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A new type of robot to probe inside damaged Fukushima nuclear reactor

Toshiba unveils robot to probe melted Fukushima nuclear fuel, WP, By Mari Yamaguchi | AP, January 28 YOKOHAMA, Japan — Toshiba Corp. unveiled a remote-controlled robot with tongs on Monday that it hopes will be able to probe the inside of one of the three damaged reactors at Japan’s tsunami-hit Fukushima nuclear plant and grip chunks of highly radioactive melted fuel.

The device is designed to slide down an extendable 11-meter (36-foot) long pipe and touch melted fuel inside the Unit 2 reactor’s primary containment vessel. The reactor was built by Toshiba and GE.

An earlier probe carrying a camera captured images of pieces of melted fuel in the reactor last year, and robotic probes in the two other reactors have detected traces of damaged fuel, but the exact location, contents and other details remain largely unknown.

Toshiba’s energy systems unit said experiments with the new probe planned in February are key to determining the proper equipment and technologies needed to remove the fuel debris, the most challenging part of the decommissioning process expected to take decades.

…….. The probe will mainly examine the fuel debris’ physical condition rather than its radioactive components or other details which require actual sampling and safe storage……. https://www.washingtonpost.com/world/asia_pacific/toshiba-unveils-robot-to-probe-melted-fukushima-nuclear-fuel/2019/01/28/4214f596-2314-11e9-b5b4-1d18dfb7b084_story.html?utm_term=.3bfe336cb31c

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January 31, 2019 - Posted by | Fukushima continuing

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