Process for incorporating a novel nuclear signature on currency

Details Process for incorporating a novel nuclear signature on currency Process for incorporating a novel nuclear signature on currency

1985-06-17

1987-04-28

Church, Craig E.

Printed matter

Method

Identifying

2504921, 378 44, 378190, 378 1, 378 70, 283 57, 283901, 283904, B42D 1500, G09F 302, C08J 102

Patent

active

046608591

ABSTRACT:
A new process for marking currency to permit easy and positive authentication at a later date comprising exposing a small region of the currency to bombardment by high energy neutrons for a short period, treating the exposed small region with a chemical reagent which reacts with the treated area to form tiny holes which can later be used for authentication. Also provide is a method for authentication which comprises exposing the marked currency to monochromatic X-rays, allowing the transmitted beam to impinge upon a fluorescent screen which will show shiny dots where the beam has reached the screen, said dots corresponding to the tiny holes in the marked currency.

REFERENCES:
patent: 3802101 (1974-04-01), Scantlin
patent: 4455039 (1984-06-01), Weintzen et al.
patent: 4504084 (1985-03-01), Jauch

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