Thus, preferred orientation cannot completely avoidable, must be reduced as much as possible. But the crystal world is intrinsically vectorial, not scalar, and anisotropy (structural and morphological) in the rule, not the exception. Elimination of preferred orientation effects (one of the most common experimental problems) would not exist if the crystals were morphologically spherical. Any deviations from homogeneity make the reproducibility of the measurement rather difficult. One of the basic assumptions of meaningful XRD is the homogeneous spatial and angular, distribution of the crystallite orientations in the different directions. It is important to emphasize that the quality of the collected data cannot be superior to the quality of the sample and to the quality of its preparation and deposition.
RIGAKU ZERO BACKGROUND SAMPLE HOLDER GENERATOR
Specifications and Settings Use for the Usual Measurements X-ray generator The instrument’s goniometer uses the following geometry for the collection of data. Proper instrumental parameters to get good S/N ratio of your sample can be set by a quick-run. The S/N ratio of the measurement depends on many factors including but not limited to the quality of the sample, the composition of the sample, scan speed, step size and so on. The time taken for one measurement depends of the basic settings such as scan range, scan speed and step size used for the measurements. However, one sample can be mounted in for the measurements at a time since we do not currently have the auto sample changer. Powder/granular samples, membranes or thin films coated on other substrates can be placed on the well.
![rigaku zero background sample holder rigaku zero background sample holder](https://i.ebayimg.com/images/g/LqcAAOSwqNVct8Fw/s-l300.jpg)