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Agence France-Presse

The operator of Japan’s stricken Fukushima nuclear power plant said on Monday it will send a probe inside a battered reactor this week for a trial removal of radioactive debris.
Tokyo Electric Power Company (Tepco) aims to retrieve a tiny sample of the estimated 880 tons of radioactive debris that is believed to sit inside reactors at the tsunami-hit nuclear plant.
The sample will be studied for clues about the condition of the inside of the reactors and their hazardous contents, a crucial step towards decommissioning the plant.
“We will proceed carefully by putting safety as our highest priority,” a Tepco official told a news conference Monday.

The debris has radiation levels so high that Tepco has had to develop specialised robots that can withstand them to function inside.
Removing it has long been dubbed the most daunting challenge in the decades-long project to decommission the Fukushima Daiichi nuclear plant.
Three of Fukushima’s six reactors were operating when the tsunami hit on March 11, 2011, knocking down cooling systems and sending them into meltdown in what became the worst nuclear disaster since Chernobyl.
In three units of the Fukushima plant, fuel and other material melted and then solidified into highly radioactive “fuel debris”.


Tepco deployed in February, two mini-drones and a “snake-shaped robot” into one of the three nuclear reactors, as part of the preparations for the removal task.
The latest probe, equipped with a robotic arm, is expected to take about a week to reach radioactive debris inside the reactor and should emerge again with the sample next month.
Japan began almost a year ago to release waste water from the stricken plant into the Pacific Ocean.
The step has sparked a diplomatic row with China and Russia, both of which banned seafood imports, although Japan insists the discharge is safe, a view backed by the UN atomic agency.


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Japan needs special robots to begin removing nuclear debris from Fukushima nuclear reactor

Reactor buildings of the Fukushima Daiichi nuclear power plant in Fukushima Prefecture. Photo: AP

A Tepco spokesperson shows photos captured by a robotic probe inside one of the three melted reactors at the tsunami-wrecked Fukushima nuclear power plant, on April 4, 2023. Photo: AP

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A supermarket sign in the Sumida district of Tokyo indicating a limit on bottled water sales after quake-related media reports caused customers to hoard essentials. Photo: AFP

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High waves hit the side of a road in Fukushima on August 16. Photo: Kyodo

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Atomic bomb survivor Bun Hashizume near the Dome in the Hiroshima Peace Memorial Park.  Photo: Kikkawa Hikaru

A young Bun Hashizume prior to the Hiroshima atomic bomb explosion. Photo: Handout 

93-year-old atomic bomb survivor and activist Bun Hashizume. Photo: Aya Hanabusa

Anti-nuclear group members including survivors of the US atomic bombing of Nagasaki stage a peace rally in the city’s Peace Park on July 7. Photo: Kyodo

News

Asia

East Asia

The debris has radiation levels so high that specialised robots had to be developed to function inside a battered nuclear reactor


The debris has radiation levels so high that specialised robots had to be developed to function inside a battered nuclear reactor.
