An X-ray diffractometer for accurate structural invariant phase determination

Morelhão, S.L.

doi:10.1107/S0909049503003789

Figure 8
Experimental (open circles) and simulated (solid lines) ϕ-scans of the $[33\bar2]$ and $[\bar132]$ 3-BD in KDP (KH₂PO₄, potassium dihydrogen phosphate) crystal as a function of the polarization angle χ. Primary reflection: 260. Simulated curves were generated using equation (2)

(Appendix A

) for the `out → in' position. The best-fit values of δ_T and ξ, for R = 0.6515 and b′ = 0.84 [R₃₃₂ = 0.485 and R₁₃₂ = 0.515, see equation (3)

], are shown on the left-hand side of each scan. The number on the other side stands for the maximum intensity normalized by the base line, 1. Wavelength: 1.65382 Å (2θ_A ≃ 90°).

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 10| Part 3| April 2003| Pages 236-241

doi:10.1107/S0909049503003789

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