RSS feed source: International Atomic Energy Association--Nuclear & Radiological Events

Radiactive Waste Facility Taken Over

Print View Posted on: 03 March 2025

Event Date: 02 March 2025 Event Type: Radiation Source Event Location: Mexico, Temascalapa, Mexico State, Mexico INES Rating: 2 (Provisional)

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

Click this link to continue reading the article on the source website.

RSS feed source: International Atomic Energy Association--Nuclear & Radiological Events

Accidential Exposure of Industrial Radiography Worker

Print View Posted on: 26 December 2024

Event Date: 12 September 2023 Event Type: Radiation Source Event Location: Korea, Republic of, Yeosu INES Rating: 2 (Final)

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.

INES Rating: 2 – Incident (Final) as per 29 January 2024

Impact on people and the environment Release beyond authorized limits? No Overexposure of a

Click this link to continue reading the article on the source website.

RSS feed source: International Atomic Energy Association--Nuclear & Radiological Events

Exposure of Workers at a Facility using a Radiation Generating Device

Print View Posted on: 26 December 2024

Event Date: 15 July 2019 Event Type: Radiation Source Event Location: Korea, Republic of, Ansan INES Rating: 3 (Final)

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.

INES Rating: 3 – Serious incident (Final) as per 17 March 2020

Click this link to continue reading the article on the source website.