Method and apparatus for measuring distribution of radioactive nuclide in subject
US5672876A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1995 |
| Grant date | Sep 30, 1997 |
| Priority date | — |
| Expiry date | Aug 10, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N23/221
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention intends to measure true distribution of a radioactive nuclide in respective parts of a subject. A density of each part of a subject sample is measured by measuring the intensity of ionizing radiation for density measurement from a radioactive nuclide for density measurement, which emits the ionizing radiation to each part of the subject sample in the same amount, through the subject sample interposed midway, the intensity of ionizing radiation emitted from another radioactive nuclide existing in each part of the subject sample is measured, and the amount of another radioactive nuclide in each part of the subject sample is determined by compensating the measured intensity of the ionizing radiation from another radioactive nuclide based on the self-absorptivity of each part of the subject sample corresponding to the density thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.