.. auto-generated by script ../../../../utils/nxdl2rst.py from the NXDL source NXxnb.nxdl.xml

.. index::
    ! NXxnb (application definition)
    ! xnb (application definition)
    see: xnb (application definition); NXxnb

.. _NXxnb:

=====
NXxnb
=====

**Status**:

  application definition, extends :ref:`NXxbase`

**Description**:

  raw data from a single crystal diffractometer, extends :ref:`NXxbase`

  This is the application definition for raw data from 
  a single crystal diffractometer
  measuring in normal beam mode. It extends :ref:`NXxbase`, 
  so the full definition is the content of
  :ref:`NXxbase` plus the data defined here. All angles are 
  logged in order to support arbitrary scans in
  reciprocal space.

**Symbols**:

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

  **nP**: Number of points

**Groups cited**:
  :ref:`NXdata`, :ref:`NXdetector`, :ref:`NXentry`, :ref:`NXinstrument`, :ref:`NXsample`

.. index:: NXentry (base class); used in application definition, NXinstrument (base class); used in application definition, NXdetector (base class); used in application definition, NXsample (base class); used in application definition, NXdata (base class); used in application definition

**Structure**:

  .. _/NXxnb/entry-group:

  **entry**: (required) :ref:`NXentry`


    .. _/NXxnb/entry/definition-field:

    .. index:: definition (field)

    **definition**: (required) :ref:`NX_CHAR <NX_CHAR>`

      Official NeXus NXDL schema to which this file conforms

      Obligatory value:  ``NXxnb``

    .. _/NXxnb/entry/instrument-group:

    **instrument**: (required) :ref:`NXinstrument`


      .. _/NXxnb/entry/instrument/detector-group:

      **detector**: (required) :ref:`NXdetector`


        .. _/NXxnb/entry/instrument/detector/polar_angle-field:

        .. index:: polar_angle (field)

        **polar_angle[nP]**: (required) :ref:`NX_FLOAT <NX_FLOAT>` {units=\ :ref:`NX_ANGLE <NX_ANGLE>`}

          The polar_angle (gamma) of the detector for each scan point.

        .. _/NXxnb/entry/instrument/detector/tilt_angle-field:

        .. index:: tilt_angle (field)

        **tilt_angle[nP]**: (required) :ref:`NX_FLOAT <NX_FLOAT>` {units=\ :ref:`NX_ANGLE <NX_ANGLE>`}

          The angle by which the detector has been tilted out of the
          scattering plane.

    .. _/NXxnb/entry/sample-group:

    **sample**: (required) :ref:`NXsample`


      .. _/NXxnb/entry/sample/rotation_angle-field:

      .. index:: rotation_angle (field)

      **rotation_angle[nP]**: (required) :ref:`NX_FLOAT <NX_FLOAT>` {units=\ :ref:`NX_ANGLE <NX_ANGLE>`}

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

    .. _/NXxnb/entry/name-group:

    **name**: (required) :ref:`NXdata`


      .. _/NXxnb/entry/name/polar_angle-link:

      **polar_angle**: :ref:`link<Design-Links>` (suggested target: ``/NXentry/NXinstrument/NXdetector/polar_angle``)


      .. _/NXxnb/entry/name/tilt-link:

      **tilt**: :ref:`link<Design-Links>` (suggested target: ``/NXentry/NXinstrument/NXdetector/tilt``)


      .. _/NXxnb/entry/name/rotation_angle-link:

      **rotation_angle**: :ref:`link<Design-Links>` (suggested target: ``/NXentry/NXsample/rotation_angle``)



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                                                                                        
============================================================================================================== ==============================================================================================================
:ref:`/NXxnb/entry-group </NXxnb/entry-group>`                                                                 :ref:`#nxxnb-entry-group </NXxnb/entry-group>`                                                                
:ref:`/NXxnb/entry/definition-field </NXxnb/entry/definition-field>`                                           :ref:`#nxxnb-entry-definition-field </NXxnb/entry/definition-field>`                                          
:ref:`/NXxnb/entry/instrument-group </NXxnb/entry/instrument-group>`                                           :ref:`#nxxnb-entry-instrument-group </NXxnb/entry/instrument-group>`                                          
:ref:`/NXxnb/entry/instrument/detector-group </NXxnb/entry/instrument/detector-group>`                         :ref:`#nxxnb-entry-instrument-detector-group </NXxnb/entry/instrument/detector-group>`                        
:ref:`/NXxnb/entry/instrument/detector/polar_angle-field </NXxnb/entry/instrument/detector/polar_angle-field>` :ref:`#nxxnb-entry-instrument-detector-polar-angle-field </NXxnb/entry/instrument/detector/polar_angle-field>`
:ref:`/NXxnb/entry/instrument/detector/tilt_angle-field </NXxnb/entry/instrument/detector/tilt_angle-field>`   :ref:`#nxxnb-entry-instrument-detector-tilt-angle-field </NXxnb/entry/instrument/detector/tilt_angle-field>`  
:ref:`/NXxnb/entry/name-group </NXxnb/entry/name-group>`                                                       :ref:`#nxxnb-entry-name-group </NXxnb/entry/name-group>`                                                      
:ref:`/NXxnb/entry/name/polar_angle-link </NXxnb/entry/name/polar_angle-link>`                                 :ref:`#nxxnb-entry-name-polar-angle-link </NXxnb/entry/name/polar_angle-link>`                                
:ref:`/NXxnb/entry/name/rotation_angle-link </NXxnb/entry/name/rotation_angle-link>`                           :ref:`#nxxnb-entry-name-rotation-angle-link </NXxnb/entry/name/rotation_angle-link>`                          
:ref:`/NXxnb/entry/name/tilt-link </NXxnb/entry/name/tilt-link>`                                               :ref:`#nxxnb-entry-name-tilt-link </NXxnb/entry/name/tilt-link>`                                              
:ref:`/NXxnb/entry/sample-group </NXxnb/entry/sample-group>`                                                   :ref:`#nxxnb-entry-sample-group </NXxnb/entry/sample-group>`                                                  
:ref:`/NXxnb/entry/sample/rotation_angle-field </NXxnb/entry/sample/rotation_angle-field>`                     :ref:`#nxxnb-entry-sample-rotation-angle-field </NXxnb/entry/sample/rotation_angle-field>`                    
============================================================================================================== ==============================================================================================================


**NXDL Source**:
  https://github.com/FAIRmat-Experimental/nexus_definitions/tree/fairmat/applications/NXxnb.nxdl.xml