3.3.1.33. NXmonochromator¶
Status:
base class, extends NXobject
Description:
A wavelength defining device.
This is a base class for everything which selects a wavelength or energy, be it a monochromator crystal, a velocity selector, an undulator or whatever.
The expected units are:
wavelength: angstrom
energy: eV
Symbols:
No symbol table
- Groups cited:
NXcrystal, NXdata, NXgeometry, NXgrating, NXvelocity_selector
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.
wavelength: (optional) NX_FLOAT {units=NX_WAVELENGTH}
wavelength selected
wavelength_error: (optional) NX_FLOAT {units=NX_WAVELENGTH}
DEPRECATED: see https://github.com/nexusformat/definitions/issues/820
wavelength standard deviation
wavelength_errors: (optional) NX_FLOAT {units=NX_WAVELENGTH}
wavelength standard deviation
energy: (optional) NX_FLOAT {units=NX_ENERGY}
energy selected
energy_error: (optional) NX_FLOAT {units=NX_ENERGY}
DEPRECATED: see https://github.com/nexusformat/definitions/issues/820
energy standard deviation
energy_errors: (optional) NX_FLOAT {units=NX_ENERGY}
energy standard deviation
distribution: (optional) NXdata
geometry: (optional) NXgeometry
CRYSTAL: (optional) NXcrystal
Use as many crystals as necessary to describe
VELOCITY_SELECTOR: (optional) NXvelocity_selector
GRATING: (optional) NXgrating
For diffraction grating based monochromators
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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