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FOURDEM: a program written as an aid to teaching the elements of Fourier synthesis and other crystallographic concepts (1992)

Welberry, T. R. ; Owen, K.

Copenhagen : International Union of Crystallography (IUCr)

Applied crystallography online 25 (1992), S. 443-447

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ISSN: 1600-5767

Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001

Topics: Geosciences , Physics

Notes: A program is described which demonstrates in two dimensions the principles of Fourier synthesis. There are two versions of the program, written in Absoft Fortran for use on a Macintosh II computer: a manual version in which the student can type in values of h, k, |F| and phase angle φ, and an automatic version in which a file of prepared input data can be used. The program can be used to demonstrate the meaning of Miller indices; the relationship between the (hkl) planes and the diffraction pattern; the meaning of phase; Fourier summation; Patterson functions; difference Fourier synthesis; heavy-atom methods of phase determination etc.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1107/S0021889891013389

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