Diakont - Fuel Assembly Inspection System
Our Fuel Assembly Inspection System is comprised of four D40 cameras installed on a ring assembly with integrated auxiliary high power lighting. This configuration speeds up inspection time up to three times as fast as single-camera systems.
- Time saving: Inspect all four sides of fuel assemblies simultaneously
- No impact: Inspection performed off critical path
- Proven technology: Based on Diakont’s state-of-the-art D40 rad-tolerant camera systems
- Versatile control: PTZ camera control for bottom nozzle inspection
- Tailored to fit: Customizable installation to meet any plant configuration
Diakont has developed the FAIS to maximize process efficiency; by assembling four D40 cameras with auxiliary high-power lighting in a ring-like shape.
The Fuel Assembly Inspection System (FAIS) speeds the inspection process up by three times compared to a single-camera system.
Inspections on spent fuel increase safety and, when done right, minimize outage downtime, resulting in cost savings for plant operators.
The Process
Installed during routine fuel transfers (refueling cavity to the spent fuel pool), the FAIS is placed in the transfer canal near the upender (in the spent fuel building). It is then positioned directly above the upender, with each camera oriented perpendicular to the four faces of the fuel assembly. The inspection begins once the fuel is extracted from the upender. There is zero impact (in added time or motion) on the fuel transfer operation.
High Quality and Reliability
One of the four D40 cameras is installed on a pan/tilt mount for remote manipulation and viewing on the bottom nozzle. The D40 camera system has won popularity among nuclear power plant builders, contractors, and operators worldwide, making it the ideal solution for fuel inspection applications. Thousands of systems have been deployed in the United States, Japan, France, Finland, and other countries.
- Camera Tube: 2/3” E-Chalnicon
- Resolution: 600+ H-TVL
- Signal/Noise Ratio: ≥ 46 dB
- Sensitivity: 16 lux
- Zoom: 2x analog (10:1 option)
- Iris: Auto / Remote; F/1.4 to 16
- Cumulative Dose: 5*108 Rads
- Maximum Dose Rate: Up to 3*106 Rads/hr
- Lights: Integral, LED
- Housing: Stainless Steel
- Protection: IP 68, 40m submersible