NXcollectioncolumn¶
Status:
base class, extends NXobject
Description:
Draft subclass of NXelectronanalyser to describe the electron collection column of a photoelectron analyser.
Symbols:
The symbols used in the schema to specify e.g. dimensions of arrays
nl: Number of lenses in the collection column
- Groups cited:
Structure:
scheme: (optional) NX_CHAR
Scheme of the electron collection lens, i.e. standard, deflector, PEEM, momentum microscope, etc.
extractor_voltage: (optional) NX_FLOAT {units=NX_VOLTAGE}
Voltage applied to the extractor lens
extractor_current: (optional) NX_FLOAT {units=NX_CURRENT}
Indicating leakage, field emission or arc currents to the extractor lens
working_distance: (optional) NX_FLOAT {units=NX_LENGTH}
Distance between sample and detector entrance
lens_names[nl]: (optional) NX_CHAR
Set of names of electron optic lenses
lens_voltages[nl]: (optional) NX_FLOAT {units=NX_VOLTAGE}
Array of corresponding voltages
projection: (optional) NX_CHAR
The space projected in the angularly dispersive directions, real or reciprocal
magnification: (optional) NX_FLOAT {units=NX_DIMENSIONLESS}
The magnification of the projected image in the angularly dispersive direction
field_aperture: (optional) NXaperture
The size and position of the field aperture inserted in the column
contrast_aperture: (optional) NXaperture
The size and postion of the contrast aperture inserted in the column.
DEFLECTOR: (optional) NXdeflector
Deflectors in the collection column section
LENS: (optional) NXlens
Individual lenses in the collection column section
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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