Observation of Spin-Conversion of Positronium in Zeolite
CHEN Zhiquan, WANG Shaojie (S. J. Wang)
Department of Physics, Wuhan University, Wuhan 430072
Observation of Spin-Conversion of Positronium in Zeolite
CHEN Zhiquan;WANG Shaojie (S. J. Wang)
Department of Physics, Wuhan University, Wuhan 430072
关键词 ：
78.70.Bj ,
82.65.-i
Abstract ： We have measured the positron lifetime spectra of zeolite 13X as a function of exposed air pressure. Four lifetime components have been obtained and properly assigned. The longer lifetimes τ3 and τ4 , are attributed to ortho-positronium annihilating in the β-cage and supercage in zeolite respectively. More interesting observation is that the positron annihilation parameters vary significantly with the exposed air pressure. It is interpreted in terms of the spin-conversion of positronium with paramagnetic oxygen.
Key words ：
78.70.Bj
82.65.-i
出版日期: 1993-11-01
引用本文:
CHEN Zhiquan;WANG Shaojie (S. J. Wang). Observation of Spin-Conversion of Positronium in Zeolite[J]. 中国物理快报, 1993, 10(11): 684-687.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1993/V10/I11/684
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1993, Vol. 10 
