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A radioactive source is a known quantity of a radionuclide which emits ionizing radiation, typically one or more of the radiation types gamma rays, alpha particles, beta particles, and neutron radiation. Sources can be used for irradiation, where the radiation performs a significant ionising function on a target material, or as a radiation ...
Naturally occurring radioactive materials (NORM) and technologically enhanced naturally occurring radioactive materials (TENORM) consist of materials, usually industrial wastes or by-products enriched with radioactive elements found in the environment, such as uranium, thorium and potassium and any of their decay products, such as radium and radon. [1]
The radioactivity from these sources exceeded legal limits. [5] [6] Since then, contaminated water has been pumped into storage units and gradually treated using the Advanced Liquid Processing System (ALPS) to eliminate most radionuclides, [3] [7] except notably tritium with a half-life of 12.32 years.
The water has a radioactive material known as phosphogypsum, a byproduct from using phosphate to create fertilizer. Phosphogypsum is placed into stacks and maintained to limit the amount ...
Tokyo Electric Power Company (Tepco) started releasing on Thursday more treated radioactive water from Japan's wrecked Fukushima Daiichi nuclear power plant, as part of a plan that has caused ...
A large amount of caesium was released during the Goiânia accident where a radioactive source (made for medical use) was stolen and then smashed open during an attempt to convert it into scrap metal. The accident could have been stopped at several stages; first, the last legal owners of the source failed to make arrangements for the source to ...
They say the water is treated to reduce radioactive materials to safe levels, and then is diluted with seawater by hundreds of times to make it much safer than international standards.
Water portal; Tritiated water is a radioactive form of water in which the usual protium atoms are replaced with tritium atoms. In its pure form it may be called tritium oxide (T 2 O or 3 H 2 O) or super-heavy water. Pure T 2 O is a colorless liquid, [1] and it is corrosive due to self-radiolysis. Diluted, tritiated water is mainly H 2 O plus ...