{"title":"重离子束和等离子体与强磁场相互作用增强纵向磁场","authors":"Heng Zhang, Fei-Fei Li, Fang-Ping Wang, Wen-Shan Duan, Sheng Zhang, Liang-Wen Chen","doi":"10.1140/epjd/s10053-024-00922-7","DOIUrl":null,"url":null,"abstract":"<p>The interaction between ion beams and plasma is a fundamental and important physical process, plasma can effectively neutralize the current and charge of ion beam pulses as an ideal medium for its transmission and focusing. The analytical model of short heavy ion beam pulse in cold background plasma under external magnetic field is established. Combined with the experimental parameters, by 2.5D particle-in-cell numerical simulations, the entire transport process of heavy ion beam application strong magnetic fields in plasma is investigated. Our research results indicate that the interaction between short-pulse heavy ion beams and plasma generates a longitudinally induced magnetic field in the same direction as the external magnetic field. Moreover, the electron cyclotron electromagnetic waves of anti-parallel to local magnetic field are excited, and the excitation mechanism is mainly drift instability of electrons beam caused by the heavy ion beam.</p><p>Temporal variations of the longitudinal induced magnetic field Bz in plasma and vacuum regions under different external magnetic fields</p>","PeriodicalId":789,"journal":{"name":"The European Physical Journal D","volume":null,"pages":null},"PeriodicalIF":1.5000,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhancement of longitudinal magnetic field by interaction of heavy ion beams and plasma with strong magnetic field\",\"authors\":\"Heng Zhang, Fei-Fei Li, Fang-Ping Wang, Wen-Shan Duan, Sheng Zhang, Liang-Wen Chen\",\"doi\":\"10.1140/epjd/s10053-024-00922-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The interaction between ion beams and plasma is a fundamental and important physical process, plasma can effectively neutralize the current and charge of ion beam pulses as an ideal medium for its transmission and focusing. The analytical model of short heavy ion beam pulse in cold background plasma under external magnetic field is established. Combined with the experimental parameters, by 2.5D particle-in-cell numerical simulations, the entire transport process of heavy ion beam application strong magnetic fields in plasma is investigated. Our research results indicate that the interaction between short-pulse heavy ion beams and plasma generates a longitudinally induced magnetic field in the same direction as the external magnetic field. Moreover, the electron cyclotron electromagnetic waves of anti-parallel to local magnetic field are excited, and the excitation mechanism is mainly drift instability of electrons beam caused by the heavy ion beam.</p><p>Temporal variations of the longitudinal induced magnetic field Bz in plasma and vacuum regions under different external magnetic fields</p>\",\"PeriodicalId\":789,\"journal\":{\"name\":\"The European Physical Journal D\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-10-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The European Physical Journal D\",\"FirstCategoryId\":\"4\",\"ListUrlMain\":\"https://link.springer.com/article/10.1140/epjd/s10053-024-00922-7\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"OPTICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The European Physical Journal D","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1140/epjd/s10053-024-00922-7","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"OPTICS","Score":null,"Total":0}
Enhancement of longitudinal magnetic field by interaction of heavy ion beams and plasma with strong magnetic field
The interaction between ion beams and plasma is a fundamental and important physical process, plasma can effectively neutralize the current and charge of ion beam pulses as an ideal medium for its transmission and focusing. The analytical model of short heavy ion beam pulse in cold background plasma under external magnetic field is established. Combined with the experimental parameters, by 2.5D particle-in-cell numerical simulations, the entire transport process of heavy ion beam application strong magnetic fields in plasma is investigated. Our research results indicate that the interaction between short-pulse heavy ion beams and plasma generates a longitudinally induced magnetic field in the same direction as the external magnetic field. Moreover, the electron cyclotron electromagnetic waves of anti-parallel to local magnetic field are excited, and the excitation mechanism is mainly drift instability of electrons beam caused by the heavy ion beam.
Temporal variations of the longitudinal induced magnetic field Bz in plasma and vacuum regions under different external magnetic fields
期刊介绍：
The European Physical Journal D (EPJ D) presents new and original research results in:
Atomic Physics;
Molecular Physics and Chemical Physics;
Atomic and Molecular Collisions;
Clusters and Nanostructures;
Plasma Physics;
Laser Cooling and Quantum Gas;
Nonlinear Dynamics;
Optical Physics;
Quantum Optics and Quantum Information;
Ultraintense and Ultrashort Laser Fields.
The range of topics covered in these areas is extensive, from Molecular Interaction and Reactivity to Spectroscopy and Thermodynamics of Clusters, from Atomic Optics to Bose-Einstein Condensation to Femtochemistry.
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