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U.S. Department of Energy
Office of Scientific and Technical Information

Personal dosimeter with reminder time

Patent ·
OSTI ID:5108291
A device for individually checking exposure to radiation is sensitive to the radiation and produces an alarm (acoustic and/or optical) when a threshold radiation dose is reached. An included time-measuring device furthermore warns the user when a surveillance period has expired. The radiation sensitive device may use an electret while the time-measuring device uses the drop in voltage of a battery occurring at the end of the discharge of the battery.
Assignee:
EDB-82-145685
Patent Number(s):
US 4320393
OSTI ID:
5108291
Country of Publication:
United States
Language:
English