Method for monitoring a dose of penetrating radiation absorbed by an object
US6452203B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1999 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Oct 26, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/2012
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for monitoring a dose of penetrating radiation absorbed by an object, including the steps of providing the object with a device for absorbing penetrating radiation, including a storage phosphor for storing energy from the penetrating radiation; at predetermined intervals, coupling the storage phosphor to a source of stimulation light in such a way that the stimulation light impinges on the phosphor; activating the source of stimulation light so as to cause the storage phosphor to emit an amount of fluorescent light in proportion to an amount of stored energy; reading the amount of fluorescent light and converting it into an electric signal value; storing electric signal value(s) obtained at the predetermined intervals and processing them so as to evaluate a total amount of radiation absorbed by the object; comparing the total amount with a predefined threshold value for obtaining a difference value; and displaying the difference value on a decentralized display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.