crystal axis

crystal axis

[¦krist·əl ′ak·səs]
(crystallography)
A reference axis used for the vectoral properties of a crystal.
References in periodicals archive ?
the crystal is sectioned lengthwise and the composition and concentration in well-defined points, located at equal distances on the crystal axis, using ICP/MS- LASER Ablation technique are analyzed.
In monoclinic crystals some considerations have to be made: only one crystal axis is parallel to one of the principal susceptibilities ([k.
Thus, we arrive at a new concept of the UCN production with SD2, setting a single crystal converter of ortho-deuterium in the exit beam of a cold neutron guide from a pulsed source, and rotate the crystal axis synchronized to the time-of-flight spectrum of the incident cold neutrons.
Ancient stonecutters could thus cleave it perpendicular to the crystal axis to produce hexagonal prisms of any desired length.
their slow axis (larger refractive index) lies perpendicular to the long crystal axis.
In other words, the absorption for the exciting light is six times greater with its E-vector polarized parallel to the length of the crystal axis than across.
Thus, in the negatively birefringent GFP crystals, it is likely that the long axes of the barrel-shaped GFP molecules lie more or less across the length of the long crystal axis.
Evgraf Stepanovich Fedorov's (1853-1919) universal stage, revolving in all three dimensions, makes the parallel positioning of the optical axis and crystal axis possible, so that color changes in polarized light and interference figures may be noted.
Exact centering of the crystal axis is not necessary.
Figure 3a shows that spinning led to a rotation of this crystal axis.
The Desana imagine a crystal axis that connects the center of their hexagon to the Earth.
After tracing the axis of symmetry zones from 5 to 5mm areas were scored on crystal axis and the Martens hardness test was made in the points scored, with loading in the full cycle.