Rotating crystal cube as a variable shutter for use with synchrotron radiation.

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Description

A beam chopper together with the temporal structure of x-rays emitted by a synchrotrons storage ring can be utilized to generate x-ray bursts of variable length and time separation. A Si cube, cut for diffraction from the (220) planes, was mounted to a low-speed motor to produce a beam chopper based upon the Darwin width of the crystal. An x-ray pulse, consisting of an envelope of individual pulses characterizing the loading pattern of the storage ring, was transmitted. The width of the transmitted pulse and the time between pulses was varied by varying the rotation frequency of the Si cube. ... continued below

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9 p.

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McPherson, A. July 8, 1998.

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Description

A beam chopper together with the temporal structure of x-rays emitted by a synchrotrons storage ring can be utilized to generate x-ray bursts of variable length and time separation. A Si cube, cut for diffraction from the (220) planes, was mounted to a low-speed motor to produce a beam chopper based upon the Darwin width of the crystal. An x-ray pulse, consisting of an envelope of individual pulses characterizing the loading pattern of the storage ring, was transmitted. The width of the transmitted pulse and the time between pulses was varied by varying the rotation frequency of the Si cube. Pulses as short as {approx} 75 ps or as long as {approx} 4 {micro}s were transmitted with pulse separation spanning from 4 ms to 167 ms.

Physical Description

9 p.

Notes

INIS; OSTI as DE00010730

Medium: P; Size: 9 pages

Source

  • SPIE Conference ''Time Structure of X-Ray Sources and Its Applications'', San Diego, CA (US), 07/19/1998--07/24/1998

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  • Report No.: ANL/XFD/CP-96074
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 10730
  • Archival Resource Key: ark:/67531/metadc628279

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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.

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  • July 8, 1998

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 11, 2017, 9:05 p.m.

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McPherson, A. Rotating crystal cube as a variable shutter for use with synchrotron radiation., article, July 8, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc628279/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.