Neutron moderation for imaging of SNM

Author

Lukosi, Eric ; Rowan, Allen ; Milburn, Robert ; Littell, Jennifer

Author_Institution

Univ. of Tennessee, Knoxville, TN, USA

fYear

2013

fDate

Oct. 27 2013-Nov. 2 2013

Firstpage

1

Lastpage

4

Abstract

The use of a thermal neutron detection array comprised of boron straws, a ³He replacement technology, was embedded in a high density polyethylene (HDPE) neutron moderating array to investigate the possibility of one dimensional neutron source localization. The HDPE structure around the boron straw detectors was varied to identify the optimum background suppression and neutron source enhancement. Initial results have indicated that the use of a complex HDPE mask structure will provide a means to image non-moving source locations and is applicable to current portal monitor technologies that utilize other techniques for source presence identification and imaging when the source is moving.

Keywords

neutron detection; neutron moderation; neutron sources; position sensitive particle detectors; ³He replacement technology; HDPE mask structure; HDPE structure; SNM; boron straw detectors; boron straws; high density polyethylene neutron moderating array; neutron moderation; nonmoving source locations; one dimensional neutron source localization; portal monitor technologies; special nuclear materials; thermal neutron detection array; Arrays; Boron; Detectors; Electron tubes; Geometry; Imaging; Neutrons;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2013 IEEE

Conference_Location

Seoul

Print_ISBN

978-1-4799-0533-1

Type

conf

DOI

10.1109/NSSMIC.2013.6829619

Filename

6829619