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A three-dimensional magnetostatics computer code for insertion devices.

O Chubar1, P Elleaume, J Chavanne

  • 1ESRF, BP 220, F-38043 Grenoble CEDEX, France.

Journal of Synchrotron Radiation
|July 21, 2004
PubMed
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RADIA is a novel 3D magnetostatics code for designing undulators and wigglers. It offers superior speed and accuracy compared to existing finite-element methods for magnetic field calculations.

Area of Science:

  • Computational physics
  • Electromagnetism
  • Accelerator physics

Background:

  • Designing undulators and wigglers requires accurate magnetostatic field calculations.
  • Existing computational methods, like finite-element packages, can be computationally intensive and less accurate for certain estimations.

Purpose of the Study:

  • To introduce RADIA, a new 3D magnetostatics computer code.
  • To optimize the design process for undulators and wigglers using advanced computational techniques.
  • To provide a more efficient and accurate tool for magnetostatic field computations.

Main Methods:

  • Utilizes a boundary integral approach to solve magnetostatic problems.
  • Handles magnetized volumes (polyhedrons with non-linear or anisotropic properties) and current-carrying elements (blocks).

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  • Employs the mirroring technique for boundary conditions and details analytical formulae for field computation.

    • Main Results:

    • RADIA demonstrates superior performance over current finite-element packages in terms of CPU time.
    • Achieves higher accuracy in field integral estimations.
    • Successfully applied to the design case of a wedge-pole undulator.

    Conclusions:

    • RADIA is an efficient and accurate 3D magnetostatics code for accelerator component design.
    • The boundary integral approach offers advantages over traditional finite-element methods for these specific problems.
    • The code's performance and accuracy make it a valuable tool for researchers and engineers in the field.