Methods of in vivo radiation measurement

Details Methods of in vivo radiation measurement Methods of in vivo radiation measurement

1988-07-25

1990-12-11

Smith, Ruth S.

Surgery

Truss

Pad

600 3, 25037007, 25037014, 250371, G01T 1161

Patent

active

049762664

ABSTRACT:
Methods of and apparatus for in vivo radiation measurements relay on a MOSFET dosimeter of high radiation sensitivity with operates in both the passive mode to provide an integrated dose detector and active mode to provide an irradiation rate detector. A compensating circuit with a matched unirradiated MOSFET is provided to operate at a current designed to eliminate temperature dependence of the device. Preferably, the MOSFET is rigidly mounted in the end of a miniature catheter and the catheter is implanted in the patient proximate the radiation source.

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