Indium-111 is produced by a cyclotron when a bombardment of particles hits the nucleus causing an imbalance of the proton to neutron ratio resulting in an unstable nucleus and a radioactive element.
The Indium-111 is stored in vials within lead (at least 4mm) and plastic containers called pigs. These containers ensure that no gamma or x-ray emissions escape. In order to properly store these vials they must be kept between 41°-86°F inside the lead containers. (1)
Precautions
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A lead shield must be placed over the syringe containing the Indium-111 before handling. Also, vials containing Indium-111 should not be picked up directly. The use of crucible tongs is needed in order to grip the neck of the vial. Gloves must be worn at all times along with personal dosimeters, which detect radiation. (1)
Disposal
The half-life of Indium-111 is 2.8 days, so the radioactive material should be left in a secure, locked area until the radioactivity has decayed to levels no larger than background on the Geiger counter, a device used to detect radiation. After which time, they may be placed in the normal trash recepticals.(1)
*Any items contaminated with blood must be placed in a separate labeled container. The same requirement is enacted for needles.*
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Production & Disposal
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