Accuray 8-061588-002 I/O Interface Board for TomoTherapy Systems

Product Overview

The Accuray 8-061588-002 is an input/output (I/O) interface assembly circuit board designed for the TomoTherapy family of image-guided radiation therapy systems, including the TomoTherapy Hi-Art and TomoHDA treatment delivery platforms. As a core element of the treatment system’s control electronics, this interface board bridges the main controller and the various subsystems of the linear accelerator, translating command signals from the treatment planning and delivery software into the discrete and analog signals that drive gantry motion, multileaf collimator operation, couch positioning, beam control, and interlock monitoring throughout the machine. The board’s role is fundamental: without reliable signal interfacing at this layer, the coordinated, sub-millimetre precision that defines TomoTherapy delivery cannot be achieved.

Engineered for a medical-grade environment, the 8-061588-002 is built to the stability and repeatability standards demanded by clinical radiotherapy, where signal timing, signal integrity, and fault-free operation directly affect patient safety and treatment accuracy. The board integrates multiple I/O channels for reading sensor feedback from the treatment head and delivery subsystems, and for issuing control outputs to actuators, amplifiers, and safety interlocks. Its design reflects the integrated architecture of the TomoTherapy platform, where CT-style imaging and radiation delivery operate as a single synchronised unit under central software supervision.

Because Accuray has since evolved the TomoTherapy platform toward the Radixact generation, the 8-061588-002 is no longer produced by the original equipment manufacturer, and new stock is no longer available through primary channels. The part nevertheless remains mission-critical for the very large installed base of TomoTherapy Hi-Art and TomoHDA systems still in daily clinical operation worldwide. For hospital biomedical engineering teams and independent radiotherapy service organisations, a verified Accuray 8-061588-002 in inventory is the difference between restoring a treatment machine to service within hours and facing an extended clinical downtime that directly impacts patient treatment schedules. Sourcing this board through a specialist supplier with functional verification capability is therefore an operational necessity rather than a convenience.

Technical Specifications