Radixact®, Treatment Delivery Console (TDC)
Accuray Incorporated · Model 1057727
Software, Version 1.0.0.4, Treatment Delivery Console, Radixact (Operating Software for Radixact Treatment Delivery System)
Intended use: An assembly of devices designed to produce high-energy electrons to yield high-energy x-rays used for therapeutic applications, primarily to treat cancer. It provides a uniform radiation field of uniform intensity and predictable energy level, in a beam with well defined dimensions. The principle of operation is linear acceleration of electrons by means of electromagnetic (EM) microwaves. The output is used as a treatment beam on the patient, either directly or after passing a suitable target. The system typically includes signal analysis and display devices, patient and device supports, and software.
Key tips
- ·When no category-specific guidance fits, default to the manufacturer's own service manual and the general troubleshooting method in the Engineer's Guide.
- ·Run an incoming and annual electrical safety test regardless of how niche the device is.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Linac RF / magnetron output instability
HighSymptoms: Beam-on faults, dose-rate low or unstable, RF/HV interlocks.
Root cause: Magnetron at end of life, HV supply, or waveguide arcing.
Binary MLC leaf fault
HighSymptoms: Leaf stuck open or closed, delivery interlock, QA fluence errors.
Root cause: Pneumatic leaf actuator or valve fault in the binary multileaf collimator.
Gantry ring / slip-ring drive fault
MediumSymptoms: Rotation error, data or power dropouts during a helical delivery.
Root cause: Slip-ring brushes or the ring drive.
kVCT / MVCT imaging fault
MediumSymptoms: Poor daily image quality for IGRT setup, registration difficulty.
Root cause: Imaging source or detector aging or calibration drift.
Treatment-delivery console / software fault
MediumSymptoms: TDC will not connect to the delivery system, plan will not load, session cannot start.
Root cause: Console PC, network, or software fault.
Chiller / thermal fault
MediumSymptoms: Over-temperature interlocks, dose-rate instability.
Root cause: Chiller pump or heat-exchanger fouling.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Magnetron
OEM service; dosimetry re-commissioning required.
Class Periodic replacementRel. cost $$$$R&R Expert-level
Binary MLC valve bank / leaves
Class Major service partRel. cost $$$$R&R Expert-level
kVCT / MVCT detector
Class Major service partRel. cost $$$$R&R Difficult
Slip-ring brushes
Class Periodic replacementRel. cost $$R&R Difficult
Chiller pump / heat exchanger
Class Major service partRel. cost $$$R&R Difficult
Treatment-delivery console PC
Class Major service partRel. cost $$$R&R Moderate
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Magnetron OEM service; dosimetry re-commissioning required. | Periodic replacement | $$$$ | Expert-level |
| Binary MLC valve bank / leaves | Major service part | $$$$ | Expert-level |
| kVCT / MVCT detector | Major service part | $$$$ | Difficult |
| Slip-ring brushes | Periodic replacement | $$ | Difficult |
| Chiller pump / heat exchanger | Major service part | $$$ | Difficult |
| Treatment-delivery console PC | Major service part | $$$ | Moderate |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Follow the manufacturer's PM schedule
- ·Perform incoming and annual electrical safety testing per facility biomedical program
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Beam-on / RF fault
- This is an OEM-service linac - the BMET role is triage and coordination with Accuray.
- Record the exact fault codes from the treatment-delivery console and the equipment-room logs.
- Check chiller status and coolant flow first.
- Confirm all Accuray field-safety corrective actions are applied.
- Escalate a confirmed magnetron / waveguide fault to Accuray; keep the unit down until physics re-verifies output.
Symptom: Console will not connect / start a session
- Restart the treatment-delivery console.
- Confirm the network link to the delivery system and the database.
- Check the plan has transferred and is approved.
- Review the console error log.
- Escalate a persistent connectivity or software fault to Accuray.
Technical Specs
- MRI safety
- Labeling does not contain MRI Safety Information
- Sterile
- No
- Single use
- No
- Prescription use
- Rx only
- FDA distribution status
- In Commercial Distribution
- Device type (GMDN)
- Linear accelerator system
- FDA product classification
- Accelerator, Linear, Medical
- Manufacturer support
- 408-716-4600 · webhelp@accuray.com
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Varies by device - check the unit's own manual for facility placement guidance
Documents & Manuals
No documents available for this device yet.
Safety & Recalls
Synced live from the FDA openFDA API.
- RECALL
The set screws that connect the Standard Treatment Couch linkage arm to the roll motor can loosen over time allowing the couch to roll.
- RECALL
"MLC tickle error" may result in the delivered dose to effectively rotate from the planned dose.
- RECALL
There is an unintended drop of a secondary collimator housing that can occur during housing Xchange(TM) workflows. Specifically, during an automated housing Xchange, an interlock may interrupt this operation causing the collimator housing to partially attach.
- RECALL
Uncontrolled couch Z-axis movement (descent)
Troubleshoot this device with Bio
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