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Performance of a chamber for studying the liquid xenon response to /spl gamma/-rays and nuclear recoils

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11 Author(s)
Neves, F. ; Dept. of Phys., Univ. of Coimbra ; Chepel, V. ; Solovov, V. ; Pereira, A.
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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 sigma=6.9 mm for 122 keV gamma-rays

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Nuclear Science, IEEE Transactions on  (Volume:52 ,  Issue: 6 )