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Thermomechanical analysis of the white-beam slits for a wiggler/undulator beamline at the Advanced Photon Source

Journal Article · · Review of Scientific Instruments; (United States)
DOI:https://doi.org/10.1063/1.1145802· OSTI ID:6865342
; ; ; ;  [1]
  1. Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)
A set of precision, vertical, white-beam slits has been designed for an undulator/wiggler beamline at the Advanced Photon Source (APS). The slit, a knife-edge-type precision device, is required to have very small thermal distortion during operation with beam. The traditional slit consists of a cooling block and an OFHC cooling channel inside the block. The design consists of one large block and an OFHC cooling tube (filled with copper mesh) brazed inside the large block. This design will accommodate the x-ray source from both undulators and wigglers. Due to the powerful x-ray heat flux coming from APS Undulator A, it is an exceedingly difficult problem to reduce the thermal distortion to less than 50 [mu]m as required by some users.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
6865342
Journal Information:
Review of Scientific Instruments; (United States), Journal Name: Review of Scientific Instruments; (United States) Vol. 66:2; ISSN 0034-6748; ISSN RSINAK
Country of Publication:
United States
Language:
English