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McStas: ILL_H5 Instrument at ILL

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

The ILL_H5 Instrument

The full H5 cold guide at the ILL, with IN14, D16, Super-Adam, IN15, D22 This is the geometry before the major H5 guide hall upgrade (up to 2013).

Identification

  • Site: ILL
  • Author: FARHI Emmanuel (farhi@ill.fr)
  • Origin:ILL
  • Date: May, 2011
  • Version: 1.0

Description


This model decribes the full H5 cold guide at the ILL, with IN14, IN16, D16,
Super-Adam, IN15, D22.

The IN14 Cold neutron three-axis spectrometer IN14
The IN16 Cold neutron backscattering spectrometer IN16
  simulated down to the 2nd deflector, and does not include the full
  backscattering geometry.
The D16 Small momentum transfer diffractometer D16 is realistic
The SuperADAM reflectometer is used in low angle diffraction mode.
The IN15 Spin-echo spectrometer 
  is simulated with an incoming polarized beam, but not with a full spin-echo
  description.
The D22 Large dynamic range small-angle diffractometer
  is fully simulated
The CryoEDM with its polarized beam

For each instrument, a sample can be specified (liquid/powder/amorphous), 
with monitoring of the scattering in angular (diffraction) and energy modes 
(for spectroscopy).

Input parameters

Parameters in boldface are required; the others are optional.
Name Unit Description Default
lambda Angs central wavelength band for guide illumination 5
dlambda Angs half width of guide wavelength band 4.5
IN14_lambda Angs IN14 monochromator setting wavelength. Usual 2.4 and 4.2 4.2
IN16_lambda Angs IN16 monochromator setting wavelength. Usual 3.3 and 6.3 6.3
D16_lambda Angs D16 monochromator setting wavelength. Usual 4.7 and 5.6 5.6
SADAM_lambda Angs SuperADAM monochromator setting wavelength. Usual 4.4 4.4
IN15_lambda Angs IN15 velocity selector setting wavelength 6.5
D22_lambda Angs D22 velocity selector setting wavelength 4.5
D22_collimation m D22 collimation length and sample-detector distance 2
IN14_sample string IN14 liquid/powder/amorphous sample "Rb_liq_coh.sqw"
IN16_sample string IN16 liquid/powder/amorphous sample "Rb_liq_coh.sqw"
D16_sample string D16 liquid/powder/amorphous sample "H2O_liq.qSq"
SADAM_sample string SuperADAM liquid/powder/amorphous sample "SiO2_quartza.laz"
D22_sample string D22 liquid/powder/amorphous sample "H2O_liq.qSq"
IN14_RMV -1
IN16_RMV -1
D16_RMV -1
SADAM_RMV -1

Links

  • Source code for ILL_H5.instr.
  • The NoteDPT11 at the ILL
  • Daily notes from K. Andersen about the H5 project
  • Mirotron drawing MR-0656-000 for the IN15 V-mirror geometry

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

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Fri Oct 11 07:30:14 2019


Last Modified: Friday, 11-Oct-2019 09:30:14 CEST
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