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Figure 3
Analyzer crystal and detector positions for θ = 85° and θ = 65° (RP = 500 mm, az,off = 0, ay,off = 120 mm, α = 0°). Each analyzer defines its own Rowland circle. Consequently, there are five meridional planes. Note that since only the central crystal remains at a fixed vertical position, only the centre cradle is rotated to the Bragg angle θB. For the outer crystals, the Bragg angle is a combination of cradle rotation and vertical displacement.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 28| Part 1| January 2021| Pages 362-371
https://doi.org/10.1107/S1600577520015416
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