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McStas: TAS1_Diff_Slit

[ Identification | Description | Input parameters | Links ]

The TAS1_Diff_Slit Instrument

The conventional cold-source triple-axis spectrometer TAS1 at Risoe National Laboratory used as a diffractometer for a collimation alignment study with a slit sample.

Identification

  • Site: Risoe
  • Author: A. Abrahamsen, N. B. Christensen, and E. Lauridsen
  • Origin: Risoe
  • Date: 1998

Description

This instrument is the conventional cold-source triple-axis spectrometer TAS1
at Risoe National Laboratory. It does not exist anymore, but was used as the
first detailed work performed with the McStas package.
Here it is used as a diffractometer for a collimation alignment study. The
sample is a slit and there is no analyzer.

Input parameters

Parameters in boldface are required; the others are optional.
NameUnitDescriptionDefault
PHMdegMonochromator arm angle, aka A1-37.077
TTMdegMonochromator take-off angle, aka A2-74
TTdegTake-off angle at the sample position, aka A433.52
C1minCollimator 1 aperture (mono-sample arm)30
OMC1degTilt angle of the Collimator 15.5
C2minCollimator 2 aperture (sample-ana arm)28
C3minCollimator 3 aperture (ana-detector arm)67

Links

  • Source code for linup-3.instr.
  • The McStas User manual
  • A. Abrahamsen, N. B. Christensen, and E. Lauridsen. McStas simulations of the TAS1 spectrometer. Student's report, Niels Bohr Institute, University of Copenhagen, 1998.

[ Identification | Description | Input parameters | Links ]

Generated on 2023-09-19 20:01:36


Last Modified: Wednesday, 03-Jan-2024 19:59:10 CET
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