NXenergydispersion¶
Status:
base class, extends NXobject
Description:
Subclass of NXelectronanalyser to describe the energy dispersion section of a photoelectron analyser.
Symbols:
No symbol table
- Groups cited:
Structure:
scheme: (optional) NX_CHAR
Energy dispersion scheme employed, for example: tof, hemispherical, cylindrical, mirror, retarding grid, etc.
pass_energy: (optional) NX_FLOAT {units=NX_ENERGY}
Energy of the electrons on the mean path of the analyser. Pass energy for hemispherics, drift energy for tofs.
center_energy: (optional) NX_FLOAT {units=NX_ENERGY}
Center of the energy window
energy_interval: (optional) NX_FLOAT {units=NX_ENERGY}
The interval of transmitted energies. It can be two different things depending on whether the scan is fixed or swept. With a fixed scan it is a 2 vector containing the extrema of the transmitted energy window (smaller number first). With a swept scan of m steps it is a 2xm array of windows one for each measurement point.
diameter: (optional) NX_FLOAT {units=NX_LENGTH}
Diameter of the dispersive orbit
energy_scan_mode: (optional) NX_CHAR
Way of scanning the energy axis (fixed or sweep).
Any of these values:
fixed
|sweep
tof_distance: (optional) NX_FLOAT {units=NX_LENGTH}
Length of the tof drift electrode
APERTURE: (optional) NXaperture
Size, position and shape of a slit in dispersive analyzer, e.g. entrance and exit slits.
DEFLECTOR: (optional) NXdeflector
Deflectors in the energy dispersive section
LENS_EM: (optional) NXlens_em
Individual lenses in the energy dispersive section
Hypertext Anchors¶
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