|This article does not cite any sources. (November 2010) (Learn how and when to remove this template message)|
In crystallography, a diffraction standard, or calibration crystal, is a crystal used to calibrate an X-ray spectrometer to an absolute X-ray energy scale. Quartz or silicon crystals are typically used. There are also reports of crystals of silver behenate or silver stearate having been used for this purpose.
|This science article is a stub. You can help Wikipedia by expanding it.|