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Silicon Detector System for X-Ray Pulse Calorimetry of Laser-Produced Plasmas*

Published online by Cambridge University Press:  06 March 2019

J. H. McQuaid ,
C. E. Violet  and
J. Petruzzi
J. H. McQuaid
Affiliation:
Lawrence Livermore Laboratory, University of California, Livermore, California 94550
C. E. Violet
Affiliation:
Lawrence Livermore Laboratory, University of California, Livermore, California 94550
J. Petruzzi
Affiliation:
Lawrence Livermore Laboratory, University of California, Livermore, California 94550
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Abstract

The instrumentation for measuring x-ray yields from laser produced plasma is described. This new type of calorimeter is composed of a silicon detector, a charge-sensitive preamplifier and an analog-to-digital readout scheme for multiplexing up to ten detector outputs.

X-rays interacting with the detector produce hole-electron pairs in proportion to the total energy lost in the detector (∼1012 eV). In this application the detector can be characterized as a solid-state ionization chamber. The detector signal is coupled to a charge-sensitive preamplifier which generates a voltage pulse proportional to the x-ray energy absorbed. In this way the x-ray energy is measured by “direct conversion” rather than measuring the temperature rise due to an energy flux.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 18: Twenty-Third Annual Conference on Applications of X-ray Analysis, August 7-9, 1974 , 1974 , pp. 213 - 221
Copyright
Copyright © International Centre for Diffraction Data 1974

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Footnotes

*

This work was performed under the auspices of the U.S. Atomic Energy Commission and by the Defense Nuclear Agency.

References

1. Violet, C. E., Petruzzi, J., McQuaid, J. H., Boster, T. A., Richards, L. M., Mead, S. W., Saroyan, R. A., and Swain, J. E., “X-Ray Calorimetry of Laser-Produced Plasmas,” this issue.Google Scholar
2. Slivinsky, V. W., “Superthermal Electron Distributions in Laser-Produced Plasmas,” Lawrence Livermore Laboratory report UCRL-75465 (1974).Google Scholar
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