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A large area imaging gas scintillation proportional counter for use in X-ray astronomyA large area (200 sq cm), broad bandwidth (0.1-70 keV), imaging gas scintillation proportional counter (IGSPC) has been constructed for use in X-ray astronomy. The IGSPC consists of a high pressure xenon gas scintillation proportional counter (GSPC) coupled to a multi-wire proportional counter (MWPC) via a calcium fluoride window. THe MWPC, filled with a mixture of argon, methane, and tetrakis (dimethylamino) ethylene, detects the UV photons emitted by the xenon gas in the GSPC. The detector has a measured energy resolution of 8.0 percent (FWHM) and 4.3 percent (FWHM) at 5.9 keV and 22.1 keV, respectively. The predicted spatial resolution of the detector is less than 1 mm (FWHM) between 3-22 keV and 37-60 keV. A method to determine the three-dimensional location of detected X-rays is described. In addition, a combination of discrimination schemes designed to reduce the non-X-ray background in the IGSPC by more than two orders of magnitude is discussed.
Document ID
19850043260
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ku, W. H.-M.
(Columbia Univ. New York, NY, United States)
Lum, K. S.
(Columbia Univ. New York, NY, United States)
Vartanian, M. H.
(Columbia University New York, NY, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1984
Subject Category
Astronomy
Meeting Information
Meeting: Instrumentation in astronomy V
Location: London
Start Date: September 7, 1983
End Date: September 9, 1983
Sponsors: SPIE and ISOE
Accession Number
85A25411
Funding Number(s)
CONTRACT_GRANT: NAG5-618
Distribution Limits
Public
Copyright
Other

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