| X-ray spectra induced by ~(129)Xe~(q+) impacting the metal surface |
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| 作者姓名： | ZHANG XiaoAn XIAO GuoQing YANG ZhiHu CHEN XiMeng ZHAO YongTao LI FuLi WANG Li CUI Ying ZHANG HongQiang &ZHAN WenLong Institute of Modern Physics Chinese Academy of Sciences Lanzhou China |
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| 作者单位： | ZHANG XiaoAn 1，2，XIAO GuoQing 1，YANG ZhiHu 1，CHEN XiMeng 3，ZHAO YongTao 1，LI FuLi 4，WANG Li 1，2，CUI Ying 3，ZHANG HongQiang 3 &ZHAN WenLong 1 1Institute of Modern Physics，Chinese Academy of Sciences，Lanzhou 730000，China; 2Department of Physics，Xianyang Normal University，Xianyang 712000，China; 3Department of Modern Physics，Lanzhou University，Lanzhou 730000，China; 4Department of Applied Physics，Xi’an Jiaotong University，Xi’an 710049，China |
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| 基金项目： | the National Natural Science Foundation of China(Grant Nos.10574132,10274088 and 10405025)，the Talent Introduction Project ofXianyang Normal University(Grant No.05XSYK103)，the Education Commission Foundation of Shaanxi Province(Grant No.04JK300) |
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| 摘 要： | Using the slow highly charged ions 129 Xe q+ (q=25,26,27;initial kinetic T0≤4.65 keV/a.u.)to impact Au surface,the Au atomic Mαcharacteristic X-ray spectrum is induced.The result shows that as long as the charge state of projectile is high enough,the heavy atomic characteristic X-ray can be effectively excited even though the incident beam is very weak(nA magnitude),and the X-ray yield per ion is in the order of 10-8and increases with the kinetic energy and potential energy of projectile.By measuring the Au Mα-X-ray spectra,Au atomic N-level lifetime is estimated at about 1.33×10-18s based on Heisenberg uncertainty relation.
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X-ray spectra induced by ~(129)Xe~(q+) impacting the metal surface |
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| Abstract: | |
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| Keywords: | slow highly charged ions characteristic X-ray level lifetime |
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