Magnetron Output Monitoring for Predictive Radiotherapy Maintenance
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Solution Overview
Problem
Current methods for servicing radiotherapy devices, particularly magnetrons, require on-site diagnostic testing, leading to unplanned downtime and inefficient maintenance scheduling, as the degradation of components is not intuitively linked to specific data patterns.
Innovation Solution
A method involving data collection from radiotherapy devices, including magnetron output measurements, sent to a central server for analysis, allowing predictive maintenance to identify when magnetron replacement or repair is needed, reducing downtime by scheduling maintenance remotely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional magnetron with a single anode structure is used, then the device complexity is low, but the beam quality and treatment precision are insufficient
Solution Approach 1:
The single anode structure is divided into multiple anodes (first anode, second anode, third anode) with different potentials. Each anode generates electron beams with different energies, allowing for multi-energy beam generation and improved treatment precision through segmented functional zones within the magnetron.
2Adaptability or versatility
If a conventional magnetron with fixed beam energy is used, then the device complexity is low, but the adaptability to different treatment requirements is limited
Solution Approach 1:
The magnetron employs multiple anodes at different potentials that can be independently controlled, enabling dynamic adjustment of beam energies. This allows the system to adapt to different treatment requirements by selecting appropriate beam energies without requiring multiple separate magnetrons.
3Productivity
If a single anode magnetron is used, then the manufacturing cost is low, but the treatment efficiency for complex tumors is reduced
Solution Approach 1:
The multi-anode magnetron structure enables a single device to perform multiple functions by generating electron beams of different energies simultaneously or sequentially. This allows one magnetron to replace what would traditionally require multiple separate devices, improving treatment efficiency for complex tumors while maintaining cost-effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient scheduling of magnetron maintenance outside clinical hours, minimizing disruption and optimizing resource use by identifying impending failures before they cause safety overrides.
Implementation Method 1
a cathode (22) arranged to face the first anode (211), the second anode (212) and the third anode (213) and having a first potential which is lower than a second potential of the second anode (212) and a third potential of the third anode (213)
Implementation Method 2
a magnet assembly (203) arranged between the first anode (211), the second anode (212) and the third anode (213) and having a magnetic field extending in a direction substantially perpendicular to an electron beam generation direction
Implementation Method 3
a magnetron for a radiotherapy device, comprising: a cathode (22) arranged to face the first anode (211), the second anode (212) and the third anode (213)
Data Source
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AI summary
There is provided a particle accelerator comprising a waveguide for accelerating electrons along an acceleration path and a magnetron configured to supply a radiofrequency electromagnetic field to the waveguide. An oscilloscope is connected to the magnetron and configured to provide signals indicative of the magnetron output. A processor is configured to receive signals from the oscilloscope and to send data to a central server.