Potential and Kinetic Electron Emissions from HOPG Surface Irradiated by Highly Charged Xenon and Neon Ions  

作　　者：WANG Yu-Yu ZHAO Yong-Tao SUN Jian-Rong LI De-Hui QAYYUM Abdul LI Jin-Yu WANG Ping-Zhi XIAO Guo-Qing 王瑜玉;赵永涛;孙建荣;李德慧;QAYYUM Abdul;李锦钰;王平志;肖国青(Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000;Graduate University of the Chinese Academy of Sciences,Beijing 100049;Physics Division,Pakistan Institute of Nuclear Science and Technology,P.O.Nilore,Islamabad,Pakistan)

机构地区：[1]Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000 [2]Graduate University of the Chinese Academy of Sciences,Beijing 100049 [3]Physics Division,Pakistan Institute of Nuclear Science and Technology,P.O.Nilore,Islamabad,Pakistan

出　　处：《Chinese Physics Letters》2011年第5期96-98,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10805063 and 10905079;National Basic Research Program of China under Grant No 2010CB832902.

摘　　要：Highly charged^(129)Xe^(q+)(q=10-30)and^(40)Ne^(q+)(q=4-8)ion-induced secondary electron emissions on the surface of highly oriented pyrolytic graphite(HOPG)are reported.The total secondary electron yield is measured as a function of the potential energy of incident ions.The experimental data are used to separate contributions of kinetic and potential electron yields.Our results show that about 4.5%and 13.2%of ion's potential energies are consumed in potential electron emission due to different Xe^(q+)-HOPG and Ne^(q+)-HOPG combinations.A simple formula is introduced to estimate the fraction of ion's potential energy for potential electron emission.

关 键 词：HIGHLY POTENTIAL Electron 

分 类 号：O57[理学—粒子物理与原子核物理]