X-ray or gamma ray systems or devices – Specific application – Diffraction – reflection – or scattering analysis
Patent
1991-11-14
1992-12-29
Porta, David P.
X-ray or gamma ray systems or devices
Specific application
Diffraction, reflection, or scattering analysis
378 57, 378 62, G01N 23201
Patent
active
051757567
ABSTRACT:
A device for detecting nitrogenous, phosphoric, chloric and/or oxygenous substances inside an object, particularly of explosives or addictive substances in pieces of luggage. A nuclear activating device stimulates the emission of positron radiation from nitrogen, phosphorous, chlorine and/or oxygen, and an activity measuring device records positron-electron annihilation radiation.
REFERENCES:
patent: 4864142 (1989-09-01), Gomberg
patent: 4941162 (1990-07-01), Vartsky et al.
Bastian Ingbert
Kogel Gottfried
Moritz Nikolaus
Pongratz Hans-Wolfgang
Sperr Peter
Messerschmitt-Bolkow-Blohm GmbH
Porta David P.
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