base class, extends NXobject
An X-ray lens, typically at a synchrotron X-ray beam line.
Based on information provided by Gerd Wellenreuther (DESY).
No symbol table
@default: (optional) NX_CHAR
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.
lens_geometry: (optional) NX_CHAR
Geometry of the lens
Any of these values:
symmetric: (optional) NX_BOOLEAN
Is the device symmetric?
cylindrical: (optional) NX_BOOLEAN
Is the device cylindrical?
focus_type: (optional) NX_CHAR
The type of focus of the lens
Any of these values:
Thickness of the lens
Length of the lens
Radius of the curvature as measured in the middle of the lens
Diameter of the lens.
number_of_lenses: (optional) NX_INT
Number of lenses that make up the compound lens.
lens_material: (optional) NX_CHAR
Material used to make the lens.
gas: (optional) NX_CHAR
Gas used to fill the lens
Gas pressure in the lens
depends_on: (optional) NX_CHAR
NeXus positions components by applying a set of translations and rotations to apply to the component starting from 0, 0, 0. The order of these operations is critical and forms what NeXus calls a dependency chain. The depends_on field defines the path to the top most operation of the dependency chain or the string “.” if located in the origin. Usually these operations are stored in a NXtransformations group. But NeXus allows them to be stored anywhere.
cylinder_orientation: (optional) NXnote
Orientation of the cylinder axis.
OFF_GEOMETRY: (optional) NXoff_geometry
This group describes the shape of the beam line component
TRANSFORMATIONS: (optional) NXtransformations
This is the group recommended for holding the chain of translation and rotation operations necessary to position the component within the instrument. The dependency chain may however traverse similar groups in other component groups.
List of hypertext anchors for all groups, fields, attributes, and links defined in this class.