McXtrace - An X-ray ray-trace simulation package

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

The MAXII_811 Instrument

XAFS and surface diffraction, Materials Science Beamline 811 at MAX-lab.

Identification

• Site: MAXII
• Author: Erik B Knudsen (erkn@fysik.dtu.dk)
• Origin: DTU Physics
• Date: Jan 23, 2011
• Version: 1.0

Description

Fed by a wiggler, this beamline operates in monochromatic mode with an
operational energy tunable between 2.3 – 20 keV (0.6 - 5.3 AA).
The wavelength is chosen by a double monochromator crystal setup where either
Si 111 or Si 311 may be chosen. Furthermore a double mirror
setup may be used to to focus the beam onto a sample. The rotation of the
first mirror defines the position of the second which is computed automatically.
If mirrors are in the monochromators are automatically reposistioned to
accomadate the deflected beam. 

Example: mxrun Max2_811.instr M1=1 M2=1 M1_pitch=1 M2_pitch=1 theta=14.221

Input parameters

Parameters in boldface are required; the others are optional.

Name	Unit	Description	Default
Emin	keV	energy range of radiation emitted from wiggler.	1e-3
Emax			12
prim_h	m	horizaontal and vertical opening of primary slits.	.40e-3
prim_v			0.6e-3
xafs_h			3e-3
xafs_v			3e-3
M1			0
M1_R	m	Radius of curvature of mirror 1.	2000
M1_pitch	deg	Central glancing angle of mirror 1.	0
M2			0
M2_R	m	Radius of curvature of mirror 2.	800
M2_pitch	deg	Central glancing angle of mirror 2.	0
theta	deg	Scattering angle of monochromators	0
TTH	deg	angle at which to put the surface diffraction detector	0
ATT1			0
ATT2			0
ATT3			0
XAFS			0

Links

• Source code for MAXII_811.instr.
• A reference/HTML link for more information http://www.maxlab.lu.se/beamlines/bli811/

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

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Tue Nov 26 12:17:24 2019

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Last Modified: Tuesday, 26-Nov-2019 13:17:24 CET