Gamma radiation stand-off detection, tamper detection, and authentication via resonant meta-material structures
US10393885B2 · kind B2 · utility
1Cited by
13References
40Claims
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Key dates
| Filing date | Apr 20, 2016 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | May 11, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249921
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Resonant meta-material structures are defined by metallic, dielectric or other materials that form nanoshells or nanomeshes that can be situated proximate to ionizing-radiation-sensitive layers so as to provide ionizing-radiation-dose-dependent optical properties. Such meta-material structures can also define aligned or periodic, semi-random, or other arrangements of nanostructures that are coupled to or include stressed layers. Detection of optical radiation from such structures is used to determine gamma radiation dose or to detect a disturbance of the nanostructure indicating tampering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.