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| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 52644 | 28 March 2017 12:00:00 | Agreement State | Agreement State Report - Stolen Troxler Moisture Denisty Gauge | The following information was provided by the State of Texas via email: On March 28, 2017, the Agency (Department of State Health Services) was notified by the licensee that a Troxler Model 3411 moisture/density gauge was stolen from one of its trucks. The gauge contains a 40 milliCurie americium-241 source and an eight milliCurie cesium-137 source. The gauge had been used at a job site the day before by a technician and taken to their home (located in Fort Worth) for the night, stored (locked) in the bed of the truck. Since the operating rod for the cesium source was locked in the shielded position and the case was also locked, the licensee does not believe a member of the general public would receive any significant exposure. The radiation safety officer stated he would provide additional information to the Agency as soon as he completed his interview with the technician. Additional information will be provided as it is received in accordance with SA-300. TX Incident #: I-9475
The following information was provided by the State of Texas via email: The stolen moisture density gauge was actually a Troxler 3430 versus a Troxler 3411 as described in the above paragraph. Notified R4DO (Hipschman), NMSS Events Notification group, ILTAB, and Mexico via email. 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 45267 | 17 August 2009 09:00:00 | Agreement State | Agreement State Report - Radiography Source Disconnected from Its Cable | The following information was obtained from the State of Texas via email: On the morning of August 17, 2009, a 79.1 Curie Ir-192 source in a Sentinel Model 880 exposure device (S/N D5517) could not be retracted into the fully shielded position. After several attempts to back the source out, it was surmised that the source remained at the end of the source tube and the Radiation Safety Officer (RSO) was notified. A 2 mR/hr line was established by the radiographers and the licensee's report indicated that visual surveillance was maintained at all times. The RSO then utilized additional shielding and remote handling tools to retrieve the source and place it into another camera. It was determined after the recovery that the ball shank broke from the drive cable leaving the source pigtail in the source tube. The RSO reported that all personnel were monitored with direct reading devices and no exposures exceeded regulatory limits. Source: QSA Global model 424-9, Serial #56552B Texas Incident Report I-8658 | ||
| ENS 41744 | 3 June 2005 05:00:00 | Agreement State | Agreement State Report - Damaged Moisture Density Gauge | The gauge was damaged by a construction vehicle while the moisture density gauge was in use. The probe was not extended at the time of the accident. There was no release from the radioactive source. The state will follow up with the licensee. Troxler Serial 28753 Sources: Am-241 40milliCuries Cs-137 8 milliCuries Texas Incident Number: I-8235 | ||
| ENS 41554 | 18 January 2005 06:00:00 | Agreement State | Agreement State - Overexposure | The following information was provided by the Texas Department of State Health Services via E-mail (state text in quotes): Radiography was conducted at both field and fixed locations during the December (2004) monitoring period. The badge of (the radiographer trainee) was the only high badge for the Licensee during the monitoring period. The Radiography Trainer claims that his pocket dosimeter and alarming rate meter showed no unusual activity during the monitoring period. All exposure devices were leak tested December 30, 2004, with no leakage in excess of applicable limits being exceeded - no leakage. The Radiographer Trainer was on two crews during the monitoring period. Both other crew members had normal exposures for the monitoring period. No explanation for a possible source of exposure to the badge was offered by the Licensee or the wearer of the badge. The Licensee was cited for violating the Deep dose annual exposure limits for calendar year 2004. The trainee was seen by a physician however, the blood work results are not yet available. As corrective action, the licensee has notified all radiographers to carefully monitor their pocket dosimeters and alarming rate meters, and to keep their personal monitoring badges away from sources of radiation. The four cameras used contained Ir-192 (72.4 Ci, 81.5 Ci, 34.1 Ci, and 39.4 Ci). Total dose received by the radiographer trainee was 11.885 REM DDE for December 2004 and 12.771 REM DDE for the annual monitoring period. Texas Incident # I-8199. |