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Area of Science:

  • Particle Accelerators
  • High-Energy Physics
  • Nuclear Engineering

Background:

  • Conventional scaling fixed-field alternating-gradient (FFAG) accelerators face significant design challenges.
  • Achieving sufficient vertical focusing often requires extreme parameter values, limiting practical applications.

Purpose of the Study:

  • To propose a novel scaling type of FFAG accelerator that addresses the limitations of conventional designs.
  • To enable the development of FFAG accelerators for high-energy applications.

Main Methods:

  • The proposed FFAG accelerator combines reverse bending magnets of the radial sector type.
  • It incorporates a spiral edge angle characteristic of spiral sector types.
  • This combination ensures adequate vertical focusing without extreme parameter values.

Main Results:

  • The novel design successfully integrates features for enhanced vertical focusing.
  • It avoids the reliance on extreme magnetic field or geometric parameters found in traditional designs.
  • This facilitates the design of FFAGs for high-energy regimes.

Conclusions:

  • The new scaling FFAG concept offers a viable solution for high-energy accelerator design.
  • It is suitable for critical applications such as proton drivers for spallation neutron sources and accelerator-driven subcritical reactors.