Title :
A trapezoidal shaper using a rectangular prefilter
Author :
Kuwata, M. ; Maeda, H. ; Husimi, K.
Author_Institution :
JEOL Eng. Co., Tokyo, Japan
fDate :
8/1/1995 12:00:00 AM
Abstract :
A new time-variant pulse shaping amplifier that is composed of a rectangular prefilter and a gated integrator has been designed for low energy gamma-ray and X-ray spectrometers. A rectangular pulse is formed by adding a differentiated signal and an integration of the differentiated signal. Noise indices of the trapezoidal filter are calculated as a function of the filter and restoration time constant and event interval. By using this filter, the product of the delta noise index and dead time is lower than 5
Keywords :
X-ray spectrometers; X-ray spectroscopy; detector circuits; gamma-ray spectrometers; gamma-ray spectroscopy; nuclear electronics; pulse shaping circuits; delta noise index; event interval; gated integrator; low energy X-ray spectrometers; low energy gamma-ray spectrometers; rectangular prefilter; restoration time constant; time-variant pulse shaping amplifier; trapezoidal shaper; Circuits; Detectors; Filters; Leak detection; Noise shaping; Pulse amplifiers; Pulse shaping methods; Semiconductor device noise; Signal restoration; Spectroscopy;
Journal_Title :
Nuclear Science, IEEE Transactions on
