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Figure 1
Illustration of accessible reciprocal space through a diamond anvil cell with a conical opening angle α. The colored toroidal volume VDAC is given by VDAC = 4π/λ3[sin α(α — sin α cos α)] (Merrill & Bassett, 1974BB10; Miletich et al., 2000BB11). Tchoń & Makal (2021BB12) quantify systematically how a sample crystal of given symmetry needs to be oriented relative to the DAC in order to maximize the number of independent reflections in the toroidal volume. Figure modified after Miletich et al. (2000BB11).

IUCrJ
Volume 8| Part 6| November 2021| Pages 855-856
ISSN: 2052-2525
https://doi.org/10.1107/S2052252521011106