Events


Events 1 - 11 of 11 Items per page:
Mexico, 04 Jan 2024, INES: 0

Declaration of Unusual Event (NUP-4.1)

On January 4, 2024, the Unit 1 was operating at 100% power. At 09:00 (local time) the steam tunnel cooling unit “1-RRA-FC-009A” was started due to equipment rotation resulting in the loss of energy in the Motor Control Center (MCC) “1-R31-MCC-1BA-AA” with the failure of the electrical protection of...
Reported by Comision Nacional de Seguridad Nuclear y Salvaguardias of Mexico on 12 Jan 2024. Last update on 12 Jan 2024


Mexico, 18 Oct 2023, INES: 1

Stolen cat-3 source in Mexico

A radiography camera (Industrial Nuclear Co.,model IR 100) along with a pickup vehicle was stolen by organized crime in Corregidora Ortiz 1ª Sección S/N, primera-5A, Ciudad del Carmen, Tabasco. México. The IR 100 camera serial number is 7510 and contains a CATEGORY 3 radioactive source of...
Reported by Comision Nacional de Seguridad Nuclear y Salvaguardias of Mexico on 18 Oct 2023. Last update on 25 Oct 2023


United States of America, 26 Sep 2023, INES: 2

Worker Exceeded Annual Whole Body Dose Limit

A radiography trainee received a dose of 0.075 Sv (7.50 rem) to the whole body and 0.258 Sv (25.8 rem) to the extremities due to a disconnected 2.33 TBq (63 Ci) Ir-192 source. This dose was determined through reconstruction of the event and dose calculations. The trainee did not wear his dosimetry...
Reported by Nuclear Regulatory Commission (NRC) of United States of America on 07 Dec 2023. Last update on 07 Dec 2023


Germany, 24 Sep 2023, INES: 2

Worker Exceeded Statuary Annual Whole Body Dose Limits

On 24.09.2023, an employee of a company carried out a weld inspection in a radiation protection bunker using an X-ray device. After the measurement, the employee – who is also the radiation protection officer - went into the bunker to carry out further work. After completing the work inside the...
Reported by Gesellschaft für Anlagen und Reaktorsicherheit (GRS) mbH of Germany on 08 Nov 2023. Last update on 08 Nov 2023


Poland, 24 Mar 2023, INES: 1

Accidental exposure of workers

On March 24th 2023 during the unloading of a transport package with a radioactive source of I-131 (4.07 TBq), contamination was detected on the inside of the package. After taking a swab, contamination was determined at the level of 200 Bq/cm^2. Four workers were contaminated (hands, personal...
Reported by Radiation Emergency Centre, National Atomic Energy Agency of Poland on 09 Aug 2023. Last update on 09 Aug 2023


Mexico, 22 Mar 2023, INES: 1

Missing Dangerous Source at Salamanca, Guanajuato, Mexico.

On March 22, 2023 at approximately 11:00 a.m. (UTC-6), the theft of four industrial radiography devices with the following characteristics was reported to the CNSNS offices: 1. Brand: AEA Technology, model: DELTA 880, Serial No. D2810, which houses a radioactive source of Ir-192 with serial...
Reported by Comision Nacional de Seguridad Nuclear y Salvaguardias of Mexico on 30 Mar 2023. Last update on 30 Mar 2023


United States of America, 09 Mar 2023, INES: 2

Stolen Category 2 Source

On March 9, 2023, a radiography camera containing a 4.48 TBq (121 Ci) Ir-192 source was stolen from a licensee’s truck. The radiography crew left the job site to get food at a restaurant. The radiographers failed to set the alarm on the dark room of the truck and left the key for the transport box...
Reported by Nuclear Regulatory Commission (NRC) of United States of America on 15 Mar 2023. Last update on 15 Mar 2023


France, 06 Mar 2023, INES: 2

Stress corrosion: presence of a deep crack on the safety injection system of reactor 1 of the Penly NPP

On 6 March 2023, EDF sent ASN an update of its significant safety event notification concerning the presence of stress corrosion cracks on several of its reactors. This update concerns reactor 3 of the Cattenom NPP and the reactors of the Civaux, Chooz B and Penly NPPs. This update includes in...
Reported by Autorité de Sûreté Nucléaire (ASN) of France on 30 May 2023. Last update on 30 May 2023


France, 02 Feb 2023, INES: 2

External contamination of a worker leading to exceeding of the annual statutory dose limit

On 3 February 2023, ASN was notified by the Cattenom nuclear power plant licensee of a significant radiation protection event concerning the exceeding of an annual individual dose limit by an employee of an EDF contractor. On 2 February 2023, this worker was reinstalling thermal insulation on...
Reported by Autorité de Sûreté Nucléaire (ASN) of France on 03 Apr 2023. Last update on 03 Apr 2023


France, 21 Jul 2022, INES: 2

Contamination of an employee and the break room in a nuclear medicine department

On 26 July 2022, the SCINTIGARD radiology centre in Nîmes notified ASN of an incident concerning the contamination of a radiographer during the preparation of a scintigraphy examination, and dissemination of the contamination in the staff break room of the centre. On 21 July 2022, the...
Reported by Autorité de Sûreté Nucléaire (ASN) of France on 09 Aug 2023. Last update on 09 Aug 2023


United Kingdom, 31 Dec 2019, INES: 2

Radon Exposure at Boarding School

The incident occurred at a private boarding school where pupils, employees and their children had been exposed to high levels of radon gas in the atmosphere. The two employees and their two children were exposed to the high radon gas levels as a result of working and living at the school. The...
Reported by Office for Nuclear Regulation (ONR) of United Kingdom on 26 Jan 2024. Last update on 26 Jan 2024


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