Simulation studies for operating electron beam ion trap at very low energy for disentangling edge plasma spectra
文献类型：期刊论文
| 作者 | Jin, Xuelong; Fei, Zejie; Xiao, Jun; Lu, Di; Hutton, Roger; Zou, Yaming |
| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2012-07-01 |
| 卷号 | 19 |
| ISSN号 | 1070-664X |
| DOI | 10.1063/1.4736855 |
| 文献子类 | Article |
| 英文摘要 | Electron beam ion traps (EBITs) are very useful tools for disentanglement studies of atomic processes in plasmas. In order to assist studies on edge plasma spectroscopic diagnostics, a very low energy EBIT, SH-PermEBIT, has been set up at the Shanghai EBIT lab. In this work, simulation studies for factors which hinder an EBIT to operate at very low electron energies were made based on the Tricomp (Field Precision) codes. Longitudinal, transversal, and total kinetic energy distributions were analyzed for all the electron trajectories. Influences from the electron current and electron energy on the energy depression caused by the space charge are discussed. The simulation results show that although the energy depression is most serious along the center of the electron beam, the electrons in the outer part of the beam are more likely to be lost when an EBIT is running at very low energy. Using the simulation results to guide us, we successfully managed to reach the minimum electron beam energy of 60 eV with a beam transmission above 57% for the SH-PermEBIT. Ar and W spectra were measured from the SH-PermEBIT at the apparent electron beam energies (read from the voltage difference between the electron gun cathode and the central drift tube) of 60 eV and 1200 eV, respectively. The spectra are shown in this paper. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4736855] |
| WOS关键词 | SHANGHAI EBIT ; URANIUM IONS ; SPECTROSCOPY |
| 语种 | 英语 |
| WOS记录号 | WOS:000307422800111 |
| 出版者 | AMER INST PHYSICS |
| 源URL | [http://119.78.100.186/handle/113462/48879]  |
| 专题 | 中国科学院近代物理研究所 |
| 作者单位 | Fudan Univ, Inst Modern Phys, Shanghai EBIT Lab, Shanghai 200433, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Xuelong,Fei, Zejie,Xiao, Jun,et al. Simulation studies for operating electron beam ion trap at very low energy for disentangling edge plasma spectra[J]. PHYSICS OF PLASMAS,2012,19. |
| APA | Jin, Xuelong,Fei, Zejie,Xiao, Jun,Lu, Di,Hutton, Roger,&Zou, Yaming.(2012).Simulation studies for operating electron beam ion trap at very low energy for disentangling edge plasma spectra.PHYSICS OF PLASMAS,19. |
| MLA | Jin, Xuelong,et al."Simulation studies for operating electron beam ion trap at very low energy for disentangling edge plasma spectra".PHYSICS OF PLASMAS 19(2012). |
入库方式： OAI收割
来源：近代物理研究所
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