Improved monochromator design for high heat load beamlines at CHESS

Journal Article · Sun Sep 01 04:00:00 EDT 1996 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1147257· OSTI ID:434754

Smolenski, K; Pahl, R; Doing, P; Conolly, C; Clark, B; Ehen, J; Shen, Q ^[1]

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1. CHESS, Cornell University, Wilson Laboratory, Ithaca, NY 14853 (United States)

The use of water-cooling channels in silicon x-ray monochromators for the Cornell High Energy Synchrotron Source (CHESS) high power wiggler beamlines has been studied by finite element analysis. The efficiency from channels of different dimensions, ranging from 25 mm to 2 mm width and 5 mm depth, has been calculated. The new crystals are designed to replace the indirect cooled monochromators currently used at CHESS wiggler stations. At typical operation parameters of 150 mA electron current at 5.3 GeV and a gap of 40 mm, the 24-pole wiggler at CHESS provides an x-ray beam with a total power of 2.7 kW at the monochromator. Procedures have been developed for fabrication of internally cooled crystals using a silver-glass dye attach paste. Tests of a new crystal with a conventional x-ray source revealed very small amounts of residual strain. Experiments with synchrotron radiation are scheduled in the near future. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 434754
• Report Number(s): CONF-9510119--
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 9 Vol. 67; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
DESIGN
EFFICIENCY
FINITE ELEMENT METHOD
HEATING LOAD
MONOCHROMATORS
POWER RANGE 01-10 KW
STRAINS
SYNCHROTRON RADIATION SOURCES
X-RAY EQUIPMENT