A: Hey, Yuki! Heard anything exciting lately?
B: Just work and stuff... why?

A: Remember that old nuclear power plant in Fukushima? They're doing something new there now!
B: Oh, really? What is it this time?

A: TEPCO started surveying one of the damaged reactors using robots. They aim to retrieve some melted fuel debris!
B: Wow, that sounds dangerous... haven't they tried something like this before?

A: Yeah, they did a small trial last November in reactor No.2 and retrieved about 0.7 grams of nuclear fuel debris.
B: I see... And which reactor are they surveying now?

A: They're looking at reactor No.3 this time around. The government and TEPCO plan to remove the fuel debris once they analyze it.
B: That sounds like a big task, especially since there's a lot of radiation involved!

A: Exactly! In fact, a survey conducted in 2016 showed up to 80 millisieverts per hour of radiation in the area they're working on now.
B: Wow, I wouldn't want to be there without a good protective suit...

A: Right! They'll use two remote-controlled robots for this survey and film the whole process too.
B: So, are they looking for a way to access the containment vessel where the debris is?

A: That's right! They want to see if it can be used as a passage for inserting devices into the containment vessel.
B: I can imagine how important this is for decommissioning the plant, especially given the high levels of radiation.

A: Definitely! This will be a challenging step, but necessary for ensuring safety and cleaning up the site.
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The operator of the Fukushima Daiichi nuclear power plant has begun surveying one of its damaged reactor units with remote-controlled robots in preparation for retrieving molten fuel debris.



Tokyo Electric Power Company, or TEPCO, started the survey in the No.3 unit building on Tuesday.



The plant in northeastern Japan suffered a triple meltdown after the 2011 earthquake and tsunami. An estimated 880 tons of molten fuel mixed with parts of structures are said to remain in the No.1, 2 and 3 units.



TEPCO for the first time retrieved 0.7 grams of nuclear fuel debris from the No.2 unit in a trial last November.



The Japanese government and TEPCO say they will start to remove fuel debris from the No.3 unit after analyzing retrieved debris.



TEPCO says the current survey is being conducted in a first-floor room where there is a containment vessel opening. A high level of radiation measuring up to 80 millisieverts per hour was detected in a survey conducted in 2016.



Two remote-controlled robots will be used in the survey to measure the amount of radiation for about one month, and the process will be filmed.



The survey aims to find out whether the area can be used as a passage for inserting devices into a containment vessel to retrieve fuel debris.



Removing the debris is considered the most challenging step in decommissioning the plant due to extremely high level of radiation.
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Quiz 1:
Question text: What company is operating the Fukushima Daiichi nuclear power plant?
A. NEC Corporation
B. Tokyo Electric Power Company (TEPCO)
C. Hitachi
D. Mitsubishi Heavy Industries

Quiz 2:
Question text: In which year did the Fukushima Daiichi nuclear power plant suffer a triple meltdown?
A. 2005
B. 2010
C. 2011
D. 2015

Quiz 3:
Question text: Where is the current survey being conducted in the Fukushima Daiichi nuclear power plant?
A. First-floor room where there is a containment vessel opening
B. Inside a containment vessel
C. Outside the No.3 unit building
D. In a high radiation area measuring up to 80 millisieverts per hour