GERMANIUM X-RAY PHASE PLATES FOR THE PRODUCTION OF CIRCULARLY-POLARIZED X-RAYS

Authors
YAHNKE CJ SRAJER G HAEFFNER DR MILLS DM ASSOUFID L
Citation
Cj. Yahnke et al., GERMANIUM X-RAY PHASE PLATES FOR THE PRODUCTION OF CIRCULARLY-POLARIZED X-RAYS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 347(1-3), 1994, pp. 128-133
Citations number
10
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
347
Issue
1-3
Year of publication
1994
Pages
128 - 133
Database
ISI
SICI code
0168-9002(1994)347:1-3<128:GXPPFT>2.0.ZU;2-Y
Abstract
We have constructed an X-ray phase plate to produce linearly and circu larly polarized X-rays at discrete energies between 20 keV and 88 keV. The plate is a monolithic two-crystal design, constructed from german ium. We have measured the degree of circular polarization at 65 keV to be 90% +/- 4%, which is significantly better than that produced by si licon phase plates. This radiation was used to measure the magnetic Co mpton profile for Fe, which was found to be in good agreement with the ory and previous work. The underlying X-ray optics and the characteriz ation of the device between 62 keV and 93 keV at the Cornell High Ener gy Synchrotron Source are presented.