Geiger Mode APD performance in a cryogenic two-phase Ar avalanche detector based on THGEMs
Mar, 2010
4 pages
Published in:
- Nucl.Instrum.Meth.A 628 (2011) 364-368
Contribution to:
e-Print:
- 1003.1597 [physics.ins-det]
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Citations per year
Abstract: (arXiv)
Characteristic properties of a Geiger Mode APD (G-APD) in a THGEM-based cryogenic two-phase Ar avalanche detector were studied in view of potential applications in rare-event experiments. G-APD signal amplitude and noise characteristics at cryogenic temperatures turned out to be superior to those at room temperature. The effective detection of avalanche scintillations from THGEM-multiplier holes in two-phase Ar has been demonstrated using a G-APD without wavelength shifter. At an avalanche gain of 60, the avalanche scintillation yield measured by the G-APD was as high as 0.9 photoelectrons per avalanche electron, extrapolated to 4pi acceptance.Note:
- 4 pages, 8 figures. Presented at Vienna Conference on Instrumentation (Feb 15-20, 2010, Vienna, Austria). Submitted to the Proceedings
- 29.40.Cs
- 34.80.My
- Cryogenic two-phase avalanche detectors
- Geiger mode APD
- Gas electron multipliers
- Thick GEMs
References(23)
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