Diffraction standard

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.^[1] A range of materials may be used including quartz or silicon crystals.^[2] There are also reports of crystals of silver behenate or silver stearate having been used for this purpose.^[3][4]

References

1. Swanson, H. E.; McMurdie, H. F.; Morris, M. C.; Evans, E. H. (June 1968). "Standard X-ray Diffraction Powder Patterns: Section 6. Data for 60 Substances". University of North Texas Libraries.
2. Cline, James P. (September 6, 2016). "Powder Diffraction SRMs". National Institute of Standards and Technology.
3. Blanton, T. N.; Huang, T. C.; Toraya, H.; Hubbard, C. R.; Robie, S. B.; Louër, D.; Göbel, H. E.; Will, G.; Gilles, R.; Raftery, T. (June 1995). "JCPDS—International Centre for Diffraction Data round robin study of silver behenate. A possible low-angle X-ray diffraction calibration standard". Powder Diffraction. 10 (2): 91–95. doi:10.1017/S0885715600014421. ISSN 0885-7156.
4. Finnefrock, A. C. (Jan 25, 2000). "SAXS Calibrants".

External links

• http://www.gwyndafevans.co.uk/thesis-html/node85.html ^{[dead link‍]}
• http://www.ccp14.ac.uk/solution/calibration/index.html
• http://bigbro.biophys.cornell.edu/documents/SAX_Calibrants/saxs_sphere.html