Low-Noise Preamplifier for High Count Rates
- 1 June 1972
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 19 (3) , 418-422
- https://doi.org/10.1109/TNS.1972.4326759
Abstract
A low-noise charge sensitive preamplifier employing charge restoration after each detector pulse is described. Charge restoration is performed for each pulse by exposing the input FET to an optical flash (produced by a GaAs diode) proportional to the amplitude of the main amplifier output pulse. Special care has been taken to eliminate temperature and linearity problems of the GaAs diode. This preamplifier is capable of operating at very high "energy rates", e.q. for 5 MeV radiation at more than 100,000 cps.Keywords
This publication has 3 references indexed in Scilit:
- Pulsed Feedback Tecniques for Semicondctor Detector Radiation SpectrometersIEEE Transactions on Nuclear Science, 1971
- Charge Amplification without Charge Leak ResistorIEEE Transactions on Nuclear Science, 1970
- An opto-electronic feedback preamplifier for high-resolution nuclear spectroscopyNuclear Instruments and Methods, 1969