4.3.1.6. NXcapillary¶
Status:
base class, extends NXobject
Description:
A capillary lens to focus the X-ray beam.
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.
type: (optional) NX_CHAR
Type of the capillary
Any of these values:
single_bounce
polycapillary
conical_capillarymanufacturer: (optional) NX_CHAR
The manufacturer of the capillary. This is actually important as it may have an impact on performance.
maximum_incident_angle: (optional) NX_FLOAT {units=NX_ANGLE}
accepting_aperture: (optional) NX_FLOAT {units=NX_ANGLE}
working_distance: (optional) NX_FLOAT {units=NX_LENGTH}
focal_size: (optional) NX_FLOAT
The focal size in FWHM
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.
gain: (optional) NXdata
The gain of the capillary as a function of energy
transmission: (optional) NXdata
The transmission of the capillary as a function of energy
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.
Hypertext Anchors¶
List of hypertext anchors for all groups, fields, attributes, and links defined in this class.