Voigt2DMod

Function

$z=z0+A*\left[\frac{mu}{(1+((x-xc)/w1)^2)*(1+((y-yc)/w2)^2)}+(1-mu)*exp(-\frac{1}{2}*(\frac{x-xc}{w1})^2-\frac{1}{2}*(\frac{y-yc}{w2})^2)\right]$

The voigt surface with volume as parameter

Number: 7

Names: z0, A, xc, w1, yc, w2, mu

Meanings: z0 = z offset, A = height, xc = x center, w1 = x width, yc = y center, w2 = y width, mu = profile shape factor

Lower Bounds: $w1 > 0$ , $w2 > 0$ , $mu \ge 0$

Upper Bounds: $mu \le 1$

$Volume=A*w1*w2*(mu*\pi^2+(1-mu)*2*\pi)$

nlf_Voigt2DMod(x,y,z0,A,xc,w1,yc,w2,mu)

FITFUNC\VOIGT2DMod.FDF

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