Radiation dose measuring method and apparatus with nuclide discrimination function
US4862004A · kind A · utility
17Cited by
8References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1988 |
| Grant date | Aug 29, 1989 |
| Priority date | — |
| Expiry date | Feb 24, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/06
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and portable apparatus for measuring radiation dose and identifying a source radionuclide. Energy correction to calibrate detected charge to .gamma.-ray energy level is made through the use of naturally occurring radiation from 40K in a potassium compound KCl. One embodiment includes a portable scintillator and photomultiplier (PMT) along with an accumulation memory, an input means, a signal processing circuit, a memory and an output means. A warning function informs of an abnormality when the difference between the measured radiation data and the standard data in the device memory exceeds a predetermined value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.