Phosphor identification method, particularly adapted for use wit

Details Phosphor identification method, particularly adapted for use wit Phosphor identification method, particularly adapted for use wit

1974-08-12

1977-03-22

Engle, Samuel W.

Explosive and thermic compositions or charges

Structure or arrangement of component or product

149 21, 149 29, 2523011L, 2523014P, C06B 4500, C06B 4502, C06B 3900, C09K 300

Patent

active

040134903

ABSTRACT:
Phosphor-explosive material combination and method wherein a small amount of inorganic phosphor is mixed with explosive material to provide an indicia or label of information regarding the explosive, either before or after detonation of same. The phosphor can readily be located with an ultraviolet lamp even after the explosive has been detonated, and by correlating the phosphor emission spectra with data known about the explosive when it is manufactured, the explosive can be identified. Line-emitting phosphors are especially useful because of their distinctive emission characteristics, which provide a vast number of possible combinations of emissions which are correlated against the data known about the explosive when it is manufactured. Preferably the phosphor is formed as a combination of finely divided "spotter" phosphor and finely divided "coding" material held together by a binder in the form of small conglomerates, in order to facilitate initial location and later identification of same. There exists a vast number of different combinations of distinctive fluorescent emissions, and these can be combined to label any item for later identification.

REFERENCES:
patent: 3199454 (1965-08-01), Hart
patent: 3231738 (1966-01-01), Fischer
patent: 3473027 (1969-10-01), Freeman
patent: 3474730 (1969-10-01), Sneeran
patent: 3712222 (1973-01-01), Richardson
patent: 3733224 (1973-05-01), Floyd
patent: 3772200 (1973-11-01), Livesay
patent: 3835782 (1974-09-01), Griffith
patent: 3897284 (1975-07-01), Livesay

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