DocumentCode :
819533
Title :
Performance of a chamber for studying the liquid xenon response to /spl gamma/-rays and nuclear recoils
Author :
Neves, F. ; Chepel, V. ; Solovov, V. ; Pereira, A. ; Lopes, M.I. ; da Cunha, Pinto J. ; Mendes, P. ; Lindote, A. ; Silva, C.P. ; Marques, Ferreira R. ; Policarpo, A.J.P.L.
Author_Institution :
Dept. of Phys., Univ. of Coimbra
Volume :
52
Issue :
6
fYear :
2005
Firstpage :
2793
Lastpage :
2800
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 sigma=6.9 mm for 122 keV gamma-rays
Keywords :
Cherenkov counters; Rayleigh scattering; gamma-ray detection; ionisation chambers; liquid scintillation detectors; photomultipliers; FWHM; Rayleigh scattering; energy resolution; gamma-rays; high VUV light collection efficiency; liquid xenon chamber; neutrons; nuclear recoils; photoelectrons; photomultiplier tubes; position resolution; reconstruction; scintillation response; Electrons; Energy capture; Energy measurement; Energy resolution; Light scattering; Neutrons; Particle beams; Photomultipliers; Solid scintillation detectors; Xenon; Gamma-rays; Rayleigh scattering; liquid xenon; nuclear recoils; scintillation;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/TNS.2005.862782
Filename :
1589279
Link To Document :
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