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Fast, high-rate, position-sensitive absolute dosimeter for ion beam therapy

  • US 9,739,892 B2
  • Filed: 04/09/2014
  • Issued: 08/22/2017
  • Est. Priority Date: 04/09/2014
  • Status: Active Grant
First Claim
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1. A radiation detector for absolute monitoring of radiation doses delivered by an ion beam comprising:

  • a gas-tight housing with windows in the beam path;

    a gaseous medium within the housing, wherein scintillation light is emitted by the gaseous medium after it is traversed by the ion beam;

    one or more photo-detectors located within or around the gas-tight housing, the one or more photo-detectors configured to convert collected scintillation light into electric current;

    further comprising a processor configured to generate a digitized electronic signal whose magnitude is proportional to the total amount of light collected by the one or more photo-detectors;

    wherein the ion beam generates output data from the processor, the output data being indicative of a dose delivered by the ion beam to which the radiation detector was exposed, the output data being accurate to within 2% of the actual dose.

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