.. index:: Protocol; DIN

DIN
===

**Photon Profile Parameters**

The defined photon parameters are:

*  :ref:`Field Centre<1D Field Centre 50>`
*  :ref:`Field Size<1D Field Size 50>`
*  :ref:`Penumbra 80%-20% Left<1D Penumbra 8020 Left>`
*  :ref:`Penumbra 80%-20% Right<1D Penumbra 8020 Right>`
*  :ref:`Maximum Dose Ratio<1D Symmetry Ratio>`
*  :ref:`Dose Ratio<1D Flatness Ratio>`

**Electron Profile Parameters**

The electron profile parameters are the same as the photon profile parameters.

**Flattened field**

The flattend field is defined by the :ref:`In Field Area`.