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McStas: Spherical_Backscattering_Analyser

[ Identification | Description | Input parameters | Links ]

The Spherical_Backscattering_Analyser Component

Identification

  • Site:
  • Author: Nikolaos Tsapatsaris (with help from Peter Willendrup, Ruep Lechner, Heloisa Bordallo)
  • Origin:
  • Date: 2015

Description

Spherical backscattering analyser with variable reflectivity, and mosaic gaussian response.

Based on earlier developments by Miguel A. Gonzalez 2000, Tilo Seydel 2007, Henrik Jacobsen 2011.

Example:
COMPONENT doppler = Spherical_Backscattering_Analyser(
xmin=0, xmax=0, ymin=0, ymax=0, mosaic=21.0, dspread=0.00035, Q=2.003886241, DM=0, radius=2.5, f_doppler=0, A_doppler=0, R0=1, debug=0)

Input parameters

Parameters in boldface are required; the others are optional.
NameUnitDescriptionDefault
xmin0
xmaxmMaximum absolute value of x =~ 0.5 * Width of the monochromator0
ymin0
ymaxmMaximum absolute value of y =~ 0.5 * Height of the monochromator0
mosaicarc minMosaicity, FWHM21.0
dspread1Relative d-sprea, FWHM0.00035
QAA-1Magnitude of scattering vector2.003886241
DMAAmonochromator d-spacing instead of Q = 2*pi/DM0
radiusmCurvature radius2.5
f_dopplerHzFrequency of doppler drive0
A_dopplermAmplitude of doppler drive0
R01Scalar, maximum reflectivity of neutrons1
debug1if debug > 0 print out some info about the calculations0
AT ( , , ) RELATIVE
ROTATED ( , , ) RELATIVE

Links

  • Source code for Spherical_Backscattering_Analyser.comp.

[ Identification | Description | Input parameters | Links ]

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


Last Modified: Wednesday, 03-Jan-2024 19:59:11 CET
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