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

V. Chepel; F. Neves; V. Solovov; A. Pereira; M. I. Lopes; J. Pinto da Cunha; P. Mendes; A. Lindote; C. P. Silva; R. Ferreira Marques; A. J. P. L. Policarpo

doi:10.1109/tns.2005.862782

arXiv · physics/0501036

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

V. Chepel·F. Neves·V. Solovov·A. Pereira·M. I. Lopes·J. Pinto da Cunha·P. Mendes·A. Lindote·C. P. Silva·R. Ferreira Marques·A. J. P. L. Policarpo

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Abstract

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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V. Chepel, F. Neves, V. Solovov, A. Pereira, M. I. Lopes, J. Pinto da Cunha, P. Mendes, A. Lindote, C. P. Silva, R. Ferreira Marques, A. J. P. L. Policarpo. 2005-01-14. Performance of a Chamber for Studying the Liquid Xenon Response to Nuclear Recoils. https://doi.org/10.1109/tns.2005.862782

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