Performance of a Chamber for Studying the Liquid Xenon Response to Nuclear Recoils

Details Performance of a Chamber for Studying the Liquid Xenon Response to Nuclear Recoils Performance of a Chamber for Studying the Liquid Xenon Response to Nuclear Recoils

2005-01-07

arxiv.org/abs/physics/0501036v2

IEEETrans.Nucl.Sci.52:2793-2800,2005

Physics

Instrumentation and Detectors

6 pages, 6 figures; Presented at IEEE Nuclear Science Symposium and Medical Imaging Conference, Rome 2004; Submitted to IEEE T

Scientific paper

10.1109/TNS.2005.862782

The design and performance of a 1.2 liter liquid xenon chamber equipped with 7 two-inch photomultiplier tubes, with the purpose of studying the scintillation response of xenon to gamma-rays and neutrons, is described. Measurements with gamma-rays indicate a high VUV light collection efficiency resulting in ~5.5 photoelectrons per 1 keV of deposited energy. The energy resolution (FWHM) is 18% and 22%, for 122 keV and 511 keV gamma-rays, respectively. An algorithm for the reconstruction of the scintillation coordinates in (x,y) plane was developed and tested. The position resolution is estimated to be 6.9 mm (sigma) for 122 keV gamma-rays.

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