Single-Electron Detachment for Transition Elements Cr<sup>-</sup> and Fe<sup>-</sup> in Collision with He

Chin. Phys. Lett.

2004, Vol. 21

Issue (6): 1055-1056 DOI:

Original Articles

Single-Electron Detachment for Transition Elements Cr^- and Fe^- in Collision with He

WU Shi-Min¹;HUANG Yong-Yi¹;ZHANG Xue-Mei¹;LI Guang-Wu²;LU Fu-Quan¹;YANG Fu-Jia¹

¹Applied Ion Beam Laboratory, Institute of Modern Physics, Fudan University, Shanghai 200433 ²Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 610003

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WU Shi-Min, HUANG Yong-Yi, ZHANG Xue-Mei et al 2004 Chin. Phys. Lett. 21 1055-1056

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Abstract Single-electron detachment (SED) cross-sections for Cr^- and Fe^- in collisions with He have been obtained in the energy region of 10-30keV for the first time. In the present energy range the magnitude of the Cr^- + He SED cross-sections is close to that of Fe^- + He, although the electron affinity of Fe^- (0.16 eV) and Cr^- (0.668 eV) are different. It is found that the cross-sections for Cr^- and Fe^- in collisions with He exhibit nearly the same dependence on anions impact velocity.

Keywords: 34.70.+e

Published: 01 June 2004

PACS:

34.70.+e

(Charge transfer)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2004/V21/I6/01055

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	WU Shi-Min
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	LI Guang-Wu
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	YANG Fu-Jia

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