documentation:post_modifications

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+ | One data point for one film can be characterized by the four numbers qz, energy, intensity and type of polarization. | ||

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+ | Dependent on the type of measurement different modifications could be helpful to analyze the data. The program is capable to do this modifications automatically. | ||

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+ | == Multiply by *qz^4 == | ||

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+ | The two main effects in reflectometry are the reflection and transmission at the interfaces (fresnel equations) and interference. | ||

+ | If you neglect the roughness at the interface the fresnel part is proportional to 1 / qz^4. | ||

+ | Therefore by multiplying the result by qz^4 one can emerge the interference part of the result. | ||

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+ | (TODO: Fit linear if this option is enabled) | ||

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+ | == Divide by /cos(2*theta)^2 if pi-light == | ||

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+ | The Fresnel formulas between sigma and pi light differ by a factor /cos(2*theta)^2. If you want to compare the dichroism between sigma- and pi-light you can enable this option. | ||

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+ | == Fourier transformation == | ||

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+ | Fourier transforms the spectra to determine the layer thicknesses. | ||

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+ | == Averaging == | ||

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+ | TODO \\ | ||

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documentation/post_modifications.txt ยท Last modified: 2013/04/03 22:21 (external edit)