Analysis of 3 gamma/2 gamma ratio in the measurement of positron annihilation Doppler-broadening spectroscopy

	Analysis of 3 gamma/2 gamma ratio in the measurement of positron annihilation Doppler-broadening spectroscopy
	Zhou CL(周春兰); Zhang TB(张天保); Ma CX(马创新); Zhang ZM(章志明); Cao XZ(曹兴忠); Wang BY(王宝义); Wei L(魏龙); Zhou, CL; Zhang, TB; Ma, CX
刊名	HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
	2006
卷号	30 期号:1 页码:#REF!
关键词	slow positron beam pore positronium mesoporous material film
其他题名	正电子湮没多普勒谱中的3r/2r分析
通讯作者	Wei, L (reprint author), CAS, Inst High Energy Phys, Lab Nucl Analyt Technol, Beijing 100049, Peoples R China.
英文摘要	Doppler-broadening slow positron annihilation spectroscopy is used to measure the concentration, spatial distribution, and size of open-volume defects in surface and interface of material. In this method, the quantitative evaluation is generally carried out with the line shape parameter S and W, but sometimes the parameters provide some finite information. For example, if positron and electron form positronium (include o-Ps and p-Ps) in material, the parameters S and W may provide little information about positronium even complicate the analyses. A parameter I-3 gamma, defined as o-Ps self-decay intensity, was used to analyze Ag layer capped and non-capped silica aerogel by slow positron annihilation Doppler-broadening spectroscopy. The result shows that I-3 gamma can provide more information for researching mesoporous material and nanometer film.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
收录类别	SCI
WOS记录号	WOS:000234460500017
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/226024]
专题	高能物理研究所_多学科研究中心高能物理研究所_核技术应用研究中心
推荐引用方式 GB/T 7714	Zhou CL,Zhang TB,Ma CX,et al. Analysis of 3 gamma/2 gamma ratio in the measurement of positron annihilation Doppler-broadening spectroscopy[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2006,30(1):#REF!.
APA	周春兰.,张天保.,马创新.,章志明.,曹兴忠.,...&Wei, L.(2006).Analysis of 3 gamma/2 gamma ratio in the measurement of positron annihilation Doppler-broadening spectroscopy.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,30(1),#REF!.
MLA	周春兰,et al."Analysis of 3 gamma/2 gamma ratio in the measurement of positron annihilation Doppler-broadening spectroscopy".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 30.1(2006):#REF!.