The polarization dependence of x-ray photoelectron yield of a Au photocathode

P. S. Shaw, S. Hanany, Y. Liu, R. Novick, G. LaRosa, G. Manzo, A. Santangelo, S. Bivona

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Abstract

We report a measurement of the total photoelectron yield of gold as a function of the incident x-ray polarization. Polarized x rays with energies of 2.5, 2.7, and 4.0 keV were used to excite a gold photocathode at a glancing incidence angle between 5° and 50°. Contrary to a previous report, we found no measurable polarization dependence for all three x-ray energies. We conclude that the modulation factor, i.e., the fractional change of the total yield when the polarization state is varied, is less than 4%.

Original languageEnglish (US)
Pages (from-to)4358-4361
Number of pages4
JournalJournal of Applied Physics
Volume76
Issue number7
DOIs
StatePublished - Dec 1 1994
Externally publishedYes

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    Shaw, P. S., Hanany, S., Liu, Y., Novick, R., LaRosa, G., Manzo, G., Santangelo, A., & Bivona, S. (1994). The polarization dependence of x-ray photoelectron yield of a Au photocathode. Journal of Applied Physics, 76(7), 4358-4361. https://doi.org/10.1063/1.357323