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

The TAS1_Vana Instrument

The conventional cold-source triple-axis spectrometer TAS1 at Risoe National Laboratory used with a vanadium sample.

Identification

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

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.
The sample is a vanadium and the analyzer is a single plate.

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
PHM	deg	Monochromator rotation angle, aka A1	-37.077
TTM	deg	Monochromator take-off angle, aka A2	-74
TT	deg	Take-off angle at the sample position, aka A4	33.52
TTA	deg	Take-off angle at the analyzer position, aka A6	0
C1	mono-sample arm	[min] Collimator 1 aperture	30
OMC1	deg	Tilt angle of the Collimator 1	5.5
C2	sample-ana arm	[min] Collimator 2 aperture	28
C3	ana-detector arm	[min] Collimator 3 aperture	67
OMA	deg	Analyzer rotation angle, aka A5	-17.45

Links

• Source code for TAS1_Vana.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.

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

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Fri Jan 18 10:06:10 2019

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Last Modified: Friday, 18-Jan-2019 11:06:10 CET