3.4.26. NXxkappa

Status:

application definition, extends NXxbase, version 1.0b

Description:

This is the application definition for raw data from a kappa geometry (CAD4) single crystal diffractometer. It extends NXxbase, so the full definition is the content of NXxbase plus the data defined here.

Symbols:

No symbol table

Groups cited:

NXdata, NXdetector, NXentry, NXinstrument, NXsample

Structure:

entry: NXentry

definition: NX_CHAR

Official NeXus NXDL schema to which this file conforms

Obligatory value: NXxkappa

instrument: NXinstrument

detector: NXdetector

polar_angle[np]: NX_FLOAT {units=NX_ANGLE}

The polar_angle (two theta) at each scan point

sample: NXsample

rotation_angle[np]: NX_FLOAT {units=NX_ANGLE}

This is an array holding the sample rotation angle at each scan point

kappa[np]: NX_FLOAT {units=NX_ANGLE}

This is an array holding the kappa angle at each scan point

phi[np]: NX_FLOAT {units=NX_ANGLE}

This is an array holding the phi angle at each scan point

alpha: NX_FLOAT {units=NX_ANGLE}

This holds the inclination angle of the kappa arm.

name: NXdata

polar_angle –> /NXentry/NXinstrument/NXdetector/polar_angle

rotation_angle –> /NXentry/NXsample/rotation_angle

kappa –> /NXentry/NXsample/kappa

phi –> /NXentry/NXsample/phi

Source:

Automatically generated from https://github.com/nexusformat/definitions/blob/master/applications/NXxkappa.nxdl.xml