Measurement of fast neutron/gamma-ray cross-correlation functions with Cf-252 and Pu-Be neutron sources

Author

Flaska, Marek ; Enqvist, Andreas ; Pozzi, Sara A.

Author_Institution

Dept. of Nucl. Eng. & Radiol. Sci., Univ. of Michigan, Ann Arbor, MI, USA

fYear

2009

fDate

Oct. 24 2009-Nov. 1 2009

Firstpage

961

Lastpage

963

Abstract

A novel technique is presented for measurements of neutron and gamma-ray time-dependent cross-correlation (cc) functions from alpha-n and spontaneous-fission sources. A system based on a fast multi-channel waveform digitizer, organic liquid scintillation detectors, and analysis algorithms was developed at the University of Michigan by the Detection for Nuclear Nonproliferation Group. Measured total and partial cc functions are presented for Cf-252 and Pu-Be sources. The results indicate that an alpha-n source can be distinguished from a spontaneous-fission source by (visual) inspection of the shape of measured cc functions.

Keywords

neutron sources; radioactive sources; scintillation counters; spontaneous fission; analysis algorithms; fast neutron cross-correlation functions; gamma-ray cross-correlation functions; gamma-ray time-dependent cross-correlation functions; multichannel waveform digitizer; neutron sources; neutron time-dependent cross-correlation functions; novel technique; organic liquid scintillation detectors; spontaneous-fission sources; Algorithm design and analysis; Energy measurement; Gamma rays; Neutrons; Nuclear measurements; Pulse measurements; Scintillation counters; Shape measurement; Solid scintillation detectors; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE

Conference_Location

Orlando, FL

ISSN

1095-7863

Print_ISBN

978-1-4244-3961-4

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2009.5402467

Filename

5402467