Gamma Ray Spectroscopy with Scintillation Light in Liquid Xenon

Abstract

Scintillation light from gamma ray irradiation in liquid xenon is detected by two Hamamatsu R9288 photomultiplier tubes (PMTs) immersed in the liquid. UV light reflector material, PTFE, is used to optimize the light collection efficiency. The detector gives a high light yield of 6 photoelectron per keV (pe/keV), which allows efficient detection of the 122 keV gamma-ray line from Co-57, with a measured energy resolution of (8.8+/-0.6)% (sigma). The best achievable energy resolution, by removing the instrumental fluctuations, from liquid xenon scintillation light is estimated to be around 6-8% (sigma) for gamma-ray with energy between 662 keV and 122 keV.

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• Ultra-Low Energy Calibration of LUX Detector using ${}^{127}$Xe Electron Capture
• Preparation of Neutron-activated Xenon for Liquid Xenon Detector Calibration
• Investigation of the Coincidence Resolving Time performance of a PET scanner based on liquid xenon: A Monte Carlo study
• Suitability of high-pressure xenon as scintillator for gamma ray spectroscopy
• A liquid Xenon Positron Emission Tomograph for small animal imaging : first experimental results of a prototype cell
• PETALO: a Time-of-Flight PET with liquid xenon
• PETALO: Time-of-Flight PET with liquid xenon
• Monte Carlo characterization of PETALO, a full-body liquid xenon-based PET detector