Radiation Source

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INES-event
INES 2

Overexposure of a member of the public

An industrial radiograph test was performed in Sakarya province, Turkey on October 17,2016 after which a serious radiological incident occured.
Test was performed in a normal manner but after the test, the radiological protection officer hurried up and skipped the control that the source was secured. The source, Ir-192 with a 15 Ci activity (category 3 source according to INES manual) at the date of the accident, dropped to the worksite as unsealed. The source was found by a 16 years old visitor (E.B) approximately at 03:40 p.m. (local time) next day. E. B. placed the source to his trouser’s back pocket and travelled to home for two and a half hours. At the house, household members and their guests declared that they touched or saw the source until approximately 09:00 a.m. on October 20, 2016.
The source was reported as lost to Turkish Atomic Energy Authority Disaster and Emergency Management Center by its owner on October 20, 2016.

Category: Radiation Source Turkey »

INES-event
INES 2

Overexposure to Radiographer

The licensee radiographer's dosimetry report for July 2016 recorded a dose of 0.055 Sv (5.5 rem), bringing his total dose to 0.064 Sv (6.4 rem), which is above the statutory limit of 0.05 Sv annually (5 rem) for a radiation worker. The Radiation Safety Officer believes the radiographer may not have been properly distancing himself from the source while performing radiography in an enclosed area. NRC EN52199

Category: Radiation Source United States of America »

INES-event
INES 1

Loss of a device containing radioactive sources

On the 25th of August 2016 the lack of two density gauges containing a category 5 radioactive source each (Am-241 activities 240 MBq and 185 MBq) was discovered at a former barite mining facility. The gauges were not in use and were to be disposed of. The gauges were supposedly stolen but the exact date of the theft is not known due to the licensee’s lack of proper documentation. There is no evidence of possible exposure of individuals.

Category: Radiation Source Poland »

INES-event
INES 2

Overexposure to Radiographer

During the performance of industrial radiography, the licensee radiographer taped the radiography camera’s guide tube to a jig in preparation for an exposure shot. During the exposure shot, the guide tube fell and the radiographer re-taped it to the jig without first retracting the source back inside the camera. A re-enactment of the event demonstrated that the radiographer had placed his left hand on the camera's collimator and inserted his middle finger into its port hole.

Category: Radiation Source United States of America »

INES-event
INES 1

A sealed radioactive Cs-137 source contaminated the premises of waste management company

Event Abstract:
A sealed radioactive Cs-137 source contaminated the premises of waste management company and also the neighboring rooms used by Finnish Radiation and Nuclear Safety Authority (STUK). The event was found out on 7 March 2016.

The source, activity presently 360 MBq, had been used in a factory in Finland for level gauging and was delivered to waste management company as radioactive waste. When the gauge was received by the company, one of the staff tried to open the source shield in order to remove the actual cesium source for disposal. He did not have information or other indication that the source might not be intact. During the handling of the source contamination was released into the room where gauge was handled and also to adjacent rooms and air exhaust ventilation ducts.

Category: Radiation Source Finland »

INES-event
INES 3

Radiographer Overexposure

On September 08, 2015, Nuclear Regulatory Authority (ARN) was informed about a radiological incident during industrial radiography of a boiler´s manifold in the Thermoelectric Power Station, located in Río Turbio, Santa Cruz.

Category: Radiation Source Argentina »

INES-event
INES 2

Overexposure to Radiographer

After performing a radiograph, the radiographer believed he had cranked the source back inside the camera. However, when he went to retrieve the film, he noticed that his survey meter was reading off-scale, and then he noticed that his pocket dosimeter also read off-scale. The radiographer’s whole body dosimetry was sent for processing, which resulted in readings of 114.5 mSv (11.45 rem) deep dose equivalent and 114.9 mSv (11.49 rem) lens dose equivalent. The total effective dose equivalent accrued by the radiographer for the year was 125.8 mSv (12.58 rem).

Category: Radiation Source United States of America »

INES-event
INES 3

Overexposure of two industrial radiographers

Two industrial radiographers who were involved in an oil refinery projects, overexposed by Gamma radiation of Ir-92, 35 Ci. On 23/09/2015, one of the radiographers dismantled the guide tube without noticing that the source/holder was detached and stocked in the guide tube due to not having survey meter with him. He put the guide tube in the car between the right front chair and back chair. During the night, one of the radiographers slept in the left front chair for about 6 hours while the other slept in the right front chair for about 4 hours in different times.

Category: Radiation Source Iran »

INES-event
INES 2

Bordeaux University: discovery of radioactive sources and incidental exposure of persons

Two radioactive sources were discovered by the Bordeaux University prevention service in a very cluttered and regularly frequented room during a housekeeping operation carried out at the end of June 2015.

As soon as they were discovered, the sources were transferred for safe storage in a room specially intended for that purpose within the university campus.

Category: Radiation Source France »

INES-event
INES 2

Overexposure to Radiographer

The licensee reported that one of their radiographers received a deep dose equivalent of 55.63 mSv (5.563 rem) during 2009. The licensee stated that the exposure had accumulated over the year and was not the result of a one-time event. Additionally, the licensee stated that the exposure probably occurred while the radiographer was using high activity sources in confined spaces. The licensee believes that the shooting times were so short that the radiographer was not able to maximize distance during operations.

Category: Radiation Source United States of America »