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Title: Multipurpose monochromator for the basic energy science synchrotron radiation center collaborative access team beam lines at the Advanced Photon Source x-ray facility.

Journal Article · · Rev. Sci. Instrum.
DOI:https://doi.org/10.1063/1.1146455· OSTI ID:937945

The Basic Energy Science Synchrotron Radiation Center (BESSRC) Collaborative Access Team (CAT) will construct x-ray beamlines at two sectors of the Advanced Photon Source facility. In most of the beamlines the first optical element will be a monochromator, so that a standard design for this critical component is advantageous. The monochromator is a double-crystal, fixed exit scheme with a constant offset designed for ultrahigh vacuum windowless operation. In this design, the crystals are mounted on a turntable with the first crystal at the center of rotation. Mechanical linkages are used to correctly position the second crystal and maintain a constant offset. The main drive for the rotary motion is provided by a vacuum compatible Huber goniometer isolated from the main vacuum chamber. The design of the monochromator is such that it can accommodate water, gallium, or liquid-nitrogen cooling for the crystal optics.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
DOE Contract Number:
DE-AC02-06CH11357
OSTI ID:
937945
Report Number(s):
ANL/MSD/JA-24392; RSINAK; TRN: US200905%%714
Journal Information:
Rev. Sci. Instrum., Vol. 66, Issue 2 ; Feb. 1995; ISSN 0034-6748
Country of Publication:
United States
Language:
ENGLISH