CROSS TALK AND DIAPHONY IN NEUTRON DETECTORS

被引：41

作者：

DESESQUELLES, P ^{[1
]}

COLE, AJ ^{[1
]}

DAUCHY, A ^{[1
]}

GIORNI, A ^{[1
]}

HEUER, D ^{[1
]}

LLERES, A ^{[1
]}

MORAND, C ^{[1
]}

SAINTMARTIN, J ^{[1
]}

STASSI, P ^{[1
]}

VIANO, JB ^{[1
]}

CHAMBON, B ^{[1
]}

CHEYNIS, B ^{[1
]}

DRAIN, D ^{[1
]}

PASTOR, C ^{[1
]}

机构：

[1] UNIV LYON 1,INST PHYS NUCL LYON,CNRS,INST NATL PHYS NUCL & PHYS PARTICULES,F-69622 VILLEURBANNE,FRANCE

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1991年 / 307卷 / 2-3期

关键词：

D O I：

10.1016/0168-9002(91)90206-6

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A neutron which enters a detector can be scattered into a neighbouring detector. If the neutron is registered in each detector the effect will be called "cross talk", and if a hit is registered only in the neighbouring detector, the effect is described as "diaphony". An experiment performed with the AMPHORA multidetector showed that diaphony and cross talk severely alter the neutron detection in small granularity NE213 cells. In this experiment, four out of five neutron coincidences between neighbours were due to cross talk. Up to one out of four detected neutrons is induced by a neutron entering a neighbouring detector. The Monte Carlo code Menate showed that there is no simple way to extract true coincidences from cross talks and that a CsI cristal placed in front of the NE213 cell (phostron detector) induces an enhancement of the cross talk rate. The main consequences of diaphony and cross talk are: an enhancement of the measured multiplicity and of the small relative angle coincidences, and a smoothing of the laboratory angular distribution.

引用

页码：366 / 373

页数：8

共 12 条

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