NXxkappa

Status:

application definition, extends NXxbase

Description:

raw data from a kappa geometry (CAD4) single crystal diffractometer, extends NXxbase

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:

The symbol(s) listed here will be used below to coordinate datasets with the same shape.

nP: Number of points

Groups cited:

NXdata, NXdetector, NXentry, NXinstrument, NXsample

Structure:

entry: (required) NXentry

definition: (required) NX_CHAR

Official NeXus NXDL schema to which this file conforms

Obligatory value: NXxkappa

instrument: (required) NXinstrument

detector: (required) NXdetector

polar_angle[nP]: (required) NX_FLOAT {units=NX_ANGLE}

The polar_angle (two theta) at each scan point

sample: (required) NXsample

rotation_angle[nP]: (required) NX_FLOAT {units=NX_ANGLE}

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

kappa[nP]: (required) NX_FLOAT {units=NX_ANGLE}

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

phi[nP]: (required) NX_FLOAT {units=NX_ANGLE}

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

alpha: (required) NX_FLOAT {units=NX_ANGLE}

This holds the inclination angle of the kappa arm.

name: (required) NXdata

polar_angle: link (suggested target: /NXentry/NXinstrument/NXdetector/polar_angle)

rotation_angle: link (suggested target: /NXentry/NXsample/rotation_angle)

kappa: link (suggested target: /NXentry/NXsample/kappa)

phi: link (suggested target: /NXentry/NXsample/phi)

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

/NXxkappa/entry-group

#nxxkappa-entry-group

/NXxkappa/entry/definition-field

#nxxkappa-entry-definition-field

/NXxkappa/entry/instrument-group

#nxxkappa-entry-instrument-group

/NXxkappa/entry/instrument/detector-group

#nxxkappa-entry-instrument-detector-group

/NXxkappa/entry/instrument/detector/polar_angle-field

#nxxkappa-entry-instrument-detector-polar-angle-field

/NXxkappa/entry/name-group

#nxxkappa-entry-name-group

/NXxkappa/entry/name/kappa-link

#nxxkappa-entry-name-kappa-link

/NXxkappa/entry/name/phi-link

#nxxkappa-entry-name-phi-link

/NXxkappa/entry/name/polar_angle-link

#nxxkappa-entry-name-polar-angle-link

/NXxkappa/entry/name/rotation_angle-link

#nxxkappa-entry-name-rotation-angle-link

/NXxkappa/entry/sample-group

#nxxkappa-entry-sample-group

/NXxkappa/entry/sample/alpha-field

#nxxkappa-entry-sample-alpha-field

/NXxkappa/entry/sample/kappa-field

#nxxkappa-entry-sample-kappa-field

/NXxkappa/entry/sample/phi-field

#nxxkappa-entry-sample-phi-field

/NXxkappa/entry/sample/rotation_angle-field

#nxxkappa-entry-sample-rotation-angle-field

NXDL Source:

https://github.com/FAIRmat-Experimental/nexus_definitions/tree/fairmat/applications/NXxkappa.nxdl.xml