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

The PSI_DMC Instrument

McStas model of the DMC powder diffractometer at PSI, CH.

Identification

Description

McStas model of the DMC powder diffractometer at PSI, CH.

Please note that this instrument file does not include the radial collimator of DMC. 
To generate the full 800-bin angle coverage at DMC, you should combine two simulations
using this instrumentfile, with SHIFT=0 and 0.1. This will displace the detector by half
a bin-width, which is a standard procedure at the DMC diffractometer


Input parameters

Parameters in boldface are required; the others are optional.
Name Unit Description Default
lambda AA Choice of wavelength, affects both monochromator and source component 2.5666
R 1 Reflectivity of non-curved guides 0.87
R_curve 1 Reflectivity of curved guides 0.87
filename str Choice of reflection list file, e.g. from McStas data dir "Na2Ca3Al2F14.laz"
D_PHI deg Focusing 'd_phi' for PowderN, see mcdoc page 6
SHIFT deg Rotation of detector, set to 0.1 to displace by half a bin 0
PACK 1 Powder packing factor 0.7
Dw 1 Powder Debye-Waller factor 0.8
BARNS 1 Flag to define if powder reflection file |F2| is in Barns or fm 1

Links


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

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Wed Sep 5 11:20:18 2018