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Proceedings Paper

Cryogenic cooling program in high heat load optics at the Advanced Photon Source
Author(s): Carey Shawn Rogers
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Paper Abstract

This paper describes some of the aspects of the cryogenic optics program at the Advanced Photon Source (APS). A liquid-nitrogen-cooled, high-vacuum, double crystal monochromator is being fabricated at Argonne National Laboratory (ANL). A pumping system capable of delivering a variable flow rate of up to 10 gallons per minute of pressurized liquid nitrogen and removing 5 kilowatts of x-ray power is also being constructed. This specialized pumping system and monochromator will be used to test the viability of cryogenically cooled, high- heat-load synchrotron optics. It has been determined that heat transfer enhancement will be required for optics used with APS insertion devices. An analysis of a porous-matrix-enhanced monochromator crystal is presented. For the particular case investigated, a heat transfer enhancement factor of 5 to 6 was calculated.

Paper Details

Date Published: 12 November 1993
PDF: 11 pages
Proc. SPIE 1997, High Heat Flux Engineering II, (12 November 1993); doi: 10.1117/12.163804
Show Author Affiliations
Carey Shawn Rogers, Argonne National Lab. (United States)

Published in SPIE Proceedings Vol. 1997:
High Heat Flux Engineering II
Ali M. Khounsary, Editor(s)

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