A new hybrid photomultiplier tube as detector for scintillating crystals

被引：5
作者：
de Notaristefani, F
Vittori, F
Puertolas, D
机构：
[1] Univ Roma III, Dipartimento Fis E Amaldi, I-00146 Rome, Italy
[2] Ist Nazl Fis Nucl, Sez Roma 1, Rome, Italy
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2002年 / 480卷 / 2-3期
关键词：
optical detectors; scintillating crystals; hybrid photomultiplier tube; light collection efficiency;
D O I：
10.1016/S0168-9002(01)00872-5
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
In this work, we have attentively studied the performance of a new hybrid photomultiplier tube (HPMT) as detector for photons from scintillating crystals. The HPMT is equipped with a YAP window in order to improve light collection and increase measured light response from scintillating crystals. Several measurements have been performed on BGO, LSO, CsI(Tl) and NaI(Tl) planar crystals having three different surface treatments as well as on YAP: Ce and CsI(Tl) matrices. Such crystals have been coupled to two HPMTs, one equipped with a YAP window (Y-HPMT) and the other with a conventional quartz window (Q-HPMT). Measurements on crystals coupled to the Y-HPMT have shown a consistent improvement of the light response, thanks to the presence of the YAP window, Indeed, the light response measured with the Y-HPMT was on average equal to 1.5, 2.1 and 2.6 times that obtained with the Q-HPMT for planar crystals with white painted (diffusive), fine ground and polished rear surfaces, respectively. With regards to crystal matrices, we measured a light response increase of about 1.2 times. (C) 2002 Elsevier Science B.V. All rights reserved.
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页码：423 / 430
页数：8
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