Component Manual for the Neutron Ray-Tracing Package McStas, version 3.9

14.111  The Wavelength_Diffuser McStas Component

Wavelength-diffuser: Applies Gaussian smearing in wavelength.

Identification

Description

A component that applies a Gaussian smearing in wavelength to the incoming neutron. The smearing is defined by a normal-distributed uncertainty in wavelength from 0 to +/- dlambda.

Example: Wavelength_Diffuser(dlambda = 1)

Input parameters

Parameters in boldface are required; the others are optional.

Name

Unit

Description

Default

dlambda

Å

Sigma-value for Gaussian wavelength-smearing

1

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