Development of a monochromator system for the APS X-ray BESSRC beamlines

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The authors have designed a double crystal, fixed exit monochromator which allows windowless operation of the APS beamlines. The crystals are mounted on a turntable with the first crystal at the center of rotation. A mechanical linkage is used to correctly position the second crystal and maintain a constant offset. The monochromator is designed with two adjacent vacuum chambers, one containing the drive mechanism, a vacuum compatible Huber goniometer, and another chamber containing a turntable on which the monochromator linkage and crystals are mounted. The small annular opening around a hollow stainless steel shaft which connects the Huber goniometer to ... continued below

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7 p.

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Beno, M.A.; Knapp, G.S. & Ramanathan, M. March 1, 1997.

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Description

The authors have designed a double crystal, fixed exit monochromator which allows windowless operation of the APS beamlines. The crystals are mounted on a turntable with the first crystal at the center of rotation. A mechanical linkage is used to correctly position the second crystal and maintain a constant offset. The monochromator is designed with two adjacent vacuum chambers, one containing the drive mechanism, a vacuum compatible Huber goniometer, and another chamber containing a turntable on which the monochromator linkage and crystals are mounted. The small annular opening around a hollow stainless steel shaft which connects the Huber goniometer to the turntable is the only passage between the two adjacent chambers. The design of the monochromator is such that it can accommodate water, liquid nitrogen or galium cooling for the crystal optics. The basic design for the monochromator linkage mechanism is presented along with details of the monochromator chamber. The results of initial optical tests of the monochromator system using tilt sensors and a precision autocollimator will also be given.

Physical Description

7 p.

Notes

INIS; OSTI as DE97007016

Source

  • SRI `95: synchrotron radiation instrumentation symposium and the 7. users meeting for the advanced photon source (APS), Argonne, IL (United States), 16-20 Oct 1995

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  • Other: DE97007016
  • Report No.: CONF-9510119--42
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 510450
  • Archival Resource Key: ark:/67531/metadc689528

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • March 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Dec. 16, 2015, 12:20 p.m.

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Beno, M.A.; Knapp, G.S. & Ramanathan, M. Development of a monochromator system for the APS X-ray BESSRC beamlines, article, March 1, 1997; Illinois. (digital.library.unt.edu/ark:/67531/metadc689528/: accessed October 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.