A detector for charged particle counting in the presence of strong electromagnetic noise

Shigeyuki Sekine, Shingo Ichimura

Research output: Contribution to journalArticle


An electron/ion pulse counting system was used for a high-counting-rate application under strong electromagnetic noise. The number of photoelectrons produced by a nonresonant multiphoton ionization of gaseous molecules was counted as a function of gas pressure in vacuum. The system was successfully operated under electromagnetic noise originated from a pulsed laser. The detector acted as a gated, accumulating counter with a capacity of 300 cps. A maximum counting rate of 2×1010 cps was experimentally achieved when laser-produced photoelectrons arrived within a gate of 15 ns.

Original languageEnglish
Pages (from-to)325-X
JournalReview of Scientific Instruments
Issue number1
Publication statusPublished - 1996 Jan 1
Externally publishedYes


ASJC Scopus subject areas

  • Instrumentation

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