First results with a microcavity plasma panel detector

R. Ball, M. Ben-Moshe, Y. Benhammou, R. Bensimon, J. W. Chapman, M. Davies, E. Etzion, C. Ferretti, P. S. Friedman, D. S. Levin, Y. Silver, R. L. Varner, C. Weaverdyck, B. Zhou

Research output: Contribution to journalArticlepeer-review


A new type of gaseous micropattern particle detector based on a closed-cell microcavity plasma panel sensor is reported. The first device was fabricated with 1×1×2 mm cells. It has shown very clean signals of 0.6-2.5 V amplitude, fast rise time of approximately 2 ns and FWHM of about 2 ns with very uniform signal shapes across all pixels. From initial measurements with β particles from a radioactive source, a maximum pixel efficiency greater than 95% is calculated, for operation of the detector over a 100 V wide span of high voltages (HV). Over this same HV range, the background rate per pixel was measured to be 3-4 orders of magnitude lower than the rate with which the cell was illuminated by the β source. Pixel-to-pixel count rate uniformity is within 3% and stable within 3% for many days. The time resolution is 2.4 ns, and a very low cell-to-cell crosstalk has been measured between cells separated by 2 mm.


  • Micropattern gas detector
  • Particle detector
  • Plasma panel sensor

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation


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