provisional translation

Fukui Smart Decommissioning
Technology Demonstration BaseJapan Atomic Energy Agency

Introduction“Fukui Smart Decommissioning Technology Demonstration Base” (hereinafter
abbreviated as "Sumadeco") was adopted by the support policy "Regional Science andTechnology Demonstration Base Establishment Project" of the Ministry of Education,
Culture, Sports, Science and Technology in the supplementary budget for fiscal 2016.
The construction of “Sumadeco” started in May, 2017 and the operation began in June,
2018.
This facility is a base to support the growth of local companies about technology concerning thedecommissioning of nuclear power plants, and for the industry-academia-government to contribute to
the development of the regional economy and resolving the issues of decommissioning cooperatively,
and consists of the following three fields.

Decommissioning
Dismantling Technology
Demonstration Field

Laser Processing

Decommissioning

Test Field

Mock-up Test Field

Approach to Decommissioning
Decommissioning means that nuclear facilities such as nuclear power plants which were shut down are
to be dismantled safely after radioactive materials are removed. For the decommissioning of thePrototype Advanced Thermal Reactor Fugen (hereafter referred to as “Fugen”), dismantling of the
facilities have been conducted safely and rationally in accordance with the Reactor Regulation Act,taking into consideration for the facilities required to be operated and maintained even after the reactor
shut down.
JAEA intends to actively publish the results of technical development for the decommissioning and theaccomplishments gained through the decommissioning while providing collaboration and technicalcooperation with the related organizations so that other nuclear facilities in Japan involved indecommissioning are able to utilize them effectively.

What “Sumadeco” Aims for
In Fukui Prefecture, there are 15 nuclear reactors of various types, many companies being engaged in
the nuclear industry, and many nuclear-related education and research institutions.
Taking advantage of these characteristics of the region, “Sumadeco” was established as a base forsupporting the growth of local companies, providing them with the place where they can engage in acomprehensive range of activities from basic research to demonstration of decommissioning
technologies.
“Sumadeco” aims to establish a decommissioning business and foster a group of related companies byfacilitating local companies’ participation in the decommissioning business with strengthening theirtechnical capabilities.
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Outline of Sumadeco
Prefectural roadChuo-Kutsumi Line
Width of road 12m
Decommissioning Technology Demonstration Test Center

TsurugaHead Office

Building for Technology Demonstration Testand Interaction

Parking area

parking space

Garages

Facility name

Fukui Smart Decommissioning
Technology Demonstration Base (Sumadeco)

Establishment

June, 2018

Location

65-20, Kizaki, Tsuruga-city, Fukui

Site area

11,674.37m2

Building
structureThree-story building made of reinforced concrete(Building for Technology Demonstration Testand Interaction)

Total floor
space forconstruction

645m2(Building for Technology Demonstration
Test and Interaction)

Main facilities(Field)Decommissioning Dismantling Technology
Demonstration Field
Laser Processing Test Field

Layout of
Decommissioning Technology Demonstration Test Center

Decommissioning Mock-up Test Field
Interactive space for users such as companies

Facility Layout
Decommissioning Dismantling Technology Demonstration Field

Industrial technology
exchange room

Control room for
mock-up test

Researcher room 1

3F
Lavatory

2F

1F

3F

Decommissioning
Mock-up Test Field

MR System
Development
Room

Laser Processing
Test Field
Collaborative
research room

Laser oscillator
Laboratory for Technology
demonstration Test in Air
AtmosphereWorkstation
room

Researcher room 2

Industry collaborationand cooperation room

2F

Cylindrical water tank

Electricroom

Laboratory
Open ceiling space
Mock-up Testing
Laboratory
Shutter

1F

1F

Lavatory

Entrance hall

Building for Technology Demonstration Testand Interaction

Atom Plaza-2-

Decommissioning Dismantling Technology Demonstration Field
MR System
Development
Room

2F

Industrycollaboration
andcooperation room

Collaborative
research room

In the Decommissioning Dismantling Technology Demonstration
Field, the facility that allows to virtually experience the inside of
the plant “Fugen” with the actual scale and realistic sensation
using a Mixed Reality (MR) system is available.The facility
enables to carry out the required process for decommissioning
work such as prior confirmation and examination of the site,
confirmation of operability of the equipment and prediction ofworker exposure.

Utilization of Mixed Reality (MR) System
In order to carry out the decommissioning work safely and rationally, sufficient examination of work
procedures in advance is necessary. One way for sufficient examination is to use the Mixed Reality (MR)system that allows virtual experience of the site with actual size and realistic sensation, without entering
the site. The MR system enables visualization of the dose equivalent rate (mSv/h) at the site, examinationof the dismantling procedure of the facility, examination of the installation place and the size of thetemporary equipment (scaffolds, curing materials, shields) and confirmation of carry-in route andinterference of the equipment necessary for dismantling work.
The MR system is installed in the MR System Development Room and consists of a Head Mounted
Display (HMD), a PC for MR, optical cameras, a 50 inch display and so on. (See page 4 Table1, Figure 1)

Visualization of the dose
equivalent rate (mSv/h)Verification of rationality ofthe dismantling procedure

Verification of
workability

Examination for the installation
place of equipment

What is “Mixed Reality (MR) System” ?

This MR system is supposed to be utilized for the
purpose of developing human resources and improving
technical skills in order to support companies in Fukui
Prefecture that wish to enter the decommissioning
work. In addition, it is expected to be used for practicallessons for university students etc.
-3-

Approx.2.5m

One person can experience MR at a time and people
other than the experiencing person can see the images
viewed by the experiencing person as 2D images on
the display.

Optical camera (6 units)

Medium-sized display(50 inch)

Framed structure

By detecting the position and posture of the HMD andthe hand tool with the optical cameras, it allows the MRexperiencing person to see the correct 3D display
image. The motion space of MR is about 4.5m in width
× 4.0m in depth × 2.5m in height, and it is possible toexperience the site while moving through this space.

HMD

MR user (HMD 3D display image)
Approx.4.5m

High
performancePC

MR system image: MR user: General
participants
or observers

Specifications of Apparatus
Table 1. Primary Specification for MR System
Apparatus

Specifications

Note
Other dedicated devices for MD-10- Vibration Device- Controller for manipulating objects

HMD

Manufacturer: Canon
Model: MD-10
Display angle: 68°(Opposite), 60°(Horizontal)×40°(Vertical)
Display resolution: 1,920×1,200(WUXGA)
Display mode: 3D display
Photographing angle of view: 73°(Opposite), 66°(Horizontal)× 40°(Vertical)
Photographing resolution: 1,920×1,080(FULL HD)
Weight: Approx. 1,040 g
Number of unit: 2 unitPC
for MR

Manufacturer: HP
Model: Z840
CPU: Xeon® E5-2643v4 3.40GHz x 2
GPU: Nvidia Quadro P6000
Memory capacity: 64GB
Disk SSD/HDD: 256GB SSD/512GB SSD/1T HDD
Number of unit: 2 unit

Software for MR- MR platform- MR Visualizer- InfiPoints for MR

Display

Manufacturer: NEC
Model: LCD-E505
Size: 50 inch model(127cm)
Liquid crystal panel / Backlight: White LED Backlight(Direct type)
Display pixel number: 1,920×1,080
Pixel pitch: 0.0570mm
Display colors: Approx. 16,770,000 colors
Number of unit: 1 unit

OpticalcameraManufacturer: Vicon
Model: Vero v2.2
Resolution: 2,048×1,088
Maximum frame rate: 330Hz
Number of unit: 6 units

Optical camera software- Vicon Tracker

3D lasermeasurement
system

- 3D laser measurement system
Manufacturer: PENTAX
Model: S-3180V
Number of unit: 1 unit
- Handheld Scanner
Manufacturer: Fuji Technical Research
Model: F6 SMART
Number of unit: 1 unit
- PC for laser measurement data processing
Manufacturer: DELL
Model: Precision 5510
Number of unit: 1 unit

Software for processing large-scalepoint clouds- InfiPoints- Z+F LaserControl- ECHO- PC for VR
Manufacturer: MouseComputer
Model:DAIV-NG5810S1-S5- HMD for VR
Manufacturer: Oculus
Model: Rift S

Software for VR- InfiPoints for VR

S-3180V

F6 SMARTPC for VR,
HMD

Figure 1. Configuration of MR System (MR System Development Room)
Framed structure
PoE
PC for MR
Software・Controller
・Wireless mouse, Keyboard
・Display(24 inch）

Optical camera
position sensor

HMD
Display(50 inch)

Resolution
converter・Marker board
・Calibration kit-4-・Attachment for
optical camera

Equipment for
setting up
optical camera

Controller

Capability of Apparatus
Training with Mixed Reality (MR) System
The MR system is applied to decommissioning work to be used for observing
the inside of the plant from the worker’s point of view with the actual scale, andalso for education and training of optimum working procedures in each phase of
the progress of the decommissioning work such as carrying in/out, installationand dismantling etc. of equipment.

イメージ
差替え

Confirmation of work site

(Realistic sensation with the actual scale, checked with worker’s eyes)

Working space

Confirmation of workability for
Tool interference

Working posture<Major features>
1. Examination of optimum work procedures
2. Examination of exposure dose of workers
3. Confirmation of workability (Tool interference, Working posture etc.)-5-Laser Processing Test Field
The Laser Processing Test Field has an experimental
system and a computer calculation system to develop
laser cutting/welding technology for decommissioning.
The experimental system consists of a laser oscillator
and three multi-jointed arms equipped with devices
such as a laser head. The computer code predicts
melting and solidification phenomena in materials
based on laser heat input and heat transfer models.

Laser oscillator

Laboratory
Workstation room

1F

Multi-Jointed Arms Laser Processing System
Three multi-jointed arms equipped with a laser head, a test specimen holder and a spattercollector are installed in the laboratory. A 10kW CW laser oscillator is placed in a different
area and connected to the laser head by an optical fiber. Various kinds of laser cutting/welding
processes are examined and planned using this test system.
Spatter collector arm

Laser head arm

Spatter collector
Laser head

Test specimen

Test specimen holder arm

Three multi-jointed arms

10kW CW laser oscillator

Multi-Jointed Arms Laser Processing System
This computer code adopts a two-dimensional modelof laser beam direction and sweep direction. The code
covers heat transfer, melting and solidification bytaking account of laser heat input, beam diameters,
sweep rates and thermal properties of materials.
The calculation results help the planning of laser
processing condition and are also useful forunderstanding of physical phenomena in heating andmelting regions.

StoragedeviseProcessing PC

Workstation

ConsoleEngineering Workstation-6-

Specifications and Performance
Multi-Jointed Arms Laser Processing System● Laser power unit : 10kW fiber laser (CW)
● Multi-jointed arms : (1) Laser head arm(2) Test specimen holder arm (Maximum weight 15kg)(3) Spatter collector arm
Experiments of cutting, welding, perforation and surface heat treatment are implemented by theoperation of the three arms under different laser processing conditions. The cutting test of a triangularprism shaped specimen is shown in photos below, as an example.
Laser head

Laser head
Sweep direction

Thermo-meter

Test specimen

specimen
Spatter collector
Lateral view of specimen

Laser cutting experiment

Laser Melting/Solidification Calculation System● Engineering Workstation

Model number : Dell Precision T7910
CPU: Dual Intel Xeon processor E5-2637 v4
Memory: 64GB 2400MHz DDR4 RDIMM ECC● Simulation code (2D)
Physical model : Thermal conduction, Thermal convection, Melting, Solidification, Assist gas flow
Laser processing calculation : Cutting, Welding, Surface heating for hardening
The figures 1 and 2 show the experimentand calculation result of laser cutting by
4kW output at a sweep rate of
150mm/min. The test specimen made ofSS400 steel is 30mm in thickness.

Laser headSpecimen

The calculation result has revealed thetemperature distribution and the molten
metal behavior affected by an assist gas
flow and gravity.
The formation of a molten pool is
Fig.1 Laser cutting test
indicated in both the X-ray observation(Fig.3) and the contour of the calculation
result (Fig.4). This test was executed
Molten area
under the condition of 300W laser power
irradiation on an aluminum plate.
Fig.3 Molten pool observation by X-ray (Spring-8)-7-

Fig.2 Laser cutting calculation（2D）

Molten area

Fig.4 Molten pool calculation (2D)

Decommissioning Mock-up Test Field
The Decommissioning Mock-up Test Field
is available for verifying or demonstrating
research achievements obtained in theDismantling Technology Demonstration
Field and the Laser Processing Test Field,
andcuttingtechnologies
in-housedeveloped by local companies with actual
equipment and mock-up materials used in“Fugen”.
The field can also be used for preconfirmation, experience and acquisitionof dismantling work.

Laboratory for Technology
demonstration Test in Air Atmosphere

Control room for
mock-up test
Industrial
technology
exchange room

Cylindrical water tank

Electricroom

Researcher
room 2

Open ceiling space
Mock-up Testing
Laboratory
Shutter

1F

Lavatory

Lavatory

Entrance hall

Researcher
room 1

3F

Technical Demonstration Test Area for the Underwater
The Mock-Up Test Room in this field consists of “Technical Demonstration Test Area for theUnderwater” and “Technical Demonstration Test Area in Air Atmosphere”.
In the Technical Demonstration Test Area for the Underwater, a cylindrical water tank with aheight of about 10.5m is placed, and a Seven-Axis Remote Underwater Robot is installed in thecylindrical water tank. Water level in the cylindrical water tank can be arbitrarily adjusted below
10m to the test condition, and a water circulation and a purification system is equipped with thetank.
One example of demonstration experiments involves placing a simulated material in thecylindrical water tank as a high-dose reactor structure and cutting it with the remote-controlled
articulated underwater robot equipped with a laser cutting head attaching on the tip.
In addition, there are many similar storage tanks in the nuclear facilities. In this area, the work
environment for dismantling and welding those tanks can be simulated and safe and efficientworking methods can be confirmed and acquired in advance.

Monitoring image
by monitoring camera-8-Technical Demonstration Test Area in Air Atmosphere
The Technical Demonstration Test Area in Air Atmosphere － the Laboratory of Technical
Demonstration Test in Air Atmosphere－ has approximately 4m in ceiling height, 5m in width and
7m in depth. The laboratory has a built-in smoke exhaust device, and the working environment istaken into consideration to be able to maintain cleanliness of the inside area by collecting thefumes and dust generated by cutting.
The Laboratory can be used for the following purposes with the simulant materials and the actual
materials used in “Fugen”：- Collecting the fumes and dust generated by cutting, and acquiring and verifying data on aparticle size distribution- Demonstrating remote-controlled cutting technology by a Six-Axis Remote Aerial Robot- Verifying cutting tools and various devices uniquely developed by local companies- Pre-confirmation and acquiring work skills for dismantling and decontamination work including
cutting and disassembling with cutting tools such as a general-purpose diamond wire saw andabrasive tools- Work management experience and practice using a green house and protectors actuallyused on the dismantling site
Since the decommissioning work requires the same level of safety management and work
management as in-operation, it is a great advantage for local companies planning to enter thedecommissioning business in the future to be able to confirm dismantling work such as cutting or
disassembling and decontamination work in advance by using the Decommissioning Mock-up Test
Field. Moreover, it is very useful to verify whether devices and industrial tools in-house developedby local companies are usable on the actual site.
Smoke exhaust andpurification facility(Processing amount
1,000m3/h)

Approx. 4m

Approx.
5m

Approx.
7m

Approx.
3m Approx.
3m

Laboratory of Technical
Demonstration Test in Air Atmosphere

Greenhouse

Six-Axis Remote Aerial Robot Local exhaust device

Main equipment in the Technical Demonstration Test Area in Air Atmosphere

Cutting using gasoline

Cutting with diamondwire saw

Remote-controlledlaser cutting

Images of various cutting tests-9-

Verification of dismantling
actual equipment and materials

Specifications and Capabilities of Equipment
Description of Specifications

Overhead traveling crane(Lifting load： 2.8 tons）

Control room on the 3rd floor- Checking water level in the underwater tank
- Checking a condition in the underwater tank
(Underwater fixed-point camera,
Underwater drone)- Operating Seven-Axis Remote Underwater Robot

Technical Demonstration Test
Area for the UnderwaterTechnology Demonstration
Test Area in Air Atmosphere

Cylindrical Water Tank
(Outer Diameter: Approx. 4.5m)- Seven-Axis Remote Underwater Robot- Lifter for robot- Sample holder

Laboratory of Technical
Demonstration Test in Air Atmosphere- Six-Axis Remote Aerial Robot- Smoke exhaust and purification facility

1. Technical Demonstration Test Area for the Underwater- Cylindrical Water Tank
(Height : Approx. 10.5m, Outer diameter: Approx. 4.5m)- Seven-Axis Remote Underwater Robot- Underwater monitoring camera etc.
2. Technical Demonstration Test Area in Air Atmosphere- Six-Axis Remote Aerial Robot- Smoke exhaust and purification facility etc.
3. Shared device- High-Power Laser Cutting Device (Output: 30kW)- Wet Blasting Equipment(for Decontamination)- Compressed Air Device- Various cutting tools etc.
- 10 -

Description of Capabilities
Cylindrical Water Tank-

Outer diameter: Approx. 4.5m-

Height: Approx. 10.5m (Water depth : Max. 10m)-

Material: Stainless-steel<Main functions>-

Seven-Axis Remote Underwater Robot and Lifter-

Water circulation and purification system-

Water level meter-

Underwater monitoring camera, Underwater light-

Window for checking the inside-

Ladder for access to the inside-

Platform (Load resistant to the floor: 200kg/m2)

Looking downfrom the top(Filtration accuracy: 2μm)

Seven-Axis Remote Underwater Robot

Six-Axis Remote Aerial Robot-

Model number: PA-25-UW-

Model number: MOTOMAN-MH50-

Manufacturer: Mitsubishi Heavy Industries, Ltd.

-

Manufacturer: Yaskawa Electric Corporation-

Weight capacity: 25kg-

Number of axis: Six-

Operating temperature range: 0-50 ℃-

Weight capacity: 50kg-

Usage environment: Either underwater-

Operating temperature range:(Water depth: Over 10m)
or in air atmosphere0-45 ℃-

Usage environment:
In air atmosphereHigh-Power Laser Cutting Device-

Model number: YLS-30000

Compact, Manual Wet Blasting Equipment(for Decontamination)-

Manufacturer: IPG Photonics-

Size: 1000(W) x 1100(D) X 1570(H)mm-

Rated output: 30 kW-

Power consumption: Max 1.0kW-

Oscillation wavelength: 1070 - 1080 nm-

Effective processing range:Φ600 x (H) 250 mm-

Oscillation type: Continuous Wave (CW)-

Weight: 150kg-

Abrasive materials used : Spherical ceramics(Glass beads / Zirconia beads)

Laser oscillator

Laser cutting head

Fibers for laser transmission (HLC-16)- 11 -

Establishment of Sumadeco
While the necessity for decommissioning of nuclear power plants has been increasing
domestically and internationally, JAEA supports the enhancement of technical capabilities of local
companies leading the decommissioning business to contribute to local economic development
and business solutions for decommissioning, taking advantage of the characteristic of Fukui
Prefecture and cooperating with electric power suppliers in the Wakasa area.

Advantages of Fukui Prefecture★ Approximately one quarter of nuclear power plants in Japan
including the first commercial light water reactor in the country arelocated in Fukui Prefecture.
★ Companies in Fukui Prefecture have been engaged in theconstruction, maintenance, operation, and inspection of nuclear
power plants in the prefecture for a long time, and are familiar with
nuclear power plants.
★ A lot of educational and research infrastructures such as Japan
Atomic Energy Agency (JAEA), Research Institute of Nuclear
Engineering, University of Fukui, the Wakasa Wan Energy ResearchCenter, and Fukui International Human Resources Development
Center for Atomic Energy are located in Tsuruga city.
★ Fukui has a collaboration basis under the Fukui energy researchand development centralization plan.

Fugen Decommissioning
Engineering Center

Prototype Fast Breeder
Reactor Monju

Deployment for Nationwide and Worldwide Markets
We aim to establish a solid foundation for the decommissioning business and form a group of relatedcompanies by facilitating participation of the companies in the prefecture into the decommissioning
business by enhancing their technological capabilities.

Collaboration system○ Cosponsor
Fukui Prefecture, University of Fukui,
The Wakasa Wan Energy Research Center
Companies in Fukui○ Cooperative company etc.
prefecture including
RIKEN
attracted companies
Tsuruga Chamber of Commerce and Industry
Fukui University of Technology
RANDEC
Six companies
Electric power suppliers

Decommissioning
DismantlingTechnology
Demonstration Field
Laser Processing
Test Field

Field

Decommissioning
Mock-up Test Field

Deployment for nationwide and worldwide markets- 12 -

Access

Fukui Pref.
TsurugaPeninsula
Tsuruga city

TsurugaPort■ By Taxi: About 15 minutes from
JR Tsuruga Station■ By Car : About 20 minutes from
Tsuruga IC on the Hokuriku Expressway

65-20, Kizaki, Tsuruga, Fukui, 914-8585 Japan
TEL: +81-770-21-5033
FAX: +81-770-25-5782
Website: https://www.jaea.go.jp/04/tsk/fsd/index.html

Fukui Smart Decommissioning
ふくいスマートデコミッショニング
Technology
Demonstration Base
技術実証拠点Tsuruga Head Office

City Hall

Tsuruga Sta.

Nursing Univ.

Tsuruga
IC

Japan Atomic Energy Agency (JAEA)
Tsuruga Comprehensive Research and Development Center

2024.1