[ 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.

Name	Unit	Description	Default
xmin			0
xmax	m	Maximum absolute value of x =~ 0.5 * Width of the monochromator	0
ymin			0
ymax	m	Maximum absolute value of y =~ 0.5 * Height of the monochromator	0
mosaic	arc min	Mosaicity, FWHM	21.0
dspread	1	Relative d-sprea, FWHM	0.00035
Q	AA-1	Magnitude of scattering vector	2.003886241
DM	AA	monochromator d-spacing instead of Q = 2*pi/DM	0
radius	m	Curvature radius	2.5
f_doppler	Hz	Frequency of doppler drive	0
A_doppler	m	Amplitude of doppler drive	0
R0	1	Scalar, maximum reflectivity of neutrons	1
debug	1	if debug > 0 print out some info about the calculations	0

AT (	,	,		) RELATIVE		Generate
ROTATED (	,	,		) RELATIVE

Links

• Source code for Spherical_Backscattering_Analyser.comp.

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[ Identification | Description | Input parameters | Links ]

Generated on 2025-05-08 13:31:31

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Last Modified: Monday, 30-Jun-2025 11:05:11 CEST