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Figure 1
Top-view scheme of the SOLEIL BM vacuum chamber and the IR extraction system that comprises a cylindrical and cone-shaped mirror (in green). The cylindrical mirror focuses horizontally the light emitted by the source (edge radiation and synchrotron radiation) and follows almost in the same way the electron beam trajectory allowing an extremely large horizontal extraction (150 mrad), whereas the cone-shaped mirror, facing towards the electron trajectory, focuses the vertical BM IR emission in an upwards reflecting geometry. This extraction layout delivers an almost aberration-free IR beam that is focused at the vicinity of the chamber. To avoid thermal deformations, the cylindrical mirror is slotted (see Fig. 2[link]) along its whole length, thus allowing X-rays to pass through.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 24| Part 2| March 2017| Pages 386-391
https://doi.org/10.1107/S1600577516020518
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