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|Physical Half Life||8.04 Days|
|Maximum Beta Energy||606keV|
|Range of Maximum Energy Beta Particle||n/a|
|Dose Rate at 1cm fro a 1mCi Beta Point Source||n/a|
|Most Prominent Gamma Photons||364keV
|Gamma Ray Exposure Rate at 1cm from a 1mCi Point Source||2.16R/h|
|Annual Limit on Intake - ALI (oral)*||0.03mCi|
|Type and Thickness of Shielding Recommended for mCi Amounts||lead 2 inch|
*ALI-intake of a given radionuclide which would result in a committed effective dose equivalent of 5 rems or a committed dose equivalent of 50 rems to an organ or tissue.
For further information concerning Iodine-131 contact William Fendt at WFendt@udel.edu or call 831-1434.