.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "auto_examples/01_ImportingData/plot_03_load_EPR_Spectrum_Bruker.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_ImportingData_plot_03_load_EPR_Spectrum_Bruker.py>`
        to download the full example code

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

.. _sphx_glr_auto_examples_01_ImportingData_plot_03_load_EPR_Spectrum_Bruker.py:


.. _plot_03_load_EPR_Spectrum_Bruker:

======================================
Load EPR spectrum in Bruker EMX format
======================================

In this example we demonstrate how to load and EPR spectrum and process the data.

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Load EPR Data
-------------
First, add DNPLab to the Python environment,

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.. code-block:: Python


    import dnplab as dnp








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and then import an EPR spectrum. DNPLab can handle spectra recorded on different spectrometers such as the Bruker ElexSys, the Bruker EMX system, or home-built spectrometers running on Boris Epel's software SpecMan4EPR. In this example we will load a spectrum from a Bruker EMX system.

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.. code-block:: Python


    data = dnp.load("../../data/bes3t/1D_CW.DTA")








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Process EPR Data
----------------
In this section, we will demonstrate some basic EPR processing.

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First, let's perform a baseline correction using a zeroth order polynomial to remove a DC offset:

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.. code-block:: Python

    data_proc = dnp.remove_background(data, dim="B0")








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Here a new dnpData object is created containing the corrected data. This is helpful, if the processing for different data sets need to be compared. The remove_background function will calculate a zero order polynomial background and will subtract this value from the data. To plot the corrected spectrum simply use:

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.. code-block:: Python


    dnp.fancy_plot(data_proc, xlim=[344, 354], title="EPR Spectrum")




.. image-sg:: /auto_examples/01_ImportingData/images/sphx_glr_plot_03_load_EPR_Spectrum_Bruker_001.png
   :alt: EPR Spectrum
   :srcset: /auto_examples/01_ImportingData/images/sphx_glr_plot_03_load_EPR_Spectrum_Bruker_001.png
   :class: sphx-glr-single-img


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

 .. code-block:: none


    [<matplotlib.lines.Line2D object at 0x7fe13da761f0>]



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The ''fancy_plot'' function is very helpful to create simple plots. For more complicated figures the matplotlib functions can be used. Note, that the plotting functions of the matplotlib package are already loaded into the DNPLab environment.

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.. code-block:: Python


    dnp.plt.figure()
    dnp.plt.plot(data.coords["B0"], data.values.real, label="No Background Correction")
    dnp.plt.plot(
        data_proc.coords["B0"], data_proc.values.real, label="Background Correction"
    )
    dnp.plt.xlabel("Magnetic Field (mT)")
    dnp.plt.ylabel("EPR Signal Intensity (a.u.)")
    dnp.plt.grid(True)
    dnp.plt.tight_layout()
    dnp.plt.legend()
    dnp.plt.show()




.. image-sg:: /auto_examples/01_ImportingData/images/sphx_glr_plot_03_load_EPR_Spectrum_Bruker_002.png
   :alt: plot 03 load EPR Spectrum Bruker
   :srcset: /auto_examples/01_ImportingData/images/sphx_glr_plot_03_load_EPR_Spectrum_Bruker_002.png
   :class: sphx-glr-single-img





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Note the DC offset of about -0.5.

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Show EPR Attributes
-------------------
To show a list of attributes with the EPR spectrum

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.. code-block:: Python


    dnp.fancy_plot(data_proc, xlim=[344, 354], title="EPR Spectrum", showPar=True)
    dnp.plt.show()



.. image-sg:: /auto_examples/01_ImportingData/images/sphx_glr_plot_03_load_EPR_Spectrum_Bruker_003.png
   :alt: EPR Spectrum
   :srcset: /auto_examples/01_ImportingData/images/sphx_glr_plot_03_load_EPR_Spectrum_Bruker_003.png
   :class: sphx-glr-single-img






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

   **Total running time of the script:** (0 minutes 0.400 seconds)


.. _sphx_glr_download_auto_examples_01_ImportingData_plot_03_load_EPR_Spectrum_Bruker.py:

.. only:: html

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

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

      :download:`Download Jupyter notebook: plot_03_load_EPR_Spectrum_Bruker.ipynb <plot_03_load_EPR_Spectrum_Bruker.ipynb>`

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

      :download:`Download Python source code: plot_03_load_EPR_Spectrum_Bruker.py <plot_03_load_EPR_Spectrum_Bruker.py>`


.. only:: html

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

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