Preliminary Measurement of Space Charge Neutralization Level for Proton Beam

CORC > 近代物理研究所 > 中国科学院近代物理研究所 > 兰州重离子研究装置

	Preliminary Measurement of Space Charge Neutralization Level for Proton Beam
	Zhang XZ(张雪珍)2 ; Sun LT(孙良亭)2 ; Yang Y(杨尧)2; Wu Q(武启)2 ; Tan B(谭彪)1; 谭彪, 中国科学技术大学核科学技术学院, 合肥, 安徽 230027, 中国.; Zhao HW(赵红卫)1
刊名	Nuclear Physics Review
	2016
卷号	33 页码:36-40
关键词	Space Charge Effect Neutralization Level Three-grid Energy Analyzer
其他题名	低能强流质子束空间电荷补偿度研究
英文摘要	For high-intensity low-energy ion beams, space charge effect is a main cause of beam divergence and emittance growth. Fortunately, residual gas molecules in the drift space tend to be ionized and neutralize the beam space charge spontaneously. The level of Space Charge Neutralization (SCN) is measured through the detection of created secondary ion energy distribution in the beam region. A so-called non-intereeptive Three-grid Energy Analyzer (TEA) has been designed and manufactured at Institute of Modern Physics, Chinese Academy of Sciences (IMP). This paper will present the details of the TEA detector and the application to diagnose proton beam SCN level in the Low Energy Beam Transport (LEBT) line. As a preliminary result, for an 18.5 mA proton beam a best compensating point appears at the vacuum pressure of 1.5 * 10~(-3) Pa. And the neutralization level is advanced with the growth of beam current in a constant vacuum pressure.
语种	中文
内容类型	期刊论文
源URL	[http://ir.impcas.ac.cn/handle/113462/23570]
专题	近代物理研究所_兰州重离子研究装置
通讯作者	谭彪, 中国科学技术大学核科学技术学院, 合肥, 安徽 230027, 中国.
作者单位	1.School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230027, China. 2.中国科学院近代物理研究所
推荐引用方式 GB/T 7714	Zhang XZ,Sun LT,Yang Y,et al. Preliminary Measurement of Space Charge Neutralization Level for Proton Beam[J]. Nuclear Physics Review,2016,33:36-40.
APA	Zhang XZ.,Sun LT.,Yang Y.,Wu Q.,Tan B.,...&Zhao HW.(2016).Preliminary Measurement of Space Charge Neutralization Level for Proton Beam.Nuclear Physics Review,33,36-40.
MLA	Zhang XZ,et al."Preliminary Measurement of Space Charge Neutralization Level for Proton Beam".Nuclear Physics Review 33(2016):36-40.