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

NameDescription
Number of RaysNumber of rays emitted from the source
Source WidthWidth of the light source in millimeters
Source HeightHeight of the light source in millimeters
Source DepthDepth of the light source in millimeters
Horizontal DivergenceHorizontal angular spread of the rays
Vertical DivergenceVertical angular spread of the rays
Source Width DistributionDistribution type for source width
Source Height DistributionDistribution type for source height
Horizontal Divergence DistributionDistribution type for horizontal divergence
Vertical Divergence DistributionDistribution type for vertical divergence
Linear Pol 0Degree of linear polarization at 0 degrees
Linear Pol 45Degree of linear polarization at 45 degrees
Circular PolDegree of circular polarization
Energy Distribution TypeHow the nergy distribution should be defined (e.g. Values, File)
Energy Spread TypeDistribution pattern for the Energy (e.g Gaussian)
Energy SpreadSpread of energy around the central photon energy
Photon Energy Distribution FileFilepath for .DAT- File with Energy distribution information
Photon EnergyCentral photon energy
Separate EnergiesNumber of seperate energy spikes
Electron Energy OrientationMovement in the Synchrotron (clockwise, counter-clockwise)
Source Pulse Type(unused)
Vertical E-beam DivergenceVertical divergence of the electron beam
Bending RadiusBending radius of the electron bunch in a bending magnet
Electron EnergyEnergy of the electrons in the source
Alignment ErrorPossible misalignment of the source
Photon Flux--
Photon EnergyCentral photon energy of the source
Energy SpreadEnergy spread around the central energy
Energy Spread UnitUnit for energy spread (eV)
Number of Equidistant Circles--
Maximum Opening AngleMaximum divergence angle for the rays
Minimum Opening AngleMinimum divergence angle for the rays
Delta Opening Angle--
Parameter P--
Parameter P Type--
Sigma Type--
Undulator Length--
Electron Sigma XHorizontal electron beam size
Electron Sigma XsHorizontal electron beam divergence
Electron Sigma YVertical electron beam size
Electron Sigma YsVertical electron beam divergence

Optical Element Parameter

NameDescription
World Position3D coordinates of the optical element's position
Total WidthWidth of the optical element
Total LengthLength of the optical element
Total HeightHeight of the optical element
Grazing Incidence AngleAngle of incidence for grazing rays
Arm LengthLength of the arm of the optical element
Entrance Arm LengthLength of the entrance arm
Exit Arm LengthLength 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 BeamstopStop placed in the center of the beam
Total Width StopWidth of the beamstop
Total Height StopHeight of the beamstop
Opening WidthWidth of the optical element opening
Opening HeightHeight of the optical element opening
Opening ShapeShape of the optical element opening (e.g., rectangle, circle)
Grating Mount--
RadiusRadius of curvature for curved surfaces
Design EnergyTarget design energy for the optical element
Line Density--
Order of DiffractionDiffraction order for grating elements
Design Energy Mounting--
Design Order of Diffraction--
Design Alpha Angle--
Design Beta Angle--
Short RadiusShort radius for elliptical elements
Long RadiusLong radius for elliptical elements
Fresnel Z Offset--
Bending Radius Direction--
Parameter A11--
Design Grazing Inc AngleGrazing incidence angle in design
Long Half Axis ALong half-axis for elliptical elements
Short Half Axis BShort half-axis for elliptical elements
Figure Rotation--
Distance PrecedingDistance from preceding element
Misalignment Coordinate SystemCoordinate system for misalignment
Reflectivity TypeType of reflectivity used
Material SubstrateMaterial of the substrate
Geometrical ShapeShape of the optical element
Image TypeType of image plane
Azimuthal AngleAzimuthal angle of rotation
Additional Order--
Slope ErrorSlope error for reflecting surfaces
Slope Error SagSagittal slope error
Slope Error MerMeridional slope error
Thermal Distortion AmpAmplitude of thermal distortion
Thermal Distortion Sigma XSigma in X for thermal distortion
Thermal Distortion Sigma ZSigma in Z for thermal distortion
Cylindrical Bowing AmpAmplitude of cylindrical bowing
Cylindrical Bowing RadiusRadius for cylindrical bowing
VLS Parameter--
Reflectivity TypeType of reflectivity coating
Material SubstrateSubstrate material for reflecting surfaces
Roughness SubstrateSurface roughness of the substrate
Density SubstrateDensity of the substrate material
Surface CoatingCoating material for the optical surface
Coating FileExternal file for custom coating
Number LayerNumber of layers in multilayer coatings
Material Coating 1Material of the first coating layer
Thickness Coating 1Thickness of the first coating layer
Roughness Coating 1Roughness of the first coating layer
Density Coating 1Density of the first coating layer
Material Coating 2Material of the second coating layer
Thickness Coating 2Thickness of the second coating layer
Roughness Coating 2Roughness of the second coating layer
Density Coating 2Density of the second coating layer
Material Top LayerMaterial of the top layer coating
Thickness Top LayerThickness of the top layer coating
Roughness Top LayerRoughness of the top layer coating
Density Top LayerDensity of the top layer coating
Lattice Spacing × 2Twice the lattice spacing (2d) of the crystal (in nm)
Unit Cell VolumeVolume of the crystal's unit cell (in nm³)
Structure Factor F₀Real and imaginary parts of the forward scattering factor
Structure Factor F_HReal and imaginary parts of the Bragg-reflected structure factor
Structure Factor F_H̄Real and imaginary parts of the conjugate reflected factor
Offset Angle αCrystal surface tilt relative to atomic planes (in radians)