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A drift multiwire proportional counter for cosmic soft X-ray imagingMultiwire proportional counters with 1 micrometer polypropylene windows, of dimensions 75 mm x 75 mm and 100 mm x 100 mm, have been built to map soft cosmic X-rays. The counters are constructed with a large drift region which makes it possible to use the center-of-gravity technique to improve the counter's efficiency and position resolution. Using 330 torr of propane as the gas fill and an anode plane composed of 20 micrometer diameter, gold-plated tungsten wire spaced 1mm apart, a position resolution of better than 280 micrometers (FWHM) in two orthogonal directions at an X-ray energy of 0.94 keV was achieved.
Document ID
19790044889
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Reid, P. B.
(Columbia Univ. New York, NY, United States)
Ku, W. H.-M.
(Columbia Univ. New York, NY, United States)
Long, K. S.
(Columbia Univ. New York, NY, United States)
Novick, R.
(Columbia Univ. New York, NY, United States)
Pisarski, R. L.
(Columbia University New York, N.Y., United States)
Date Acquired
August 9, 2013
Publication Date
February 1, 1979
Subject Category
Instrumentation And Photography
Accession Number
79A28902
Funding Number(s)
CONTRACT_GRANT: NGR-33-008-102
Distribution Limits
Public
Copyright
Other

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