3.3.48. NXvelocity_selector

Status:

base class, extends NXobject, version 1.0

Description:

This is the description for a (typically neutron) velocity selector

Symbols:

No symbol table

Groups cited:

NXgeometry

Structure:

type: NX_CHAR

velocity selector type

rotation_speed: NX_FLOAT {units=NX_FREQUENCY}

velocity selector rotation speed

radius: NX_FLOAT {units=NX_LENGTH}

radius at beam centre

spwidth: NX_FLOAT {units=NX_LENGTH}

spoke width at beam centre

length: NX_FLOAT {units=NX_LENGTH}

rotor length

num: NX_INT {units=NX_UNITLESS}

number of spokes/lamella

twist: NX_FLOAT {units=NX_ANGLE}

twist angle along axis

table: NX_FLOAT {units=NX_ANGLE}

offset vertical angle

height: NX_FLOAT {units=NX_LENGTH}

input beam height

width: NX_FLOAT {units=NX_LENGTH}

input beam width

wavelength: NX_FLOAT {units=NX_WAVELENGTH}

wavelength

wavelength_spread: NX_FLOAT {units=NX_WAVELENGTH}

deviation FWHM /Wavelength

geometry: NXgeometry

Source:

Automatically generated from https://github.com/nexusformat/definitions/blob/master/base_classes/NXvelocity_selector.nxdl.xml