Detection of subsurface fissionable nuclear contamination throug

Details Detection of subsurface fissionable nuclear contamination throug Detection of subsurface fissionable nuclear contamination throug

1994-10-06

1996-02-27

Fields, Carolyn E.

Radiant energy

Geological testing or irradiation

2502691, 25039001, 25039004, G01V 512

Patent

active

054951062

ABSTRACT:
A photoneutron detection apparatus comprises an X-ray generator and a neutron detector adapted for placement in proximity to subsurface soil. The X-ray generator produces timed pulses of X-ray photons having a range of electronically controlled energies which penetrate the subsurface soil to produce photoneutron emissions that are received by the neutron detector. The neutron detector generates a signal representative of the neutron flux. A signal analysis system time correlates the signal with the timed X-ray pulses to determine the presence of selected contaminants.

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patent: 4251726 (1981-02-01), Alvarez
patent: 5057268 (1991-10-01), Muller
Minac 4-6, "Portable High-Energy X-Ray Systems", brochure, Schonberg Radion Corp., 1991.

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