Method and circuit arrangement for compensating for rate...

Radiant energy – Invisible radiant energy responsive electric signalling – Semiconductor system

Reexamination Certificate

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Reexamination Certificate

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10971208

ABSTRACT:
For compensating for the rate dependent change of charge-to-voltage conversion factor in a drift-type radiation detector there is detected a change in a momentary photon hit rate affecting said drift-type radiation detector. A drain current flowing through an integrated amplifier of said drift-type radiation detector is changed by an amount proportional to the detected change in said momentary photon hit rate.

REFERENCES:
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patent: 0301963 (1989-02-01), None
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C. Guazzoni, M. Sampietro, A. Fazzi, P. Lechner, “Two-chip charge amplifier system for high resolution, high count rate readout.” Feb. 1, 2001, Nuclear Instruments and Methods in Physics Research A, vol. 458, No. 1-2, pp. 370-374.
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Fiorini et al, “Continuous Charge Restoration in Semiconductor Detectors by Means of the Gate-to-Drain Current of the Integrated Front-End JFET,” IEEE Transactions on Nuclear Science, vol. 46, No. 3, Jun. 1999, pp. 761-764.
Elaid, E., “Drain Feedback—A Novel Feedback Technique for Low-Noise Cryogenic Preamplifiers,” ORTEC, Inc., Oak Rige, Tennessee, undated, pp. 403-411.

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