Sample for Small Angle Neutron Scattering - hard spheres in thin solution, mono disperse.
Author: P. Willendrup, K. Lefmann, L. Arleth
KL, 7 June 2005
Sample for use in a SANS instrument, models hard, mono disperse spheres in thin solution.
The shape of the sample may be a filled box with dimensions
xwidth, yheight, zdepth, a cylinder with dimensions radius and yheight,
a filled sphere with radius.
Example: Sans_spheres(R = 100, Phi = 1e-3, Delta_rho = 0.6, sigma_abs = 50, xwidth=0.01, yheight=0.01, zdepth=0.005)
Parameters in boldface are required;
the others are optional.
Radius of scattering hard spheres
Particle volume fraction
Excess scattering length density
Absorption cross section density at 2200 m/s
horiz. dimension of sample, as a width
vert . dimension of sample, as a height for cylinder/box
depth of sample
Outer radius of sample in (x,z) plane for cylinder/sphere
position of target to focus at
Relative index of component to focus at, e.g. next is +1