.. auto-generated by dev_tools.docs.nxdl from the NXDL source contributed_definitions/NXcollectioncolumn.nxdl.xml -- DO NOT EDIT .. index:: ! NXcollectioncolumn (base class) ! collectioncolumn (base class) see: collectioncolumn (base class); NXcollectioncolumn .. _NXcollectioncolumn: ================== NXcollectioncolumn ================== .. Contributors List .. |contrib_name| replace:: Rubel|RubelMozumder|https://avatars.githubusercontent.com/u/32923026?v=4|2023-06-14 .. |contrib_name| replace:: Domna|domna|https://avatars.githubusercontent.com/u/1014422?v=4|2022-06-21 .. |contrib_name| replace:: Kuehbachm|mkuehbach|https://avatars.githubusercontent.com/u/14091504?v=4|2022-03-31 **Status**: base class, extends :ref:`NXobject` **Description**: .. collapse:: Subclass of NXelectronanalyser to describe the electron collection column of a ... Subclass of NXelectronanalyser to describe the electron collection column of a photoelectron analyser. **Symbols**: No symbol table **Groups cited**: :ref:`NXaperture`, :ref:`NXdeflector`, :ref:`NXlens_em`, :ref:`NXtransformations` .. index:: NXtransformations (base class); used in base class, NXaperture (base class); used in base class, NXdeflector (base class); used in base class, NXlens_em (base class); used in base class **Structure**: .. _/NXcollectioncolumn/scheme-field: .. index:: scheme (field) **scheme**: (optional) :ref:`NX_CHAR ` .. collapse:: Scheme of the electron collection lens, i.e. standard, deflector, PEEM, moment ... Scheme of the electron collection lens, i.e. standard, deflector, PEEM, momentum microscope, etc. .. _/NXcollectioncolumn/extractor_voltage-field: .. index:: extractor_voltage (field) **extractor_voltage**: (optional) :ref:`NX_FLOAT ` {units=\ :ref:`NX_VOLTAGE `} Voltage applied to the extractor lens .. _/NXcollectioncolumn/extractor_current-field: .. index:: extractor_current (field) **extractor_current**: (optional) :ref:`NX_FLOAT ` {units=\ :ref:`NX_CURRENT `} .. collapse:: 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. .. _/NXcollectioncolumn/working_distance-field: .. index:: working_distance (field) **working_distance**: (optional) :ref:`NX_FLOAT ` {units=\ :ref:`NX_LENGTH `} Distance between sample and detector entrance .. _/NXcollectioncolumn/mode-field: .. index:: mode (field) **mode**: (optional) :ref:`NX_CHAR ` Labelling of the lens setting in use. .. _/NXcollectioncolumn/projection-field: .. index:: projection (field) **projection**: (optional) :ref:`NX_CHAR ` .. collapse:: 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`` .. _/NXcollectioncolumn/magnification-field: .. index:: magnification (field) **magnification**: (optional) :ref:`NX_FLOAT ` {units=\ :ref:`NX_DIMENSIONLESS `} The magnification of the electron lens assembly. .. _/NXcollectioncolumn/depends_on-field: .. index:: depends_on (field) **depends_on**: (optional) :ref:`NX_CHAR ` .. collapse:: 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. .. _/NXcollectioncolumn/TRANSFORMATIONS-group: **TRANSFORMATIONS**: (optional) :ref:`NXtransformations` .. collapse:: 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. .. _/NXcollectioncolumn/APERTURE-group: **APERTURE**: (optional) :ref:`NXaperture` .. collapse:: 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 .. _/NXcollectioncolumn/DEFLECTOR-group: **DEFLECTOR**: (optional) :ref:`NXdeflector` Deflectors in the collection column section .. _/NXcollectioncolumn/LENS_EM-group: **LENS_EM**: (optional) :ref:`NXlens_em` Individual lenses in the collection column section Hypertext Anchors ----------------- List of hypertext anchors for all groups, fields, attributes, and links defined in this class. * :ref:`/NXcollectioncolumn/APERTURE-group ` * :ref:`/NXcollectioncolumn/DEFLECTOR-group ` * :ref:`/NXcollectioncolumn/depends_on-field ` * :ref:`/NXcollectioncolumn/extractor_current-field ` * :ref:`/NXcollectioncolumn/extractor_voltage-field ` * :ref:`/NXcollectioncolumn/LENS_EM-group ` * :ref:`/NXcollectioncolumn/magnification-field ` * :ref:`/NXcollectioncolumn/mode-field ` * :ref:`/NXcollectioncolumn/projection-field ` * :ref:`/NXcollectioncolumn/scheme-field ` * :ref:`/NXcollectioncolumn/TRANSFORMATIONS-group ` * :ref:`/NXcollectioncolumn/working_distance-field ` **NXDL Source**: https://github.com/nexusformat/definitions/blob/main/contributed_definitions/NXcollectioncolumn.nxdl.xml