2022-05-25 | NYSE:J | Press release

Harnessing innovation to support complex nuclear cleanup

DALLAS, May 25, 2022 /PRNewswire/ — Jacobs (NYSE:J) designed and built a robotic tool to obtain crucial information about the status of a damaged nuclear reactor at Fukushima Daiichi in Japan.

The remote-controlled device will collect pebble-like debris that settled to the bottom of the reactor’s containment vessel after the meltdown caused by the March 2011 earthquake and tsunami.

A prototype of the device has successfully passed extremely demanding factory acceptance and performance tests to meet the requirements of Mitsubishi Heavy Industries (MHI), which is leading the tool development project. It is expected that after the selection in Japana radiation-resistant version will be built that can perform the important task of recovering samples from the highly contaminated reactor.

“This is a great example of how we combine innovative engineering and deep nuclear knowledge to help decommissioning agencies meet the challenge of turning old sites into a safe end state,” said Jacobs. Energy, senior vice president of security and technology. Karen Wiemelt.

The exact nature of the debris is currently unknown, and examination of recovered debris samples will provide crucial data for the next steps in the cleanup and dismantling of the Fukushima reactors.

Designed by Jacobs engineers in the UK, the robotic tool had to meet over 300 functional, operational, performance and geometric requirements. It also had to be small enough to penetrate the damaged containment vessel and pick up sand and pebbles up to 10 millimeters by deploying a bucket-type retrieval device.

Tests have shown that a remote operator, guided by images from an integrated camera, will require no more than eight minutes to insert the device into the containment vessel and retrieve debris samples, minimizing thus the impact of radiation damage on the operation of the device.

ICM implemented this project through the International Institute for Nuclear Decommissioning Research, supported by funding from from Japan Ministry of Economy, Trade and Industry.

At Jacobs, we strive today to reinvent tomorrow by solving the world’s most critical problems for thriving cities, resilient environments, critical outcomes, operational advancements, scientific discovery and advanced manufacturing, transforming ideas abstracts into world-transforming realities. for real. With $14 billion in revenue and a talent force of approximately 55,000 people, Jacobs provides a full range of professional services, including consulting, technical, scientific and project delivery services for the public and private sector. To visit jacobs.com and connect with Jacobs on Facebook, instagram, LinkedIn and Twitter.

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