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

The Unittest_SANS_benchmark2 Instrument

Test instrument for the SANS_benchmark2 component. No guide / velocity selector.

Identification

• Site: Tests_samples
• Author: Peter Willendrup
• Origin: ESS
• Date: April 2023

Description

Very simple test instrument for the SANS_benchmark2 component from H. Frielinghaus.

Examples

(Test cases in bold)

• Test: modnum=1 Detector: detectorSANS_I=0.0123201
• Test: modnum=2 Detector: detectorSANS_I=0.00635726
• Test: modnum=3 Detector: detectorSANS_I=18.8412
• Test: modnum=4 Detector: detectorSANS_I=0.00600315
• Test: modnum=5 Detector: detectorSANS_I=0.0310337
• Test: modnum=6 Detector: detectorSANS_I=0.660282
• Test: modnum=7 Detector: detectorSANS_I=0.776435
• Test: modnum=8 Detector: detectorSANS_I=3.89201
• Test: modnum=9 Detector: detectorSANS_I=0.0427871
• Test: modnum=10 Detector: detectorSANS_I=0.0234776
• Test: modnum=11 Detector: detectorSANS_I=0.229431
• Test: modnum=12 Detector: detectorSANS_I=0.0026947
• Test: modnum=13 Detector: detectorSANS_I=0.00269978
• Test: modnum=14 Detector: detectorSANS_I=0.002694
• Test: modnum=15 Detector: detectorSANS_I=0.200408

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
lambda	AA	Mean wavelength of neutrons	6
dlambda	AA	Wavelength spread of neutrons	0.05
r	AA	Radius of scattering hard spheres	150
PHI	1	Particle volume fraction	1e-3
Delta_Rho	cm^-2	Scattering length density	6e10
frac_dir	1	Fraction of statistics for direct beam	0.03
frac_inc	1	Fraction of statistics for incoherent scattering in scattered beam	0.01
modnum	int	Sample "modle number" from SANS_benchmark2	1

Links

• Source code for Unittest_SANS_benchmark2.instr.

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

Generated for mcstas 3.8.4

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Last Modified: Friday, 11-Sep-2026 15:00:09 CEST