Beamline Parameter

This table explains all the parameters that can be used in a RAYX beamline. They are ordered for Elements and Sources and roughly in their order of importance.

Light Source Parameter

Name	Description
Number of Rays	Number of rays emitted from the source
Source Width	Width of the light source in millimeters
Source Height	Height of the light source in millimeters
Source Depth	Depth of the light source in millimeters
Horizontal Divergence	Horizontal angular spread of the rays
Vertical Divergence	Vertical angular spread of the rays
Source Width Distribution	Distribution type for source width
Source Height Distribution	Distribution type for source height
Horizontal Divergence Distribution	Distribution type for horizontal divergence
Vertical Divergence Distribution	Distribution type for vertical divergence
Linear Pol 0	Degree of linear polarization at 0 degrees
Linear Pol 45	Degree of linear polarization at 45 degrees
Circular Pol	Degree of circular polarization
Energy Distribution Type	How the nergy distribution should be defined (e.g. Values, File)
Energy Spread Type	Distribution pattern for the Energy (e.g Gaussian)
Energy Spread	Spread of energy around the central photon energy
Photon Energy Distribution File	Filepath for .DAT- File with Energy distribution information
Photon Energy	Central photon energy
Separate Energies	Number of seperate energy spikes
Electron Energy Orientation	Movement in the Synchrotron (clockwise, counter-clockwise)
Source Pulse Type	(unused)
Vertical E-beam Divergence	Vertical divergence of the electron beam
Bending Radius	Bending radius of the electron bunch in a bending magnet
Electron Energy	Energy of the electrons in the source
Alignment Error	Possible misalignment of the source
Photon Flux	--
Photon Energy	Central photon energy of the source
Energy Spread	Energy spread around the central energy
Energy Spread Unit	Unit for energy spread (eV)
Number of Equidistant Circles	--
Maximum Opening Angle	Maximum divergence angle for the rays
Minimum Opening Angle	Minimum divergence angle for the rays
Delta Opening Angle	--
Parameter P	--
Parameter P Type	--
Sigma Type	--
Undulator Length	--
Electron Sigma X	Horizontal electron beam size
Electron Sigma Xs	Horizontal electron beam divergence
Electron Sigma Y	Vertical electron beam size
Electron Sigma Ys	Vertical electron beam divergence

Optical Element Parameter

Name	Description
World Position	3D coordinates of the optical element's position
Total Width	Width of the optical element
Total Length	Length of the optical element
Total Height	Height of the optical element
Grazing Incidence Angle	Angle of incidence for grazing rays
Arm Length	Length of the arm of the optical element
Entrance Arm Length	Length of the entrance arm
Exit Arm Length	Length of the exit arm
Entrance Arm Length (Mer)	Meridional entrance arm length
Exit Arm Length (Mer)	Meridional exit arm length
Entrance Arm Length (Sag)	Sagittal entrance arm length
Exit Arm Length (Sag)	Sagittal exit arm length
Central Beamstop	Stop placed in the center of the beam
Total Width Stop	Width of the beamstop
Total Height Stop	Height of the beamstop
Opening Width	Width of the optical element opening
Opening Height	Height of the optical element opening
Opening Shape	Shape of the optical element opening (e.g., rectangle, circle)
Grating Mount	--
Radius	Radius of curvature for curved surfaces
Design Energy	Target design energy for the optical element
Line Density	--
Order of Diffraction	Diffraction order for grating elements
Design Energy Mounting	--
Design Order of Diffraction	--
Design Alpha Angle	--
Design Beta Angle	--
Short Radius	Short radius for elliptical elements
Long Radius	Long radius for elliptical elements
Fresnel Z Offset	--
Bending Radius Direction	--
Parameter A11	--
Design Grazing Inc Angle	Grazing incidence angle in design
Long Half Axis A	Long half-axis for elliptical elements
Short Half Axis B	Short half-axis for elliptical elements
Figure Rotation	--
Distance Preceding	Distance from preceding element
Misalignment Coordinate System	Coordinate system for misalignment
Reflectivity Type	Type of reflectivity used
Material Substrate	Material of the substrate
Geometrical Shape	Shape of the optical element
Image Type	Type of image plane
Azimuthal Angle	Azimuthal angle of rotation
Additional Order	--
Slope Error	Slope error for reflecting surfaces
Slope Error Sag	Sagittal slope error
Slope Error Mer	Meridional slope error
Thermal Distortion Amp	Amplitude of thermal distortion
Thermal Distortion Sigma X	Sigma in X for thermal distortion
Thermal Distortion Sigma Z	Sigma in Z for thermal distortion
Cylindrical Bowing Amp	Amplitude of cylindrical bowing
Cylindrical Bowing Radius	Radius for cylindrical bowing
VLS Parameter	--
Reflectivity Type	Type of reflectivity coating
Material Substrate	Substrate material for reflecting surfaces
Roughness Substrate	Surface roughness of the substrate
Density Substrate	Density of the substrate material
Surface Coating	Coating material for the optical surface
Coating File	External file for custom coating
Number Layer	Number of layers in multilayer coatings
Material Coating 1	Material of the first coating layer
Thickness Coating 1	Thickness of the first coating layer
Roughness Coating 1	Roughness of the first coating layer
Density Coating 1	Density of the first coating layer
Material Coating 2	Material of the second coating layer
Thickness Coating 2	Thickness of the second coating layer
Roughness Coating 2	Roughness of the second coating layer
Density Coating 2	Density of the second coating layer
Material Top Layer	Material of the top layer coating
Thickness Top Layer	Thickness of the top layer coating
Roughness Top Layer	Roughness of the top layer coating
Density Top Layer	Density of the top layer coating
Lattice Spacing × 2	Twice the lattice spacing \(2d\) of the crystal (in nm)
Unit Cell Volume	Volume of the crystal's unit cell (in nm³)
Structure Factor F₀	Real and imaginary parts of the forward scattering factor
Structure Factor F_H	Real and imaginary parts of the Bragg-reflected structure factor
Structure Factor F_H̄	Real and imaginary parts of the conjugate reflected factor
Offset Angle α	Crystal surface tilt relative to atomic planes (in radians)