I(q) function calculator
Enter the shape of the model, its radius or semi-axes R1(x), R2(y), R3(z), range of the scattering vector q from qmin to qmax, number of intervals and scaling-factor (f) for the I(q)-scattering curve. If f >= 0, the scaling factor is V*V*f, if f < 0, then I(0) is scaled to abs(f). N (odd, 11-1001) is the numbers of intervals for the numerical integration of the spatial averaging (not relevant for sphere/circle/line). The values of the radius of gyration (Rg) and of the volume (V) are also given. The values of the scattering curve are listed in I(q) or log(I(q)) vs q, respectively, in arbitrary units and can be copied and pasted from the window into any text-file for further processing and graphical displaying.
Input
Scattering Curve
Shape
R1 (x-axis)
R2 (y-axis)
R3 (z-axis)
q
_{min}
q
_{max}
intervals
scale-f
N
I(q)
log I(q)
overlay
no overlay
Rg =
V =
sphere
rot.ellipsoid
ellipsoid
circ.cylinder
ellipt.cylinder
cuboid
circle
ellipse
rectangle
line
Author:
M.Kriechbaum
, TU-Graz (2012), e-mail:
manfred.kriechbaum@tugraz.at