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Proceedings Paper

Wavelength-Dependent Photoionization Cross Section Of Se(1S) In The Vacuum Ultraviolet (VUV)
Author(s): K. T. V. Grattan; M. R. Hutchinson; E. S. Theocharous
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Paper Abstract

The photoionization cross section of excited atomic selenium, Se(1S0), obtained by photodissociation of 0CSe, has been measured in the wavelength region 170 - 175 nm using a tunable xenon laser. A minimum value, at 172 nm, was found to be 1.2 x 10-20cm2, approximately ten times less than a recently calculated value. The photodissociation cross section for OCSe, at the same wavelength, was found to be 0.8 x 10-16 cm2, in good agreement with published work. The effect of an electron cooling buffer gas upon the electron production from excited selenium was also investigated.

Paper Details

Date Published: 15 May 1981
PDF: 5 pages
Proc. SPIE 0236, 1980 European Conf on Optical Systems and Applications, (15 May 1981); doi: 10.1117/12.959027
Show Author Affiliations
K. T. V. Grattan, Imperial College (United Kingom)
M. R. Hutchinson, Imperial College (United Kingom)
E. S. Theocharous, Imperial College (United Kingom)


Published in SPIE Proceedings Vol. 0236:
1980 European Conf on Optical Systems and Applications
D. J. Kroon, Editor(s)

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