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The following information was provided by … The following information was provided by the Texas Department of State Health Services (the Group) via email:</br>On February 21, 2023, the Group was notified by the licensee's radiation safety officer (RSO) that a cobalt-60 source was stuck in the unshielded position. The source is used in a teletherapy unit for non-human experimental irradiation. The source is pointed towards the floor. The RSO stated they contacted their service company and was told it is probably caused by low air pressure as air pressure is used to drive the source. The RSO stated the source/unit was located in the basement of the facility. The RSO stated they performed radiation surveys in adjoining rooms and the room above where the exposed source is located, and all dose rates were normal (less than 200 microrem/hr). The service provider will be at the licensee's location on February 23, 2023, to inspect the unit. The access door has been locked and 'Caution' tape has been placed on the door jam. No over exposures have occurred due to this event. Additional information will be provided as it is received in accordance with SA-300.</br>Texas Incident Number: I-9991</br>* * * UPDATE ON 02/22/23 AT 2049 EST FROM ART TUCKER TO KERBY SCALES * * *</br>The following update was received from Texas Department of State Health Services (the Agency) via email:</br>On February 22, 2023, the licensee's RSO notified the Agency that they had just talked with the service company that would retrieve the source and discussed the operation. The job is expected to start at 0830 CST on February 23, 2023. The RSO stated the individual will enter the room wearing a Personal Radiation Dosimeter (PRD), an OSL (Optically Stimulated Luminescence) dosimeter, and an Instadose for exposure monitoring. Alarms will be set on the PRD. The RSO stated they will have a pre-job safety briefing before the technician enters the room and will establish turnback values for the job. The technician will enter the room and rotate the source head to point the source away from them. They will then force the source back into the shield. The service company estimates the technician will receive 500 millirem for the job. The RSO stated the room has video surveillance and will also have audio capabilities. The RSO stated the job is anticipated to take less than 15 minutes. The RSO will notify the Agency when the technician enters the room for the first time and leaves the room when the job is completed. The Agency has requested additional information.</br>* * * UPDATE ON 02/23/23 AT 1307 EST FROM ART TUCKER TO IAN HOWARD * * *</br>The following update was received from Texas Department of State Health Services (the Agency) via email:</br>On February 23, 2023, the licensee notified the Agency that the service company was able to return the source to the fully shielded position by manipulating the systems air pressure. No individual received any significant radiation exposure from the operation. Additional information will be provided as it is received in accordance with SA-300.</br>Notified R4DO (Roldan-Otero) and NMSS Events Notification via email.</br>* * * UPDATE ON 02/28/23 AT 2250 EST FROM ART TUCKER TO ERNEST WEST * * *</br>The licensee's radiation safety officer provided the following additional information: `(The teletherapy unit that had a stuck source) is a Theratron 780C, and it was the Numatics Mark 8 solenoid valve that failed.'</br>Additional information will be provided as it is received in accordance with SA-300.</br>Notified R4DO (Vossmar) and NMSS Events Notification via email.r) and NMSS Events Notification via email.
06:00:00, 21 February 2023 +
56,377 +
21:35:00, 21 February 2023 +
06:00:00, 21 February 2023 +
The following information was provided by … The following information was provided by the Texas Department of State Health Services (the Group) via email:</br>On February 21, 2023, the Group was notified by the licensee's radiation safety officer (RSO) that a cobalt-60 source was stuck in the unshielded position. The source is used in a teletherapy unit for non-human experimental irradiation. The source is pointed towards the floor. The RSO stated they contacted their service company and was told it is probably caused by low air pressure as air pressure is used to drive the source. The RSO stated the source/unit was located in the basement of the facility. The RSO stated they performed radiation surveys in adjoining rooms and the room above where the exposed source is located, and all dose rates were normal (less than 200 microrem/hr). The service provider will be at the licensee's location on February 23, 2023, to inspect the unit. The access door has been locked and 'Caution' tape has been placed on the door jam. No over exposures have occurred due to this event. Additional information will be provided as it is received in accordance with SA-300.</br>Texas Incident Number: I-9991</br>* * * UPDATE ON 02/22/23 AT 2049 EST FROM ART TUCKER TO KERBY SCALES * * *</br>The following update was received from Texas Department of State Health Services (the Agency) via email:</br>On February 22, 2023, the licensee's RSO notified the Agency that they had just talked with the service company that would retrieve the source and discussed the operation. The job is expected to start at 0830 CST on February 23, 2023. The RSO stated the individual will enter the room wearing a Personal Radiation Dosimeter (PRD), an OSL (Optically Stimulated Luminescence) dosimeter, and an Instadose for exposure monitoring. Alarms will be set on the PRD. The RSO stated they will have a pre-job safety briefing before the technician enters the room and will establish turnback values for the job. The technician will enter the room and rotate the source head to point the source away from them. They will then force the source back into the shield. The service company estimates the technician will receive 500 millirem for the job. The RSO stated the room has video surveillance and will also have audio capabilities. The RSO stated the job is anticipated to take less than 15 minutes. The RSO will notify the Agency when the technician enters the room for the first time and leaves the room when the job is completed. The Agency has requested additional information.</br>* * * UPDATE ON 02/23/23 AT 1307 EST FROM ART TUCKER TO IAN HOWARD * * *</br>The following update was received from Texas Department of State Health Services (the Agency) via email:</br>On February 23, 2023, the licensee notified the Agency that the service company was able to return the source to the fully shielded position by manipulating the systems air pressure. No individual received any significant radiation exposure from the operation. Additional information will be provided as it is received in accordance with SA-300.</br>Notified R4DO (Roldan-Otero) and NMSS Events Notification via email.</br>* * * UPDATE ON 02/28/23 AT 2250 EST FROM ART TUCKER TO ERNEST WEST * * *</br>The licensee's radiation safety officer provided the following additional information: `(The teletherapy unit that had a stuck source) is a Theratron 780C, and it was the Numatics Mark 8 solenoid valve that failed.'</br>Additional information will be provided as it is received in accordance with SA-300.</br>Notified R4DO (Vossmar) and NMSS Events Notification via email.r) and NMSS Events Notification via email.
Has query"Has query" is a predefined property that represents meta information (in form of a <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Subobject">subobject</a>) about individual queries and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
00:00:00, 28 February 2023 +
L00466 +
Modification date"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
12:30:17, 1 March 2023 +
21:35:00, 21 February 2023 +
Kerby Scales + and Ernest West +
0.649 d (15.58 hours, 0.0927 weeks, 0.0213 months) +
06:00:00, 21 February 2023 +
URL"URL" is a <a href="/Special:Types/URL" title="Special:Types/URL">type</a> and predefined property provided by <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a> to represent URI/URL values.