Phosphor combination and method, particularly adapted for use wi

Details Phosphor combination and method, particularly adapted for use wi Phosphor combination and method, particularly adapted for use wi

1975-09-08

1977-08-02

Engle, Samuel W.

Explosive and thermic compositions or charges

Structure or arrangement of component or product

Solid particles dispersed in solid solution or matrix

149 21, 149 29, 427157, C06B 4506, C06B 4502, C06B 3900, C03C 328

Patent

active

RE0293342

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 emission 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 emission, and these can be combined to label any item for later identification.

REFERENCES:
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patent: 3619265 (1971-11-01), Hammond
patent: 3772200 (1973-11-01), Livesay
patent: 3897284 (1975-07-01), Livesay

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