Characteristics of 16-channel ASIC preamplifier board for microstrip gas chamber and animal PET

Boxuan Shi, Hiroyuki Takahashi, Jungyeol Yeom, Yuka Takada, Yoneichi Hosono, Kenji Shimazoe, Kaoru Fujita

Research output: Contribution to journalArticle

Abstract

A 16-channel ASIC preamplifier board has been designed for microstrip gas chamber (MSGC) and animal position emission tomography (PET) detectors. The highly integrated ASIC chips can be used for individual readouts from a large number of channels to improve the spatial resolution and counting rate. The preamplifier board was tested to have a low optimum equivalent noise charge (ENC) of ˜ 1400 e FWHM at a shaping time of 0.1 μs. The output voltage to input charge gain is 0.96 V/pC, and the nonlinearity is ˜ 2:0% over a range of −500 fC to 1000 fC in input charge. The rise time (10%–90%) with no input capacitor is about 54 ns. The power consumption of this preamplifier board is ˜ 100 mW. The preamplifier board has been used to read out a 3 × 3 cm MSGC plate and an optimum FWHM energy resolution of 19.1% (5.9 keV peak of Fe-55) was obtained.

Original languageEnglish
Pages (from-to)1356-1360
Number of pages5
JournalJournal of Nuclear Science and Technology
Volume44
Issue number11
DOIs
Publication statusPublished - 2007 Jan 1
Externally publishedYes

Keywords

  • Animal PET
  • ASIC
  • Charge-sensitive preamplifier
  • Detector
  • MSGC

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

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