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International Nuclear and Radiological - Latest Events


Recently posted reports on News.iaea.org
Recently posted reports on News.iaea.org

August 5th, 2025 10:23:31 EDT -0400 External contamination of a worker beyond the annual statutory limit to the skin
On 12 June 2025, the operator of the Cattenom nuclear power plant reported a significant radiation protection event concerning the exceeding of an annual individual dose limit by an EDF contractor. On 9 June 2025, this contractor was installing lead matting in reactor building 3, which was shut down for partial inspection. During the check carried out at the exit of the controlled area, skin contamination was detected on the contractor's cheek. The worker was immediately taken into care and the radioactive particle causing the contamination was removed. The occupational physician assessed the dose received, taking into account the worker's activities within the reactor building. This assessment showed that the dose received by the worker's cheek exceeded the regulatory limit for the equivalent skin dose (500 mSv). As soon as the contamination was discovered, the operator took action to identify its source. However, radiological checks carried out in the premises where the agent was present did not reveal any particular anomalies. The ASNR carried out an on-site inspection on 13 June 2025, during which contamination checks were carried out on the premises, with negative results, and verification that EDF had taken all necessary measures to manage the event adequately and to analyse its causes.
August 5th, 2025 10:15:29 EDT -0400 External contamination of a worker beyond the annual statutory limit to the skin
On 25 July 2025, the operator of the Gravelines nuclear power plant reported a significant radiation protection event concerning the exceeding of an annual individual dose limit by an EDF contractor. Reactor 1 at the Gravelines nuclear power plant was in shut down for maintenance and refuelling. During the night of 23 to 24 July, as part of radiographic testing of a pipe located in the reactor building, a worker was contaminated on the head. This contamination was detected at the exit of the reactor building during a radiological check. The worker was taken care of by the changing room attendant in order to remove the radioactive particles, and then by the site's medical service. The occupational physician carried out a conservative assessment of the dose received, taking into account the worker's activities within the reactor building. This assessment showed that the dose received by the worker's neck exceeded the regulatory limit for equivalent skin dose (500 mSv). As soon as the contamination was discovered, the operator took action to identify its source. However, radiological checks carried out in the premises where the agent was present did not reveal any particular anomalies. The ASNR carried out an on-site inspection on 28 July 2025 to verify that the operator had taken all necessary measures to manage the event adequately, analyse its causes and resume operations safely. During the inspection, contamination checks were carried out on the pipework involved in the activity, with negative results.
August 1st, 2025 04:45:00 EDT -0400 Localised irradiation of a worker's arm by the beam of a particle accelerator
On 24 July 2025, the National Centre for Research and Restoration in French Museums (C2RMF) reported to the ASNR a significant radiation protection event related to the localised irradiation of a worker by the beam of the AGLAE particle accelerator, used for analysing works of art and ancient objects. The radiation caused an erythema at the beam impact point on the worker's arm, i.e. a first-degree radiation burn characterised by reddening of the skin, which is typical of a deterministic effect of ionising radiation. The worker was taken into care by his general health doctor and the occupational health doctor, with support from a specialist doctor from the reference regional health centre for nuclear and radiological risk and ASNR experts for dose reconstruction. The ASNR conducted an on-site inspection on 30 July 2025. This inspection examined the initial causes identified by the C2RMF, which include a malfunction of the safety control system required by the standards applicable to particle accelerators in industrial and research applications (NF M 62-105). Thus, the particle beam was not interrupted by the safety control system when the worker entered the experimental room. Furthermore, the inspection revealed that the radiation protection culture could be improved, particularly with regard to the prevention of risks associated with the particle accelerator. The inspection also made it possible to clarify the conditions under which the worker has been exposed, which will enable the ASNR to provide the associated physicians with a reconstruction of the received dose. Following the inspection on 30 July 2025 and the report of a significant radiation protection event, the C2RMF will have to submit to the ASNR a detailed analysis of the event, the root causes that led to the incident and the corrective actions taken and planned. It will also have to provide answers to the various requests made in the follow-up letter of the inspection. This follow-up letter is publicly available on ASNR website following a link to be found in the press release, but only in French. The ASNR will ensure that the facility meets back the safety standards and that the experience feedback is properly taken into account by the establishment. It will ensure that this feedback is shared both nationally and internationally, given the level of rating of this event on the INES scale.
July 17th, 2025 14:51:24 EDT -0400 Workers Exceeded Annual Dose Limit
On April 8, 2025, two workers were performing waste handling activities in a hot cell basement of a cyclotron facility that produces strontium-82 from metallic rubidium targets. One worker removed a high-level liquid waste container from a shielded barrel and placed the unshielded container on the ground adjacent to the work area, where activities continued for approximately 15 minutes. Both workers’ electronic dosimeters alarmed for high dose soon after the container was removed from shielding; however, neither worker noticed these alarms because of the personal protective equipment they had donned, including respirators. Radiation surveys were performed upon entry to the area and prior to removing the container from shielding, but not again until after the workers left the area and noticed the excessive doses recorded on their electronic dosimeters. Radiation dose rates on contact with the waste container exceeded 9.99 Sv/hr (999 R/hr), which was the upper limit of available instrumentation. The licensee later determined that on the day of the event, the waste container contained over 7.77 TBq (210 Ci) of rubidium radionuclides. A dose reconstruction concluded that as a result of this event, Worker 1 received a total effective dose equivalent (TEDE) of 0.124 Sv (12.4 rem) and a shallow dose equivalent (SDE) of 2.4 Sv (240 rem) to the skin of the lower extremities, and that Worker 2 received a TEDE of 0.096 Sv (9.6 rem). The TEDE of both employees exceeded the U.S. regulatory limit for annual whole body dose of 0.05 Sv (5 rem). The SDE of Employee 1 exceeded the U.S. regulatory limit for annual dose to the skin of the extremities of 0.5 Sv (50 rem). EN57657
June 21st, 2025 22:42:12 EDT -0400 Attacks on Natanz, Esfahan and Fordow Nuclear Facilities by the criminal United States of America
Despite the prohibition of attacks on nuclear facilities and the fact that such actions contravene all international norms and principles of international law, the Natanz, Esfahan and Fordow nuclear facilities– which have been under continuous IAEA inspection and verification measures – were attacked by the criminal United States of America on June 22. Because of the sensitivity of information that may be used by the enemies, no information can be provided about the on-site condition. No increase in off-site radiation levels has been reported as of this time. Further investigation is still ongoing.
June 14th, 2025 01:55:54 EDT -0400 Several attacks by Zionist regime
Despite the prohibition of attacks on nuclear facilities and the fact that such actions contravene all international norms and principles of international law, the Esfahan nuclear facilities – which have been under continuous IAEA inspection and verification measures – was attacked several times by the Zionist regime on June 13. Because of the sensitivity of information that may be used by the enemy, no information can be provided about the on-site condition. No increase in off-site radiation levels has been reported as of this time. Further investigation is still ongoing.
June 13th, 2025 00:29:07 EDT -0400 several missile attacks by Zionist regime of israel
Despite the prohibition of attacks on nuclear facilities and the fact that such actions contravene all international norms and principles of international law, the Natanz nuclear facilities – which have been under continuous IAEA inspection and verification measures – was subjected to aerial and missile attacks by the Zionist regime from approximately 3:00 AM to 8:00 AM Iran Standard Time (IRST) on 13 June 2025. No increase in off-site radiation levels has been reported as of this time. Further investigation are still ongoing continuously.
March 19th, 2025 16:42:19 EDT -0400 Radiactive Waste Facility Taken Over
On Sunday March the 2nd, 2025, at approximately 6:30 AM (UTC-06:00), personnel from the municipality of Temascalapa forcibly took over the Low and Medium Level Radioactive Waste Storage Center (CADER), property of the National Institute of Nuclear Research (ININ), evicting the personnel who were at the facility and subsequently placing seals of closure at the entrances. The video surveillance and environmental radiation monitoring systems that CADER has were disabled and there was no way to know the status inside the Center. Negotiations took place out between personnel from the government of the State of Mexico and the Municipality of Temascalapa, without reaching agreements so far. In addition to the radioactive material and depleted uranium that are kept in the facility, work tools from a foreign company were also retained inside it. Federal Authorities were working to regain control of the facility. The source term of the facility is estimated at approximately 1,041.55 TBq of Co-60 and its surface area is 16.2 HA On Thusrday March the 13th, 2025, people from the Comisión Nacional de Seguridad Nuclear y Salvaguardias (CNSNS) conducted two reconnaissance procedures at the CADER, one on safety and the other one on security. No abnormal conditions were detected during the safety inspection. Regarding the security inspection, the following were observed: • It was confirmed that no intrusion occurred in any of the three CADER radioactive waste warehouses. • Intentional damage was found to equipment related to CCTV, alarm systems, voice and data transmission, and other systems. According to the personnel from the ININ who attended the reconnaissance procedure, the extent of the damage was such that it was not possible to restore these systems during the procedure. Additionally, two CCTV cameras were removed and a third was disabled (covered with a plastic bag), all of which located in the security booth. • It was confirmed that personnel not associated with the facility broke into the CADER administrative offices. According to ININ staff, a solid-state storage drive containing sensitive CADER information was initially detected missing. The sabotage of the CADER's physical protection system left the facility in imminent risk (according to article 181 of Mexico's General Regulations on Radiological Safety), which is why the preventive and security measure consisting of securing the radioactive material stored in the CADER was executed, placing security seals at the entrances to the three warehouses for this purpose. Finally, on Friday March the 14th, 2025, after negotiations among the Federal, State and Municipal authorities, control of the CADER was returned to ININ (who is the owner and administrator of the facility), so the CADER is back under his owner control.
March 19th, 2025 16:10:00 EDT -0400 Lost Radiography Device
On March 6, 2025, a radiography crew working approximately 16 km (10 mi) east of Mentone, Texas, reported losing a SPEC 150 exposure device containing a 3.53 TBq (95.4 Ci) iridium-192 source. Update: On March 13, 2025, a member of the public contacted the licensee stating they had found the exposure device. The device was recovered by and is in the possession of the licensee. The device had remained in a locked shed since being found. The exposure device was found to be intact and no attempt was made to operate or tamper with the device. Exposure levels were normal and no individual would have received any significant exposure due to this event. NRC EN57596
March 13th, 2025 09:44:25 EDT -0400 Lost Radiography Device
On March 6, 2025, a radiography crew working approximately 16 km (10 mi) east of Mentone, Texas, reported losing a SPEC 150 exposure device containing a 3.53 TBq (95.4 Ci) iridium-192 source. A trainee set the exposure device on the back of the truck but failed to secure the device in the truck. The source was in the fully shielded position. Shortly after leaving the work site, the radiographers realized the exposure device was no longer in the back of the truck. The radiographers retraced the path they had traveled but did not find the device. Two other trucks passing that way were stopped but the drivers had not seen the device. The licensee has offered a cash award for the return of the device and Texas state authorities issued a press release to alert the public (https://www.dshs.texas.gov/news-alerts/dshs-notifies-public-missing-radiographic-camera-loving-county). U.S. Department of Energy Radiological Assistance Program teams have assisted the licensee and Texas state authorities in searching for the device. State authorities have also contacted Federal and local law enforcement for assistance. NRC EN57596
March 7th, 2025 08:52:17 EST -0500 Stolen Radiography Camera
On 27 February 2025, a radiography camera containing 2.738 TBq (74 Ci) of Ir-192 was reported stolen from a licensee’s truck. On 26 February 2025, the radiographer stayed the night at a hotel in Kernersville, NC and discovered the next morning that the camera was missing. The radiographer had not followed approved procedures for securing the camera. They immediately notified North Carolina state authorities and local law enforcement. A search of the area was performed but the device could not be located. Hotel surveillance camera footage was reviewed but did not provide any useful information. North Carolina Department of Health and Human Services issued a press release (https://www.ncdhhs.gov/news/press-releases/2025/02/28/ncdhhs-issues-alert-missing-radioactive-material-triad-area) to warn the public of the potential danger of the device and to contact authorities if it is found or anyone has knowledge of its location. North Carolina state regulators and law enforcement investigations are ongoing. Based on activity, the source involved was Category 2. NRC EN57574
March 3rd, 2025 17:54:43 EST -0500 Radiactive Waste Facility Taken Over
On March the 2nd,2025 at approximately 6:30 AM (UTC-6), personnel from the municipality of Temascalapa forcibly took over the Low and Medium Level Radioactive Waste Storage Center (CADER), evicting the personnel from the National Institute of Nuclear Research (ININ), who were working at the facility and subsequently placing seals of closure at the entrances. The video surveillance and environmental radiation monitoring systems that CADER has were disabled and there is no way to know the current status inside the Center. Negotiations are being carried out between personnel from the government of the State of Mexico and the Municipality of Temascalapa, without reaching agreements so far. In addition to the radioactive material and depleted uranium that are being kept in the facility, work tools from a foreign company were also retained inside it. Currently, Federal Authorities are working to regain control of the facility. The source term of the facility is estimated at approximately 1,041.55 TBq of Co-60 and its surface area is 16.2 HA
December 26th, 2024 05:58:24 EST -0500 Accidential Exposure of Industrial Radiography Worker
On September 12, 2023, during industrial radiography, the control cable of the equipment ruptured, causing the radiation source(Ir-192, 1.75 TBq) to detach inside the guide tube. The worker was unable to notice the detachment of the radiation source in time due to the lack of proper radiation safety equipment and continued working. After completing the work, it was confirmed that all the taken film were overexposed, leading to the realization that the radiation source had detached. Although no clinically significant effects, such as blood abnormalities or skin tissue reactions, were observed, the radiation dose assessment indicated an effective dose of 116 mSv and a hand (skin) equivalent dose of 1967 mSv.
December 26th, 2024 05:57:53 EST -0500 Exposure of Workers at a Facility using a Radiation Generating Device
In July 2017, at a semiconductor manufacturing company, seven workers were exposed to radiation due to the abnormal use of an X-ray generator(100 kVp, 0.1 mA) for product defect inspection. The X-ray generator was a cabinet-type device with a shielding door interlock, but the workers manually disabled the interlock, allowing the shielding door to be opened while the X-rays continued to emit. While the X-rays were being emitted, the workers inserted their hands and upper bodies into the device to perform the work. Among the seven exposed workers, two workers developed radiation effects on their hands, including erythema, pain, and blisters. Radiation dose assessments conducted that while the effective dose for the seven workers did not exceed the annual dose limit, the skin equivalent dose exceeded the annual dose limit for all of them.
December 26th, 2024 05:57:27 EST -0500 Accidential Exposure of Industrial Radiography Worker
On August 24, 2018, during industrial radiography using a sealed radiation source (Ir-192, 1.22 TBq), the radiation source became stuck inside the guide tube, making it impossible to retrieve. During the initial response, the remote control cable was incorrectly assembled in the opposite direction, but the worker did not notice this mistake. The worker believed that the source had been safely retrieved into a shielding container, but instead, the source was pushed outside the container and remained inside the guide tube. When the worker attempted to detach the guide tube from the shielding container, the source became exposed. The worker then physically handled the source capsule with bare hands, resulting in radiation exposure. At the time, the worker did not have a radiation detector, so the exact position of the source was unknown. The source was later safely retrieved by another worker. The worker’s hand equivalent dose was assessed as 960 mSv, which exceeds the dose limit.