Method of detecting an object in an examination zone, and device

Details Method of detecting an object in an examination zone, and device Method of detecting an object in an examination zone, and device

1997-06-03

1999-11-16

Hannaher, Constantine

Radiant energy

Geological testing or irradiation

378 88, G01N 23203

Patent

active

059862572

ABSTRACT:
A method of detecting an object in an examination zone is well-suited for detecting land mines buried in the soil. The mean atomic numbers of the object is different from that of the examination zone. The examination zone is irradiated by gamma radiation. The annihilation radiation thus generated is measured and evaluated. The gamma radiation, which is sufficiently strong to generate electron-positron pairs, amounts to less than 10 MeV. The radiation generated in the examination zone by the gamma radiation beam is detected by a plurality of detector elements, which are arranged in such a manner that they can always detect only a respective segment of the gamma radiation beam.

REFERENCES:
patent: 5115459 (1992-05-01), Bertozzi
patent: 5729582 (1998-03-01), Ham et al.

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