Radiation Source

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Stolen radioactive sources

On the 6th of March 2015 total of 22 containers with Co-60 category 5 (activity between 40 MBq and 200 MBq on 2015-03-06) radioactive sources were reported stolen from a storehouse in Poznan. On the 10th of April the licensee informed that 7 of the containers previously reported stolen have remained intact inside the storehouse. Aggregated activity of the stolen sources equals about 1,7 GBq.

Category: Radiation Source Poland »

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Overexposure of radiation workers

After an engineer and two operators had completed the logging operation and prepared the rig floor for lifting the logging source, logging tools were brought back to surface. The two radioactive logging sources, Cs-137 and Am241-Be, were unloaded from the logging tools by the engineer.

Category: Radiation Source Australia »

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Overexposure to Radiographer

The Lead Radiographer and three assistant radiographers were completing two exposures lasting 35 seconds each. The set-up time for the exposures was approximately 15 to 18 minutes. After completing two exposures, one individual noticed that his pocket dosimeter read off scale, a second individual read their dosimetry at 0.5 mSv (50 mrem), the third individual read their pocket dosimeter as off scale, and the fourth individual was not wearing a dosimeter. Two individuals were wearing functioning rate meters and two were not.

Category: Radiation Source United States of America »

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Overexposure to Radiographer

While on location at a temporary jobsite, the licensee radiographer attempted to disconnect the guide tube from the radiography camera, without ensuring the source was in the shielded position. The licensee has confirmed a whole body dose of 64 mSv (6.4 rem) which exceeds the statutory dose limit of 50 mSv (5 rem). The licensee also confirmed a hand dose of 2,060 mSv (206 rem) which exceeds the statutory limit of 500 mSv (50 rem) for extremities. NRC EN50745.

Category: Radiation Source United States of America »

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Radiation Leakage from Brachytherapy Machine

The Brachytherapy machine became out of order in September 2009. The Bio-medical Engineering Department of the hospital explored to obtain maintenance support from the manufacturer for the repair of the machine but the same could not be arranged and machine remained out of use and was kept safe and secure in its bunker. In February 2014, during a routine check of the machine condition, the machine showed radiation leakage in the bunker room. It was suspected that the source pellet, while returning from the intermediate safe to the main safe mode, got stuck in the passage.

Category: Radiation Source Pakistan »

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THEFT OF RADIOACTIVE SOURCES

On the night of October 8, armed thieves entered the storage facility at the company and equipment and various electronic ítems were stolen, as well as two sources of Am-Be 185 GBq each (Category 3), within a yellow container.
The company notified the National Police and the IPEN (regulatory body), who sent a team for performing a quick search of the sources in the area.
Local advisory warnings to the public were issued.

Category: Radiation Source Peru »

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Theft of portable radioactive gauge

On June 17th, 2012 a portable radioactive gauge was stolen from the store room of BISA company, in a mining plant. The radioactive gauge was used to density and moisture measurements and it was stolen jointly with other belongs from company by breaching the store room door.
The radioactive gauge is a TROXLER manufactured and model 3440P and serial 65350. It contains two Category 4 radioactive sources: Cesium-137 (296 MBq) and Am-241/Be (1,48 GBq).

Category: Radiation Source Peru »

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Overexposure to workers to radiografic source

Three workers were exposed to doses while working in a bunker. One worker was shielded, two were not.
The source is Se-75 1,5 TBq
Two workers were exposed to approx. 30 mSv, well above the annual limit of 20 mSv
The shielded workers dose was approx. 0.6 mSv.

None of the workers had dosimeters.

Category: Radiation Source Norway »

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Overexposure of radiographyworker over the annual limit

Worker, wearing warning device (not dosimeter) was in a bunker with an unsecured source (Ir-192 - 555 GBq).

Dose received approx. 32 mSv.

Category: Radiation Source Norway »

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Overexposure to Radiographer

Two radiography trainees were performing industrial radiography inside a tank. The first trainee handled the guide tube of a radiography camera while the Ir-192 source was in the guide tube. The Ir-192 source contained 2553 GBq (69 curies).The first trainee was not wearing his personnel monitoring devices because he had left them in the truck. He also was not using a survey meter.

Category: Radiation Source United States of America »