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| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 57169 | 10 June 2024 05:00:00 | Agreement State | Lost Source | The following was received from the Texas Department of State Health Services (the Department) via email: On June 11, 2024, the Department was notified by the licensee's radiation safety officer (RSO) that a 40 millicurie americium-241/beryllium (Am-241/Be) source from a Troxler 3430 moisture/density gauge could not be located. The gauge did not pass the standardization test, and was later sent to the service provider. On June 10, 2024, the service provider informed the RSO that the gauge was inspected, the cap that held the Am-241/Be source in place was no longer screwed in, and the source was missing. Radiation surveys were conducted at the facility but were unable to locate the Am-241/Be source. RSO contacted the service provider and requested a facility survey. The RSO will be interviewing their technicians and reviewing use records for the gauge in an attempt to locate where the source could have fallen out of the gauge. An exposure risk to an individual was not reported. Additional information will be provided as it is received in accordance with SA-300. TX Incident Number: 10109 THIS MATERIAL EVENT CONTAINS A 'Less than Cat 3' LEVEL OF RADIOACTIVE MATERIAL 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. 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. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf | ||
| ENS 56883 | 8 December 2023 06:00:00 | Agreement State | Agreement Stae Report - Damaged Troxler Gauge | The following information was provided by the Texas Department of State Health Services via email: On December 8, 2023, the licensee's radiation safety officer (RSO) reported a Troxler 3430 plus gauge was damaged at a job site. The gauge contains a 40 millicurie AmBe (americium-beryllium) source and an 8 millicurie cesium-137 source. The RSO stated that a technician was using the gauge in a trench to test soil compaction. The technician had completed a reading and was reporting the reading to another contractor outside the trench when the soil compacter was moved and struck the gauge. The soil compacter was moved back, and the technician went to the gauge. The only damage appeared to be to the plastic part of the case. The cesium source was in the fully shielded position. The RSO stated that the operating rod appeared to be operating properly. Dose rates at 3 feet from the gauge were 0.1 millirem per hour. The RSO stated that the gauge will be taken to their storage location and marked 'DO NOT USE.' The RSO stated that the gauge will be delivered to a service company on December 11, 2023, for inspection. No individual received an exposure that would exceed any limit. Additional information will be provided as it is received in accordance with SA-300. Texas Incident Number: 10072 Texas NMED Number: TX230057 | ||
| ENS 48643 | 2 January 2013 06:00:00 | Agreement State | Agreement State Report - Missing Troxler | The following was received from the State of Texas via email: On January 2, 2013, the Agency (State of Texas) was notified by the licensee's Radiation Safety Officer (RSO) that a Troxler model 3430 containing an 8 millicurie cesium - 137 source and a 40 millicurie americium - 241/beryllium source could not be located. The licensee's records indicated that the gauge had been returned by their technician and locked in the storage area on December 31, 2012. The licensee's tracking system, which tracks the location of their vehicles, confirmed that the truck used by the technician had been returned to the licensee's location at the close of business on December 31. The licensee conducted an inventory of all of its gauges and this was the only gauge missing. The RSO stated that the storage area had no signs of tampering. The RSO stated that they had interviewed the technician assigned to use the gauge, but the technician did not provide any information useful to recover the gauge. The RSO stated that they were in the process of notifying the police of the theft. The RSO stated that the offering of a reward would be discussed with company management. The RSO stated that the gauge was locked inside of a transportation case and that the operating rod was locked in the shielded position. The RSO stated that he did not believe there was any risk of exposure to a member of the general public. Additional information will be provided as it is received in accordance with SA-300. Texas Incident Number: I-9030 THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL 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. 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. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf |