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NUCLEAR CAMERAS FOR VISUAL
INSPECTIONS INCREASEOPERATIONAL SAFETY
Presented by
Aaron Huber, Diakont
ENGINEERED TO MOVE
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Agenda
• Background
• Defect Detection
• Fuel Inspection
• Periodic Inspection Programs
• Surface Defects & Identification
• Specialized Cameras
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Diakont – A Trusted Partner
Company Info
25 years in operation
Global staff of over 1,300 employees
Facilities in US, Italy, and Russia
ISO 9001:2008 certified
Radiation tolerant cameras deployed at research reactor facilities worldwide
Awarded for Innovation in Robotics
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Core Competencies
Digital I&C SystemsRad-Tolerant Video Systems
Robotics & Manipulators Underwater Decon
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Defect Detection
• Defects or component failures can lead to serious issues
• Reactor downtime
• Impacted safety
• Increased costs
• Increased regulatory scrutiny
• Increased stakeholder concern
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Fuel Inspection
• Fuel serial numbers
• Fuel cladding
• Overlooked defects could cause contaminant leakage into the primary reactor coolant system
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Periodic Inspection Programs
• Periodic inspection programs are imperative to maintain safe operations
• Ultrasonic and Eddy Current do not reveal surface defects
• Visual inspection technologies are considered the best method for this inspection
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Surface Defects
5.71mm
Line Crack Found in Reactor Cladding
7.93mm
Spider Crack Found in Reactor Cladding
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High Radiation Environment
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Defects viewed in high radiation environment with a standard CCD camera
Defects viewed in high radiation environment with a D40 camera system
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Defect Identification
• Defect detection can require more than just high quality imaging
• Sizing technology may be required to detect the length and width
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Measurement grid provides accurate sizing 1.94mm
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D40 Camera System
• Ultra high rad-tolerant split-head design
– Only non-browning optics and minimal electronics are located inside the camera - camera components are housed in the topside Camera
• Easy refurbishment using factory tuned tube replacement
• 1000+ systems deployed worldwide
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Radiation Tolerance 2x108 Rads(106 Rads/hr)
Image Black & white
Format 600+ H-TVL
Lighting Integrated LED
Zoom 2x analog (10:1 option)
Environment IP 68, 131’ submersible
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MicroCam
• Low cost color video camera for monitoring reactor maintenance activities
• Integrated LED lighting
• Exceptional image quality in low light
• Compact form factor: 1.125” diameter
• Plugs directly into monitor (no control unit required)
Radiation Tolerance 50,000 Rads
(100,000 Rads/hr)
Image Color
Format 420 H-TVL
Lighting Integrated LED
Sensitivity 0.025 lux (50 IRE) F1.2 3200°K
Environment IP 68, 200’ submersible
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Proton Camera System
• High definition, color, PTZ camera
• Utilized system for monitoring critical activities in the reactor, refueling, and spent fuel pools
10/16/2017
Radiation Tolerance 108 Rads (103 Rads/hr)
Image HD Color
Format 1080i / 720p
Lighting Integrated LED
Zoom 10:1 Optical; 4x digital
Environment IP 68, 131’ submersible
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CCTV Camera System
10/16/2017
• Permanently-installed, networked systems for containment and drywell online monitoring
– Equipment failure mitigation
– Critical data during emergencies
– Supervision of powered entries
– Also used during outages
• CCTV systems are standard plant equipment in Europe and Asia