Triple photoionization of Ne and Ar near threshold

被引：13
作者：
Bluett, JB [1 ]
Lukic, D
Wehlitz, R
机构：
[1] Univ Wisconsin, Ctr Synchrotron Radiat, Stoughton, WI 53589 USA
[2] Inst Phys, YU-11001 Belgrade, Serbia Monteneg, Serbia
来源：
PHYSICAL REVIEW A | 2004年 / 69卷 / 04期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevA.69.042717
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The triple-photoionization cross section of neon and argon near threshold has been investigated by ion time-of-flight spectrometry. We applied the Wannier power law to our data and confirmed the theoretical Wannier exponent in the cases of Ne and Ar. Our data also agree with previous findings regarding the Wannier exponent and its range of validity for Ne. However, the Wannier power law exhibits a much smaller range of validity of 2 eV for Ar compared to 5 eV for Ne. Also, in contrast to a previous experiment, we do not find a "second" power law but a gradual decrease of the exponent above the range of validity of the Wannier power law.
引用
收藏
页码：042717 / 1
页数：7
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