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Citation: Guo Jing-Zhong, Gu Yue-Shu, Liu Chuan-Pu, Li Bao-Zhong, Yin Yong-Jia, Cai Ji-Ye, Cao De-Zhao. Study on the Structure Defect of Electrodeposited Tin Using Positron Annihilation Lifetime Spectroscopy[J]. Acta Physico-Chimica Sinica, ;1991, 7(02): 211-214. doi: 10.3866/PKU.WHXB19910216 shu

Study on the Structure Defect of Electrodeposited Tin Using Positron Annihilation Lifetime Spectroscopy

1.
Chemistry Department, Xiamen University, Xiamen 361005; Physics Department, Xiamen University

Received Date: 4 September 1989
Available Online: 15 April 1991

The excited fragments CH(A), CH(B), CH(C) etc. were produced by the bombardment of He(2~3S) with CH_nX_(4-n)(X=Cl, Br, I). Based on the CH(A-X) emission spectra, the rotational populations can be interpretated in terms of Boltzmann distribution. The effective rotational temperature for CH(A,v'=0) produced from various methyl halides are nearly the some. Experiments under various pressure and calculation of collisional dynamics showed that the distributions are approximate to the nascent distributions.
- He; Methyl halides; Rotational distribution
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