[ Identification | Description | Input parameters | Links ]

The SANSsimpleSpheres Instrument

Instrument short description

Identification

• Site: e
• Author: Linda Udby (udby@nbi.dk)
• Origin: Niels Bohr Institute
• Date: 20.09.2016

Description

Instrument longer description (type, elements, usage...)
This simple SANS instrument is used for the SANS simulation quiz on th e-learning platform www.e-neutrons.org

Example: mcrun SANSsimple.instr  Lambda=10 DLambda=0

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
pinhole_rad	m	radius of the collimating pinholes. Also used to optimise the sample size.	0.004
LC	m	length of the collimator - distance between pinholes	3
LD	m	distance between the last pinhole slit and detector	3
Lambda	Angs	Average wavelength traced from source	6
DLambda	Angs	Wavelength band +/- traced from source	0.001
R	m	average radius of the monodisperse spheres in the sample	400
dR	AA	Normal variance of the radius of spheres in the sample. If zero the sample is monodisperse.	0
PHI	1	Volumefraction of the hard spheres in the sample	1e-2
Delta_Rho	fm/Angs^3	Volume specific scattering length density contrast of the hard, monodisperse spheres in the sample as compared to the solution	0.6
BEAMSTOP	0/1	If set, the beamstop is inserted in front of the detector in order to block the transmitted beam	1
SAMPLE	0/1	If set, a sample of spheres or spherical shells is inserted	1

Links

• Source code for SANSsimpleSpheres.instr.
• https://sim.e-neutrons.org/instrument/intro-ns/SANSsimple

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[ Identification | Description | Input parameters | Links ]

Generated for mcstas 3.5.24

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Last Modified: Monday, 07-Apr-2025 07:02:08 CEST