McStas logo McStas - A neutron ray-trace simulation package ILL; PSI; ESS Niels Bohr Institute DTU Physics NEXMAP


About McStas
 Conditions of use
 Project funding

 Other Downloads (share)

Mailing list

Search web/mailinglist

 Wiki (GitHub)
 McStas manual


Report bugs (GitHub)

Code-repository (GitHub)

McStas: McStas_PowderN Instrument at SINE2020

[ Identification | Description | Input parameters | Output parameters | Links ]

The McStas_PowderN Instrument

Wrapper instrument for use of PowderN in SIMRES


  • Site: SINE2020
  • Author: Peter Willendrup
  • Origin: DTU
  • Date: December 2018
  • Version:(Unknown)


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
deliverable D8.8.

(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

Input parameters

Parameters in boldface are required; the others are optional.
Name Unit Description Default
reflections string Input file for reflections, laz and lau formats from McStas accepted "Al.lau"
geometry string Name of an Object File Format (OFF) or PLY file for complex geometry. ""
radius m Sample radius 0.01
xwidth m Sample width along x 0
yheight m Sample height along y 0.07
zdepth m Sample depth along z 0
thickness m Thickness of hollow sample 0
pack m Packing factor. 1
d_omega deg Horizontal (incoherent only) focusing limit [deg] 0
d_phi deg Vertical focusing limit [deg] 0
focus_flip 1 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. 0
tth_sign 1 Sign of the scattering angle. If 0, the sign is chosen randomly 0
barns 1 Flag to indicate if |F 2| from "reflections" is in barns or fm2 (barns = 1 for laz, barns = 0 for lau type files). 0
rot_x deg Sample rotation around x 0
rot_y deg Sample rotation around y 0
rot_z deg Sample rotation around z 0


[ Identification | Description | Input parameters | Output parameters | Links ]

Generated automatically by McDoc, Peter Willendrup <> / Wed Jan 12 15:13:32 2022

Last Modified: Wednesday, 12-Jan-2022 16:13:32 CET
Search website mailinglist archive GitHub repos