sealed radioactive source
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sealed radioactive source
A generic term for any form of therapeutic radiation which is enclosed in delivery devices (cylinders, pellets, pins, plaques, rods, tubes, and wires), and left in place either temporarily (Sr/Y90, Ru106, Cs137, Ir192) or permanently (I125, Pd103, Au198).Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.