3.3.1.57. NXxraylens¶
Status:
base class, extends NXobject
Description:
An X-ray lens, typically at a synchrotron X-ray beam line.
Based on information provided by Gerd Wellenreuther (DESY).
Symbols:
No symbol table
- Groups cited:
Structure:
@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:
paraboloid
spherical
elliptical
hyperbolicalsymmetric: (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:
line|pointlens_thickness: (optional) NX_FLOAT {units=NX_LENGTH}
Thickness of the lens
lens_length: (optional) NX_FLOAT {units=NX_LENGTH}
Length of the lens
curvature: (optional) NX_FLOAT {units=NX_LENGTH}
Radius of the curvature as measured in the middle of the lens
aperture: (optional) NX_FLOAT {units=NX_LENGTH}
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: (optional) NX_FLOAT {units=NX_PRESSURE}
Gas pressure in the lens
cylinder_orientation: (optional) NXnote
Orientation of the cylinder axis.
Hypertext Anchors¶
Table of hypertext anchors for all groups, fields, attributes, and links defined in this class.
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