2.3.3.3.107. NXebeam_column

Status:

base class, extends NXobject

Description:

Base class for a set of components providing a controllable electron beam.

Symbols:

No symbol table

Groups cited:

NXactuator, NXaperture, NXbeam, NXchamber, NXcomponent, NXcorrector_cs, NXdeflector, NXfabrication, NXlens_em, NXmonochromator, NXsensor, NXsource, NXtransformations

Structure:

operation_mode: (optional) NX_CHAR

Typically tech-partner, microscope-, and control software-specific ...

Typically tech-partner, microscope-, and control software-specific name of the specific operation mode how the ebeam_column and its components are controlled to achieve a specific illumination condition.

In most cases users do not know, have to care, or are able to disentangle the details of the spatiotemporal dynamics of the components of the microscope. Instead, they rely on the assumption that the microscope and control software work as expected. Selecting then a specific operation_mode assures some level of reproducibility in the illumination conditions.

FABRICATION: (optional) NXfabrication

CHAMBER: (optional) NXchamber

electron_source: (optional) NXsource

The source which creates the electron beam.

name: (optional) NX_CHAR

Given name/alias.

voltage: (optional) NX_NUMBER {units=NX_VOLTAGE}

Voltage relevant to compute the energy of the electrons ...

Voltage relevant to compute the energy of the electrons immediately after they left the gun.

probe: (optional) NX_CHAR

Type of radiation. ...

Type of radiation.

Obligatory value: electron

emitter_type: (optional) NX_CHAR

Emitter type used to create the beam. ...

Emitter type used to create the beam.

If the emitter type is other, give further details in the description field.

emitter_material: (optional) NX_CHAR

Material of which the emitter is build, e.g. the filament material.

description: (optional) NX_CHAR

FABRICATION: (optional) NXfabrication

TRANSFORMATIONS: (optional) NXtransformations

Collection of axis-based translations and rotations to describe the ...

Collection of axis-based translations and rotations to describe the location and geometry of the component in the instrument.

LENS_EM: (optional) NXlens_em

APERTURE: (optional) NXaperture

MONOCHROMATOR: (optional) NXmonochromator

CORRECTOR_CS: (optional) NXcorrector_cs

COMPONENT: (optional) NXcomponent

SENSOR: (optional) NXsensor

ACTUATOR: (optional) NXactuator

BEAM: (optional) NXbeam

Individual characterization results for the position, shape, ...

Individual characterization results for the position, shape, and characteristics of the electron beam.

NXtransformations should be used to specify the location of the position at which the beam was probed.

DEFLECTOR: (optional) NXdeflector

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/NXebeam_column.nxdl.xml