Difference between revisions of "Form Factor:Octahedron"

From GISAXS
Jump to: navigation, search
(Created page with "==Equations== For a regular octahedron of edge-length 2''R'' * Volume <math>V_{oct} = \frac{8 \sqrt{2} }{3} R^3</math> * Projected (''xy'') surface area <math>Sp = 4R^2</math>...")
 
 
(2 intermediate revisions by the same user not shown)
Line 1: Line 1:
 +
[[Image:Octahedron.png|200px|right]]
 
==Equations==
 
==Equations==
 
For a regular octahedron of edge-length 2''R''
 
For a regular octahedron of edge-length 2''R''
Line 7: Line 8:
  
 
==Pyramid==
 
==Pyramid==
The Octagon shaped can be considered to be formed from two square-based pyramids. Similarly the form factor can be computed from appropriate summation of two [[Form_Factor:Pyramid|pyramid form factors]].
+
The Octagon shaped can be considered to be formed from two square-based pyramids. Similarly the [[form factor]] can be computed from appropriate summation of two [[Form_Factor:Pyramid|pyramid form factors]].
 +
 
 +
==See Also==
 +
* [http://scripts.iucr.org/cgi-bin/paper?ks5428 The chord-length probability density of the regular octahedron] S. Ciccariello ''J. Appl. Cryst.'' 2014, 47 [http://dx.doi.org/10.1107/S1600576714011121 doi: 10.1107/S1600576714011121]

Latest revision as of 16:58, 29 June 2014

Octahedron.png

Equations

For a regular octahedron of edge-length 2R

  • Volume
  • Projected (xy) surface area
  • Surface area


Pyramid

The Octagon shaped can be considered to be formed from two square-based pyramids. Similarly the form factor can be computed from appropriate summation of two pyramid form factors.

See Also