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J Radiat Prot > Volume 37(1); 2012 > Article
Journal of Radiation Protection 2012;37(1):35-0.
doi: https://doi.org/10.14407/jrp.2012.37.1.035
DT 중성자 발생기에 의한 중성자 검출기 반응도 조사
김상인;장인수;김장렬;이정일;김봉환;
Investigation of Response of Several Neutron Surveymeters by a DT Neutron Generator
Kim, Sang-In;Jang, In-Su;Kim, Jang-Lyul;Lee, Jung-Il;Kim, Bong-Hwan;
ABSTRACT
Several neutron measuring devices were tested under the neutron fields characterized with two distinct kinds of thermal and fast neutron spectrum. These neutron fields were constructed by the mixing of both thermal neutron fields and fast neutron fields. The thermal neutron field was constructed using by a graphite pile with eight AmBe neutron sources. The fast neutron field of 14 MeV was made by a DT neutron generator. In order to change the fraction of fast neutron fluence rate in each neutron fields, a neutron generator was placed in the thermal neutron field at 50 cm and 150 cm from the reference position. The polyethylene neutron collimator was used to make moderated 14 MeV neutron field. These neutron spectra were measured by using a Bonner sphere system with an LiI scintillator, and dosimetric quantities delivered to neutron surveymeters were determined from these measurement results.
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