A SPECTROMETER FILTER FOR SEMICONDUCTOR AND SCINTILLATION DETECTORS

The paper describes an integrating low-pass filter which takes signals from a delay line. The filter changes triangular pulses into rectangu lar ones. The energy resolution of a semiconductor detector whose sign al is processed by the filter is 15-20% better than that using a commo n RC-filter. The integrator stores a charge due to the scintillation p ulse during the integration time without loss. The energy and time res olution of the device with the spectrometer filter is better than with an RC-filter. The energy resolution of a bismuth-germanate detector i n recording radiation from Cs-137 is 9.75%.