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

被引：8
|
作者：
Neves, F [1 ]
Chepel, V
Solovov, V
Pereira, A
Lopes, MI
da Cunha, JP
Mendes, P
Lindote, A
Silva, CP
Marques, RF
Policarpo, AJPL
机构：
[1] Univ Coimbra, LIP, P-3004516 Coimbra, Portugal
[2] Univ Coimbra, CFRM, P-3004516 Coimbra, Portugal
[3] Univ Coimbra, Dept Phys, P-3004516 Coimbra, Portugal
来源：
IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2005年 / 52卷 / 06期
关键词：
gamma-rays; liquid xenon; nuclear recoils; Rayleigh scattering; scintillation;
D O I：
10.1109/TNS.2005.862782
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
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 similar to 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.
引用
收藏
页码：2793 / 2800
页数：8
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