JAPAN ATOMIC INDUSTRIAL FORUM, INC.

for Japanese

ATOMS in JAPAN

2 July, 2015

Toshiba and IRID Develop Small Robot to Investigate Fukushima Daiichi-2 PCV Interior

On June 30, Toshiba Corporation issued a press release saying that it had developed a small robot, together with the International Research Institute for Nuclear Decommissioning (IRID), to investigate the interior of the primary containment vessel (PCV) of Unit 2 at the Fukushima Daiichi, damaged by the March 2011 tsunami.

The scorpion-like robot

Operators of the robot will begin training this month, with on-site use of the robot slated by the end of August.

To develop procedures for removing fuel debris, it is important to grasp exactly how the various objects lying inside the PCV of Unit 2 are distributed. The robot will thus be used to identify fallen objects and damage in the PCV, helping to ascertain the condition of an access route.

According to the recently revised mid-to-long-term roadmap toward Fukushima Daiichi’s decommissioning, the method for removing fuel debris from the first unit will be determined between April and September 2018, the first half of FY18.

The robot measures approximately 54cm long, 9cm high and 9cm wide, and weighs about 5kg. It is equipped with two cameras and LED lights, a radiation dosimeter, and a thermometer. Remotely operated via a wire cable, the robot will enter the PCV through a small pipe approximately 10cm in diameter.

Lights and cameras are attached to both the front and rear of the robot. Once the robot reaches its destination near the center of the PCV, its rear section will be raised like the tail of a scorpion. The LED lights and camera attached there will then illuminate and record the surroundings, compiling a video of a broad section of the interior of the PCV. The robot is self-righting, in case it tips over as it moves along.The robot is controlled by the "Sony PlayStation"-type controller!

Work is currently going on at Fukushima Daiichi-2 to remove shielding blocks in front of the PCV penetration (the X-6 penetration), through which investigative equipment — including the new robot — will enter.

You can also see the video prepared by Toshiba.

Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

SNS facebooktwitter

NPPs Map

Video

Fukushima Daiichi Nuclear Power Station -The year in review- (March 2018 – February 2019)

8 March, 2019
Fukushima Daiichi Nuclear Power Station -The year in review- (March 2018 – February 2019)04:56

Recent News

20 May, 2019
【52nd JAIF Annual Conference】 Leader Perspective: “French Nuclear Policy and Industry Update”
20 May, 2019
【52nd JAIF Annual Conference】 Session 3: “Diversity and Possibilities for Nuclear Technology”
15 May, 2019
【52nd JAIF Annual Conference】 Session 2: “Prospects for Development of Innovative Technology”
15 May, 2019
【52nd JAIF Annual Conference】 Fukushima Daiichi Report
15 May, 2019
【52nd JAIF Annual Conference】 Session 1: “Role of Nuclear Power as a Low-Carbon Energy Source”
10 May, 2019
JT60-SA’s Core Central Solenoid Installed at QST’s Naka Fusion Institute
10 May, 2019
President of Decommissioning Company Says “Feel” from Unit 3 Will Aid Decommissioning of Other Units
10 May, 2019
Demonstration Made by MHI and IRID of Robot Arm to Remove Fuel Debris from Fukushima Daiichi
24 April, 2019
【52nd JAIF Annual Conference】 JAIF Chairman Emphasizes Urgent Need for CO2-Free Nuclear Power
24 April, 2019
Electric Power Companies Ask NRA for Understanding on Extending Grace Period for Building Anti-Terrorism Facilities at NPPs
▲TOP