MODEL

PeakLorentz

AUTHOR/MODIFICATION

John Barker 10 FEB 1999

Alan Munter 08 JULY 1999, converted to Java

APPROVED FOR DISTRIBUTION

DESCRIPTION

Model describes a Lorentzian shaped peak including a flat background.

Resolution smeared version is also provided.

VARIABLES

Input Variables (default values):

Parameter Variable Value
0Scale100.0
1Peak Position (Å-1)0.05
2Peak HWHM (Å-1)0.005
3Incoherent Background (cm-1)0.0

USAGE NOTES

The function calculated is:

Peak Lorentz Equation 1

with the peak having a height of I0 and a HWHM of Delta q.

REFERENCE

TEST DATASET

This example dataset is produced by calculating the PeakLorentz using 300 data points, qmin = 0.001 Å-1, qmax = 0.7 (Å-1) and the above default parameter values.

example dataset for Peak Lorentz