ISSN:
1600-5724
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
It is shown to what extent it is possible to calculate the number of beams which interfere in the case of systematic interactions of a reciprocal spot h. In the case in which it is supposed that the interference between these various beams (belonging to the reciprocal line which produces the systematic interaction) and the diffracted beam h can be treated in the two-beam approximation and cannot occur if the relative proportion of the wave amplitudes is below a definite value, this criterion gives a simple method of handling a number of diffracted beams whatever the angle of incidence of the electron beam may be. Results of calculations are given for different metals and different conditions of excitation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0567739468001117
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