Email RIS file
Bookmark
Report an Issue

Further tests on liquid-nitrogen-cooled, thin silicon-crystal monochromators using a focused wiggler synchrotron beam [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2000.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
7 pages : digital, PDF file
Additional Creators
Argonne National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Free-to-read Unrestricted online access
Summary
A newly designed cryogenically cooled, thin Si crystal monochromator was tested at the European Synchrotrons Radiation Facility (ESRF) beamline BL3. It exhibited less than 1 arcsec of thermal strain up to a maximum incident power of 186 W and average power density of 521 W/mm². Data were collected for the thin (0.7 mm) portion of the crystal and for the thick (>25 mm) part. Rocking curves were measured as a function of incident power. With a low power beam, the Si(333) rocking curve at 30 keV for the thin and thick sections was < 1 arcsec FWHM at room temperature. The rocking curve of the thin section increased to 2.0 arcsec when cooled to 78 K, while the thick part was unaffected by the reduction in temperature. The rocking curve of the this section broadened to 2.5 arcsec FWHM and that of the thick section broadened to 1.7 arcsec at the highest incident power. The proven range of performance for this monochromator has been extended to the power density, but not the absorbed power, expected for the Advanced Photon Source (APS) undulator A in closed-gap operation (first harmonic at 3.27 kev) at a storage-ring current of 300 mA.
Report Numbers
E 1.99:anl/msd/cp-101833
anl/msd/cp-101833
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
05/09/2000.
"anl/msd/cp-101833"
Meeting on Synchrotron Radiation Instrumentation, Symposium Commemorating the Centennial of the Discovery of X-rays and the 7th Users Meeting for the Advanced Photon Source, Argonne, IL (US), 10/16/1995--10/20/1995.
Knapp, G. S.; Rogers, C. S.; Mills, D. M.; Yamaoka, H.; Freund, A.; Hanfland, M.; Fernandez, P. B.; Wulff, M.; Holmberg, J.; Rossat, M.
Funding Information
W-31109-ENG-38
View MARC record | catkey: 14687494