McXtrace - An X-ray ray-trace simulation package

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

The Test_Mono Instrument

Compares intensities of Monochromator components.

Identification

• Site: Tests_optics
• Author: A. Vickery, A. Prodi and E. Knudsen
• Origin: NBI,Risø DTU Physics
• Date: July 2011.

Description

Very simple setup to compare intensities diffracted by Monochromators.
It shows that implementations are equivalent.

The input parameter 'Mono' chooses which model to use:
0: Obsolete Perfect_crystal
1: Bragg_crystal - validated component
2: Bragg_crystal_bent - bent version of the above
3: Bragg_crystal_BC - variant of the above based on Mendenhall et. al., J. Appl. Cryst 2019
4: Bragg_crystal_bent_BC - variant of the above based on Mendenhall et. al., J. Appl. Cryst 2019
5: Bragg_crystal_simple - a simple mono with a static (flat) Darwin width.

Examples

(Test cases in bold)

• Test: Test_Mono.instr Mono=1 Detector: emon_I=5.39036e-17
• Test: Test_Mono.instr Mono=2 Detector: emon_I=5.41029e-17
• Test: Test_Mono.instr Mono=3 Detector: emon_I=5.33687e-17
• Test: Test_Mono.instr Mono=4 Detector: emon_I=5.33687e-17
• Test: Test_Mono.instr Mono=5 Detector: emon_I=5.33687e-17

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
Mono		Which monochromator model to use. See description above.	1
lambda	AA	Source wavelength.	1.0
L1	m	Distance from source to monochromator.	10.0
OMM	deg	Rotation angle of monochromator, i.e. angle of incidence.	14.2208
TTM	deg	Scattering angle at which to put the detector.	28.4416
BEND	m	Curvature radius of the monochromator crystal lattice. Only relevant for Mono==2.	1
monsiz	m	Size (h and w) of PSD measuring diffracted beam.	5e-5

Links

• Source code for Test_Mono.instr.

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

Generated for mcxtrace 3.8.4

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Last Modified: Friday, 11-Sep-2026 15:00:07 CEST