| | | calculates the extinction distance of the reflection for at the stored wavelength. |
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| | | calculates the extinction distance of the reflection for at wavelength . |
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| [crystal,λ,{{,,},{,,},…}] | | calculates the extinction distance of the reflections for at wavelength . |
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| | | calculates the extinction distance of the reflection for at wavelength , using the factors and of the experimental setup. |
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