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Photoionization cross section measurements of the excited states of cobalt in the near-threshold region

Authors :
Xianfeng Zheng
Xiaoyu Zhou
Zaiqi Cheng
Dandan Jia
Zehua Qu
Guanxin Yao
Xianyi Zhang
Zhifeng Cui
Source :
AIP Advances, Vol 4, Iss 10, Pp 107120-107120-10 (2014)
Publication Year :
2014
Publisher :
AIP Publishing LLC, 2014.

Abstract

We present measurements of photoionization cross-sections of the excited states of cobalt using a two-color, two-step resonance ionization technique in conjunction with a molecular beam time of flight (TOF) mass spectrometer. The atoms were produced by the laser vaporization of a cobalt rod, coupled with a supersonic gas jet. The absolute photoionization cross-sections at threshold and near-threshold regions (0-1.2 eV) were measured, and the measured values ranged from 4.2±0.7 Mb to 10.5±1.8 Mb. The lifetimes of four odd parity energy levels are reported for the first time.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
21583226
Volume :
4
Issue :
10
Database :
Directory of Open Access Journals
Journal :
AIP Advances
Publication Type :
Academic Journal
Accession number :
edsdoj.53e9e728cb86457bb743584e352af076
Document Type :
article
Full Text :
https://doi.org/10.1063/1.4898326