About the coherent fraction of synchrotron emission
Manuel Sanchez del Rio
TL;DR
This paper clarifies the concept of coherent fraction in synchrotron radiation, compares various definitions, and proposes a quick approximation method based on lattice parameters for practical calculations.
Contribution
It provides a clear definition, compares existing formulations, and introduces an efficient approximation method for calculating the coherent fraction.
Findings
Different formulations of coherent fraction are compared.
An approximate calculation method is proposed.
The method is validated using ESRF lattice data.
Abstract
Coherent fraction is a concept widely used in the synchrotron radiation community. Here I discuss the meaning of coherent fraction, an accurate way to define it, and the different formulations found in literature to calculate it. After several comparisons using values from the present and future ESRF lattices, an approximated way to quickly compute it is proposed.
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Taxonomy
TopicsParticle Accelerators and Free-Electron Lasers · Advanced X-ray Imaging Techniques · Crystallography and Radiation Phenomena