NXelectronanalyser¶
Status:
base class, extends NXobject
Description:
Draft subclass of NXinstrument to describe a photoelectron analyser.
Symbols:
The symbols used in the schema to specify e.g. dimensions of arrays
nfa: Number of fast axes (axes acquired symultaneously, without scanning a pysical quantity)
nsa: Number of slow axes (axes acquired scanning a pysical quantity)
- Groups cited:
NXcollectioncolumn, NXdeflector, NXdetector, NXenergydispersion, NXlens, NXspindispersion
Structure:
description: (optional) NX_CHAR
Free text description of the type of the detector
name: (optional) NX_CHAR
energy_resolution: (optional) NX_FLOAT {units=NX_ENERGY}
Overall energy resolution (FWHM of gaussian broadening)
momentum_resolution: (optional) NX_FLOAT {units=NX_WAVENUMBER}
Overall momentum resolution (FWHM)
angular_resolution: (optional) NX_FLOAT {units=NX_ANGLE}
Overall angular resolution (FWHM)
spatial_resolution: (optional) NX_FLOAT {units=NX_LENGTH}
Overall spatial resolution (Airy disk radius)
fast_axes[nfa]: (optional) NX_CHAR
List of the axes that are acquired symultaneously by the detector. These refer only to the experimental variables recorded by the electron analyser. Other variables such as temperature, manipulator angles etc. are labeled as fast or slow in the data. Examples. Hemispherical in ARPES mode: fast_axes: [energy,kx] Hemispherical with channeltron, sweeping energy mode: slow_axes: [energy] Tof: fast_axes: [energy, kx, ky] Momentum microscope, spin-resolved: fast_axes: [energy, kx, ky] slow_axes: [spin up-down, spin left-right] axes can be less abstract than this, i.e. [detector_x, detector_y]. If energy_scan_mode=sweep, fast_axes: [energy, kx]; slow_axes: [energy] is allowed.
slow_axes[nsa]: (optional) NX_CHAR
List of the axes that are acquired by scanning a physical parameter, listed in order of decreasing speed. See fast_axes for examples.
COLLECTIONCOLUMN: (optional) NXcollectioncolumn
class to describe the electron collection (spatial and momentum imaging) column
ENERGYDISPERSION: (optional) NXenergydispersion
class to describe the energy dispersion section
SPINDISPERSION: (optional) NXspindispersion
class to describe the spin dispersion section
DETECTOR: (optional) NXdetector
class to describe the electron detector
DEFLECTOR: (optional) NXdeflector
Deflectors outside the main optics ensambles described by the subclasses
LENS: (optional) NXlens
Individual lenses outside the main optics ensambles described by the subclasses
Hypertext Anchors¶
Table of hypertext anchors for all groups, fields, attributes, and links defined in this class.
documentation (reST source) anchor |
web page (HTML) anchor |
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