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

.. index::
    ! NXdirecttof (application definition)
    ! directtof (application definition)
    see: directtof (application definition); NXdirecttof

.. _NXdirecttof:

===========
NXdirecttof
===========

**Status**:

  application definition, extends :ref:`NXtofraw`, version 1.0b

**Description**:

  This is a application definition for raw data from a direct geometry TOF spectrometer

**Symbols**:

  No symbol table

**Groups cited**:
  :ref:`NXentry`, :ref:`NXfermi_chopper`, :ref:`NXinstrument`

.. index:: NXentry (base class); used in application definition, NXinstrument (base class); used in application definition, NXfermi_chopper (base class); used in application definition

**Structure**:

  **entry**: :ref:`NXentry`


    .. index:: title (data field)

    **title**: :ref:`NX_CHAR <NX_CHAR>`


    .. index:: start_time (data field)

    **start_time**: :ref:`NX_DATE_TIME <NX_DATE_TIME>`


    .. index:: definition (data field)

    **definition**: :ref:`NX_CHAR <NX_CHAR>`

      Official NeXus NXDL schema to which this file conforms

      Obligatory value:  ``NXdirecttof``

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


      **fermi_chopper**: :ref:`NXfermi_chopper`


        .. index:: rotation_speed (data field)

        **rotation_speed**: :ref:`NX_FLOAT <NX_FLOAT>` {units=\ :ref:`NX_FREQUENCY <NX_FREQUENCY>`}

          chopper rotation speed

        .. index:: energy (data field)

        **energy**: :ref:`NX_FLOAT <NX_FLOAT>` {units=\ :ref:`NX_ENERGY <NX_ENERGY>`}

          energy selected

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