Thermoluminescent material
US4248731A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1979 |
| Grant date | Feb 3, 1981 |
| Priority date | — |
| Expiry date | Jan 29, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/63
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A phosphor for a thermoluminescent radiation dosimeter, comprising lithium tetraborate as a base material and copper as an activator. In addition to these components lithium octaborate may further be included as a base material, and silver as an activator. The phosphors according to the invention have an effective atomic number quite near to that of tissue, so that it is suitable for measuring the radiation dose absorbed by a tissue specimen. Further they exhibit emission a spectra peak at 368 m.mu. which is convenient for measuring the response of widely used photomultiplier tubes. The sensitivities to .gamma.-rays are also improved, compared to the known lithium borate phosphor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.