With necessity the mother of invention, Toshiba Corp. on Friday released details of a 43-foot long probe designed to do wide scanning inside the No. 2 reactor at the Fukushima Daiichi Nuclear Generating Station, where a triple meltdown occurred in 2011.
Technicians are expected to deploy the probe in late January. Its initial target is the pedestal floor of Unit 2, which lies underneath the reactor core and is expected to contain some of the reactors melted fuel.
The probe, which is 4.7 inches in diameter, includes a camera, a dosimeter and a thermometer. If there are no obstructions in the way, it could reach the bottom of the reactor vessel, technicians said.
The probe is similar to one used in February, put to use prior to the remotely-controlled scorpion-configured robot that was deployed in late February. Several remote-controlled probes have failed and been abandoned as it was feared trying to retrieve them risked having them fail in a place that would obstruct further attempts to examine the wreckage.
Toshiba ESS created the new probe with help from the private and publicly funded International Research Institute for Nuclear Decommissioning.
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