ENS 56201

v t e ENS Event
07:00 Sep 29, 2022
Title	Leaking CS-131 Brachytherapy Source
Event Description	The following information was received via email from the Washington Office of Radiation Protection: On 11/2/2022, a licensee, IsoRay Medical - License Number: WN-L0213-1 reported a Cs-131 Brachytherapy source, model CS-1, leaking at customer's facility. A customer detected contamination on equipment used during a procedure with Cs-131 seeds. The customer was not initially able to identify the isotope of the contamination using their equipment, however they were able to perform a half-life estimation using dose measurements on a collimated container loaded with all the contaminated items from the procedure. The decay rate was roughly in line with Cs-131. The customer indicated that as part of their own procedures, the order, which arrived as a non-sterile mick pig, was opened and surveyed. No contamination was found at that time. A thorough investigation is ongoing. Washington Incident Number: WA-22-021

ENS 56201 +/-
Where
Isoray Medical Richland, Washington (NRC Region 4)
License number:	WN-L0213-1
Organization:	Wa Office Of Radiation Protection
Reporting

Agreement State
Time - Person (Reporting Time:+824.97 h34.374 days <br />4.911 weeks <br />1.13 months <br />)
Opened:	Raj Maharjan 15:58 Nov 2, 2022
NRC Officer:	Donald Norwood
Last Updated:	Nov 2, 2022
56201 - NRC Website
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v t e Emergency Notification System
Isoray Medical with Agreement State
WEEKMONTHYEAR2022-09-29T07:00:00 [Table view]
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