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Lorentzian Function


The Lorenztian function is a mathematical function, characterized by trumpet-like peaks, with very wide tails. A typical Lorentzian peak is illustrated in the graph below:-

In powder diffraction we usually plot the diffracted intensity, I, along the y-axis, and the intensity distribution is given by:-

where:-

The Lorentzian function generally provides a good description of the shape of neutron diffraction peaks.


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