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Diffraction line profiles from polydisperse crystalline systems. Corrigenda
aDepartment of Civil, Environmental and Mechanical Engineering, University of Trento, 38123 via Mesiano 77, Trento, Italy
*Correspondence e-mail: Paolo.Scardi@unitn.it
Equation (16) and some entries in Table 1 in the article by Scardi & Leoni [(2001), Acta Cryst. A57, 604–613] are corrected.
Keywords: line profile analysis; LPA; whole powder pattern modelling; WPPM; crystalline domain size; corrigenda.
The variable σ in equation (16) of Scardi & Leoni (2001![[Scardi, P. & Leoni, M. (2001). Acta Cryst. A57, 604-613.]](../../../../../../logos/arrows/a_arr.gif "Scardi, P. & Leoni, M. (2001). Acta Cryst. A57, 604-613.")
) is missing a superscript to indicate that this term should be squared. The correct expression is
![[M_{l,n} =\exp[n\mu +(n^2/2)\sigma^2]. \eqno(16)]](teximages/me6128fd1.svg)
As mentioned previously in Leonardi et al. (2012), there are also some errors in the common volume function (CVF) of the octahedron in Table 1 of Scardi & Leoni (2001). The same errors are found in Stokes & Wilson (1942). The coefficients for the case A ≤ B + C should read
![[\eqalign{H_0 = & \, 1, \cr H_1 = & \, -3(A + B + C)/8^{1/2}, \cr H_2 = & \, -3 \left [ A^2 + (B - C)^2 - 2A (B + C) \right ] /4, \cr H_3 = & \, \left ( A^3 +B^3 +C^3 -3ABC \right ) / 2^{1/2}, \cr K^c (hkl) = & \, (A + B + C) / 2^{1/2}. }]](teximages/me6128fd2.svg)
References
Leonardi, A., Leoni, M., Siboni, S. & Scardi, P. (2012). J. Appl. Cryst. 45, 1162–1172. Web of Science CrossRef CAS IUCr Journals Google Scholar
Scardi, P. & Leoni, M. (2001). Acta Cryst. A57, 604–613. Web of Science CrossRef CAS IUCr Journals Google Scholar
Stokes, A. R. & Wilson, A. J. C. (1942). Proc. Cambridge Philos. Soc. 38, 313–322. CrossRef CAS Google Scholar
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