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Title: Diffraction gratings used as identifying markers

Abstract

A finely detailed diffraction grating is applied to an object as an identifier or tag which is unambiguous, difficult to duplicate, or remove and transfer to another item, and can be read and compared with prior readings with relative ease. The exact pattern of the diffraction grating is mapped by diffraction moire techniques and recorded for comparison with future readings of the same grating. 7 figures.

Inventors:
;
Publication Date:
OSTI Identifier:
7102255
Patent Number(s):
US 5003600; A
Application Number:
PPN: US 7-388880
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-107314
DOE Contract Number:  
AC07-76ID01570
Resource Type:
Patent
Resource Relation:
Patent File Date: 3 Aug 1989
Country of Publication:
United States
Language:
English
Subject:
98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; DIFFRACTION GRATINGS; PERFORMANCE; IDENTIFICATION SYSTEMS; DESIGN; RELIABILITY; NUCLEAR MATERIALS MANAGEMENT; PATTERN RECOGNITION; GRATINGS; MANAGEMENT; 055001* - Nuclear Fuels- Safeguards, Inspection, & Accountability- Technical Aspects

Citation Formats

Deason, V.A., and Ward, M.B.. Diffraction gratings used as identifying markers. United States: N. p., 1991. Web.
Deason, V.A., & Ward, M.B.. Diffraction gratings used as identifying markers. United States.
Deason, V.A., and Ward, M.B.. Tue . "Diffraction gratings used as identifying markers". United States.
@article{osti_7102255,
title = {Diffraction gratings used as identifying markers},
author = {Deason, V.A. and Ward, M.B.},
abstractNote = {A finely detailed diffraction grating is applied to an object as an identifier or tag which is unambiguous, difficult to duplicate, or remove and transfer to another item, and can be read and compared with prior readings with relative ease. The exact pattern of the diffraction grating is mapped by diffraction moire techniques and recorded for comparison with future readings of the same grating. 7 figures.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 26 00:00:00 EST 1991},
month = {Tue Mar 26 00:00:00 EST 1991}
}