Events


Events 1 - 22 of 22 Items per page:
United Kingdom, 22 Jul 2022, INES: 2

Automatic trip of both reactors following loss of off-site electric supplies

On the 22 July 2021 at 14:57, following failure of a National Grid transformer located offsite, Heysham 1 experienced a complete loss of 400kV power supplies. Both reactors were operating at nominal full power prior to the incident, and both tripped automatically. The back-up power supply...
Reported by Office for Nuclear Regulation (ONR) of United Kingdom on 01 Dec 2021. Last update on 01 Dec 2021


Spain, 20 Jul 2021, INES: 2

Overexposure of two workers

The dosimetry service of an industrial radiography facility identified that the TLD of two workers at this facility had exceeded the annual dose limit. The irradiation source was an Ir-192 gammagraph, in which the source got stuck during irradiation work. The first worker had received a dose of...
Reported by Consejo de Seguridad Nuclear (CSN) of Spain on 26 Nov 2021. Last update on 26 Nov 2021


United States of America, 06 Oct 2021, INES: 2

Worker Exceeded Annual Whole Body Dose Limit

A radiographer received approximately 0.093 Sv (9.3 rem) when a radiography source was unable to be retracted into an industrial radiography device. The radiographer handled the guide tube and collimator with the 3.367 TBq (91 Ci) Ir-192 source in an unshielded position. Dose reconstruction and...
Reported by Nuclear Regulatory Commission (NRC) of United States of America on 21 Oct 2021. Last update on 21 Oct 2021


United Kingdom, 11 Dec 2020, INES: 2

Hands skin exposure

The incident occurred at a radio-pharmacy facility used to produce Technetium-99m doses for medical purposes. One operator received a needle stick injury during the drawing of radiopharmaceutical doses from Technetium-99m elute stock. Dose estimates have been made based upon assumptions that were...
Reported by Office for Nuclear Regulation (ONR) of United Kingdom on 19 Oct 2021. Last update on 19 Oct 2021


Hungary, 23 May 2021, INES: 1

Failure of a defectoscope during industrial radiography test

The VOLVID PLC conducted gamma radiography to inspect welded joints at an industrial site of Borsodchem PLC at Kacincbarcika. The inspection was executed by a GammaMat SE device, containing a Category 3 Se-75 sealed radioactive source with 1,71 TBq activity. Upon competition of the inspection, the...
Reported by Hungarian Atomic Energy Authority of Hungary on 14 Sep 2021. Last update on 14 Sep 2021


France, 24 Aug 2021, INES: 2

External contamination of a worker leading to exceeding of the regulatory annual limit for the equivalent dose to the skin

On 27 August 2021, ASN (Autorité de Sûreté Nucléaire), the French nuclear regulator, was notified by the Cruas nuclear power plant licensee of a significant radiation protection event concerning the exceeding of an annual individual dose limit by an EDF employee. On 24 August 2021, two operators...
Reported by Autorité de Sûreté Nucléaire (ASN) of France on 07 Sep 2021. Last update on 07 Sep 2021


France, 09 Oct 2020, INES: 2

Discovery of legacy radioactive sources and residual contamination

The discovery by the University Hospitals of Strasbourg (HUS) of legacy radioactive sources and residual radioactive contamination in a building on the site of the Civil Hospital of Strasbourg was reported on the ASN website on 12 October 2020. Since that date, substantial investigations and...
Reported by Autorité de Sûreté Nucléaire (ASN) of France on 07 Sep 2021. Last update on 07 Sep 2021


Finland, 28 Nov 2020, INES: 1

Am-241 meltings

Several orphan Am-241 sources, which were inadvertently included in scrap metal, were melted in a Finnish steel factory. One event happened in 2019 and four events in 2020 as follows - 2019, January 18th, estimated activity 1 100 MBq - 2020, February 28th, estimated activity 1 400 MBq - 2020,...
Reported by Radiation and Nuclear Safety Authority (STUK) of Finland on 08 Apr 2021. Last update on 08 Apr 2021


United States of America, 11 Mar 2021, INES: 2

Overexposure to Worker

A radiographer was exposed to Ir-192 sources while working with industrial radiography cameras at a permanent fixed facility. The badge showed the individual involved received a dose of 0.07 Sv (7.2 rem). The radiographer potentially used different radiography cameras with different sources...
Reported by Nuclear Regulatory Commission (NRC) of United States of America on 17 Mar 2021. Last update on 17 Mar 2021


Iran, Islamic Republic of, 24 Nov 2020, INES: 1

Discovered Ra-226 source in Copper scrap metals

On 24th of November 2020, National Radiation Protection Department (NRPD) received an alarm from a radiation portal monitoring system installed in northwest border for monitoring trucks carrying imported goods. Reported count rate from the truck loaded with copper scrap metals was 10 times of...
Reported by Iran Nuclear Regulatory Authority (INRA) of Iran, Islamic Republic of on 09 Mar 2021. Last update on 09 Mar 2021


Mexico, 19 Sep 2020, INES: 1

Stolen Catgeory-2 source at Ciudad Obregon, Sonora, México.

On September 19, 2020, was stolen from the back of a vehicle parked on public roads the theft an industrial radiography camera (model SPEC 150) owned by the company Radiografía y Ultrasonido Industrial de Veracruz S.A. of C.V. The equipment contains a category 2 radioactive source of Iridium-192...
Reported by Comision Nacional de Seguridad Nuclear y Salvaguardias of Mexico on 08 Mar 2021. Last update on 08 Mar 2021


Pakistan, 09 Jan 2021, INES: 0

Grid Fluctuations at Chashma Nuclear Power Generating Station Affecting C-1, C-2, C-3 and C-4

On January 09, 2021, C-1, C-2, C-3 and C-4 situated at Chashma Nuclear Power Generating Station faced severe grid fluctuations during operation at around 2341 hrs due to country wide power breakdown. C-1, C-2 and C-4 tripped on 'Reactor Coolant Pump (RCP) Bus Under Frequency' while C-3 tripped on...
Reported by Pakistan Nuclear Regulatory Authority (PNRA) of Pakistan on 02 Mar 2021. Last update on 02 Mar 2021


Germany, 02 Jul 2020, INES: 2

Radiation exposure of a worker beyond the statuary annual dose limit

An employee of a company producing machines with integrated X-ray equipment for the determination of the basis weight was unintendedly exposed to radiation during necessary testing work. For the testing, the company concerned uses a self-made radiation protection cabinet, which is equipped with an...
Reported by Gesellschaft für Anlagen und Reaktorsicherheit of Germany on 01 Mar 2021. Last update on 01 Mar 2021


Hungary, 11 Feb 2021, INES: 1

Violation of OL&C in the Interim Spent Fuel Storage Facility at Paks

On the 11th of February 2021, the on duty operator realized that according to the Nitrogen Monitoring system, the pressure of the monitoring space no. 18/7 has decreased to 800 mbar (however it still has not reached the value described in OL&C). After consulting leaders it has been decided to...
Reported by Hungarian Atomic Energy Authority of Hungary on 17 Feb 2021. Last update on 17 Feb 2021


Mexico, 08 Feb 2021, INES: 1

Stolen Radioactive Source in Mexico on February 8 at some point of the road between Apaseo el Alto and Salamanca, Guanajuato.

On February 8, 2021, the CNSNS received a notification about the theft of a radiography camera (model DELTA 880). The camera was stolen when the radiographer was forced to pull over by criminals. The DELTA 880 camera serial number is D2766 and contains a category 2 radioactive source of...
Reported by Comision Nacional de Seguridad Nuclear y Salvaguardias of Mexico on 09 Feb 2021. Last update on 16 Feb 2021


Germany, 31 Jul 2020, INES: 2

Organ equivalent dose exceeding statuary annual limits

In July 2020 an incident happened at a company in Bavaria, Germany. According to the company's radiation protection supervisor, the X-ray sources of the thickness measuring system to be checked by a worker of a measurement technology company can be con-sidered as the cause of the exposure. It seems...
Reported by Gesellschaft für Anlagen und Reaktorsicherheit of Germany on 09 Feb 2021. Last update on 09 Feb 2021


Belgium, 27 Jan 2021, INES: 2

Research reactor power detectors outside OL&C

During production of medical isotopes, the reactor power measurement chains are displaced to ease this process. Due to this displacement of the power measurements detectors, the measurement range was below the limit of 90 % (which is the limit as described in the Technical Specifications of the...
Reported by Federal Agency for Nuclear Control (FANC) of Belgium on 02 Feb 2021. Last update on 02 Feb 2021


Germany, 08 Dec 2020, INES: 2

Radiation exposure of a hospital employee beyond the statuary annual dose limit

As part of the 177Lu production in an industrial application center (production of radio-pharmaceuticals in radionuclide laboratories) when working in a glove box, a used can-nula was accidentally placed on the floor of the glove box when attempting to throw it into the designated collecting...
Reported by Gesellschaft für Anlagen und Reaktorsicherheit of Germany on 28 Jan 2021. Last update on 28 Jan 2021


Germany, 31 Jan 2020, INES: 2

Radiation exposure of a hospital employee beyond the statuary annual dose limit

The evaluation of the OSL (Optically Stimulated Luminescence) whole-body dosimeter of a hospital employee showed a reading of 24.2 mSv. This exceeds the German statuary annual dose limit for the whole-body dose of exposed radiation personnel of 20 mSv. The person concerned showed no deterministic...
Reported by Gesellschaft für Anlagen und Reaktorsicherheit of Germany on 21 Jan 2021. Last update on 21 Jan 2021


United Kingdom, 15 Nov 2019, INES: 2

Radioisotope Manufacture Facility – Operator’s hands contaminated

The incident occurred at a cyclotron facility used to produce Flourine-18 for medical purposes. One operator was contaminated during production. Issues with the Cyclotron prompted an employee to investigate a fault resulting in contamination to the extremities. The presence of Flourine-18 on the...
Reported by Office for Nuclear Regulation (ONR) of United Kingdom on 08 Jan 2021. Last update on 08 Jan 2021


United States of America, 03 Aug 2020, INES: 2

Overexposure to Worker

A radiographer and two assistants were working at an asphalt plant when a magnetic stand fell from the side of a tank and crushed a section of the guide tube of the radiography camera in use. Several attempts by the radiography crew to retract the source into the radiography camera using the crank...
Reported by Nuclear Regulatory Commission (NRC) of United States of America on 21 Dec 2020. Last update on 08 Jan 2021


Finland, 10 Dec 2020, INES: 0

Nuclear Installation Event at OLKILUOTO-2

The INES classification is the same INES 0. This is just update of the event description. Situation at the Olkiluoto unit 2 was initiated 10-12-2020 10:22 UTC when hotter than normal water entered primary circuit water treatment system during maintenance work. The hot water caused breakdown of...
Reported by Radiation and Nuclear Safety Authority (STUK) of Finland on 10 Dec 2020. Last update on 11 Dec 2020


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