6533b85afe1ef96bd12b9f0d
RESEARCH PRODUCT
The polarization dependence of x‐ray photoelectron yield of a Au photocathode
Andrea SantangeloPing-shine ShawGiuseppina LarosaS. BivonaShaul HananyRobert NovickG. ManzoY. Liusubject
X-ray photoelectron spectroscopySolid-state physicsChemistryX-rayGeneral Physics and AstronomySynchrotron radiationAtomic physicsPhotoelectric effectPolarization (waves)PhotocathodeModulation factordescription
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%.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1994-10-01 | Journal of Applied Physics |