STUDIES FROM YEREVAN STATE UNIVERSITY FURTHER UNDERSTANDING OF CRYSTALLOGRAPHY

Journal of Technology & Science
March 15, 2009

"A method for implementing the diffraction of a widely divergent
characteristic X-ray beam from a standard X-ray tube with a linear
focal spot was improved. X rays, passing through a diaphragm 30 pm
in diameter, diffract from a crystal adjacent to the diaphragm,"
scientists in Yerevan, Armenia report.

"The crystal, together with a photographic plate, rotates around the
axis perpendicular to the plate. It is shown that the diffraction image
is a set of hyperbolas in this case. The equations of the hyperbolas
are obtained and investigated," wrote K.T. Avetyan and colleagues,
Yerevan State University.

The researchers concluded: "A method for interpreting the diffraction
images in the case of small crystal asymmetry is proposed."

Avetyan and colleagues published their study in Crystallography Reports
(A Method for Implementing the Diffraction of a Widely Divergent
X-Ray Beam. Crystallography Reports, 2008;53(6):937-941).

For additional information, contact K.T. Avetyan, Yerevan State
University, Ul A Manukyana 1, Yerevan 375025, Armenia.

The publisher’s contact information for the journal Crystallography
Reports is: Maik Nauka, Interperiodica, Springer, 233 Spring St.,
New York, NY 10013-1578, USA.

From: Emil Lazarian | Ararat NewsPress