Providing information
US7429739B2 · kind B2 · utility
0Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2005 |
| Grant date | Sep 30, 2008 |
| Priority date | — |
| Expiry date | Apr 9, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T7/00
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
By considering ratio of emissions at one or more pairs of energies to threshold values, the invention provides for the determination of the dispersion format of a radioactive material within a matrix, wherein said radioactive material is potentially present in a dispersion format which is self-shielding against emissions arising from said radioactive. In particular the presence of lumpy material or the confirmation that lump material is absent may be provided. The following pairs of energies: 143.8 keV and 185.7 keV; 163.3 keV and 185.7 keV; 205.3 keV and 187.5 keV may be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.