Share Email Print
cover

Proceedings Paper

Gamma-ray imaging for explosives detection
Author(s): G. A. de Nolfo; S. D. Hunter; L. M Barbier; J. T. Link; S. Son; S. R Floyd; N. Guardala; M. Skopec; B. Stark
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We describe a gamma-ray imaging camera (GIC) for active interrogation of explosives being developed by NASA/GSFC and NSWC/Carderock. The GIC is based on the Three-dimensional Track Imager (3-DTI) technology developed at GSFC for gamma-ray astrophysics. The 3-DTI, a large volume time-projection chamber, provides accurate, ~0.4 mm resolution, 3-D tracking of charged particles. The incident direction of gamma rays, E > 6 MeV, are reconstructed from the momenta and energies of the electron-positron pair resulting from interactions in the 3-DTI volume. The optimization of the 3-DTI technology for this specific application and the performance of the GIC from laboratory tests is presented.

Paper Details

Date Published: 1 May 2008
PDF: 7 pages
Proc. SPIE 6954, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing IX, 695404 (1 May 2008); doi: 10.1117/12.777176
Show Author Affiliations
G. A. de Nolfo, NASA Goddard Space Flight Ctr. (United States)
S. D. Hunter, UMBC/CRESST/NASA (United States)
L. M Barbier, UMBC/CRESST/NASA (United States)
J. T. Link, USRA/CRESST/NASA (United States)
S. Son, NASA Goddard Space Flight Ctr. (United States)
S. R Floyd, UMBC/CRESST/NASA (United States)
N. Guardala, Naval Surface Warfare Ctr. (United States)
M. Skopec, Naval Surface Warfare Ctr. (United States)
B. Stark, Naval Surface Warfare Ctr. (United States)


Published in SPIE Proceedings Vol. 6954:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing IX
Augustus Way Fountain; Patrick J. Gardner, Editor(s)

© SPIE. Terms of Use
Back to Top