Posts tagged radiation

absurdonio:

A Hanford technician, wearing a protective mask fitted with the receiver of a two-way radio system, points to a blackboard drawing that demonstrates ‘how to talk your way around a huge nuclear reactor.’
By an unknown photographer, Hanford Works, near Richland, Washington, ca. 1961.
via The National Archives

absurdonio:

A Hanford technician, wearing a protective mask fitted with the receiver of a two-way radio system, points to a blackboard drawing that demonstrates ‘how to talk your way around a huge nuclear reactor.’

By an unknown photographer, Hanford Works, near Richland, Washington, ca. 1961.

via The National Archives

18 notes

judasnews:

Radioactive material released into the sea in the Fukushima nuclear power plant crisis is more than triple the amount estimated by plant operator Tokyo Electric Power Co, Japanese researchers say.

 

Japan’s biggest utility estimated around 4,720 trillion becquerels of cesium-137 and iodine-131 was released into the Pacific Ocean between March 21 and April 30, but researchers at the Japan Atomic Energy Agency (JAEA) put the amount 15,000 trillion becquerels, or terabecquerels.

 

Government regulations ban shipment of foodstuff containing over 500 becquerels of radioactive material per kg.

 

Takuya Kobayashi, a researcher at the agency, said on Friday the difference in figures was probably because his team measured airborne radioactive material that fell into the ocean in addition to material from contaminated water that leaked from the plant.

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KOFU—Nearly 150 children were exposed to excessive levels of radiation during examinations at Kofu Municipal Hospital during the past 12 years because a radiologist administered higher doses of radioactive materials than the recommended level.

A total of 145 children aged 15 or younger were given technetium in doses higher than levels recommended by the Japanese Society of Nuclear Medicine, the Japan Association of Radiological Technologists and other expert organizations.

About 40 children received technetium treatment at levels more than 10 times the recommended amount. Some children received more than one examination.

The level of whole-body lifetime internal radiation the children were exposed to is estimated to be about 30 millisieverts on average. The highest level was estimated at more than 150 millisieverts.

A survey of residents near the quake-stricken Fukushima No. 1 nuclear power plant indicated that the level of lifetime internal exposure for them is estimated at less than 1 millisievert, although simple comparisons are difficult.

The children received intravenous injections of medicines containing isotopic technetium, which is used as a medical tracer, mainly for kidney examinations.

36 notes