August 2016

Conference Paper

First results with a microcavity plasma panel detector

By:
Ball, Robert; Ben Moshe, M.; Benhammou, Yan; Chapman, J.; Etzion, E; Ferretti, Claudio; Friedman, Peter; Levin, Daniel; Silver, Yiftah; Varner Jr, Robert L; Weaverdyck, Curtis; Zhou, Bing; Bensimon, R; Davies, Merlin
Journal Name:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Page Number:
56-59
Volume:
784
Issue Number:
n/a
Publication Date:
August 2016
Conference Name:
Symposium on Radiation Measurements and Applications 2014 (SORMA XV)
Conference Location:
Ann Arbor, Michigan, United States of America
View DOI Listing:
https://doi.org/10.1016/j.nima.2014.11.028

Abstract

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 x 1 x 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 beta 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 beta 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. (C) 2014 Elsevier B.V. All rights reserved.