Reading: CRA IPEC Retirement Analysis (summary, taken from full text at ) Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks.Connection to Future City Lab: Living with Nature: How can New York City enhance its natural environment and cope with climate change?Ĭonnection to World City: On the Brink, 1970-1980īe able to discuss some of the positives and negatives of retiring the Indian Point Energy Centerīe able to discuss some of the options available to replace the Indian Point Energy Center Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. This event is still under investigation by the South Carolina Department of Health and Environmental Control." "Department inspectors were dispatched to the facility on 05/17/23, and were unable to locate the missing sealed source. The manual brachytherapy sealed source could not be accounted for. Several other area surveys were also performed after the procedure was completed. The cart, floor, physician hands, nurse hands, and scrubs were all surveyed and no exposure was detected above background. The medical physicists used a Geiger-Mueller counter to immediately survey the sterile cart and surrounding areas. When assessing the seeds in the container, it was observed that one of the two I-125 seeds in this strand was missing. This strand was ejected into the transfer device then pushed out into the sterile shielded shipping container so that the loose seeds could be counted. The licensee reported that during the procedure, an incorrectly configured strand was identified in the QuickLink device. The licensee reported that during a prostate seed implant procedure that occurred on 04/21/23, a single seed was possibly lost and remains unaccounted for. Model STM 1251 with an activity of 0.34 mCi (12.58 MBq). The sealed source is a Bard Brachytherapy, Inc. "The Department was notified on 05/09/23, that that one (1) Iodine-125 manual brachytherapy sealed source was lost or missing. The following was received by email from the South Carolina Department of Health and Environmental Control (The Department): The licensee surveyed the pathology department and the laundry facility and were not able to find the seed."ĪGREEMENT STATE - LOST BRACHYTHERAPY SOURCE Prior to discovery of the missing seed, the pathology department linens were taken to a laundry facility where the towel was washed. The seed is suspected to have been placed on a surgical towel and never put into the source vial. "An Iodine-125 localization seed (approximately 270 microcuries) was lost following removal from the specimen. The following was received by email from the Minnesota Department of Health: For additional information go to ĪGREEMENT STATE REPORT - LOST IODINE LOCALIZATION SEED Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' LEVEL OF RADIOACTIVE MATERIAL Corrective actions include identifying each seed with a unique tracking number, updating use procedures, designating waste containers for seed use only, daily seed tracking when seeds are used, and retraining for all seed technicians. Each medical procedure performed with this specific seed lot was audited with no abnormalities noted. The seed was most likely thrown away in a sharps container and is not believed to be stolen. An extensive search was performed but the seed was not located. The lost source was identified during an inventory performed on May 9, 2023. The Breast Center of Greensboro reported one lost brachytherapy seed (Iodine-125 in a preloaded 7 cm syringe, initial activity 255 microcuries, final activity 176 microcuries, order number 202385558, lot number 85558, satisfactory leak test on April 4, 2023) to the North Carolina Department of Health and Human Services on May 12, 2023. The following is a summary of an email received from the North Carolina Department of Health and Human Services: AGREEMENT STATE REPORT - LOST MEDICAL SOURCE
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