Under normal circumstances, you can leave the spherical harmonics
orientation angles as zero. Their purpose is for pole figure analysis,
where you are doing multiple measurements, with your sample in different
orientations (or with detectors in various positions relative to your
sample).
Brian
Sergey Ushakov wrote:
>
> Dear All,
>
> Could somebody give me a hint on what should be omega, phi and chi
> angles ideally for Bragg-Bretano geometry (or tell why they should
> change)?
>
> Thanks in advance,
> Sergey
>
> ----------------------------------
> Sergey Ushakov
>
> post-doc
> University of California at Davis
> Thermochemistry Facility
> Dept. of Chem.Engr.&Mat.Sci.
> One Shields Ave., Davis, CA 95616
> ph 530/754-5863
> fax 530/752-9307
--
********************************************************************
Brian H. Toby, Ph.D. Leader, Crystallography Team
[EMAIL PROTECTED] NIST Center for Neutron Research, Stop 8562
voice: 301-975-4297 National Institute of Standards & Technology
FAX: 301-921-9847 Gaithersburg, MD 20899-8562
http://www.ncnr.nist.gov/xtal
********************************************************************
