SDD Materials : SiO2

Component Fraction by weight A Z (Z/A) Density
[g/cm3] 		Radiation Length
[cm] 		Radiation Length
[g/cm2]
Si 0.467435 28.0855 14. 0.49848 2.329 9.3688 21.82
O2 0.532565 15.9994 8. 0.50019 0.0013298 25740. 34.24
SiO2   21.6489 10.8046 0.49915 2.64(1) 10.2441 27.0444
 
SiO2 from PDG       0.49926 2.64 (1) 12.3 27.05
(1) The typical density of fused quartz is 2.20 g/cm3, the one of crystalline quartz is between 2.533 and 2.64 g/cm3.

Calculation performed using the method described here and imposing the density.
 
 
 
  Back to SDD materials page

Click here for comments and suggestions.