3.3.1.20. NXfermi_chopper¶
Status:
base class, extends NXobject
Description:
A Fermi chopper, possibly with curved slits.
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
Fermi chopper type
rotation_speed: (optional) NX_FLOAT {units=NX_FREQUENCY}
chopper rotation speed
radius: (optional) NX_FLOAT {units=NX_LENGTH}
radius of chopper
slit: (optional) NX_FLOAT {units=NX_LENGTH}
width of an individual slit
r_slit: (optional) NX_FLOAT {units=NX_LENGTH}
radius of curvature of slits
number: (optional) NX_INT {units=NX_UNITLESS}
number of slits
height: (optional) NX_FLOAT {units=NX_LENGTH}
input beam height
width: (optional) NX_FLOAT {units=NX_LENGTH}
input beam width
distance: (optional) NX_FLOAT {units=NX_LENGTH}
distance
wavelength: (optional) NX_FLOAT {units=NX_WAVELENGTH}
Wavelength transmitted by chopper
energy: (optional) NX_FLOAT {units=NX_ENERGY}
energy selected
absorbing_material: (optional) NX_CHAR
absorbing material
transmitting_material: (optional) NX_CHAR
transmitting material
GEOMETRY: (optional) NXgeometry
geometry of the fermi chopper
Hypertext Anchors¶
Table of hypertext anchors for all groups, fields, attributes, and links defined in this class.
documentation (reST source) anchor |
web page (HTML) anchor |
|---|---|