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Figure 3
Schematic of the optical setup inserted in the cryostat compartment. Mirrors 4 and 7 are flat. Mirrors 5 and 6 are paraboloids mounted on a set of stages. The modulated beam is focused on the sample holder which is in thermal contact with the cryostat through copper braids. Note that the cold finger of the cryostat is not rigidly fixed to the sample holder in order to avoid large thermal contractions.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 26| Part 6| November 2019| Pages 1945-1950
https://doi.org/10.1107/S1600577519010920
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