2.3.3.3.66. NXcollectioncolumn

Status:

base class (contribution), extends NXcomponent

Description:

Electron collection column of a photoelectron analyzer.

Symbols:

No symbol table

Groups cited:

NXaperture, NXdeflector, NXfabrication, NXlens_em

Structure:

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 | reciprocal

angular_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.

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.

NXDL Source:

https://github.com/FAIRmat-NFDI/nexus_definitions/tree/fairmat/contributed_definitions/NXcollectioncolumn.nxdl.xml