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A Supported Ultrathin Window for Improved Performance in Gas Flow Proportional Counters

Published online by Cambridge University Press:  06 March 2019

Andrew J. Nelson ,
David Tingey ,
Takashi Shoji  and
Kazuaki Shimizu
Andrew J. Nelson
Affiliation:
Moxtek, Inc. Orem, UT USA 84057
David Tingey
Affiliation:
Brigham Young University, Provo, UT, 84602
Takashi Shoji
Affiliation:
Rigaku Industrial Corporation, Osaka, Japan
Kazuaki Shimizu
Affiliation:
Rigaku Industrial Corporation, Osaka, Japan
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Abstract

Polypropylene windows stretched to 1-1.5 μm in thickness have been traditionally used for soft x-ray detection on gas flow proportional counters. Theoretical calculations show that significant transmission Improvement could result from a thinner window. The trade-offs to ultimate transmission have traditionally been reliability and durability. A 0.3 um window has been fabricated to show significant improvement for light element transmission, A supporting grid was used to back the film and provide additional support and durability to allow for pressure cycling during venting of the spectrometer chamber. Significant transmission improvements were observed for ultra soft x rays in the energy range below 1 KeV.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 39: Forty-Fourth Annual Conference on Applications of X-ray Analysis, July 31 - August 4, 1995 , 1995 , pp. 881 - 884
Copyright
Copyright © International Centre for Diffraction Data 1995

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References

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