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Figure 1
(a) Schematic of the HIPPO instrument at LANSCE. Note the location of the flange of the sample chamber (top) and the vent (right side in the 60° detector ring) where the neutron detectors are missing. (b) Equal area projection of HIPPO detectors onto a generic (hkl independent) pole figure. Differently from constant-wavelength texture measurements, the pole figure coverage in a neutron TOF experiment is the same for all (hkl). Note the resulting large gap in the detector coverage from the HIPPO sample chamber flange and the missing detector panel (red circle) due to the vacuum vent which would mirror panel No. 43 with respect to a vertical mirror plane. The correlation of the pole figure coverage plot at ωs = 0°, χs = 0°, φs = 0 with the instrument detector layout is shown in more detail in Fig. 4[link].

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 56| Part 6| December 2023| Pages 1764-1775
https://doi.org/10.1107/S1600576723009275
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