{"title":"利用线性电子加速器的轫致辐射处理大型物体","authors":"G. O. Buyanov","doi":"10.1134/S1547477124010047","DOIUrl":null,"url":null,"abstract":"<p>The results of a numerical analysis of the dynamics of electrons in a beam injected into air with an energy of several tens of MeV and focused by the field of an accompanying electromagnetic radiation (EMR) wave at a full stopping distance are presented. The main feature is that the electrons travel the main part of the path in a radial focusing field, which provides beam transport. During the motion of an electron beam, multiple collisions occur between the particles of the beam and air molecules. As a result of these collisions, the radius of the electron beam increases. To determine the increase in the beam radius, the external fields under which the electron moves between two neighboring collisions should be taken into account. Since electrons collude with gas molecules randomly, the root-mean-square radial deviation of electrons from the accelerator axis was calculated. Transverse dimension of the electron beam and characteristics of the tracking field are considered. A twofold increase in the permissible root-mean-square deviation is shown to lead to a significant (by a factor of 16) decrease in the required microwave power of the tracking wave. A scheme for obtaining electron beams (and the corresponding bremsstrahlung flow) is theoretically substantiated.</p>","PeriodicalId":730,"journal":{"name":"Physics of Particles and Nuclei Letters","volume":null,"pages":null},"PeriodicalIF":0.4000,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Use of Bremsstrahlung of a Linear Electron Accelerator for Processing Large Objects\",\"authors\":\"G. O. Buyanov\",\"doi\":\"10.1134/S1547477124010047\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The results of a numerical analysis of the dynamics of electrons in a beam injected into air with an energy of several tens of MeV and focused by the field of an accompanying electromagnetic radiation (EMR) wave at a full stopping distance are presented. The main feature is that the electrons travel the main part of the path in a radial focusing field, which provides beam transport. During the motion of an electron beam, multiple collisions occur between the particles of the beam and air molecules. As a result of these collisions, the radius of the electron beam increases. To determine the increase in the beam radius, the external fields under which the electron moves between two neighboring collisions should be taken into account. Since electrons collude with gas molecules randomly, the root-mean-square radial deviation of electrons from the accelerator axis was calculated. Transverse dimension of the electron beam and characteristics of the tracking field are considered. A twofold increase in the permissible root-mean-square deviation is shown to lead to a significant (by a factor of 16) decrease in the required microwave power of the tracking wave. A scheme for obtaining electron beams (and the corresponding bremsstrahlung flow) is theoretically substantiated.</p>\",\"PeriodicalId\":730,\"journal\":{\"name\":\"Physics of Particles and Nuclei Letters\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.4000,\"publicationDate\":\"2024-03-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics of Particles and Nuclei Letters\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1547477124010047\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, PARTICLES & FIELDS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Particles and Nuclei Letters","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1547477124010047","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, PARTICLES & FIELDS","Score":null,"Total":0}
Use of Bremsstrahlung of a Linear Electron Accelerator for Processing Large Objects
The results of a numerical analysis of the dynamics of electrons in a beam injected into air with an energy of several tens of MeV and focused by the field of an accompanying electromagnetic radiation (EMR) wave at a full stopping distance are presented. The main feature is that the electrons travel the main part of the path in a radial focusing field, which provides beam transport. During the motion of an electron beam, multiple collisions occur between the particles of the beam and air molecules. As a result of these collisions, the radius of the electron beam increases. To determine the increase in the beam radius, the external fields under which the electron moves between two neighboring collisions should be taken into account. Since electrons collude with gas molecules randomly, the root-mean-square radial deviation of electrons from the accelerator axis was calculated. Transverse dimension of the electron beam and characteristics of the tracking field are considered. A twofold increase in the permissible root-mean-square deviation is shown to lead to a significant (by a factor of 16) decrease in the required microwave power of the tracking wave. A scheme for obtaining electron beams (and the corresponding bremsstrahlung flow) is theoretically substantiated.
期刊介绍:
The journal Physics of Particles and Nuclei Letters, brief name Particles and Nuclei Letters, publishes the articles with results of the original theoretical, experimental, scientific-technical, methodological and applied research. Subject matter of articles covers: theoretical physics, elementary particle physics, relativistic nuclear physics, nuclear physics and related problems in other branches of physics, neutron physics, condensed matter physics, physics and engineering at low temperatures, physics and engineering of accelerators, physical experimental instruments and methods, physical computation experiments, applied research in these branches of physics and radiology, ecology and nuclear medicine.