Multi-channel Waveform Sampling ASIC for radiation detection and measurement

K. Shimazoe, H. Takahashi, Jungyeol Yeom, T. Furumiya, J. Ohi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We have designed and fabricated a 16-channel Waveform Sampling ASIC for radiation detection and measurement. Waveform sampling is very important for the pulse shape analysis and discrimination, which is often used in radiation detection to discriminate different radiations such as alpha, beta and gamma rays. One channel of the fabricated ASIC consists of a charge-sensitive preamplifier, a VGA (Variable Gain Amplifier), an ADC (Analog to Digital Converter) and digital circuits. The preamplifier converts the current signal to the voltage signal, and the VGA amplifies the signal to appropriate level for the ADC. The ADC was designed to digitize the waveform with a frequency of 100 MHz and a resolution of 6bits. Digital circuits consist of a free-running ADC and a multiplexer which were designed to convert a digitized 100 MHz/6bit signal to a 200 MHz/3bit one, which is effective for the reduction of the number and for the achievement of the high integration in one chip. This chip was designed and fabricated with 0.35 μm CMOS technology by ROHM and the size of the ASIC is 4.9 mm by 4.9 mm. The design concept and some experimental results are shown in this paper.

Original languageEnglish
Pages (from-to)87-89
Number of pages3
JournalRadiation Measurements
Volume55
DOIs
Publication statusPublished - 2013 Aug 1
Externally publishedYes

Fingerprint

application specific integrated circuits
analog to digital converters
Application specific integrated circuits
Digital to analog conversion
waveforms
sampling
Sampling
Radiation
digital electronics
preamplifiers
Digital circuits
radiation
rays
amplifiers
chips
Gamma rays
discrimination
CMOS
gamma rays
Electric potential

Keywords

  • ASIC
  • CMOS
  • Pulse shape discrimination

ASJC Scopus subject areas

  • Radiation
  • Instrumentation

Cite this

Multi-channel Waveform Sampling ASIC for radiation detection and measurement. / Shimazoe, K.; Takahashi, H.; Yeom, Jungyeol; Furumiya, T.; Ohi, J.

In: Radiation Measurements, Vol. 55, 01.08.2013, p. 87-89.

Research output: Contribution to journalArticle

Shimazoe, K. ; Takahashi, H. ; Yeom, Jungyeol ; Furumiya, T. ; Ohi, J. / Multi-channel Waveform Sampling ASIC for radiation detection and measurement. In: Radiation Measurements. 2013 ; Vol. 55. pp. 87-89.
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