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Proceedings Paper

Polarization sensitivity of x-ray photocathodes in the 60-200eV band
Author(s): George W. Fraser; M. D. Pain; James F. Pearson; John Ernest Lees; C. R. Binns; Ping-Shine Shaw; Judith R. Fleischman
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Paper Abstract

In this paper, we briefly describe measurements of the 60 - 200 eV photoemission from Caesium Iodide, Gold, and Aluminum photocathodes made on beamline 6.1 of the SERC Daresbury synchrotron radiation source (SRS). Measurements were made near grazing incidence using both s- (electric vector perpendicular to the plane of incidence) and p- polarized (electric vector parallel to the plane of incidence) radiation. Our data supports the existence of an 'x-ray vectorial effect'--a pronounced linear polarization dependence of the photoyield--observed in earlier experiments at Leicester and Columbia Universities and elsewhere. For CsI, novel measurements are also reported of: radiation damage and annealing, and the temperature dependence of the photoyield.

Paper Details

Date Published: 1 November 1991
PDF: 17 pages
Proc. SPIE 1548, Production and Analysis of Polarized X Rays, (1 November 1991);
Show Author Affiliations
George W. Fraser, Univ. of Leicester (United Kingdom)
M. D. Pain, Univ. of Leicester (United Kingdom)
James F. Pearson, Univ. of Leicester (United Kingdom)
John Ernest Lees, Univ. of Leicester (United Kingdom)
C. R. Binns, Univ. of Leicester (United Kingdom)
Ping-Shine Shaw, Columbia Univ. (United States)
Judith R. Fleischman, Columbia Univ. (United States)

Published in SPIE Proceedings Vol. 1548:
Production and Analysis of Polarized X Rays
D. Peter Siddons, Editor(s)

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