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First multi-bend achromat lattice consideration.

Dieter Einfeld1, Mark Plesko2, Joachim Schaper3

  • 1MAX IV Laboratory, Lund University, PO Box 118, Lund SE-221 00, Sweden.

Journal of Synchrotron Radiation
|September 2, 2014
PubMed
Summary
This summary is machine-generated.

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The development of diffraction-limited storage rings (DLSRs) aims for unprecedented electron beam emittance and photon beam brilliance. Early designs explored modified multiple-bend achromat lattices for advanced synchrotron light sources.

Area of Science:

  • Particle Accelerators
  • Synchrotron Radiation Technology
  • Beam Physics

Background:

  • Three third-generation synchrotron light sources (ESRF, ALS, ELETTRA) were commissioned by the early 1990s.
  • Discussions on next-generation diffraction-limited storage rings (DLSRs) were active, targeting sub-nm-rad emittance and high brilliance.

Purpose of the Study:

  • To present an early design for a 3 GeV DLSR.
  • To explore lattice designs for achieving ultra-low emittance and high photon beam brilliance.

Main Methods:

  • A modified multiple-bend achromat (MBA) lattice design was developed.
  • The MBA lattice incorporated seven vertically focusing bend magnets with varying bending angles.
  • Beam dynamics and aperture behavior were analyzed for a 400m ring circumference.
Keywords:
DLSRMAX IVbeam opticslatticesynchrotron light source

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Main Results:

  • The proposed MBA lattice achieved a normalized emittance of 0.5 nm-rad.
  • The design aimed for photon beam brilliance exceeding 10^22 and coherent radiation potential.
  • Estimated beam lifetime exceeded 5 hours at 100 mA stored current.

Conclusions:

  • The early DLSR design demonstrated the feasibility of achieving ultra-low emittance using advanced MBA lattices.
  • This research laid groundwork for future high-brilliance synchrotron light source development.