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Further investigations were done after the cause of the leakage. A valve was opened by error, this caused an inflow of water to the tank. Around 2 p.m. on 19 Feb. an alarm went off, indicating that the tank was dangerously filled. This alarm was ignored, because no radioactive water was transferred to the tank.
Fukushima nuclear accident. Coordinates: 37°25′17″N 141°1′57″E. Fukushima nuclear accident. Part of the 2011 TÅhoku earthquake and tsunami. The four damaged reactor buildings (from left: Units 4, 3, 2, and 1) on 16 March 2011. Hydrogen-air explosions in Units 1, 3, and 4 caused structural damage. [1] Date.
Radiation protection, also known as radiological protection, is defined by the International Atomic Energy Agency (IAEA) as "The protection of people from harmful effects of exposure to ionizing radiation, and the means for achieving this". [1] Exposure can be from a source of radiation external to the human body or due to internal irradiation ...
1985 to 1987 – The Therac-25 was a radiation therapy machine produced by Atomic Energy of Canada Limited (AECL). It is known to be responsible for six accidents between 1985 and 1987, in which patients were given massive overdoses of radiation, which were in some cases on the order of hundreds of grays.
The reported health effects are consistent with high doses of radiation, and comparable to the experiences of cancer patients undergoing radio-therapy [ 15 ] but have many other potential causes. [ 14 ] The effects included "metallic taste, erythema, nausea, vomiting, diarrhea, hair loss, deaths of pets, farm and wild animals, and damage to ...
Radiation exposure is a measure of the ionization of air due to ionizing radiation from photons. [1] It is defined as the electric charge freed by such radiation in a specified volume of air divided by the mass of that air. [1] As of 2007, "medical radiation exposure" was defined by the International Commission on Radiological Protection as ...
Iodine-131. Iodine-131 (131I, I-131) is an important radioisotope of iodine discovered by Glenn Seaborg and John Livingood in 1938 at the University of California, Berkeley. [3] It has a radioactive decay half-life of about eight days. It is associated with nuclear energy, medical diagnostic and treatment procedures, and natural gas production.
One helicopter made a landing at Fukushima Airport after experiencing rotor icing and exposed some Australian and New Zealand search and rescue team members to low levels of radiation. Radiation precautions were taken at U.S. bases, including USS George Washington leaving port at Yokosuka after
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