base class, extends NXobject


Subclass of NXelectronanalyser to describe the energy dispersion section of a photoelectron analyser.


No symbol table

Groups cited:

NXaperture, NXdeflector, NXlens_em


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

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