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
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
收藏
页码:332 / 340
页数:9
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