2.3.3.3.79. NXcollectioncolumn¶
Status:
base class, extends NXobject
Description:
Subclass of NXelectronanalyser to describe the electron collection ...
Subclass of NXelectronanalyser to describe the electron collection column of a photoelectron analyser.
Symbols:
No symbol table
- Groups cited:
NXaperture, NXdeflector, NXfabrication, NXlens_em, NXtransformations
Structure:
@default: (optional) NX_CHAR
Declares which child group contains a path leading ...
Declares which child group contains a path leading to a NXdata group.
It is recommended (as of NIAC2014) to use this attribute to help define the path to the default dataset to be plotted. See https://www.nexusformat.org/2014_How_to_find_default_data.html for a summary of the discussion.
scheme: (optional) NX_CHAR
Scheme of the electron collection lens, i.e. angular dispersive, ...
Scheme of the electron collection lens, i.e. angular dispersive, spatial dispersive, momentum dispersive, non-dispersive, etc.
extractor_voltage: (optional) NX_FLOAT {units=NX_VOLTAGE}
Voltage applied to the extractor lens
extractor_current: (optional) NX_FLOAT {units=NX_CURRENT}
Current necessary to keep the extractor lens at a set voltage. Variations ...
Current necessary to keep the extractor lens at a set voltage. Variations indicate 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_mode: (optional) NX_CHAR
Labelling of the lens setting in use.
projection: (optional) NX_CHAR
The space projected in the angularly dispersive directions, real or reciprocal ...
The space projected in the angularly dispersive directions, real or reciprocal
Any of these values:
real|reciprocalangular_acceptance: (optional) NX_FLOAT {units=NX_ANGLE}
Acceptance angle of the collection column. ...
Acceptance angle of the collection column.
This concept is related to term 7.4 of the ISO 18115-1:2023 standard.
spatial_acceptance: (optional) NX_FLOAT {units=NX_LENGTH}
Acceptance length or area of the collection column.
magnification: (optional) NX_FLOAT {units=NX_DIMENSIONLESS}
The magnification of the electron lens assembly.
depends_on: (optional) NX_CHAR
Specifies the position of the collectioncolumn by pointing to the last ...
Specifies the position of the collectioncolumn by pointing to the last transformation in the transformation chain in the NXtransformations group.
TRANSFORMATIONS: (optional) NXtransformations
Collection of axis-based translations and rotations to describe the location a ...
Collection of axis-based translations and rotations to describe the location and geometry of the deflector as a component in the instrument. Conventions from the NXtransformations base class are used. In principle, the McStas coordinate system is used. The first transformation has to point either to another component of the system or . (for pointing to the reference frame) to relate it relative to the experimental setup. Typically, the components of a system should all be related relative to each other and only one component should relate to the reference coordinate system.
APERTURE: (optional) NXaperture
The size and position of an aperture inserted in the column, e.g. field apertu ...
The size and position of an aperture inserted in the column, e.g. field aperture or contrast aperture
DEFLECTOR: (optional) NXdeflector
Deflectors in the collection column section
LENS_EM: (optional) NXlens_em
Individual lenses in the collection column section
FABRICATION: (optional) NXfabrication
Hypertext Anchors¶
List of hypertext anchors for all groups, fields, attributes, and links defined in this class.
