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A sagittally focusing double-multilayer monochromator for ultrafast x-ray imaging applications.

Journal Article · · J. Synchrotron Radiat.
The development of a sagittally focusing double-multilayer monochromator is reported, which produces a spatially extended wide-bandpass X-ray beam from an intense synchrotron bending-magnet source at the Advanced Photon Source, for ultrafast X-ray radiography and tomography applications. This monochromator consists of two W/B4C multilayers with a 25 {angstrom} period coated on Si single-crystal substrates. The second multilayer is mounted on a sagittally focusing bender, which can dynamically change the bending radius of the multilayer in order to condense and focus the beam to various points along the beamline. With this new apparatus, it becomes possible to adjust the X-ray beam size to best match the area detector size and the object size to facilitate more efficient data collection using ultrafast X-ray radiography and tomography.
Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
SC; EE
DOE Contract Number:
AC02-06CH11357
OSTI ID:
939312
Report Number(s):
ANL/XSD/JA-50874
Journal Information:
J. Synchrotron Radiat., Journal Name: J. Synchrotron Radiat. Journal Issue: 2007 Vol. 14; ISSN 0909-0495; ISSN JSYRES
Country of Publication:
United States
Language:
ENGLISH

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