(Birds of a Feather...) Endoscope TEPCO Will Use for Reactor 2 CV Is Made by Olympuss

It was announced on January 17 that boring a hole in the Containment Vessel of Reactor 2 at Fukushima I Nuclear Power Plant was successful.

According to NHK News, it took 10 teams of workers, 4 in each team, who had been trained on Reactor 5 as a "mock-up". They received maximum 3 millisieverts radiation for their effort. No information of how long the work lasted.

Some people in Japan watching the NHK News reporting the event wondered, "Whose endoscope is it?" It turns out, most likely, that it is made by Olympus, of "cooking the books" fame.

First, NHK News (1/17/2012). The video clip of the news is at the link for now. (NHK News links are one of the shortest-lived among the Japanese media, on par with Yahoo Japan News.)

東京電力福島第一原子力発電所の廃炉作業に向けて、まだ分かっていない格納容器の内部の状況を内視鏡を使って初めて調べるため、１７日、２号機で内視鏡を入れる穴を開ける作業が行われました。

On January 17, workers at Fukushima I Nuclear Power Plant bored a hole for the endoscope that would be inserted inside the Containment Vessel of Reactor 2 to survey the condition inside the Containment Vessel for the first time since the accident.

福島第一原発では、メルトダウンが起きた１号機から３号機の溶けた核燃料の状態や、格納容器の内部の詳しい状況が分かっておらず、今後の廃炉に向けた作業や、安定した冷却を続けるうえで、大きな課題となっています。

At Fukushima I Nuclear Power Plant, the condition of melted fuels in Reactors 1, 2 and 3 and the condition inside the Containment Vessels are not yet known. The information is vital to the future decommissioning work and to the stable cooling of the reactors.

このため東京電力は、まず２号機の格納容器について、高い放射線量に耐えられる工業用の内視鏡を入れて、内部の状況や温度を詳しく調べることになりました。１７日は、１９日に予定している調査に向けて、原子炉建屋１階の北西側に作業員が入り、格納容器に配管などを差し込む予備用の貫通部に内視鏡を入れる穴を開ける作業を行いました。

TEPCO has decided to use an industrial-grade endoscope that can operate under the high radiation and survey the condition inside the Containment Vessel of Reactor 2 and measure the temperature. On January 17, as a preparation for the survey on January 19, workers entered the northwest corner of the 1st floor of the reactor building and bored a hole at a location on the Containment Vessel where pipes would be inserted [as necessary?].

作業は４人１組で、１０組、合わせて４０人の態勢で行い、東京電力によりますと、短時間に作業を終えるため、２号機と同じタイプの５号機などで訓練を繰り返してきたということで、１７日の作業での被ばく線量は最大で３ミリシーベルトだったということです。東京電力では、１７日の作業が順調に進んだことから、予定どおり１９日、格納容器に内視鏡を入れるということで、格納容器の内部が観察できれば、２号機が初めてとなります。

The work was done by 40 workers in 10 teams, with each team consisting of 4 workers. According to TEPCO, they had been training on Reactor 5 as a mock-up exercise in order to complete the work in a short period of time. Reactor 5 is the same type as Reactor 2. The radiation exposure for the workers for the January 17 work was maximum 3 millisieverts. Now that the work has been successfully completed, TEPCO will proceed as scheduled, inserting the endoscope on January 19. If successful, Reactor 2's Containment Vessel interior will be viewed for the first time [since the accident].

(The following images are taken from this blog site.)

Here's the screen shot from the NHK News:

Here's at the Olympus site:

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