Abstract
THE quantity 2Φ defined by Yoneda for his own calculations differs from my quantity 2Φ, the definition of which he quotes earlier, by 180°. Consequently his result 132° ± 3° becomes, in my notation, 48° ± 3°, which is not very different from my 52°. Whether it is superior is very debatable. Yoneda's value increases the discrepancy from the observed spike intensities (relative to that at first order) in the second, third, and fourth orders, without gaining any satisfactory agreement at fifth order, for which he still obtains a stronger spike than at third order, instead of an absent one. I supposed another factor to be present, giving a general falling off of intensity at higher order. Yoneda's calculation does not dispose of the evidence for such a factor, but if such a factor were present, his least squares analysis is less appropriate than my method of calculation, the essential point of which is to give great weight to the location of a minimum (a zero, according to the theory) near the third order. The most remarkable result is the smallness of the change which his method of calculation brings about.
Similar content being viewed by others
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
FRANK, F. X-ray Diffraction Spikes of Diamond. Nature 191, 1188 (1961). https://doi.org/10.1038/1911188a0
Issue Date:
DOI: https://doi.org/10.1038/1911188a0
This article is cited by
-
Lamellar formations in the structure of natural diamonds
Journal of Structural Chemistry (1969)
-
Origin of the extrareflections of the “spine” type in laue photograph of natural diamonds
Journal of Structural Chemistry (1966)
-
Diamonds Containing Controllable Impurity Concentrations
Nature (1962)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.