Rogue Pellet Detector

Modified MiniTec linear bearing slides are employed in this two belt-driven scanning system, designed and built by LG Motion, working together with AEA Technology and BNFL Ltd.

These eleven metre long scanning tables allow misplaced or ‘rogue’ Mixed Oxide (MOX) pellets to be detected in nuclear fuel rods before installation into a Pressurised Water Reactor (PWR) reactor core.

Each table accommodates eight MiniTec linear bearing slides equipped with ball bearings, each revolving about a vertical axis and running against precision ground guide rails. Linear translation is via a DS series servo motor and belt drive, controlled through Parker DS140 Drive and X150 Controller. This traverses individual MOX fuel rods through a high energy X-ray detector head.

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