Method of radioactivity analysis
US4016418A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 1976 |
| Grant date | Apr 5, 1977 |
| Priority date | — |
| Expiry date | Feb 12, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/178
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for determining the source strength of a radioactive sample such as iodine-125 or cobalt-60, which emit pairs of quanta of radiation in coincidence, or near coincidence, and for determining the counting efficiency of a detection instrument analyzing such samples. A first counting channel is used to count events attributable to single quanta, a second counting channel is used to count events attributable to coincident pairs of quanta, and the sample source strength is computed from the results of measurement in these two counting channels. Then, the counting efficiency in a third channel designed for subsequent use in analyzing test samples may be determined from the counting of events in the third channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.