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McXtrace - An X-ray ray-trace simulation package

ESRF; SAXSLAB Niels Bohr Institute DTU Physics

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McXtrace: Template_Johann_spec Instrument at Templates

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

The Template_Johann_spec Instrument

Template instrument for a curved crystal Johann-spectrometer

Identification

  • Site: Templates
  • Author: Erik B Knudsen (erkn@fysik.dtu.dk)
  • Origin: DTU Physics
  • Date: Jan 2019
  • Version: 1.0

Description

This is a template instrument for a Johann spectrometer intended
for easy inclusion in other "real" instrument simulations. 

The source is a divergent line like source which illumnates the 
full crystal. The analyzer crystal itself is modelled as a single
bent crystal curved to a primary radius of 2*Rowland-radius.


Input parameters

Parameters in boldface are required; the others are optional.
Name Unit Description Default
L m Length of the analyzer crystal. 0.2
r_Row m Radius of the Rowland circle. Also governs the crystal curvature (2*r_Row). 0.5
theta_inc deg Angle of incidence at the crystal centre 78.5
dtheta_s deg Rotation angle of the Source. To allow scanning with a pencil beam across the crystal face. 0
phi_s deg Opening angle of source. If 0 it is set to cover the full crystal (and some). 0

Links


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

Generated automatically by McDoc, Peter Willendrup <peter.willendrup@risoe.dk> / Mon Aug 16 15:54:47 2021


Last Modified: Monday, 16-Aug-2021 17:54:47 CEST
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