Bending Magnet Synchrotron Radiation Imaging with Large Orbital Collection Angles

Area of Science:

• Physics
• Optics
• Materials Science

Background:

• Storage ring-based light sources produce synchrotron radiation (SR) with unique brightness and stability.
• SR is crucial for various scientific applications, necessitating precise understanding of its properties.

Purpose of the Study:

• To conduct a detailed study of bending magnet SR intensity distribution in a focusing optical system.
• To compare experimental measurements with theoretical predictions for low emittance storage rings.
• To explore the potential for high-resolution emittance diagnostics using visible or near-visible SR.

Main Methods:

• Experimental measurements of SR intensity distribution at the MAX-IV low emittance storage ring.
• Comparison of experimental data with theoretical predictions.
• Derivation of a closed analytical expression for SR intensity distribution from a zero-emittance beam.

Main Results:

• Experimental measurements of SR intensity distribution showed excellent agreement with theoretical predictions.
• A closed analytical expression for the intensity distribution from a zero-emittance beam was derived.
• The study demonstrated the convergence of classical electrodynamics with Landau and Lifshitz predictions.

Conclusions:

• The study validates theoretical models for SR intensity distribution in focusing systems.
• High-resolution emittance diagnostics using visible or near-visible SR are feasible for future low-emittance storage rings.
• The derived analytical expression provides a fundamental link between SR emission, focusing, and theoretical radiation predictions.