EXTERNAL RADIATION HAZARDS AND SHIELDING: The gamma exposure constant is 1.86 R-cm2/mCi-hr. The amount of lead necessary to reduce the exposure rate by a factor of ten is 0.024 cm. The electrons emitted are at a low energy and do not constitute an external hazard. HAZARDS IF INTERNALLY DEPOSITED: Contamination of facilities and bodies is a more significant hazard than the external dose -- use of gloves and frequent monitoring while working are important. The annual limit of intake (oral) for this nuclide, based upon 10% of the dose limit to the kidneys is 27 uCi. stanford.edu/dept/EHS/prod/researchlab/radlaser/RSDS_sheets/Cd-109.pdf
Posted on: Mon, 01 Jul 2013 04:07:41 +0000
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