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McStas: SANS_DebyeS

[ Identification | Description | Input parameters | Links ]

The SANS_DebyeS Component

Identification

  • Site:
  • Author: Henrich Frielinghaus
  • Origin: FZ-Juelich/FRJ-2/IFF/KWS-2
  • Date: Sept 2004

Description

Debye-Scherrer Ring: Model for highly ordered diblock copolymer.
This example is highly simple.
Multiple scattering neglected, but could be incorporated.
Sample that only produces a DebyeSherrer ring.
Advantages:  Transmitted beam is simulated.
Intensities still in flux units.
Minor point: Absolute scattering probability given by transmission.

Sample components leave the units of flux for the probability
of the individual paths. That is more consitent than the
Sans_spheres routine. Furthermore one can simulate the
transmitted beam. This allows to determine the needed size of
the beam stop. Only absorption has not been included yet to
these sample-components. But thats really nothing.

Example: SANS_DebyeS(transm=0.5, qDS=0.008, xwidth=0.01, yheight=0.01, zdepth=0.001)

Input parameters

Parameters in boldface are required; the others are optional.
NameUnitDescriptionDefault
transm1coherent transmission of sample for the optical path "zdepth"0.5
qDSAA-1Scattering vector of Debye-Sherrer ring0.008
xwidthmhoriz. dimension of sample, as a width (m)0.01
yheightmvert.. dimension of sample, as a height (m)0.01
zdepthmthickness of sample (m)0.001
AT ( , , ) RELATIVE
ROTATED ( , , ) RELATIVE

Links

  • Source code for SANS_DebyeS.comp.
  • Sans_spheres component

[ Identification | Description | Input parameters | Links ]

Generated on 2024-01-03 11:47:43


Last Modified: Tuesday, 16-Apr-2024 20:05:21 CEST
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