Method of, and apparatus for, monitoring radioactivity
US4298796A · kind A · utility
Inventors
Key dates
| Filing date | Jun 22, 1979 |
| Grant date | Nov 3, 1981 |
| Priority date | — |
| Expiry date | Jun 22, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/2964
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The radioactivity of discrete areas of radioactive material on a surface region of a support layer is monitored by converting the radioactivity emitted by these areas into light emissions with the use of a suitable scintillant, and scanning the surface region with at least one photodetector in a plurality of discontinuous steps. Each step places the support layer and the or each photodetector in relative positions in which the or each photodetector detects at least a proportion of the light emissions activated by a respective one of the areas of radioactive material over a finite interval of time. A plurality of output signals are therefore produced by the photodetector(s), each of which is proportional to the radioactivity of a respective one of the areas of radioactive material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.