============
Introduction
============

If you are new to IPS-FASTRAN, see first `Quick start guide for IPS-FASTRAN
<https://github.com/ORNL-Fusion/tokdesigner-doc/tree/main/docs/under_construction.rst>`_.

In this tutorial, we will use the TokDesigner base template `tokdesigner.config
<https://github.com/ORNL-Fusion/tokdesigner-doc/tree/main/docs/under_construction.rst>`_
or the IPS-FASTRAN base template `fastran_scenario.config
<https://github.com/ORNL-Fusion/tokdesigner-doc/tree/main/docs/under_construction.rst>`_.
A few modifications to these templates (basically turn on/off necessary components or change constraints/parameters) will be made at each step as needed.

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Problem setup for quick start guide
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CAT-like reactor

* R = 4 m, **A** = 3, 𝜅 = 2, 𝛿 = 0.6
* BT = 7 T, Ip = 8.1 MA
* P = 38 MW

Determine **A** in the range of 2.5 ~ 3.5 for P_net > 50 MW

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Overviews
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:doc:`Step 1. Equilibrium at the reference point<equilibrium>`

:doc:`Step 2. Scan and build a database<scan_grid>`

:doc:`Step 3. Scan with random sampling<scan_random>`

:doc:`Step 4. Generate reduced model<reduced_model>`

:doc:`Step 5. Evalution and filtering<evaluate>`

:doc:`Step 6. Add low fidelity engineering modeling<engineering_simple>`

:doc:`Step 7. Constrained optimization<optimize>`

:doc:`Step 8. Add full phyiscs model: H/CD<heating>`

:doc:`Step 9. Add full phyiscs model: TGLF+EPED<physics>`

:doc:`Step 10. Add medium fidelity engineering modeling<external1>`