Difference between revisions of "Absorption length"
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==See Also== | ==See Also== | ||
| − | * [http://henke.lbl.gov/optical_constants/atten2.html X-Ray Attenuation Length calculator] | + | * [http://henke.lbl.gov/optical_constants/atten2.html LBL X-Ray Attenuation Length calculator] |
| + | * [http://11bm.xray.aps.anl.gov/absorb/absorb.php APS absorption calculator | ||
* [http://en.wikipedia.org/wiki/Mass_attenuation_coefficient Wikipedia: Mass attenuation coefficient] | * [http://en.wikipedia.org/wiki/Mass_attenuation_coefficient Wikipedia: Mass attenuation coefficient] | ||
* [http://www.nist.gov/pml/data/xraycoef/ NIST tables of x-ray mass attenuation coefficient] | * [http://www.nist.gov/pml/data/xraycoef/ NIST tables of x-ray mass attenuation coefficient] | ||
Revision as of 14:34, 6 June 2014
The absorption length or attenuation length in x-ray scattering is the distance over which the x-ray beam is absorbed. By convention, the absorption length λ is defined as the distance into a material where the beam flux has dropped to 1/e of its incident flux.
Absorption
The absorption follows a simple Beer-Lambert law:
The attenuation coefficient (or absorption coefficient) is simply the inverse of the absorption length;
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