Measurement of the Transverse Diffusion Coefficient of Charge in Liquid Xenon

被引：1

作者：

Chen, W. -T. ^{[1
]}

Carduner, H. ^{[1
]}

Cussonneau, J. -P. ^{[1
]}

Donnard, J. ^{[1
]}

Duval, S. ^{[1
]}

Mohamad-Hadi, A. -F. ^{[1
]}

Lamblin, J. ^{[1
]}

Lemaire, O. ^{[1
]}

Le Ray, P. ^{[1
]}

Morteau, E. ^{[1
]}

Oger, T. ^{[1
]}

Scotto-Lavina, L. ^{[1
]}

Stutzmann, J. -S. ^{[1
]}

Thers, D. ^{[1
]}

机构：

[1] CNRS, IN2P3, Ecole Mines Nantes, F-44307 Nantes, France

来源：

DIFFUSION IN SOLIDS AND LIQUIDS VII | 2012年 / 326-328卷

关键词：

diffusion coefficient; noble-liquid detector (scintillation and ionization); photon detectors; Compton telescope; xenon; medical imaging;

D O I：

10.4028/www.scientific.net/DDF.326-328.567

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Liquid xenon (LXe) is a very attractive material as a detection medium for ionization detectors due to its high density, high atomic number, and low energy required to produce electron-ion pairs. Therefore it has been used in several applications, like gamma detection or direct detection of dark matter. Now Subatech is working on the R & D of LXe Compton telescope for 3 gamma medical imaging, which can make precise tridimensional localization of a (beta(+), gamma) radioisotope emitter. The diffusion of charge carriers will directly affect the spatial resolution of LXe ionization signal. We will report how we measure the transverse diffusion coefficient for different electric field (0.5 similar to 1.2 kV/cm) by observing the spray of charge carriers on drift length varying until 12 cm. With very-low-noise front-end electronics and complete Monte-Carlo simulation of the experiment, the values of transverse diffusion coefficient are measured precisely.

引用

页码：567 / +

页数：2

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