.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "auto_examples\01_example_cylindrical_lens.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download_auto_examples_01_example_cylindrical_lens.py>`
        to download the full example code.

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

.. _sphx_glr_auto_examples_01_example_cylindrical_lens.py:


Electrode Creation
-------------------
Before creating any electrodes, we need to familiarize ourselves with a few concepts. First- whenever you initialize a system, you need to pick 
nr, nz, axial_size and radial_size. nr is the grid resolution in the r-dimension, and nz is the same for the z-dimension. Axial_size is the total 
length of the domain in meters in the z-dimension, and radial_size is the same for the r-dimension.

This means the grid resolution in the z-dimension is axial_size/nz, and in the r-dimension is radial_size/nr. You should, if using nonstandard values for these,
ensure you're aware of these so you can properly convert from grid units to meters.

You can initialize a two-cylinder lens with -5000V and 0V respectively as follows:

.. GENERATED FROM PYTHON SOURCE LINES 13-55



.. image-sg:: /auto_examples/images/sphx_glr_01_example_cylindrical_lens_001.png
   :alt: Picht, Display Options
   :srcset: /auto_examples/images/sphx_glr_01_example_cylindrical_lens_001.png
   :class: sphx-glr-single-img





.. code-block:: Python
   :lineno-start: 13

    import numpy as np
    from picht import ElectronOptics, ElectrodeConfig
    import matplotlib.pyplot as plt

    system = ElectronOptics(nr=100, nz=600, axial_size=0.6, radial_size = 0.1)

    electrode = ElectrodeConfig(
        start=30,
        width=100,
        ap_start=30,
        ap_width=40,
        outer_diameter = 50,
        voltage=-5000
    )

    system.add_electrode(electrode)
    electrode1 = ElectrodeConfig(
        start=160,
        width=100,
        ap_start=30,
        ap_width=40,
        outer_diameter = 50,
        voltage=0
    )

    system.add_electrode(electrode1)

    potential = system.solve_fields()

    trajectories = system.simulate_beam(
        energy_eV= 1000,  
        start_z=0,
        r_range=(0.04, 0.06),
        angle_range=(0, 0),
        num_particles=10,
        simulation_time=2e-8
    )

    figure = system.visualize_system(
        trajectories=trajectories, 
        display_options=[True, False, False, False]) #only switches on the lens visualization, keeps the e-field, b-field and animations off in the start, so the generated thumbnails look cleaner

    plt.show()

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

   **Total running time of the script:** (0 minutes 5.215 seconds)


.. _sphx_glr_download_auto_examples_01_example_cylindrical_lens.py:

.. only:: html

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

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

      :download:`Download Jupyter notebook: 01_example_cylindrical_lens.ipynb <01_example_cylindrical_lens.ipynb>`

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

      :download:`Download Python source code: 01_example_cylindrical_lens.py <01_example_cylindrical_lens.py>`

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: 01_example_cylindrical_lens.zip <01_example_cylindrical_lens.zip>`


.. only:: html

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

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