HIGH-RESOLUTION, LARGE-ANGULAR-ACCEPTANCE MONOCHROMATOR FOR HARD X-RAYS

Authors
MOONEY TM TOELLNER T STURHAHN W ALP EE SHASTRI SD
Citation
Tm. Mooney et al., HIGH-RESOLUTION, LARGE-ANGULAR-ACCEPTANCE MONOCHROMATOR FOR HARD X-RAYS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 347(1-3), 1994, pp. 348-351
Citations number
20
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
348 - 351
Database
ISI
SICI code
0168-9002(1994)347:1-3<348:HLMFHX>2.0.ZU;2-6
Abstract
We have constructed the first working model of a novel diffraction geo metry for the high-resolution monochromatization of hard (5-30 keV) sy nchrotron radiation. The monochromator has an energy bandpass of 6.7 m eV FWHM and an angular acceptance of 22 murad (4.5 arcseconds) for 14. 4 keV X rays - an energy resolution DELTAE/E of 4.6 X 10(-7). With a s econd set of crystals, an energy bandpass of 23 meV FWHM and an angula r acceptance of 7 murad was achieved for 23.8 keV photons. The perform ance of the monochromator has been verified, in a nearly ideal measure ment, using nuclear-fluorescent X rays with an energy bandwidth on the order of 10 neV.