A simulation of the optical attenuation of TPB coated light-guide detectors

被引：3

作者：

Jones, B. J. P. ^{[1
]}

机构：

[1] MIT, Cambridge, MA 02139 USA

来源：

JOURNAL OF INSTRUMENTATION | 2013年 / 8卷

关键词：

Scintillators; scintillation and light emission processes (solid; gas and liquid scintillators); Noble liquid detectors (scintillation; ionization; double-phase); Photon detectors for UV; visible and IR photons (gas) (gas-photocathodes; solid-photocathodes);

D O I：

10.1088/1748-0221/8/10/C10015

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This note is provided as a supplementary section to accompany the paper [1] which has been included in these proceedings. It describes some simple simulations which were performed in order to understand the attenuation behaviors of acrylic light-guides operated in air and argon, which were characterized in [2]. Whilst these simulations are only at the level of sophistication of a toy model, they illustrate interesting non-exponential light attenuation effects and the differences between operating light-guide based detectors in argon and air environments. We investigate the effects of surface absorption, surface roughness and wavelength dependence, and use a model tuned on the light-guide attenuation curve measured in air to make a prediction of the light-guide attenuation curve in argon. This curve is compared with data from a liquid argon test stand, and an improvement over a simple exponential model is observed.

引用

页数：7