TY - GEN
T1 - A neutron based vehicle borne improvised explosive device detection system
AU - Koltick, David
AU - McConchie, Seth
PY - 2007
Y1 - 2007
N2 - The design and performance of a pulseable neutron source utilizing a D-T neutron generator and a depleted uranium reflector are presented for use in a scanning system of improvised explosive devices. Approximately half the generators 14 MeV neutron flux is used to produce a fission-like neutron spectrum similar to 252Cf. For every 14 MeV neutron entering the reflector, more than one fission-like neutron is reflected back across the surface of the reflector. Because the delayed neutron production is more than two orders of magnitude below the prompt neutron production, the source takes full advantage of the generators pulsed mode capability. Applications include all elemental characterization systems using neutron-induced gamma-ray spectroscopy. The source simultaneously emits 14 MeV neutrons optimal to excite fast neutron-induced gamma-ray signals, such as from carbon and oxygen, and fission-like neutrons optimal to induce neutron capture gamma-ray signals.
AB - The design and performance of a pulseable neutron source utilizing a D-T neutron generator and a depleted uranium reflector are presented for use in a scanning system of improvised explosive devices. Approximately half the generators 14 MeV neutron flux is used to produce a fission-like neutron spectrum similar to 252Cf. For every 14 MeV neutron entering the reflector, more than one fission-like neutron is reflected back across the surface of the reflector. Because the delayed neutron production is more than two orders of magnitude below the prompt neutron production, the source takes full advantage of the generators pulsed mode capability. Applications include all elemental characterization systems using neutron-induced gamma-ray spectroscopy. The source simultaneously emits 14 MeV neutrons optimal to excite fast neutron-induced gamma-ray signals, such as from carbon and oxygen, and fission-like neutrons optimal to induce neutron capture gamma-ray signals.
KW - Gamma ray spectroscopy
KW - Neutron elemental analysis
KW - Neutron interrogation
UR - http://www.scopus.com/inward/record.url?scp=47849086572&partnerID=8YFLogxK
U2 - 10.1109/CCST.2007.4373503
DO - 10.1109/CCST.2007.4373503
M3 - Conference contribution
AN - SCOPUS:47849086572
SN - 1424411297
SN - 9781424411290
T3 - Proceedings - International Carnahan Conference on Security Technology
SP - 292
EP - 300
BT - Proceedings 2007 41st Annual IEEE International Carnahan Conference on Security Technology, ICCST
T2 - 2007 41st Annual IEEE Carnahan Conference on Security Technology, ICCST
Y2 - 8 October 2008 through 11 October 2008
ER -