"title":"Stabilization System of the High-Voltage Power Supply for the LINAC-200 Accelerator Electron Gun","authors":"A. A. Ulankin,&nbsp;V. V. Kobets,&nbsp;A. E. Brukva,&nbsp;A. N. Trifonov,&nbsp;O. L. Seroshtanov","doi":"10.1134/S1547477125700645","DOIUrl":"10.1134/S1547477125700645","url":null,"abstract":"<p>The stabilization system for the high-voltage power supply of the LINAC-200 accelerator electron gun is presented. High-voltage power supply is a key component of the electron gun, providing the stable voltage required to accelerate charged particles. The instability of this source can lead to fluctuations in the electron beam and a decrease in the overall efficiency of the accelerator. The developed stabilization system is intended to minimize voltage instability, which makes it possible to enhance the accuracy and efficiency of particle acceleration in the accelerator.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 4","pages":"817 - 820"},"PeriodicalIF":0.4,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144814547","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
Dynamic Vacuum in a Booster Synchrotron 助推同步加速器中的动态真空
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-08-11 DOI: 10.1134/S1547477125700530
D. M. Popov, V. A. Vostrikov, A. A. Krasnov
{"title":"Dynamic Vacuum in a Booster Synchrotron","authors":"D. M. Popov,&nbsp;V. A. Vostrikov,&nbsp;A. A. Krasnov","doi":"10.1134/S1547477125700530","DOIUrl":"10.1134/S1547477125700530","url":null,"abstract":"<p>In heavy ion accelerators, special attention is paid to the processes of electron loss and capture by ions during interaction with the residual gas. A change in the ion charge leads to their loss on the vacuum chamber walls. As a result of ion-stimulated desorption processes, the concentration of residual gas locally increases, which, in turn, can lead to an avalanche-like increase in beam intensity loss, or so-called vacuum instability. A booster synchrotron with electron cooling for technological applications is being developed at the Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences (BINP SB RAS). The processes of vacuum instability and various mechanisms of its suppression are simulated as part of its design.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 4","pages":"764 - 768"},"PeriodicalIF":0.4,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144814469","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
Calibration of Microwave Beam Position Sensors of LINAC-200 LINAC-200微波波束位置传感器的标定
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-08-11 DOI: 10.1134/S1547477125700608
S. V. Slesarev, V. V. Kobets, A. E. Bukva, A. N. Trifonov
{"title":"Calibration of Microwave Beam Position Sensors of LINAC-200","authors":"S. V. Slesarev,&nbsp;V. V. Kobets,&nbsp;A. E. Bukva,&nbsp;A. N. Trifonov","doi":"10.1134/S1547477125700608","DOIUrl":"10.1134/S1547477125700608","url":null,"abstract":"<p>Currently, the Laboratory of Nuclear Problems is preparing the launch of LINAC-200, a linear electron accelerator. This accelerator will allow conducting methodological studies of the elementary particle detectors under development at the Laboratory of Nuclear Problems and other laboratories on test electron beams with energies from 20 to 200 MeV in a wide range of beam intensities. The accelerator uses high-frequency traveling-wave monitors providing beam positioning with an accuracy of up to 0.1 mm, which reduces beam losses in the accelerating path and simplifies the accelerator adjustment. Calibration is necessary to ensure this accuracy. The methodology and results of sensor calibration are presented.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 4","pages":"798 - 801"},"PeriodicalIF":0.4,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144814493","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
Calculations and Testing of the Electrical Strength of Collet Inputs of Magnetic Kickers of the Nuclotron 核中子磁踢子夹头输入电强度的计算与测试
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-08-11 DOI: 10.1134/S154747712570058X
P. A. Sidorov, A. P. Kozlov, M. P. Lepkin, I. N. Repkin, A. I. Sidorov, V. S. Shvetsov
{"title":"Calculations and Testing of the Electrical Strength of Collet Inputs of Magnetic Kickers of the Nuclotron","authors":"P. A. Sidorov,&nbsp;A. P. Kozlov,&nbsp;M. P. Lepkin,&nbsp;I. N. Repkin,&nbsp;A. I. Sidorov,&nbsp;V. S. Shvetsov","doi":"10.1134/S154747712570058X","DOIUrl":"10.1134/S154747712570058X","url":null,"abstract":"<p>Designs of high-voltage collet inputs of magnetic kickers developed for the NICA accelerator complex are presented. The designs of the collet connections of the inputs are described in detail. The method for determining the electrical strength of the inputs is described. The operating voltages of the collet inputs are determined, which for the injection and output kickers are 46 and 60 kV, respectively. The inductances of the inputs are measured. The materials for the manufacture of the collets are selected. The results of resource tests of the collet inputs are presented.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 4","pages":"789 - 793"},"PeriodicalIF":0.4,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144814494","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
On Estimating Geometrical Displacements of the Nuclotron Quadrupole Lenses 核子四极透镜几何位移的估计
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-08-11 DOI: 10.1134/S1547477125700682
A. V. Philippov, E. V. Gorbachev, V. L. Smirnov, A. V. Tuzikov
{"title":"On Estimating Geometrical Displacements of the Nuclotron Quadrupole Lenses","authors":"A. V. Philippov,&nbsp;E. V. Gorbachev,&nbsp;V. L. Smirnov,&nbsp;A. V. Tuzikov","doi":"10.1134/S1547477125700682","DOIUrl":"10.1134/S1547477125700682","url":null,"abstract":"<p>This article presents an algorithm which, is based on experimentally measured beam positions in the synchrotron beam chamber, allows one to estimate the geometric displacements of quadrupole lenses from their ideal position in the ring. Using the proposed algorithm and the measured positions of the xenon-124 nuclei beam in the ion synchrotron Nuclotron beam chamber at injection and extraction energies during RUN IV, the geometric displacements of the Nuclotron quadrupole lenses were estimated.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 4","pages":"833 - 836"},"PeriodicalIF":0.4,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144814452","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
Current Status of S-Frequency Radiation Therapy Facility s频放射治疗设备的现状
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-08-11 DOI: 10.1134/S1547477125700554
N. Yu. Samarokov, A. A. Batov, R. A. Zbruev, M. A. Gusarova, S. M. Polozov, M. V. Lalayan, S. A. Smirnov, V. I. Rashchikov, T. V. Bondarenko, V. L. Shatokhin
{"title":"Current Status of S-Frequency Radiation Therapy Facility","authors":"N. Yu. Samarokov,&nbsp;A. A. Batov,&nbsp;R. A. Zbruev,&nbsp;M. A. Gusarova,&nbsp;S. M. Polozov,&nbsp;M. V. Lalayan,&nbsp;S. A. Smirnov,&nbsp;V. I. Rashchikov,&nbsp;T. V. Bondarenko,&nbsp;V. L. Shatokhin","doi":"10.1134/S1547477125700554","DOIUrl":"10.1134/S1547477125700554","url":null,"abstract":"<p>Results of the final stages of design and optimization of the accelerating structure and electron source for the radiation therapy facility are presented. Training for and technical testing of the linear accelerator are described. Interim test results are reported, and a plan for further work on the project is presented.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 4","pages":"775 - 778"},"PeriodicalIF":0.4,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144814413","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
Compensation of the Vertical Overfocusing of the Beam during Its Extraction from U400M Cyclotron U400M回旋加速器提取光束垂直过聚焦的补偿
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-08-11 DOI: 10.1134/S1547477125700359
I. A. Ivanenko, V. A. Semin, S. A. Krupko
{"title":"Compensation of the Vertical Overfocusing of the Beam during Its Extraction from U400M Cyclotron","authors":"I. A. Ivanenko,&nbsp;V. A. Semin,&nbsp;S. A. Krupko","doi":"10.1134/S1547477125700359","DOIUrl":"10.1134/S1547477125700359","url":null,"abstract":"<p>Accelerated beams are extracts from U400M isochronous cyclotron by means of recharging on a thin carbon foil. Two passive magnetic channels are placed after the foil to correct radial dimension of the extracted beam during its passing through strong radial gradient of the fringe magnetic field. The trajectory of the beam after recharging at the foil crosses the valley-sector at an acute angle that leads to vertical overfocusing. This effect was not corrected in the original configuration of the extraction system, and led to strong aperture losses of the extracted beam. We have realized a method to compensate the vertical overfocusing of the beam by changing of the first passive magnetic channel configuration is realize.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 4","pages":"673 - 675"},"PeriodicalIF":0.4,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144814369","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
Helium Infrastructure of the Cryogenic Complex for the Collider: Results of Preparation for the Technological Session 对撞机低温复合体的氦基础设施：技术会议的准备结果
IF 0.4
Physics of Particles and Nuclei Letters Pub Date : 2025-08-11 DOI: 10.1134/S1547477125700438
N. N. Agapov, S. V. Gudkov, A. E. Emelyanov, A. V. Konstantinov, Yu. A. Mitrofanova, D. S. Shvidkiy, T. G. Zhironkina, A. A. Bazvanov
{"title":"Helium Infrastructure of the Cryogenic Complex for the Collider: Results of Preparation for the Technological Session","authors":"N. N. Agapov,&nbsp;S. V. Gudkov,&nbsp;A. E. Emelyanov,&nbsp;A. V. Konstantinov,&nbsp;Yu. A. Mitrofanova,&nbsp;D. S. Shvidkiy,&nbsp;T. G. Zhironkina,&nbsp;A. A. Bazvanov","doi":"10.1134/S1547477125700438","DOIUrl":"10.1134/S1547477125700438","url":null,"abstract":"<p>The technological session of the Collider ring is scheduled for early 2025. The session program includes cooling magnets to operating temperature of 4.5 K, testing the magnetic-cryostat system for leaks, testing with the operating current into the magnets, and checking the operability of the correctors. New equipment of the cryogenic complex will be used to cool the magnets: refrigerators RSG Nos. 2 and 3, helium liquefier OG-1000, cold helium storage KTsG-40/0.5 and an extensive manifold of cryogenic pipelines. Results of testing new cryogenic complex facilities are presented and technological solutions that will provide the optimal operating mode of the accelerator equipment at helium temperatures are described.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":"22 4","pages":"717 - 722"},"PeriodicalIF":0.4,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144814275","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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