Inventors:
Lee A. Hilbert - Athens AL
George R. Edlin - Huntsville AL
Leon H. Riley - Huntsville AL
Thomas G. Miller - Madison AL
Wilford W. Gebhart - Decatur AL
Charles L. Johnson - Madison AL
Assignee:
The United States of America as represented by the Secretary of the Army - Washington DC
International Classification:
G01T 300
G01T 500
Abstract:
A laser pulse fiber optic neutron detector which is capable of discriminating against background neutrons and gamma rays while measuring both the energy of an incoming neutron and its direction has a sensor having a plurality of vertically-stacked organic fiber light pipes and a reflector at one end of the light pipes. Ionized tracks in the light pipes caused by neutron radiation are detected by directing pulsed laser radiation into one end of the light pipes and detecting the laser radiation backscattered and reflected from the light pipes.