Neutron Imaging Camera

Author

De Nolfo, Georgia A. ; Hunter, Stanley D. ; Link, Jason T. ; Son, Seunghee ; Guardala, Noel A.

Author_Institution

NASA/Goddard Space Flight Center, Greenbelt, MD, USA

fYear

2009

fDate

11-12 May 2009

Firstpage

282

Lastpage

286

Abstract

We describe the neutron imaging camera (NIC) being developed for DTRA applications by NASA/GSFC and NSWC/CD. The NIC is based on the three-dimensional track imager (3-DTI) technology developed at GSFC for gamma-ray astrophysics applications. 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 fast neutrons, E_n gsim 0.1 MeV, are reconstructed from the momenta and energies of the proton and triton fragments resulting from ³He(n,p)³H interactions in the 3-DTI volume. We present angular resolution performance of the NIC derived from accelerator tests.

Keywords

gamma-ray apparatus; gamma-ray astronomy; neutron detection; time projection chambers; DTRA application; GSFC; NASA-GSFC; NSWC-CD; accelerator test; angular resolution performance; gamma-ray astrophysics; interaction; neutron imaging camera; proton; three-dimensional track imager technology; time-projection chamber; triton; Astrophysics; Cameras; Image reconstruction; Life estimation; NASA; Neutrons; Optical imaging; Particle tracking; Protons; Space technology; SNM detection; fast neutrons; neutron imagaing;

fLanguage

English

Publisher

ieee

Conference_Titel

Technologies for Homeland Security, 2009. HST '09. IEEE Conference on

Conference_Location

Boston, MA

Print_ISBN

978-1-4244-4178-5

Type

conf

DOI

10.1109/THS.2009.5168047

Filename

5168047