Robot finds sauna-like conditions to damaged reactor - CNN

A handout image number of Tokyo Electric Power Co. on the 17 April 2011, shows a Pacbot work within the third reactor building.Warm, humid air found no. 2 reactor building radiation levels 10% of which in other units were less than workers began pumping water from the unit turbine plants Tuesday

Tokyo (CNN) --eine robot probe found sauna-like conditions in the reactor No. 2 building at the Fukushima Daiichi nuclear power lower levels of radiation than damaged in other units, the plant owner reported on Tuesday.

Reactor No. 2 is believed to be water, thousands of tons of the cellar of its turbine plants and utility tunnel fill leaking are. Workers at the plant began the first of this highly radioactive liquid in a storage tank for contaminated water Tuesday, Japan's nuclear and industrial agency announced to pumps. But the Tokyo electric power company, which holds the six reactor plant, says it has no idea, how much is in a darkened room.

A robot in the unit reactor building Monday inserted temperatures of up to 41 degrees Celsius (106 F) and humidity in the range 94-99% found Tokyo Electric reported on Tuesday. These terms and conditions to the lenses of the probe, cameras, force company officials said operators, after a few minutes, to withdraw the device MISTED.

But the radiation, that it was only 4.1 millisieverts per hour-less than 10 percent of the doses in the No. 1 and no. 3 reactor buildings found.

In comparison, a dose of about 3 millisieverts per year receives the average population of an industrialized country. Emergency standards for workers fight the months old disaster limit their annual exposure to 250 millisieverts, while a CT scan produces just under 7 and a chest X-ray supplies a single dose of over. 05 millisieverts.

Doses of 100 millisieverts increase the long-term risk of cancer, while 1,000 millisieverts can produce radiation poisoning.

Engineers began deploying in the U.S. built "Packbots" in the reactors on Sunday. It is part of the effort to take a better look at conditions in the buildings where high radiation readings workers weeks out kept have received.

Cooling systems in Fukushima Daiichi, were knocked out about 240 km (150 miles) North of Tokyo, by the massive tsunami, the Japanese Pacific Coast March 11 posted after a massive earthquake. The disaster overheated and spewed large amounts of radioactivity in the environment raised on the worst nuclear accident since Chernobyl in the cores of the reactors 1-3.

Deaths: 13, 843
Is missing: 14,030
Out: More than 136,000
Source: Japanese police

The buildings that were reactors 1 and 3 House apart blown by hydrogen explosions in the first days of the crisis. A more hydrogen construction is assumed, that a water reservoir under the No. 2 reactor, have broken and spent the pools housing but still energetic fuel are concerns in units of 1, 3 and 4.

Tokyo Electric put this week a six-to nine - month timetable for the dismantling of the crisis and brings to a complete shutdown of the reactors.

The disaster led to mandatory evacuations of about 78,000 people within 20 km (12.5 km) of the plant and orders for people live a different 10 km protected, effects on another are 60, 000-plus. Several cities both within and outside this perimeter were asked to evacuate soon, while others have been preparing to stand for further instructions. Susan Olson, gene Shimada and Hiroo SASO contributed to this report for CNN.

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