Experimental study on electron detachment cross sections of Cl– in collisions with inert gas atoms

2020 ◽  
Vol 98 (3) ◽  
pp. 287-290
Author(s):  
Mingmin Luo ◽  
Yujia Zhai ◽  
Guannan Guo ◽  
Xuemei Zhang

The single-electron and double-electron detachment cross sections of Cl– in collision with inert gas atoms (He–Xe) have been measured by the growth rate method. The incident negative ions’ energies are from 5 to 30 keV. It is found that the single-electron detachment cross sections become greater and greater when the target atoms change from helium to xenon. However, double-electron detachment cross sections show a more complicated relationship with the target atom changing. The results of this work have been compared with the previous data, and a model based on energy division is used to interpret the trends of cross sections.

2004 ◽  
Vol 21 (8) ◽  
pp. 1512-1514 ◽  
Author(s):  
Huang Yong-Yi ◽  
Zhang Xue-Mei ◽  
Wu Shi-Min ◽  
Li Guang-Wu ◽  
Lu Fu-Quan

1987 ◽  
Vol 65 (7) ◽  
pp. 735-738 ◽  
Author(s):  
B. Hird ◽  
M. Bruyère ◽  
S. Fafard

The atomic cross sections for single and double electron detachment from sulphur negative ions in single collisions with He, Ne, Ar, Kr, and Xe are determined at collision energies between 12.5 and 110 keV.


2013 ◽  
Vol 91 (2) ◽  
pp. 175-179 ◽  
Author(s):  
Zhixian Geng ◽  
Xue Bai ◽  
Baoren Wei ◽  
Xuemei Zhang

The single-electron detachment (SED) cross sections for Co− and Ir− in collision with Ar in the energy region of 10–30 keV are obtained in our laboratory. As our previous paper reported, the SED cross sections have velocity and electron affinity dependency. Using the least-squares method, we analyze the available experimental data of SED cross sections for different negative ions in collision with Ar, and get empirical formulas for different sets of anionic projectiles. For most anionic projectiles, there is a clear correlation between increasing electron affinity and decreasing SED cross sections. Co and Ir, however, are an exception, and we discuss how other physical parameters can be taken into account in the search for general scaling rules for SED cross sections. As the incident velocity increases, the cross section dependence of the anion's electron affinity becomes weaker, and the relation between the SED cross sections and νp is supposed to be [Formula: see text].


2006 ◽  
Vol 23 (9) ◽  
pp. 2418-2421 ◽  
Author(s):  
Yang En-Bo ◽  
Gao Mei ◽  
Huang Yong-Yi ◽  
Wu Shi-Min ◽  
Li Guang-Wu ◽  
...  

2001 ◽  
Vol 18 (10) ◽  
pp. 1344-1345 ◽  
Author(s):  
Li Guang-Wu ◽  
Zhang Xue-Mei ◽  
Wu Shi-Min ◽  
Lu Fu-Quan ◽  
Peng Xian-Jue ◽  
...  

2002 ◽  
Vol 66 (3) ◽  
Author(s):  
Xuemei Zhang ◽  
Shimin Wu ◽  
Weiguo Jin ◽  
Guangwu Li ◽  
Fuquan Lu ◽  
...  

1984 ◽  
Vol 62 (6) ◽  
pp. 544-547 ◽  
Author(s):  
B. Hird ◽  
F. Rahman

The cross section σ−+ for double electron detachment from Cl− in a single collision with a rare gas atom has been measured between 12.5 and 122.5 keV. The magnitude of these cross sections shows that there is a good probability that a second electron will be emitted in collisions that detach one electron, particularly with light targets. The centre-of-mass cross section decreases with increasing target mass, but the variation is less than that for F− and O− double electron detachment cross sections.


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