Mercuric Iodide Photocell Technology for Room Temperature Readout of Scintillators
Mercuric iodide (HgI2) is a well known material for the direct detection of gamma rays; however, the largest volume achievable is limited by thickness of the detector, which needs to be a small fraction of the average trapping length for electrons. We are reporting here preliminary results in using HgI2 crystals to fabricate photocells used in the readout of various scintillators. The optical spectral response and efficiency of these photocells were measured and will be reported. Preliminary nuclear response from a HgI2 photocell that was optically matched to a Ce3+ :LaBr3 scintillator will also be presented and discussed. Further improvements will be sought by optimizing the transparent contact technology.
- Research Organization:
- National Security Technologies, LLC (NSTec), Mercury, NV (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NA)
- DOE Contract Number:
- DE-AC52-06NA25946
- OSTI ID:
- 946744
- Report Number(s):
- DOE/NV/25946-155; TRN: US0901169
- Journal Information:
- Proceedings of the SPIE, Vol. 6706; Conference: Hard X-ray and Gamma-Ray Detector Physics and Penetrating Radiation Systems IX (SPIE), August 2007
- Country of Publication:
- United States
- Language:
- English
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