3.3.1.56. NXvelocity_selector¶
Status:
base class, extends NXobject
Description:
A neutron velocity selector
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
velocity selector type
rotation_speed: (optional) NX_FLOAT {units=NX_FREQUENCY}
velocity selector rotation speed
radius: (optional) NX_FLOAT {units=NX_LENGTH}
radius at beam centre
spwidth: (optional) NX_FLOAT {units=NX_LENGTH}
spoke width at beam centre
length: (optional) NX_FLOAT {units=NX_LENGTH}
rotor length
num: (optional) NX_INT {units=NX_UNITLESS}
number of spokes/lamella
twist: (optional) NX_FLOAT {units=NX_ANGLE}
twist angle along axis
table: (optional) NX_FLOAT {units=NX_ANGLE}
offset vertical angle
height: (optional) NX_FLOAT {units=NX_LENGTH}
input beam height
width: (optional) NX_FLOAT {units=NX_LENGTH}
input beam width
wavelength: (optional) NX_FLOAT {units=NX_WAVELENGTH}
wavelength
wavelength_spread: (optional) NX_FLOAT {units=NX_WAVELENGTH}
deviation FWHM /Wavelength
geometry: (optional) NXgeometry
Hypertext Anchors¶
Table of hypertext anchors for all groups, fields, attributes, and links defined in this class.
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