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McStas: ILL_H142_D33 Instrument at ILL

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

The ILL_H142_D33 Instrument

A simplified H142 cold guide model at the ILL, with a simple D33 model at the end


  • Site: ILL
  • Author: FARHI Emmanuel (
  • Origin:ILL
  • Date: 2012
  • Version: 1.0


This model decribes a simiplified H142 cold guide at the ILL, with D33.

The D33 Massive dynamic q-range small-angle diffractometer is a Small-Angle Neutron 
Scattering instrument for the characterization of samples with typical sizes
varying from the nanometer scale to few tenth of micrometer. In addition to a
standard monochromatic mode of operation, D33 offers a time of flight mode (TOF)
to cover an enhanced dynamic q-range qmax/qmin in one instrument setting. High
magnetic fields, up to 17 T at the sample position, beam polarization and 3He
spin analysis, facilitate and expand studies of magnetism and allow a more
quantitative analysis of spin incoherent samples. The high flux allows for
kinetic experiments with time resolution of the order of few milliseconds.

mcrun ILL_H142_D33.instr lambda=14 dlambda=1.4

Input parameters

Parameters in boldface are required; the others are optional.
Name Unit Description Default
lambda Angs central wavelength band for guide illumination 14
dlambda Angs half width of guide wavelength band 1.4
m1 - m-coating for 1st guide section 1
m2 - m-coating for 2nd guide section 1
m3 - m-coating for 3th guide section 1
m4 - m-coating for 4th guide section 1
diaphragm cm diaphragm diameter between section 3 and 4; use 0 to remove 0


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

Generated automatically by McDoc, Peter Willendrup <> / Wed Jan 12 15:13:31 2022

Last Modified: Wednesday, 12-Jan-2022 16:13:31 CET
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