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