Scintillation detector signal processing technique with active pileup prevention for extending scintillation count rates

Wai Hoi Wong, Hondi Li

Research output: Contribution to conferencePaperpeer-review

Abstract

A new method for processing the signal from a scintillation detectors is proposed. This method has an active pileup prevention which significantly increases the maximum count-rate capability of scintillation counting. It dynamically adjusts the integration of scintillation light together with a simple (but exact) cancellation of the remnant light from all previous multiple pileups. A prototype circuit demonstrated that at normal count rates, its energy resolution is as good as that of the traditional pulse shaping (or the fixed integration) method, but, the maximum count rates has been increased by 10 times or more. At 2 million counts/sec for NaI(Tl), the true counts acquired is 3 times more than delay-line clipping. Pulse height spectra up to 3.5 million/sec was studied.

Original languageEnglish (US)
Pages145-149
Number of pages5
StatePublished - 1997
EventProceedings of the 1997 IEEE Nuclear Science Symposium - Albuquerque, NM, USA
Duration: Nov 9 1997Nov 15 1997

Other

OtherProceedings of the 1997 IEEE Nuclear Science Symposium
CityAlbuquerque, NM, USA
Period11/9/9711/15/97

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

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