McXtrace - An X-ray ray-trace simulation package

[ Identification | Description | Input parameters | Links ]

The Rayleigh_xrl_process Component

Component that implements a Rayleigh scattering process

Identification

• Author: Mads Bertelsen and Erik B Knudsen
• Origin: ESS DMSC & DTU Physics & United Neux
• Date: 20.08.15

Description

This Union_process is based on the Incoherent.comp component originally written
by Kim Lefmann and Kristian Nielsen

Part of the Union components, a set of components that work together and thus
separates geometry and physics within McXtrace.
The use of this component requires other components to be used.

1) One specifies a number of processes using process components like this one
2) These are gathered into material definitions using Union_make_material
3) Geometries are placed using Union_box / Union_cylinder, assigned a material
4) A Union_master component placed after all of the above

Only in step 4 will any simulation happen, and per default all geometries
defined before the master, but after the previous will be simulated here.

There is a dedicated manual available for the Union_components

Algorithm:
Described elsewhere

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
density	g/cm^3	Nominal density of material.	0
atomno	1	Atomic number.	14
element	str	The element (symbol) of the material. Overrides atomno.	""
init	string	Deprecated and unused. Accepted so that instruments written for McStas/McXtrace 3.8.7 and earlier, which name the Union_init component here, still compile. OUTPUT PARAMETERS:	""

AT (	,	,		) RELATIVE		Generate to clipboard
ROTATED (	,	,		) RELATIVE

Links

• Source code for Rayleigh_xrl_process.comp.
• The test/example instrument Test_Phonon.instr.

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

Generated on mcxtrace 3.10.2

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Last Modified: Monday, 02-Nov-2026 21:43:07 CET