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Figure 1
Comparative brilliance reached by undulators and wigglers at the ESRF. By combining electron emittances of 4 and 0.04 nm, a current of 200 mA and two undulator segments, a record brilliance of 1 × 1020 photons s−1 (0.1% bandwidth)−1 mm−2 mrad−2 is reached around 5 keV.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
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