This video from Japan says about itself:
Fukushima Unit 2 Scorpion Probe Dies But Sends Back Some Data
Feb 16 2017
From daily The Morning Star in Britain:
Japan: Fukushima’s high radiation wrecks robot
Saturday 18th February 2017
Nuclear disaster site’s clean-up hits big trouble
ROBOT probes sent into a wrecked Fukushima nuclear reactor suggest that the clean-up process faces worse than anticipated problems, the plant operator admitted yesterday.
Tokyo Electric Power Co (Tepco) said that the remote-controlled “scorpion” robot had been sent into the Unit 2 reactor’s containment vessel on Thursday to investigate the area around the core that melted six years ago.
However, its crawling function failed while climbing over highly radioactive debris.
The robot, carrying a dosimeter, thermometer and two small cameras, transmitted some data and visuals but failed to locate melted fuel, which is key to determining how to remove debris from the reactor.
The robot was abandoned inside the vessel at a point where it won’t block a future probe.
Preliminary examinations in recent weeks have detected structural damage to planned robot routes and higher-than-expected radiation inside the Unit 2 containment chamber, suggesting the need to revise robot designs and probes. Similar probes are planned for the two other melted reactors.
A tiny waterproof robot that can go underwater will be sent into Unit 1 in the coming weeks, but experts haven’t yet worked out a way to access the badly damaged Unit 3.
The operator needs to know the melted fuel’s exact location and condition and other structural damage in each of the three wrecked reactors to assess the best and safest ways to remove the fuel.
Despite the incomplete probe missions, Tepco is sticking to its schedule to determine methods for melted fuel removal this summer before starting work in 2021, said spokesman Yuichi Okamura.
The company is struggling with the plant’s decommissioning, which is expected to last decades, following the 2011 earthquake and tsunami that led to the meltdown.
Tens of thousands of residents are still unable to return to their home because of high radiation.
Earlier this month, another robot, designed to clean debris for the main scorpion probe, had to return midway through because two cameras became inoperable after two hours when its total radiation exposure reached a maximum tolerance of 1,000 sievert. This level would kill a human within seconds.
Local servicemen may have radiation poisoning from Fukushima — San Diego City Beat, USA: here.
The Fukushima nuclear meltdown continues unabated — Helen Caldicott: here.
Reblogged this on sdbast.
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