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Figure 8
Numerical comparisons of the throughput of the three spectrometer designs, with the elliptical cylinder in blue, the toroid in orange and the sagittal collimating diaboloid in green. In the elliptical cylinder and sagittal collimating cases, the (a) V and (b) H acceptances are determined by the acceptance of the optics, while in the toroid case they are limited by the degradation to the energy resolution over the full energy range. The resulting figure of merit is shown in panel (c). Note that the figure of merit is in quantitative units of mrad2.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 33| Part 4| July 2026| Pages 1005-1015
https://doi.org/10.1107/S1600577526005564
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