Detection of relativistic neutrons by BaF2 scintillators

被引：11

作者：

Wagner, V

Kugler, A

Pachr, M

Sumbera, M

Taranenko, A

Hlavac, S

Lorencz, R

Wohlgemuth, R

Simon, RS

机构：

[1] SAS,INST PHYS,SK-84228 BRATISLAVA,SLOVAKIA

[2] UNIV MUNICH,D-85748 GARCHING,GERMANY

[3] GESELL SCHWERIONENFORSCH MBH,D-64220 DARMSTADT,GERMANY

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1997年 / 394卷 / 03期

关键词：

relativistic neutron detection; barium fluoride detectors; hadronic shower; electromagnetic shower;

D O I：

10.1016/S0168-9002(97)00674-8

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Neutrons and photons with energies from 100 MeV to 1.3 GeV are registered in a cluster of seven hexagonal BaF2 scintillator modules. The neutron-induced hadronic shower is studied as a function of the incident neutron energy and is compared with the photon-induced electromagnetic shower. From the neutron flux and spectral distribution at the position of the BaF2 detector, which were measured with a calibrated liquid scintillation detector, the absolute efficiency for neutron detection is determined as a function of the incident energy. A simple exponential relation is used to extrapolate to zero electronic threshold. The results are compared with GEANT3 simulations.

引用

页码：332 / 340

页数：9