Characteristics of the Shanghai high-temperature superconducting electron-beam ion trap and studies of the space-charge effect under ultralow-energy operating conditions
Characteristics of the Shanghai high-temperature superconducting electron-beam ion trap and studies of the space-charge effect under ultralow-energy operating conditions
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上海高温超导电子束离子阱特性及超低能运行条件下空间电荷效应研究
DOI:
10.1063/1.5004426
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发表时间:
2017-09
影响因子:
2.2
通讯作者:
Y. Zou
中科院分区:
文献类型:
--
作者:
B.Tu;Q. F. Lu;T. Cheng;Y. Yang;K. Yao;Y. Shen;D. Lu;J. Xiao;R. Hutton;Y. Zou
A high-temperature superconducting electron-beam ion trap (EBIT) has been set up at the Shanghai EBIT Laboratory for spectroscopic studies of low-charge-state ions. In the study reported here, beam trajectory simulations are implemented in order to provide guidance for the operation of this EBIT under ultralow-energy conditions, which has been successfully achieved with a full-transmission electron-beam current of 1–8.7 mA at a nominal electron energy of 30–120 eV. The space-charge effect is studied through both simulations and experiments. A modified iterative formula is proposed to estimate the space-charge potential of the electrons and shows very good agreement with the simulation results. In addition, space-charge compensation by trapped ions is found in extreme ultraviolet spectroscopic measurements of carbon ions and is studied through simulation of ion behavior in the EBIT. Based on the simulation results, the ion-cloud radius, ion density, and electron–ion overlap are obtained.
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DOI:
10.1103/physreva.43.4861
发表时间:
1991-05
期刊:
Physical review. A, Atomic, molecular, and optical physics
影响因子:
--
作者:
B. Penetrante;JN Bardsley;D. DeWitt;M. W. Clark;D. H. Schneider
通讯作者:
B. Penetrante;JN Bardsley;D. DeWitt;M. W. Clark;D. H. Schneider
DOI:
10.1063/1.4826687
发表时间:
2014-02
期刊:
The Review of scientific instruments
影响因子:
--
作者:
G. Zschornack;J. König;M. Schmidt;A. Thorn
通讯作者:
G. Zschornack;J. König;M. Schmidt;A. Thorn
影响因子:
0.9
作者:
R. J. Allen
通讯作者:
R. J. Allen
影响因子:
0.8
作者:
Tetsuya Watanabe
通讯作者:
Tetsuya Watanabe
DOI:
10.1063/1.4876597
发表时间:
2014
期刊:
Review of Scientific Instruments
影响因子:
--
作者:
Zhan Shi;Ruifeng Zhao;Wenxian Li;BingshengTu;Yang Yang;Jun Xiao;Sven Huldt;Roger Hutton;Yaming Zou
通讯作者:
Yaming Zou