TY - JOUR
T1 - Absorption of scintillation light in a 100 l liquid xenon γ-ray detector and expected detector performance
AU - Baldini, A.
AU - Bemporad, C.
AU - Cei, F.
AU - Doke, T.
AU - Grassi, M.
AU - Grebenuk, A. A.
AU - Grigoriev, D. N.
AU - Haruyama, T.
AU - Kasami, K.
AU - Kikuchi, J.
AU - Maki, A.
AU - Mashimo, T.
AU - Mihara, S.
AU - Mitsuhashi, T.
AU - Mori, T.
AU - Nicolò, D.
AU - Nishiguchi, H.
AU - Ootani, W.
AU - Ozone, K.
AU - Papa, A.
AU - Pazzi, R.
AU - Ritt, S.
AU - Sawada, R.
AU - Sergiampietri, F.
AU - Signorelli, G.
AU - Suzuki, S.
AU - Terasawa, K.
AU - Yamashita, M.
AU - Yamashita, S.
AU - Yoshimura, T.
AU - Yuri, Yu
N1 - Funding Information:
We wish to thank Counter Hall group of KEK for providing us with great conveniences on performing the detector tests. We also thank Cryogenics group of IPNS, KEK, for supporting us in operating the cryostat. The work is supported in part by Grant-in-Aid for Scientific Research on Priority Areas (A) provided by the Ministry of Education, Culture, Sports, Science and Technology of Japan.
PY - 2005/6/21
Y1 - 2005/6/21
N2 - An 800 l liquid xenon scintillation γ-ray detector is being developed for the MEG experiment which will search for μ+→e+γ decay at the Paul Scherrer Institut. Absorption of scintillation light of xenon by impurities might possibly limit the performance of such a detector. We used a 100 l prototype with an active volume of 372×372×496mm3 to study the scintillation light absorption. We have developed a method to evaluate the light absorption, separately from elastic scattering of light, by measuring cosmic rays and α sources. By using a suitable purification technique, an absorption length longer than 100 cm has been achieved. The effects of the light absorption on the energy resolution are estimated by Monte Carlo simulation.
AB - An 800 l liquid xenon scintillation γ-ray detector is being developed for the MEG experiment which will search for μ+→e+γ decay at the Paul Scherrer Institut. Absorption of scintillation light of xenon by impurities might possibly limit the performance of such a detector. We used a 100 l prototype with an active volume of 372×372×496mm3 to study the scintillation light absorption. We have developed a method to evaluate the light absorption, separately from elastic scattering of light, by measuring cosmic rays and α sources. By using a suitable purification technique, an absorption length longer than 100 cm has been achieved. The effects of the light absorption on the energy resolution are estimated by Monte Carlo simulation.
KW - Calorimeter
KW - Liquid xenon
KW - Purification
KW - Scintillation detector
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U2 - 10.1016/j.nima.2005.02.029
DO - 10.1016/j.nima.2005.02.029
M3 - Article
AN - SCOPUS:19944419797
SN - 0168-9002
VL - 545
SP - 753
EP - 764
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 3
ER -