POSITION-SENSITIVE SCINTILLATION DETECTOR FOR HARD X-RAYS

被引：20
|
作者：
POULSEN, JM [1 ]
VERBENI, R [1 ]
FRONTERA, F [1 ]
机构：
[1] UNIV FERRARA,DIPARTMENTO FIS,I-44100 FERRARA,ITALY
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1991年 / 310卷 / 1-2期
关键词：
D O I：
10.1016/0168-9002(91)91068-7
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Position-sensitive detectors for hard X-rays (> 10 keV) are of increasing importance in many applications. With the advent of commercially produced PMTs with position-sensitive readout it is possible to construct large area detectors with good position resolution while still having the high detection efficiency of crystal scintillators. Detailed Monte Carlo simulations as well as laboratory tests on a unit with a 42 x 42 mm2 front surface area for such a system have been performed. The PMT had a crossed-wire anode readout and was coupled to different NaI(Tl) scintillator crystals. With a 3 mm thick crystal a position resolution of 1.7 mm FWHM at 122 keV was obtained, while still having an energy resolution of 13%.
引用
收藏
页码：398 / 402
页数：5
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