Radiation Source

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INES-event
INES 2

Potential exposure of airplane passengers to doses in excess of statutory limits for the public due to a damaged type A package

On 22 November 2012, a type A package containing Cs-137 (54 GBq) triggered a radiation alarm at the Frankfurt airport, Germany. The package originated in Brisbane, Australia and was shipped on a passenger airplane via Dubai. The package examination found that one of the Cs-137 sources (18.5 GBq) transported in the package was found outside its shielded container but within the overpack and another source was lodged between the lid and body of the shielded container. The maximum dose rate on surface of the overpack was measured to be 33 mSv/hr and 0.94 mSv/hr at distance of 1m.

Category: Radiation Source Australia »

INES-event
INES 2

Radiographer Overexposure

The Oklahoma Department of Environmental Quality was informed of an overexposure of a radiographer assistant employed by Western X-ray Services. The dose involved is 51 mSv (5.1 rem). On seven occasions during 2012, the dosimetry vendor had contacted Western X-Ray Services to inform them of the high dosimetry dose readings for the radiographer assistant. The supervising radiographer whom the radiographer assistant had worked with stated that there were no unusual incidents or equipment problems with their QSA Global model 660 exposure device and the Ir-192 sources.

Category: Radiation Source United States of America »

INES-event
INES 2

Exceeding of the maximum regulatory annual effective dose by a practitioner in interventional radiology

On 6th May 2013 ASN, the French nuclear regulatory body (ASN), was informed by the Head of the hospital “Institut Mutualiste Montsouris” (http://www.imm.fr/) that a radiologist performing radio-guided procedures had received an effective dose exceeding the maximum regulatory dose limit of 20 mSv (milliSievert) in twelve consecutive months.

The event was notified after the hospital's senior management received a report from the occupational physician on 29th April 2013 concerning repeated exceedances of the annual effective dose since July 2012 (effective dose of 22 mSv recei

Category: Radiation Source France »

INES-event
INES 2

Irradiation of a worker while handling an Iridium 192 source

A worker of the Applus RTD-CTS company was handling a gamma ray projector containing a source of iridium 192 of 2 TBq while performing a weld inspection within the Esso refinery at Fos-sur-Mer (Bouches-du-Rhône administrative department, South-East of France). The source could not return to its safe shielded position inside the device. It appeared that the operator moved the device by hanging it by its remote control box and then attempted to perform various actions to release the source before implementing the incident procedure.

Category: Radiation Source France »

INES-event
INES 2

Overexposure of 4 persons exceeding the statutory annual whole body dose limit for workers (20 mSv)

On 24th April 2013 an Am-241 radiation source (reported activity 3 GBq) was transported for disposal from the Institute of Analytical Chemistry und Radiochemistry at the University of Innsbruck to the Austrian Central Waste Management Facility Nuclear Engineering Seibersdorf (NES). On 2nd May 2013 two workers of NES were contaminated and exposed during opening the transport cask. Also the area for handling the radioactive sources was also contaminated. Cause of the contamination spreading is a leakage of the Am-241 source. Urgent counter measures were taken by NES.

Category: Radiation Source Austria »

INES-event
INES 2

Radiographer Overexposure

The Oklahoma Department of Environmental Quality was informed of an overexposure of a radiographer employed by Tulsa Gamma Ray. The total dose for the year to date involved is 67 mSv (6.7 rem). It is unknown at this time whether the exposure was acute or chronic. More details will be provided as they become available. NRC EN48836.

Category: Radiation Source United States of America »

INES-event
INES 2

Overexposure to Radiographer’s Assistant

A radiographer assistant exceeded the 50 mSv (5 rem) exposure limit for 2012. This individual consistently had higher exposures than other employees and had failed to turn in his badge at the end of April 2012, instead continuing to wear it through May. At the end of October, the assistant again failed to turn in his badge and wore it through November, but turned in his December badge. After his badge worn during October and November 2012 was finally turned in and processed, it was identified that his total dose for the year 2012 was 59 mSv (5.9 rem).

Category: Radiation Source United States of America »

INES-event
INES 3

Overexposure of Workers

On October 18, 2012, three workers were overexposed during industrial radiography at Phool Nagar near Lahore. The event took place due to detachment of Ir-192 source (67 Ci) which remained stuck in the Guide Tube. The workers could not notice this and loaded the Gamma Projector and Guide Tube in the vehicle and traveled for almost 30 minutes from work site to office while placing the Guide Tube very close to the leg of one worker (‘worker A’ sitting on rear seat of the vehicle).

Category: Radiation Source Pakistan »

INES-event
INES 1

Radioactive gauge, lost and found

On October 12th 2012 during the removal of a detector from an industrial densitometer, technicians of a greek aluminium company in Voiotia realized that the lock mechanism of a Cs-137 source (5 mCi - 1993), as well as the source itself were missing. Two engineers, trained in radiation protection, blocked the area on a 10 m radius and started the search using a portable detector. The source was found near an open surface drainage stream covered in a sediment crust at a distance of a few meters from the housing.

Category: Radiation Source Greece »

INES-event
INES 2

Overexposure of a radiographer

A radiographer went in a bunker where industrial radiography operations were made. The ionising source was a X-ray machine (225kV - 4mA). The radiographer thought that the irradiation was finished but this was not the case and he was exposed.

According to the biological dosimetry, the radiographer received a whole body dose below 200mSv.

At the moment, the licencee is making a reconstitution of the incident to better determine the dose

Category: Radiation Source Belgium »