A pulse-processor based on rise time measurement of trapezoidal waveforms by using a count-up ADC

M. Kuwata, H. Maeda, K. Husimi, S. Ohkawa, M. Iwasaki, S. N. Nakamura, T. M. Ito, T. Terada

Research output: Contribution to journalArticlepeer-review

Abstract

In order to raise the throughput of low-energy X-ray signals appearing in a background of high-energy pulses, a new pulse-processor that measures the rise time of a trapezoidal waveform instead of the peak height has been developed. A rectangular pre-filter and a gated integrator are used to make the wave-shape at the shaper output linear. A rectangular pulse is formed by adding a differentiated step signal and its integration. The rise time of the trapezoidal waveform is inversely proportional to the height of the input step pulse. Therefore, processing time for a high-energy pulse is shorter than that for low-energy one. Consequently, the pile-up loss of the low-energy X-rays is reduced.

Original languageEnglish
Pages (from-to)1626-1628
Number of pages3
JournalIEEE Transactions on Nuclear Science
Volume43
Issue number3 PART 2
DOIs
Publication statusPublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Electrical and Electronic Engineering

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