Radiation monitor for an irradiation system
CA 1054260 A · Owner: Siemens Aktiengesellschaft · Inventors: Meyer, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a monitor for controlling the dose of applied radiation to, for example a patient. The monitor is comprised of a dose rate frequency changer which is connected to a pulse counter. The counter is connected to a comparator which is activated to control an off-switch for the radiation when the pulse count reaches a predetermined count. A second pulse counter is connected to the changer. This counter operates when the radiation is off. As a result any count obtained is a result of component drift in the radiation detector and the changer. The count is converted to an analog signal inverted and fed back, to the input of the changer to compensate for the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted May 8, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 8, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.