International
Tables for
Crystallography
Volume C
Mathematical, physical and chemical tables
Edited by E. Prince

International Tables for Crystallography (2006). Vol. C, ch. 6.4, p. 612

## Section 6.4.13.3. The absorbing crystal

T. M. Sabinea

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#### 6.4.13.3. The absorbing crystal

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Only the Bragg case for thick crystals will be considered here. The asymptotic values of A, B, and C are , , and , respectively, so that For BCx small, the integrated intensity, , is given by For BCx large, It can be shown that the parameter g (which has no relation to the parameter g used to describe the mosaic-block distribution) used by Zachariasen (1945) in discussing this case is equal to −μ/2NCF. Hence, on his y scale, The value he obtained is IB = 8/3[1 − 2|g|], while Sabine & Blair (1992) found IB = 8/3[1 − 2.36|g|].

### References

Sabine, T. M. & Blair, D. G. (1992). The Ewald and Darwin limits obtained from the Hamilton–Darwin energy transfer equations. Acta Cryst. A48, 98–103.
Zachariasen, W. H. (1945). Theory of X-ray diffraction in crystals. New York: John Wiley, Dover.