Multichannel CdZnTe Gamma Ray Spectrometer

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Description

A 3 cm{sup 3} multichannel gamma spectrometer for DOE applications is under development by Digirad Corporation. The device is based on a position sensitive detector packaged in a compact multi-chip module (MCM) with integrated readout circuitry. The modular, multichannel design will enable identification and quantitative analysis of radionuclides in extended sources, or sources containing low levels of activity. The MCM approach has the advantages that the modules are designed for imaging applications, and the sensitivity can be arbitrarily increased by increasing the number of pixels, i.e. adding modules to the instrument. For a high sensitivity probe, the outputs for each ... continued below

Physical Description

11 p.

Creation Information

Doty, F. P.; Lingren, C. L.; Apotovsky, B. A.; Brunsch, J.; Butler, J. F.; Collins, T. et al. July 22, 1998.

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Description

A 3 cm{sup 3} multichannel gamma spectrometer for DOE applications is under development by Digirad Corporation. The device is based on a position sensitive detector packaged in a compact multi-chip module (MCM) with integrated readout circuitry. The modular, multichannel design will enable identification and quantitative analysis of radionuclides in extended sources, or sources containing low levels of activity. The MCM approach has the advantages that the modules are designed for imaging applications, and the sensitivity can be arbitrarily increased by increasing the number of pixels, i.e. adding modules to the instrument. For a high sensitivity probe, the outputs for each pixel can be corrected for gain and offset variations, and summed digitally. Single pixel results obtained with discrete low noise readout indicate energy resolution of 3 keV can be approached with currently available CdZnTe. The energy resolution demonstrated to date with MCMs for 511 keV gamma rays is 10 keV.

Physical Description

11 p.

Notes

INIS; OSTI as DE00756902

Medium: P; Size: 11 pages

Source

  • 1998 Symposium on Radiation Measurements and Applications, San Diego, CA (US), 07/22/1998--07/23/1998

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  • Report No.: SAND2000-8615c
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 756902
  • Archival Resource Key: ark:/67531/metadc710512

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  • July 22, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 6, 2017, 7:32 p.m.

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Doty, F. P.; Lingren, C. L.; Apotovsky, B. A.; Brunsch, J.; Butler, J. F.; Collins, T. et al. Multichannel CdZnTe Gamma Ray Spectrometer, article, July 22, 1998; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc710512/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.