Radioactive method of detection of hidden explosives
First Claim
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1. THE METHOD OF DETECTION OF HIDDEN EXPLOSIVES IN OR ON CARRIERS SUCH AS AIRLINE BAGGAGE AND AIRLINE PASSENGERS WHICH COMPRISES ASSOCIATING RADIOACTIVE MATERIAL WITH AT LEAST ONE CONSTITUENT OF AN EXPLOSIVE IN SUCH FASHION THAT EACH UNIT OF SUCH CONSTITUENT IS TAGGED BY THE RADIOACTIVE MATERIAL, SAID RADIOACTIVE MATERIAL BEING OPERATIVE TO CAUSE SUBSTANTIALLY SIMULTANEOUS EMISSION OF A PLURALITY OF GAMMA RAYS DURING DECAY THEREOF, DETECTING GAMMA RAYS AT A PLURALITY OF LOCATIONS ADJACENT AN AREA THROUGH WHICH SUCH CARRIERS MUST PASS, AND FURNISHING AN INDICATION WHEN GAMMA RAYS ARE SUBSTANTIALLY SIMULTANEOUSLY DETECTED AT A PLURALITY OF SUCH LOCATIONS.
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1 Claim
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1. THE METHOD OF DETECTION OF HIDDEN EXPLOSIVES IN OR ON CARRIERS SUCH AS AIRLINE BAGGAGE AND AIRLINE PASSENGERS WHICH COMPRISES ASSOCIATING RADIOACTIVE MATERIAL WITH AT LEAST ONE CONSTITUENT OF AN EXPLOSIVE IN SUCH FASHION THAT EACH UNIT OF SUCH CONSTITUENT IS TAGGED BY THE RADIOACTIVE MATERIAL, SAID RADIOACTIVE MATERIAL BEING OPERATIVE TO CAUSE SUBSTANTIALLY SIMULTANEOUS EMISSION OF A PLURALITY OF GAMMA RAYS DURING DECAY THEREOF, DETECTING GAMMA RAYS AT A PLURALITY OF LOCATIONS ADJACENT AN AREA THROUGH WHICH SUCH CARRIERS MUST PASS, AND FURNISHING AN INDICATION WHEN GAMMA RAYS ARE SUBSTANTIALLY SIMULTANEOUSLY DETECTED AT A PLURALITY OF SUCH LOCATIONS.
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Current AssigneeWilliam H. Johnston
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Original AssigneeWilliam H. Johnston
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InventorsJohnston, William H.
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Application NumberUS04/221,765Time in Patent Office1,370 DaysField of SearchUS Class Current250/303CPC Class CodesG01V 5/26 Passive interrogation, i.e....
