A LaF3:Nd(10%) scintillation detector with microgap gas chamber read-out for the detection of gamma-rays

被引：12

作者：

vanderMarel, J ^{[1
]}

Bom, VR ^{[1
]}

vanEijk, CWE ^{[1
]}

Hollander, RW ^{[1
]}

Sarro, PM ^{[1
]}

机构：

[1] DELFT UNIV TECHNOL,DELFT INST MICROELECT & SUBMICRON TECHNOL,DELFT,NETHERLANDS

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1997年 / 392卷 / 1-3期

关键词：

D O I：

10.1016/S0168-9002(97)00237-4

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A LaF3:Nd(10%) scintillator crystal has been placed in a microgap gas chamber to obtain a position-sensitive detector for gamma-rays. Directly on the crystal a thin layer of nickel is evaporated, and on top of that a thin semi-transparant CsI photocathode. gamma-rays absorbed in the scintillator crystal produce a UV-light flash, which liberates electrons in the photocathode. These electrons are multiplied and detected in the microgap chamber. By comparing the spectrum measured when this detector is irradiated with 511 keV gamma-rays with a spectrum that is computed in a Monte Carlo simulation, it is concluded that the probability that a UV-light photon created in the scintillator produces a photoelectron in the photocathode, is about 2.5%.

引用

页码：310 / 314

页数：5

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