Polarization sensitivity of x-ray photocathodes in the 60-200eV band

Details Polarization sensitivity of x-ray photocathodes in the 60-200eV band Polarization sensitivity of x-ray photocathodes in the 60-200eV band

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991spie.1548..132f&link_type=abstract

Proc. SPIE Vol. 1548, p. 132-148, Production and Analysis of Polarized X Rays, D. P. Siddons; Ed.

Physics

1

Scientific paper

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.

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