Title :
Development of a low noise preamplifier for the detection and position determination of single electrons in a Cerenkov ring imaging detector by charge division
Author :
Spencer, E. ; Coyle, P. ; Williams, D. ; Bienz, T. ; Bird, F. ; Gaillard, M. ; Hallewell, G. ; Kwon, Y.J. ; Leith, D. ; McShurley, D. ; Oxoby, G. ; Ratcliff, B. ; Rensing, P. ; Schultz, D. ; Shapiro, S. ; Toge, N. ; Caldwell, D. ; Lu, A. ; Yellin, S. ; Me
Author_Institution :
California Univ., Santa Cruz, CA, USA
Abstract :
A preamplifier using a low-noise dual-gate MOSFET front end has been designed, built, and tested. It performs well, having a noise level of about 500 electrons RMS at a shaping time of 65 ns. It is linear over its entire range to better than 1%. It has been used to detect single photoelectrons in a Cerenkov ring imaging detector. A single channel contains preamp, RC-CR shaper, gain adjustment, driver, and calibration circuitry. The circuit is described in detail, and results of noise and linearity measurements are presented.<>
Keywords :
Cherenkov counters; electron detection and measurement; position sensitive particle detectors; preamplifiers; Cerenkov ring imaging detector; RC-CR shaper; calibration circuitry; charge division; detection; driver; gain adjustment; low noise preamplifier; low-noise dual-gate MOSFET front end; position determination; single electrons; single photoelectrons; Calibration; Circuit noise; Detectors; Driver circuits; Electrons; MOSFET circuits; Noise level; Noise shaping; Preamplifiers; Testing;
Journal_Title :
Nuclear Science, IEEE Transactions on
