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

Volume

7

fYear

2004

fDate

16-22 Oct. 2004

Firstpage

4569

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2004 IEEE

ISSN

1082-3654

Print_ISBN

0-7803-8700-7

Electronic_ISBN

1082-3654

Type

conf

DOI

10.1109/NSSMIC.2004.1466900

Filename

1466900