addenda and errata\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767

Aurore: new software for neutron reflectivity data analysis. Corrigendum

aInstitut Laue–Langevin 71, avenue des Martyrs, 38000, Grenoble, France
*Correspondence e-mail: gerelli@ill.fr

(Received 9 February 2016; accepted 9 February 2016; online 16 February 2016)

An incorrect statement in the paper by Gerelli [J. Appl. Cryst. (2016), 49, 330–339] is corrected.

An incorrect statement in the paper by Gerelli (2016[Gerelli, Y. (2016). J. Appl. Cryst. 49, 330-339.]) is corrected. On p. 332, §2.1 it is stated that negative reflectivity values are discarded by default in the Aurore software because they are not physical. The statement is incorrect because, although reflectivity is a positive-definite quantity, for the case of background-subtracted data the reflectivity values can fluctuate around zero. This occurs especially if the reflectivity values are very small compared to the background. Ignoring systematically negative values could bias fits under these circumstances.

References

First citationGerelli, Y. (2016). J. Appl. Cryst. 49, 330–339.  Web of Science CrossRef CAS IUCr Journals Google Scholar

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Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
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