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The most severe case …
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Occurred in 1992 ;
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The source ( HDR Iridium) became detached
from the drive mechanism during an anorectal
cancer treatment
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Conflicting signals; the area monitor actually
detected the radiation, while the equipment
indicated « source shielded »
•
Unfortunately, previous radiation monitor
malfunctions encouraged misinterpretation and
induced the staff not to trust it …