Method and circuit for stabilizing conversion gain of radiation

Details Method and circuit for stabilizing conversion gain of radiation Method and circuit for stabilizing conversion gain of radiation

1983-02-02

1986-04-15

Wise, Edward J.

Boots, shoes, and leggings

364527, 250363R, 2502521, G01T 120, G01D 1800

Patent

active

045831874

ABSTRACT:
A method and a circuit are provided for tuning or calibrating the gain of the radiation detectors of a radiation detection system. For each radiation detector tuning point the energy map status is measured in parallel. Thereby an energy response vector is obtained, which is multiplied with a predetermined deconvolution matrix. The deconvolution matrix is the inversion of a contribution matrix containing matrix elements C.sub.ij, each such matrix element C.sub.ij of said contribution matrix representing the relative contribution level of a radiation detector j of said detection system for a point radiation source placed at a location i. Thus a calculated gain vector is obtained with respect to which the gains of the radiation detectors are adjusted such that an ideal gain vector is obtained.

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patent: 4323977 (1982-04-01), Arseneau
"Stabilizing Scintillation Spectrometers with Counting-Rate-Difference Feedback", by H. de Waard, Nucleonics, vol. 13, No. 7, Jul. 1955, 36-41.
"Direct Current Stabilization of Scintillation Counters Used with Pulsed Accelerators", by F. P. G. Valckx, Nuclear Instruments and Methods, 10 (1961) 234-236, North-Holland Publishing Company.

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