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December 7, 2010
CRYSTALLOGRAPHY;
Data on crystallography published by researchers at Yerevan State University
"A new way of implementing the diffraction of a highly divergent
characteristic X-ray beam has been developed. This method is based on
the formation of a diffraction image by the X rays exiting particular
(active) points on the crystal surface which lie on hyperbolas,"
scientists in Yerevan, Armenia report.
"There is a correspondence between the points on the crystal surface
and the points in the diffraction image. Local distortions of the
crystal structure lead to local deviations of the diffraction lines
from proper hyperbolas," wrote K.T. Avetyan and colleagues, Yerevan
State University.
The researchers concluded: "This method makes it possible to reveal
the block structure of crystals, separate blocks, and estimate the
degree of misorientation."
Avetyan and colleagues published their study in Crystallography
Reports (New aspect of diffraction of a highly divergent
characteristic X-ray beam. Crystallography Reports,
2010;55(5):737-742).
For more information, contact K.T. Avetyan, Yerevan State University,
Yerevan 0025, Armenia.
Publisher contact information for the journal Crystallography Reports
is: Maik Nauka, Interperiodica, Springer, 233 Spring St., New York, NY
10013-1578, USA.
From: A. Papazian
December 7, 2010
CRYSTALLOGRAPHY;
Data on crystallography published by researchers at Yerevan State University
"A new way of implementing the diffraction of a highly divergent
characteristic X-ray beam has been developed. This method is based on
the formation of a diffraction image by the X rays exiting particular
(active) points on the crystal surface which lie on hyperbolas,"
scientists in Yerevan, Armenia report.
"There is a correspondence between the points on the crystal surface
and the points in the diffraction image. Local distortions of the
crystal structure lead to local deviations of the diffraction lines
from proper hyperbolas," wrote K.T. Avetyan and colleagues, Yerevan
State University.
The researchers concluded: "This method makes it possible to reveal
the block structure of crystals, separate blocks, and estimate the
degree of misorientation."
Avetyan and colleagues published their study in Crystallography
Reports (New aspect of diffraction of a highly divergent
characteristic X-ray beam. Crystallography Reports,
2010;55(5):737-742).
For more information, contact K.T. Avetyan, Yerevan State University,
Yerevan 0025, Armenia.
Publisher contact information for the journal Crystallography Reports
is: Maik Nauka, Interperiodica, Springer, 233 Spring St., New York, NY
10013-1578, USA.
From: A. Papazian