.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "examples/power_density.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_examples_power_density.py>`
        to download the full example code.

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_examples_power_density.py:


Synchrotron Radiation power density
===================================

Basic example of computation of the power density of the radiation emitted 
by an electron beam deflected by the :doc:`simple_dipole` magnet.

.. GENERATED FROM PYTHON SOURCE LINES 10-12

Import modules required for simulations and for comparison with the 
theoretical distribution of dipole radiation.

.. GENERATED FROM PYTHON SOURCE LINES 12-15

.. code-block:: Python


    import pysrw as srw








.. GENERATED FROM PYTHON SOURCE LINES 16-18

We take as example the parameters of a typical bending magnet of a 
third-generation light source (ALBA-Spain)

.. GENERATED FROM PYTHON SOURCE LINES 18-24

.. code-block:: Python


    energy = 3.0    # GeV
    rho = 7.047     # m
    length = 1.384  # m
    gap = 36e-3     # m








.. GENERATED FROM PYTHON SOURCE LINES 25-27

The magnet is created with the default SRW model for dipoles and embedded in 
a magnet container

.. GENERATED FROM PYTHON SOURCE LINES 27-32

.. code-block:: Python

    dipole = srw.magnets.Dipole(energy=energy, bendingR=rho, 
                                coreL=length, edgeL=gap)

    mag_container = srw.magnets.MagnetsContainer([dipole])








.. GENERATED FROM PYTHON SOURCE LINES 33-36

The last input for the simulation is the emitter, instance of 
:py:func:`~pysrw.emitters.ParticleBeam`. Note that we leave the default 
beam intensity of 1 A

.. GENERATED FROM PYTHON SOURCE LINES 36-38

.. code-block:: Python

    beam = srw.emitters.ParticleBeam(energy, xPos=0, yPos=0, zPos=0)








.. GENERATED FROM PYTHON SOURCE LINES 39-41

Create a 5 mm x 5 mm observation mesh, with a resolution that
matches the horizontal symmetry of dipole radiation

.. GENERATED FROM PYTHON SOURCE LINES 41-47

.. code-block:: Python

    observer = srw.wavefronts.Observer(centerCoord=[0, 0, 5],
                                       obsXextension=5e-3, 
                                       obsYextension=5e-3,
                                       obsXres=200e-6,
                                       obsYres=20e-6)








.. GENERATED FROM PYTHON SOURCE LINES 48-49

We can finally simulate and plot the power density radiated by the beam

.. GENERATED FROM PYTHON SOURCE LINES 49-52

.. code-block:: Python

    pwrDensity = srw.computeSrPowerDensity(particleBeam=beam, 
                                           magnetsContainer=mag_container,
                                           observer=observer, relPrec=10.)
    srw.plotPwrDensity(pwrDensity)


.. image-sg:: /examples/images/sphx_glr_power_density_001.png
   :alt: power density
   :srcset: /examples/images/sphx_glr_power_density_001.png
   :class: sphx-glr-single-img


.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    Warning: Electron Beam Emittance was not taken into account.





.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 19.151 seconds)

**Estimated memory usage:**  28 MB


.. _sphx_glr_download_examples_power_density.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: power_density.ipynb <power_density.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: power_density.py <power_density.py>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_