Title :
Efficiencies of coated and perforated semiconductor neutron detectors
Author :
Shultis, J. Kenneth ; McGregor, Douglas S.
Author_Institution :
Dept. of Mech. & Nucl. Eng., Kansas State Univ., Manhattan, KS, USA
Abstract :
Previous experimental results indicated that boron-filled perforations within a semiconductor diode detector increase the thermal neutron detection efficiency. In the present work, two basic perforation designs, circular holes and parallel trenches, are analyzed using a Monte Carlo approach for use as high-efficiency thermal neutron detectors. The modeling results indicate that thermal-neutron intrinsic detection efficiencies exceeding 25% can be realized for single coated devices, and efficiencies exceeding 50% can be realized for doubled or "sandwiched" devices.
Keywords :
Monte Carlo methods; neutron detection; semiconductor counters; Monte Carlo approach; boron-filled perforations; circular holes; coated semiconductor neutron detectors; doubled devices; parallel trenches; perforated semiconductor neutron detectors; sandwiched devices; semiconductor diode detector; single coated devices; thermal-neutron intrinsic detection efficiencies; Coatings; Detectors; Electromagnetic wave absorption; Helium; Microscopy; Neutrons; Semiconductor diodes; Semiconductor materials; Stationary state; Telephony;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2004 IEEE
Print_ISBN :
0-7803-8700-7
Electronic_ISBN :
1082-3654
DOI :
10.1109/NSSMIC.2004.1466900
