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Methods of in vivo radiation measurement

  • US 4,976,266 A
  • Filed: 07/25/1988
  • Issued: 12/11/1990
  • Est. Priority Date: 08/29/1986
  • Status: Expired due to Fees
First Claim
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1. The method for in vivo monitoring of radiation applied to a patient, the method comprising the steps of:

  • placing a radiation source at a fixed location inside the patient'"'"'s body;

    inserting a radiation sensitive MOSFET inside the patient'"'"'s body in close proximity to said radiation source, said MOSFET having a threshold voltage that changes in accordance with the cumulative radiation dosage;

    removing said MOSFET from the body after a period of radiation; and

    measuring the change in threshold voltage caused by the radiation from said source after said MOSFET has been removed from the body.

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