This instrument provides an MCPL-based interface for the use of PowderN in the SIMRES package.
The instrument has been developed in the context of WP8 in the SINE2020 project and is part of
(EU Horizon 2020 research and innovation programme under grant agreement No 654000).
The default material is Al as a cylinder of radius 0.01 m x height 0.07 m
Example: McStas_PowderN reflections=Al.lau radius=0.01 yheight=0.07
Parameters in boldface are required;
the others are optional.
Input file for reflections, laz and lau formats from McStas accepted
Name of an Object File Format (OFF) or PLY file for complex geometry.
Sample width along x
Sample height along y
Sample depth along z
Thickness of hollow sample
Horizontal (incoherent only) focusing limit [deg]
Vertical focusing limit [deg]
Controls the sense of d_phi. If 0 d_phi is measured against the xz-plane. If nonzero, d_phi is measured against zy-plane.
Sign of the scattering angle. If 0, the sign is chosen randomly
Flag to indicate if |F 2| from "reflections" is in barns or fm2 (barns = 1 for laz, barns = 0 for lau type files).