Reduction of Beam Current Noise in the FNAL Magnetron Ion Source

被引：3
|
作者：
Bollinger, D. S. [1 ]
Karns, P. R. [1 ]
Tan, C. Y. [1 ]
机构：
[1] Fermilab Natl Accelerator Lab, Proton Source Dept, Batavia, IL 60510 USA
来源：
FOURTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2014) | 2015年 / 1655卷
关键词：
D O I：
10.1063/1.4916482
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The new FNAL Injector Line with a circular dimple magnetron ion source has been operational since December of 2012. Since the new injector came on line there have been variations in the H-beam current flattop observed near the downstream end of the Linac. Several different cathode geometries including a hollow cathode suggested by Dudnikov [1] were tried. Previous studies also showed that different mixtures of hydrogen and nitrogen had an effect on beam current noise [2]. We expanded on those studies by trying mixtures ranging from (0.25% nitrogen, 99.75% hydrogen) to (3% nitrogen, 97% hydrogen). The results of these studies in our test stand will be presented in this paper.
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页数：7
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