High efficiency plastic scintillator detector with wavelength-shifting fiber readout for the GLAST Large Area Telescope
High efficiency plastic scintillator detector with wavelength-shifting fiber readout for the GLAST Large Area Telescope
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DOI：
10.1016/j.nima.2007.09.040
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发表时间：
2007-12-21
影响因子：
1.4
通讯作者：
Thompson, D. J.
中科院分区：
文献类型：
--
作者：
Moiseev, A. A.;Deering, P. L.;Thompson, D. J.
本文描述了计划于2008年初发射的伽马射线大面积空间望远镜(GLAST)反符合探测器(ACD)的闪烁体瓦片探测器的设计和性能研究。闪烁体瓷砖探测器使用波长移动光纤，并具有双光电倍增管读出功能。该设计要求对瓷砖区域上的单电荷相对论粒子进行高效和统一的探测，并必须满足发射和在空间环境中运行的所有要求。我们介绍了ACD中使用的三种基本类型的瓷砖的设计，尺寸从类似450到类似2500厘米(2)，都类似于1厘米厚，具有不同的形状，在正常瓷砖入射时，光电子产额类似于每最小电离粒子20个光电子，在瓷砖区域均匀。一些瓷砖需要长达1.5米的柔性透明光纤电缆，才能将闪烁体光传输到远程放置的光电倍增管。(C)2007 Elsevier B.V.保留所有权利。
This paper describes the design and performance studies of the scintillator tile detectors for the anti-coincidence detector (ACD) of the Large Area Telescope (LAT) on the Gamma ray Large Area Space Telescope (GLAST), scheduled for launch in early 2008. The scintillator tile detectors utilize wavelength-shifting fibers and have dual-photomultiplier-tube readout. The design requires highly efficient and uniform detection of singly charged relativistic particles over the tile area and must meet all requirements for a launch, as well as operation in a space environment. We present here the design of three basic types of tiles used in the ACD, ranging in size from similar to 450 to similar to 2500 cm(2), all similar to 1cm thick, with different shapes, and with photoelectron yield of similar to 20 photoelectrons per minimum ionizing particle at normal tile incidence, uniform over the tile area. Some tiles require flexible clear fiber cables up to 1.5m long to deliver scintillator light to remotely located photomultiplier tubes. (c) 2007 Elsevier B.V. All rights reserved.