Nuclear resonances in activation analysis, and particularly, its

Details Nuclear resonances in activation analysis, and particularly, its Nuclear resonances in activation analysis, and particularly, its

1993-04-27

1994-06-21

Dzierzynski, Paul M.

Radiant energy

Invisible radiant energy responsive electric signalling

2503581, 2503591, 378 45, 378 53, 378 88, G01N 23221, G01N 2322

Patent

active

053230043

ABSTRACT:
An apparatus and method for detecting the presence of an element of interest within an object. The object is positioned where a beam of gamma rays of the required energy are directed to be scattered by the element of interest. The gamma rays are provided by excited atoms of the element of interest. The excited atoms result from the reaction of hydrogen or heavier ions and a suitable target. The excited atoms deexcite, releasing gamma rays which are scattered by the element of interest within the object. The scattered gamma rays are detected, output signals are produced, processed and analyzed to determine the amount of the element of interest within the object. A preferred embodiment relates to the detection of nitrogen-based explosives in luggage.

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