X-Ray Attenuation Length vs Angle

• Material: (enter chemical formula).
• Density: gm/cm^3 (enter negative value to use tabulated values.)
• Photon Energy: eV.
  (NOTE: Energies must be in the range 30 eV < E < 30,000 eV).
• Scan Grazing Angle from deg to deg in steps (< 500).
  

To reset to default values, press this button: .

Attenuation Length

The depth into the material measured along the surface normal where the intensity of x-rays falls to 1/e of its value at the surface.

Material

The chemical formula is required here. Note that this is case sensitive (e.g. CO for Carbon Monoxide vs Co for Cobalt).

Density

If a negative value is entered, the chemical formula is checked against a list of some common materials. If no match is found then the density of the first element is used.

Grazing Angle

In keeping with the standard notation for the x-ray region the incidence angle is measured relative to the surface (NOT the surface normal).

Output

A GIF plot may be generated for quick viewing of the results. If you need anything fancier, the results are provided as a text file for use with your favorite plotting package. An encapsulated postscript file is also offered for printing out the results.