Method and device for sampling radiation from X-ray machines for analysis
US4392240A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1981 |
| Grant date | Jul 5, 1983 |
| Priority date | — |
| Expiry date | Oct 14, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG21K1/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and a device for sampling a radiation field emitted from an X-ray machine for determining certain operational characteristics of the machine. A cassette container is disposed at a predetermined position relative to a radiation field of the X-ray machine. The cassette container houses a removable holder containing one or more thermo-luminiscent crystals associated with a respective one or more crystal filters supported in the container. The filters have different densities from one another. An X-ray sensitive film is also removably supported under a further plurality of filters, also having different densities from one another, whereby the film and the crystals are subjected to filtered radiation from the X-ray beam and undergo a physical change proportional to the strength of radiation received so that analysis of same will provide a determination of the size of the radiation field, the dose of radiation, the filtration of the X-ray radiation emitting from the machine, and the operating kilovoltage applied to an X-ray source of the machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.