SYMPOSIA PAPER Published: 01 January 1971
STP38569S

Characterization Of Semiconductor X-ray Energy Spectrometers

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The important performance parameters of a semiconductor X-ray energy spectrometer and the standardized techniques for measuring and documenting most of the related specifications are described.

The strong coupling between performance parameters such as energy resolution, detector size (efficiency), count-rate capability, and general spectral integrity (tailing, etc.) is detailed. In particular, the conflict between the need to improve energy resolution by increasing the amplifier shaping time constants (that is, minimizing field-effect transistor noise) and the need to improve count-rate capability by decreasing amplifier pulse shaping time constants are examined thoroughly.

Since, as is shown, most performance parameters can be improved at the expense of other characteristics, the importance of providing enough test data to determine the trade-off cost involved in optimizing a particular variable is emphasized.

Author Information

Walter, FJ
Semiconductor Research and Development, ORTEC, Inc., Oak Ridge, Tenn.
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Details
Developed by Committee: E04
Pages: 82–112
DOI: 10.1520/STP38569S
ISBN-EB: 978-0-8031-5571-8
ISBN-13: 978-0-8031-0070-1