Stand-off detection with an active interrogation photon beam

Author

Wulf, Eric A. ; Hutcheson, Anthony L. ; Phlips, Bernard F. ; Mitchell, Lee J. ; Leas, Byron E.

Author_Institution

Naval Res. Lab. in Washington, Washington, DC, USA

fYear

2011

fDate

23-29 Oct. 2011

Firstpage

315

Lastpage

318

Abstract

Active interrogation measurements with a bremsstrahlung photon beam were taken using a hybrid coded imaging and spectroscopic identification system developed at the Naval Research Laboratory (NRL). Measurements were taken using a bremsstrahlung photon beam produced by the Photonuclear Inspection and Threat Assessment System (PITAS) bremsstrahlung photon source at the Idaho Accelerator Center´s (IAC) Pocatello Airport facility. The 3 to 7 MeV delayed gamma-ray signature for depleted uranium (DU) was observed and was not seen with a lead target. The delayed gamma-rays were localized to the position of the DU using the coded imager.

Keywords

bremsstrahlung; gamma-ray detection; uranium; Idaho Accelerator Center Pocatello Airport facility; Photonuclear Inspection And Threat Assessment System; active interrogation photon beam; bremsstrahlung photon beam; bremsstrahlung photon source; coded imager; delayed gamma-ray signature; depleted uranium; hybrid coded imaging; interrogation measurement; naval research laboratory; spectroscopic identification system; stand-off detection; Detectors; Lead; Photonics; Shape measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2011 IEEE

Conference_Location

Valencia

ISSN

1082-3654

Print_ISBN

978-1-4673-0118-3

Type

conf

DOI

10.1109/NSSMIC.2011.6154507

Filename

6154507