Word: landsverk
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Dates: during 1947-1947
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...Latest models are no b.rger than a fountain pen. They are worn with a clip in the pocket, and indicate at any time during the day the total quantity of radiation that the wearer has absorbed and so whether it is safe to continue at work. (DR.) O. G. LANDSVERK Chicago...
...TIME'S thanks to Dr. Landsverk, and a Dosimeter to the Science editor...
...pocket model was developed by Dr. O. G. Landsverk and two aids as a wartime device (e.g., to protect troops in such hazardous spots as blasted Hiroshima). The military now thinks it is all right for civilians to know about it. The instrument's chief working parts are a small chamber, a bronze wire (charged by a battery) and a fine, platinum-coated quartz fiber one-thirtieth the thickness of a human hair. When X rays or gamma rays enter the chamber, they leave a trail of ions which collect on the wire, neutralize its charge and move...
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