Suitability of high-pressure xenon as scintillator for gamma ray spectroscopy
F. Resnati, U. Gendotti, R. Chandra, A. Curioni, G. Davatz, H., Frederich, A. Gendotti, L. Goeltl, R. Jebali, D. Murer, A. Rubbia
TL;DR
This study evaluates high-pressure xenon as a scintillator for gamma ray detection, demonstrating a light yield of 2 photoelectrons per keV and an energy resolution of about 9% at 662 keV.
Contribution
It provides experimental data on the scintillation performance of high-pressure xenon for gamma ray spectroscopy, which was previously less characterized.
Findings
Light yield of ~2 photoelectrons/keV at 40 bar
Energy resolution of ~9% at 662 keV
Performance dominated by photoelectron statistical fluctuations
Abstract
In this paper we report the experimental study of high-pressure xenon used as a scintillator, in the context of developing a gamma ray detector. We measure a light yield near 2 photoelectrons per keV for xenon at 40 bar. Together with the light yield, we also measured an energy resolution of ~9% (FWHM) at 662 keV, dominated by the statistical fluctuations in the number of photoelectrons.
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