Direct reading dosimeter

Patent · Mon Nov 19 23:00:00 EST 1984

OSTI ID:5865295

Thomson, I

A direct reading dosimeter having a range such that it can be used by personnel workers in the medical, nuclear and industrial fields, and provides and indication of dose rate as well as total received dosage. The dosimeter uses a semiconductor sensor of MOS or bipolar transistor or MOS capacitor form which traps positive charge under the influence of ionizing radiation. A current is applied to the sensor substrate, the voltage across a portion of the substrate is sensed, differentiated and displayed. The dosimeter circuit can be integrated and packaged in a wrist watchcase, in a probe, or other convenient form.

• Assignee: Canadian Astronautics Limited (Canada)
• Patent Number(s): US 4484076
• OSTI ID: 5865295
• Country of Publication: United States
• Language: English

Related Subjects

440102* -- Radiation Instrumentation-- Radiation Dosemeters
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CAPACITORS
DESIGN
DOSEMETERS
DOSES
DOSIMETRY
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
INTEGRATED CIRCUITS
MEASURING INSTRUMENTS
MEDICINE
MICROELECTRONIC CIRCUITS
MOS TRANSISTORS
NUCLEAR MEDICINE
RADIATION DOSES
SEMICONDUCTOR DEVICES
TRANSISTORS