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

The NCrystal_filter_example Instrument

Example instrument for NCrystal_filter use

Identification

• Site: NCrystal
• Author: Thomas Kittelmann
• Origin: ESS
• Date: 2026

Description

A beam with wavelengths from 0.5 to 9.5 Aa passes through a filter
(NCrystal_filter), with wavelength monitors before and after it. With the
default cooled Be filter, the transmission is low below the Bragg cut-off at
3.96 Aa, and high above it.

Examples

(Test cases in bold)

• Test: thickness=0.1 Detector: mon_after_I=0.000105

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
cfg	str	NCrystal cfg-string of the filter material.	"stdlib::Be_sg194.ncmat;temp=80K"
thickness	m	Thickness of the filter.	0.1

Links

• Source code for NCrystal_filter_example.instr.
• NCrystal_filter

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

Generated for mcstas 3.10.2

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Last Modified: Tue Nov 3 18:52:15 2026