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

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.
Authors:
; ; ; ; ; ; ;  [1]
  1. Institute of Atomic and Molecular Physics, Anhui Normal University, Wuhu, Anhui, 241000 (China)
Publication Date:
OSTI Identifier:
22299619
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 4; Journal Issue: 10; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 36 MATERIALS SCIENCE; COBALT; CROSS SECTIONS; EVAPORATION; EXCITED STATES; MOLECULAR BEAMS; PARITY; PHOTOIONIZATION; RESONANCE