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Transverse gradient in Apple-type undulators.

M Calvi1, C Camenzuli2, E Prat1

  • 1Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland.

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PubMed
Summary
This summary is machine-generated.

Apple-type undulators, crucial for variable polarized soft X-ray light, can also generate transverse gradients. This study introduces a framework to evaluate these gradients for advanced light source applications.

Keywords:
Apple-type undulatorsoft X-ray linetransverse gradient undulator

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Area of Science:

  • Physics
  • Optics
  • Accelerator Physics

Background:

  • Apple-type undulators are leading devices for generating variable polarized light in the soft X-ray spectrum.
  • New light sources aim to enhance performance using transverse gradient undulators.

Purpose of the Study:

  • To demonstrate that Apple undulators can produce variable transverse gradients in addition to polarized light.
  • To develop a theoretical framework for evaluating the K-value and its transverse gradient in Apple undulators.

Main Methods:

  • Development of a general theoretical framework.
  • Calculation of K-value and transverse gradient formulas for various Apple undulator types and operational modes.
  • Critical discussion of the derived formulas.

Main Results:

  • Apple undulators can generate variable transverse gradients under specific conditions.
  • Formulas for K-value and transverse gradient are derived for regular operational modes.
  • Analysis includes Delta-type and Apple X undulator designs.

Conclusions:

  • Apple undulators offer enhanced flexibility beyond polarized light generation.
  • The theoretical framework provides a tool for optimizing undulator designs for next-generation light sources.
  • Findings are relevant for synchrotron and free-electron laser facilities seeking advanced light manipulation capabilities.