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Photonics Research

Photonics Research

| A joint OSA/Chinese Laser Press publication

  • Editor: Zhiping (James) Zhou
  • Vol. 2, Iss. 3 — Jun. 1, 2014
  • pp: 92–96

Performance study of a cesium iodide photocathode-based UV photon detector in Ar/CH4 mixture

G. Baishali, V. Radhakrishna, V. Koushal, K. Rakhee, and K. Rajanna  »View Author Affiliations


Photonics Research, Vol. 2, Issue 3, pp. 92-96 (2014)
http://dx.doi.org/10.1364/PRJ.2.000092


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Abstract

The detection efficiency of a gaseous photomultiplier depends on the photocathode quantum efficiency and the extraction efficiency of photoelectrons into the gas. In this paper we have studied the performance of an UV photon detector with P10 gas in which the extraction efficiency can reach values near to those in vacuum operated devices. Simulations have been done to compare the percentage of photoelectrons backscattered in P10 gas as well as in the widely used neon-based gas mixture. The performance study has been carried out using a single stage thick gas electron multiplier (THGEM). The electron pulses and electron spectrum are recorded under various operating conditions. Secondary effects prevailing in UV photon detectors like photon feedback are discussed and its effect on the electron spectrum under different operating conditions is analyzed.

© 2014 Chinese Laser Press

OCIS Codes
(040.0040) Detectors : Detectors
(040.5160) Detectors : Photodetectors
(040.5250) Detectors : Photomultipliers
(040.7190) Detectors : Ultraviolet

ToC Category:
Photodetectors

History
Original Manuscript: January 2, 2014
Revised Manuscript: May 5, 2014
Manuscript Accepted: May 7, 2014
Published: May 30, 2014

Citation
G. Baishali, V. Radhakrishna, V. Koushal, K. Rakhee, and K. Rajanna, "Performance study of a cesium iodide photocathode-based UV photon detector in Ar/CH4 mixture," Photon. Res. 2, 92-96 (2014)
http://www.opticsinfobase.org/prj/abstract.cfm?URI=prj-2-3-92


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References

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