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Summary
This summary is machine-generated.

This study introduces a new method for calculating output beam parameters in multigap cavities for linear accelerators. It enables fast online energy adjustments by integrating beam moments with cavity fields.

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Area of Science:

  • Nuclear Physics
  • Accelerator Physics

Background:

  • Multigap cavities are crucial for linear accelerators, enabling particle velocities up to relativistic speeds.
  • Calculating output beam parameters in these structures is complex due to the absence of closed-form solutions.

Purpose of the Study:

  • To develop a novel method for predicting output beam parameters from multigap cavities.
  • To enable precise control over beam energy and energy spread in linear accelerators.

Main Methods:

  • Integration of the first and second moments of the beam distribution.
  • Utilizing axially symmetric, time-dependent cavity fields for calculations.
  • Beam-based calibration linking electric field scaling to radiofrequency (RF) amplitudes.

Main Results:

  • A fast online method for adjusting beam energy and energy spread was developed.
  • The method provides necessary cavity amplitude and phase for desired beam parameters.
  • Validation was performed using 23Na6+ beam energy measurements.

Conclusions:

  • The proposed integration method accurately models multigap cavity performance.
  • This approach facilitates rapid and precise beam energy control in accelerators.
  • The technique is experimentally validated, showing practical applicability.