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arXiv physics/0203011physics.ins-det
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用LAAPD探测液体氙的闪烁光

Detection of Scintillation Light of Liquid Xenon with a LAAPD

V. N. Solovov, A. Hitachi, V. Chepel, M. I. Lopes, R. Ferreira Marques, A. J. P. L. Policarpo

摘要:

本文报道了用大面积雪崩光电二极管在液体中首次观测到α粒子和γ射线引起的液体氙闪烁现象。用5.5 MeV α粒子和511 keV γ射线分别测量了10%的能量分辨率(FWHM)和小于1 ns的符合时间分辨率(FWHM)。氙闪烁光(波长178 nm)的光电二极管的量子效率估计为~ 100%。

英文摘要:

First observation of liquid xenon scintillation due to alpha-particles and gamma-rays with a large area avalanche photodiode immersed in the liquid is reported. An energy resolution of 10% (FWHM) and a coincidence time resolution of less then 1 ns (FWHM) were measured with 5.5 MeV alpha-particles and 511 keV gamma-rays, respectively. The quantum efficiency of the photodiode for xenon scintillation light (wavelength 178 nm) is estimated to be ~100%.

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