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Experimental tests of a single-photon calorimeter for X-ray spectroscopyTests have been made of a nondispersive spectroscopic X-ray detector which operates by measuring the temperature rise following absorption of a single photon. Thermal pulses from 6-keV X-rays have been observed, and the different amplitudes resulting from Mn K-alpha and K-beta events have been resolved. This device was assembled to make quantitative tests of theoretical calculations of the properties of such detectors, and its high heat capacity does not allow it to attain the very high resolution predicted for detectors made by more sophisticated, but still straightforward, techniques. Both the measured resolution of 270-eV full width at half maximum and the absolute amplitude of the response are consistent with predictions. Nonthermal effects in the thermistor limit the precision of this comparison to about 30 percent.
Document ID
19840062062
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Mccammon, D.
(Wisconsin, University Madison, WI, United States)
Moseley, S. H.
(Wisconsin Univ. Madison, WI, United States)
Mather, J. C.
(Wisconsin Univ. Madison, WI, United States)
Mushotzky, R. F.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 12, 2013
Publication Date
September 1, 1984
Publication Information
Publication: Journal of Applied Physics
Volume: 56
ISSN: 0021-8979
Subject Category
Instrumentation And Photography
Accession Number
84A44849
Distribution Limits
Public
Copyright
Other

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