Natural Science Forum / Physics / Research / August 2008

On Aug 21, 3:26=A0am, "kvlalit...@gmail.com" <kvlalit...@gmail.com>
wrote:

Roughly speaking the Fourier transform of the diffraction pattern
yields the electronic density, from which the positions of the nuclei
are elucidated. Crystals by their very nature have regularly arranged
nuclei so this is reflected in the highly symmetrical diffraction
pattern of these materials. Try Ashcroft & Mermin a classic in the
field.
Zak

kvlalitha1@gmail.com schrieb:

Measured is the absolute value of the Fourier transform of the signal.
The inverse problem (difficult since the phases are not available)
produces the desired structural information about a molecule.

C Giacovazzo (ed.)
Fundamentals of Crystallography
Oxford University Press 1992

is readable and fairly comprehensive.

Arnold Neumaier

In sci.physics.research message <fb1cf377-945a-41cc-a848-059df9a6a1d0@v1
3g2000pro.googlegroups.com>, Thu, 21 Aug 2008 02:26:36,
"kvlalitha1@gmail.com" <kvlalitha1@gmail.com> posted:

Try searching for "Henry Lipson" (one person) and "Henry Lipson and
Wooster" (three people).

And <http://en.wikipedia.org/wiki/X-ray_crystallography>.