NXlens_em¶
Status:
base class, extends NXobject
Description:
Draft base class definition for electro-magnetic lenses as they are used e.g. in an electron microscope or reflectron device in a local electrode atom probe microscope.
Symbols:
No symbol table
- Groups cited:
Structure:
type: (optional) NX_CHAR
Qualitative type of lens with respect to the number of pole pieces.
Any of these values:
single
double
quadrupole
hexapole
octopolname: (optional) NX_CHAR
Given name.
model: (optional) NX_CHAR
Given brand or model name by the manufacturer.
serial_number: (optional) NX_CHAR
Given hardware name/serial number or hash identifier issued by the manufacturer.
manufacturer_name: (optional) NX_CHAR
Given name of the manufacturer.
description: (optional) NX_CHAR
Ideally an identifier, persistent link, or free text which gives further details about the lens.
TRANSFORMATIONS: (optional) NXtransformations
Collection of axis-based translations and rotations to describe the location and geometry of the corrector as a component in the instrument. Conventions from the NXtransformations base class are used. In principle, the McStas coordinate system is used. The origin of the coordinate system is placed in the center of the gun pinhole as the virtual point-like assumed source of the electron beam. A right-handed coordinate system is assumed whose positive z-axis points in the direction of the propagating electron beam. The translation actively brings the coordinate system under depends_on into registration with a coordinate system in the center of the lens.
Hypertext Anchors¶
Table of hypertext anchors for all groups, fields, attributes, and links defined in this class.
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web page (HTML) anchor |
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