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An accurate temperature controller for linear accelerators.

P B Morris, M G Schmid

    Medical Physics
    |November 1, 1984
    PubMed
    Summary
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    A new microprocessor-based temperature controller resolves issues with the Siemens Mevatron 77 linear accelerator's inadequate water cooling system. This upgrade ensures accurate temperature regulation and eliminates risks associated with water impurities and fluctuations.

    Area of Science:

    • Medical Physics
    • Engineering

    Background:

    • Linear accelerators require precise temperature control for optimal performance.
    • Existing water cooling systems, like that in the Siemens Mevatron 77, can be inadequate due to temperature regulation limitations, water impurities, and environmental variability.

    Purpose of the Study:

    • To address the inadequacy of the Siemens Mevatron 77's water cooling system.
    • To design and implement a microprocessor-based temperature controller for improved thermal management.

    Main Methods:

    • A microprocessor-based temperature controller was designed and constructed.
    • The new controller was integrated with the Siemens Mevatron 77 linear accelerator.

    Main Results:

    • The new controller accurately regulates machine temperature, even during extended beam-on times (>10 min).

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  • The risk of system failure due to utility water impurities was eliminated.
  • The controller effectively compensates for fluctuations in utility water temperature.

    • Conclusions:

    • The developed microprocessor-based temperature controller successfully overcomes the limitations of the original system.
    • This technological advancement enhances the reliability and operational stability of the Siemens Mevatron 77 linear accelerator.