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Variable-period undulators as synchrotron radiation sources.

G K Shenoy1, J W Lewellen, Deming Shu

  • 1Advanced Photon Source, Argonne National Laboratory, IL 60439, USA. gks@aps.anl.gov

Journal of Synchrotron Radiation
|April 26, 2003
PubMed
Summary
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A novel variable-period undulator concept offers tunable synchrotron radiation production for storage rings. This design allows significant period variation, enabling flexible X-ray applications with enhanced simplicity and no radiation damage.

Area of Science:

  • Physics
  • Materials Science
  • Engineering

Background:

  • Synchrotron radiation is a crucial tool in scientific research.
  • Existing undulator technologies have limitations in tunability and flexibility.
  • The need for advanced X-ray sources drives innovation in undulator design.

Purpose of the Study:

  • To introduce a new concept for variable-period undulators.
  • To enable tunable synchrotron radiation production from medium- and high-energy storage rings.
  • To present analyses of the magnetic and mechanical design.

Main Methods:

  • A staggered array of permeable poles within a magnetic solenoid.
  • Utilizing a longitudinal magnetic field for undulator operation.
  • Magnetic and mechanical design analyses were performed.

Related Experiment Videos

Main Results:

  • The concept allows for up to 100% variation in the undulator's magnetic period.
  • Tunability is achieved by adjusting period length and solenoid field.
  • The device can maintain constant flux or power, independent of X-ray energy.

Conclusions:

  • The proposed variable-period undulator offers inherent simplicity and flexibility.
  • This design is expected to significantly impact X-ray production and applications.
  • The absence of radiation damage is a key advantage of this new concept.