http://wiki.fusenet.eu/fusionwiki/index.php?action=history&feed=atom&title=ASTRAASTRA - Revision history2026-05-06T06:57:59ZRevision history for this page on the wikiMediaWiki 1.43.3http://wiki.fusenet.eu/fusionwiki/index.php?title=ASTRA&diff=8198&oldid=prevDaniellopezbruna at 12:17, 5 March 20252025-03-05T12:17:26Z<p></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Demanding calculations are conveniently done through system calls from the ASTRA subroutines. One such possible extensions of the ASTRA is the coupling of the calculations to the Montecarlo codes [http://fusionwiki.ciemat.es/wiki/EIRENE Eirene] and <del style="font-weight: bold; text-decoration: none;">Fafner </del>to obtain respectively recycling and [http://fusionwiki.ciemat.es/wiki/TJ-II:Neutral_Beam_Injection neutral beam injection] sources; or the coupling to ray-tracing calculations, including the access to distributed resources<ref>D. López-Bruna, J. M. Reynolds, A. Cappa, J. Martinell, J. García, and C. Gutiérrez-Tapia, “Programas periféricos de ASTRA para el TJ-II,” Informe Técnico Ciemat 1201, CIEMAT, March 2010, [https://documenta.ciemat.es/bitstream/123456789/114/1/40921_IC1201.pdf]</ref>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Demanding calculations are conveniently done through system calls from the ASTRA subroutines. One such possible extensions of the ASTRA is the coupling of the calculations to the Montecarlo codes [http://fusionwiki.ciemat.es/wiki/EIRENE Eirene] and <ins style="font-weight: bold; text-decoration: none;">[[FAFNER|FAFNER]] </ins>to obtain respectively recycling and [http://fusionwiki.ciemat.es/wiki/TJ-II:Neutral_Beam_Injection neutral beam injection] sources; or the coupling to ray-tracing calculations, including the access to distributed resources<ref>D. López-Bruna, J. M. Reynolds, A. Cappa, J. Martinell, J. García, and C. Gutiérrez-Tapia, “Programas periféricos de ASTRA para el TJ-II,” Informe Técnico Ciemat 1201, CIEMAT, March 2010, [https://documenta.ciemat.es/bitstream/123456789/114/1/40921_IC1201.pdf]</ref>.</div></td></tr>
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</table>Daniellopezbrunahttp://wiki.fusenet.eu/fusionwiki/index.php?title=ASTRA&diff=8197&oldid=prevDaniellopezbruna at 12:12, 5 March 20252025-03-05T12:12:55Z<p></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>As an extension of the geometrical possibilities in ASTRA, plasma regions occupied by magnetic islands or ergodic regions (limited by flux surfaces) can be treated as well in the transport models<ref>D. López-Bruna, B. Momo, and Y. Zhang, “One-dimensional treatment of the effect of small magnetic islands on transport in the TJ-II stellarator,” Informe Técnico Ciemat 1402, CIEMAT, Madrid, May 2017</ref>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>As an extension of the geometrical possibilities in ASTRA, plasma regions occupied by <ins style="font-weight: bold; text-decoration: none;">[[Magnetic island|</ins>magnetic islands<ins style="font-weight: bold; text-decoration: none;">]] </ins>or ergodic regions (limited by flux surfaces) can be treated as well in the transport models<ref>D. López-Bruna, B. Momo, and Y. Zhang, “One-dimensional treatment of the effect of small magnetic islands on transport in the TJ-II stellarator,” Informe Técnico Ciemat 1402, CIEMAT, Madrid, May 2017</ref>.</div></td></tr>
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</table>Daniellopezbrunahttp://wiki.fusenet.eu/fusionwiki/index.php?title=ASTRA&diff=8196&oldid=prevDaniellopezbruna at 12:11, 5 March 20252025-03-05T12:11:25Z<p></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Presently, the code is used for transport simulations of both [[Tokamak|tokamak]] and [[Stellarator|stellarator]] plasmas. If used for tokamak plasmas, the Grad-Shafranov equation can be solved to update the geometry as the plasma current density and pressure evolve. In the case of stellarators, the geometry can be taken from experimental files where the most relevant metric coefficients and magnitudes are defined. In this case, [https://servicios.mpr.es/VisorPublicaciones/visordocumentosicopo.aspx?NIPO=83220004X&SUBNIPO=0001&IDPUBLICACION=000183220 dedicated subroutines] can be added to update at will the metric coefficients depending on the plasma currents. Moreover, despite the one-dimensional nature of the transport equations, appropriate handling of the integration space permits also making calculations that include magnetic islands or ergodic plasma regions<ref>D. López-Bruna, B. Momo, I. Predebon, A. López-Fraguas, F. Auriemma, Y. Suzuki, and R. Lorenzini, “Flux-surface averaged radial transport in toroidal plasmas with magnetic islands,” Nuclear Fusion, vol. 58, no. 10, p. 106031, 2018. [http://stacks.iop.org/0029-5515/58/i=10/a=106031]</ref>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Presently, the code is used for transport simulations of both [[Tokamak|tokamak]] and [[Stellarator|stellarator]] plasmas. If used for tokamak plasmas, the Grad-Shafranov equation can be solved to update the geometry as the plasma current density and pressure evolve. In the case of stellarators, the geometry can be taken from experimental files where the most relevant metric coefficients and magnitudes are defined. In this case, [https://servicios.mpr.es/VisorPublicaciones/visordocumentosicopo.aspx?NIPO=83220004X&SUBNIPO=0001&IDPUBLICACION=000183220 dedicated subroutines] can be added to update at will the metric coefficients depending on the plasma currents. Moreover, despite the one-dimensional nature of the transport equations, appropriate handling of the integration space permits also making calculations that include magnetic islands or ergodic plasma regions<ref>D. López-Bruna, B. Momo, I. Predebon, A. López-Fraguas, F. Auriemma, Y. Suzuki, and R. Lorenzini, “Flux-surface averaged radial transport in toroidal plasmas with <ins style="font-weight: bold; text-decoration: none;">[[Magnetic island|</ins>magnetic islands<ins style="font-weight: bold; text-decoration: none;">]]</ins>,” Nuclear Fusion, vol. 58, no. 10, p. 106031, 2018. [http://stacks.iop.org/0029-5515/58/i=10/a=106031]</ref>.</div></td></tr>
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</table>Daniellopezbrunahttp://wiki.fusenet.eu/fusionwiki/index.php?title=ASTRA&diff=8195&oldid=prevDaniellopezbruna at 12:06, 5 March 20252025-03-05T12:06:03Z<p></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ASTRA includes an extended library of physical modules, a graphic interface, plotting and post-run viewing facilities, etc. Along with the common libraries, every user can have his local libraries of different formulae and functions, experimental data and simulation results. The physics models are defined by the user through a high level programming language –ASTRA specific, but easy to learn– where the different formulae and functions can be directly included from the libraries. In addition, there is a set of subroutines that can be plugged into the models, thus allowing for complex evaluations of e.g. source terms. Subroutines can also be created by the user: every time ASTRA is run, it checks for modifications of the ASTRA environment (functions, formulae, subroutines... ) so the corresponding objects are compiled and included in the ASTRA framework for immediate use. Examples of how the ASTRA suit can be extended for particular needs can be found below for the case of the TJ-II Heliac at [https://www.ciemat.es CIEMAT].</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ASTRA includes an extended library of physical modules, a graphic interface, plotting and post-run viewing facilities, etc. Along with the common libraries, every user can have his local libraries of different formulae and functions, experimental data and simulation results. The physics models are defined by the user through a high level programming language –ASTRA specific, but easy to learn– where the different formulae and functions can be directly included from the libraries. In addition, there is a set of subroutines that can be plugged into the models, thus allowing for complex evaluations of e.g. source terms. Subroutines can also be created by the user: every time ASTRA is run, it checks for modifications of the ASTRA environment (functions, formulae, subroutines... ) so the corresponding objects are compiled and included in the ASTRA framework for immediate use. Examples of how the ASTRA suit can be extended for particular needs can be found below for the case of the TJ-II Heliac at [https://www.ciemat.es CIEMAT].</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Extensions of ASTRA for the TJ-II stellarator ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Extensions of ASTRA for the TJ-II stellarator ==</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Demanding calculations are conveniently done through system calls from the ASTRA subroutines. One such possible extensions of the ASTRA is the coupling of the calculations to the Montecarlo codes [http://fusionwiki.ciemat.es/wiki/EIRENE Eirene] and Fafner to obtain respectively recycling and [http://fusionwiki.ciemat.es/wiki/TJ-II:Neutral_Beam_Injection neutral beam injection] sources; or the coupling to ray-tracing calculations, including the access to distributed resources<ref>D. López-Bruna, J. M. Reynolds, A. Cappa, J. Martinell, J. García, and C. Gutiérrez-Tapia, “Programas periféricos de ASTRA para el TJ-II,” Informe Técnico Ciemat 1201, CIEMAT, March 2010, [https://documenta.ciemat.es/bitstream/123456789/114/1/40921_IC1201.pdf]</ref>.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Demanding calculations are conveniently done through system calls from the ASTRA subroutines. One such possible extensions of the ASTRA is the coupling of the calculations to the Montecarlo codes [http://fusionwiki.ciemat.es/wiki/EIRENE Eirene] and Fafner to obtain respectively recycling and [http://fusionwiki.ciemat.es/wiki/TJ-II:Neutral_Beam_Injection neutral beam injection] sources; or the coupling to ray-tracing calculations, including the access to distributed resources<ref>D. López-Bruna, J. M. Reynolds, A. Cappa, J. Martinell, J. García, and C. Gutiérrez-Tapia, “Programas periféricos de ASTRA para el TJ-II,” Informe Técnico Ciemat 1201, CIEMAT, March 2010, [https://documenta.ciemat.es/bitstream/123456789/114/1/40921_IC1201.pdf]</ref>.</div></td></tr>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== See also ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== See also ==</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://w3.pppl.gov/~hammett/work/2009/Astra_ocr.pdf ASTRA online manual]</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* [https://w3.pppl.gov/~hammett/work/2009/Astra_ocr.pdf ASTRA online manual]</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== References ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== References ==</div></td></tr>
</table>Daniellopezbrunahttp://wiki.fusenet.eu/fusionwiki/index.php?title=ASTRA&diff=8194&oldid=prevDaniellopezbruna at 11:52, 5 March 20252025-03-05T11:52:35Z<p></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>As an extension of the geometrical possibilities in ASTRA, plasma regions occupied by magnetic islands or ergodic regions (limited by flux surfaces) can be treated as well in the transport models<ref>D. <del style="font-weight: bold; text-decoration: none;">L ́opez</del>-Bruna, B. Momo, and Y. Zhang, “One-dimensional treatment of the effect of small magnetic islands on transport in the TJ-II stellarator,” <del style="font-weight: bold; text-decoration: none;">Tech. Rep. </del>1402, CIEMAT, Madrid, May 2017</ref>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>As an extension of the geometrical possibilities in ASTRA, plasma regions occupied by magnetic islands or ergodic regions (limited by flux surfaces) can be treated as well in the transport models<ref>D. <ins style="font-weight: bold; text-decoration: none;">López</ins>-Bruna, B. Momo, and Y. Zhang, “One-dimensional treatment of the effect of small magnetic islands on transport in the TJ-II stellarator,” <ins style="font-weight: bold; text-decoration: none;">Informe Técnico Ciemat </ins>1402, CIEMAT, Madrid, May 2017</ref>.</div></td></tr>
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</table>Daniellopezbrunahttp://wiki.fusenet.eu/fusionwiki/index.php?title=ASTRA&diff=8193&oldid=prevDaniellopezbruna at 11:51, 5 March 20252025-03-05T11:51:22Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:51, 5 March 2025</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>As an extension of the geometrical possibilities in ASTRA, plasma regions occupied by magnetic islands or ergodic regions (limited by flux surfaces) can be treated as well in the transport models<ref>D. L ́opez-Bruna, B. Momo, and Y. Zhang, “One-dimensional treatment of the effect of small magnetic islands on transport in the TJ-II stellarator,” Tech. Rep. 1402, CIEMAT, Madrid, May 2017<<del style="font-weight: bold; text-decoration: none;">\</del>ref>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>As an extension of the geometrical possibilities in ASTRA, plasma regions occupied by magnetic islands or ergodic regions (limited by flux surfaces) can be treated as well in the transport models<ref>D. L ́opez-Bruna, B. Momo, and Y. Zhang, “One-dimensional treatment of the effect of small magnetic islands on transport in the TJ-II stellarator,” Tech. Rep. 1402, CIEMAT, Madrid, May 2017<<ins style="font-weight: bold; text-decoration: none;">/</ins>ref>.</div></td></tr>
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</table>Daniellopezbrunahttp://wiki.fusenet.eu/fusionwiki/index.php?title=ASTRA&diff=8192&oldid=prevDaniellopezbruna: /* Extensions of ASTRA for the TJ-II stellarator */2025-03-05T11:51:02Z<p><span class="autocomment">Extensions of ASTRA for the TJ-II stellarator</span></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:51, 5 March 2025</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ASTRA has been used in many transport analysis works related with the TJ-II device. The citations that follow contain the coding of ASTRA models, so they can serve as a reference for the extension of ASTRA to particular needs, as well as a source of examples of ASTRA programming.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>ASTRA has been used in many transport analysis works related with the TJ-II device. The citations that follow contain the coding of ASTRA models, so they can serve as a reference for the extension of ASTRA to particular needs, as well as a source of examples of ASTRA programming.</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The ASTRA suite was adopted to perform interpretative and predictive transport for TJ-II plasmas considering an approximate geometry<ref>D. López-Bruna, F. Castejón, and J. M. Fontdecaba, ''Transporte con Astra en TJ-II,'' Informe Técnico Ciemat 1035, Ciemat, Madrid, Spain, Enero 2004, [https://inis.iaea.org/records/rcnnh-d2398]</ref>. The geometry was improved in collaboration with G. Pereverzev, one of the authors of the ASTRA suite, in order to adapt the non axi-symmetric stellarator geometry<ref>D. López-Bruna, J. A. Romero, and F. Castejón, “Geometría del TJ-II en astra 6.0,” Informe Técnico Ciemat 1086, CIEMAT, Madrid, August 2006., [https://inis.iaea.org/records/xxs57-qjb22]</ref>, which allowed for first estimates of the evolution of the rotational transform according to the net plasma current in the device. A more detailed evolution of the rotational transform, including possible changes of the main metric coefficients depending on the evolution of the plasma pressure has been also programmed in ASTRA<ref>D. López-Bruna, J. M. Reynolds-Barredo, and B. Momo, “Evolution of the rotational transform in TJ-II discharges using the ASTRA code,” Informe Técnico Ciemat 1470, Ciemat, July 2020, [https://servicios.mpr.es/VisorPublicaciones/visordocumentosicopo.aspx?NIPO=83220004X&SUBNIPO=0001&IDPUBLICACION=000183220]</ref>. In this case, internal and driven currents (e. g. bootstrap currents or heating-driven currents) can be included in the calculations.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The ASTRA suite was adopted to perform interpretative and predictive transport for TJ-II plasmas considering an approximate geometry<ref>D. López-Bruna, F. Castejón, and J. M. Fontdecaba, ''Transporte con Astra en TJ-II,'' Informe Técnico Ciemat 1035, Ciemat, Madrid, Spain, Enero 2004, [https://inis.iaea.org/records/rcnnh-d2398]</ref>. The geometry was improved in collaboration with G. Pereverzev, one of the authors of the ASTRA suite, in order to adapt the non axi-symmetric stellarator geometry<ref>D. López-Bruna, J. A. Romero, and F. Castejón, “Geometría del TJ-II en astra 6.0,” Informe Técnico Ciemat 1086, CIEMAT, Madrid, August 2006., [https://inis.iaea.org/records/xxs57-qjb22]</ref>, which allowed for first estimates of the evolution of the rotational transform according to the net plasma current in the device. A more detailed evolution of the rotational transform, including possible changes of the main metric coefficients depending on the evolution of the plasma pressure has been also programmed in ASTRA<ref>D. López-Bruna, J. M. Reynolds-Barredo, and B. Momo, “Evolution of the rotational transform in TJ-II discharges using the ASTRA code,” Informe Técnico Ciemat 1470, Ciemat, July 2020, [https://servicios.mpr.es/VisorPublicaciones/visordocumentosicopo.aspx?NIPO=83220004X&SUBNIPO=0001&IDPUBLICACION=000183220]</ref>. In this case, internal and driven currents (e. g. bootstrap currents or heating-driven currents) can be included in the calculations.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Demanding calculations are conveniently done through system calls from the ASTRA subroutines. One such possible extensions </del>of the ASTRA <del style="font-weight: bold; text-decoration: none;">is the coupling of the calculations to the Montecarlo codes [http://fusionwiki.ciemat.es/wiki/EIRENE Eirene] and Fafner to obtain respectively recycling and [http://fusionwiki.ciemat.es/wiki/TJ-II:Neutral_Beam_Injection neutral beam injection] sources; </del>or the <del style="font-weight: bold; text-decoration: none;">coupling to ray-tracing calculations, including the access to distributed resources</del><ref>D. <del style="font-weight: bold; text-decoration: none;">López</del>-Bruna, <del style="font-weight: bold; text-decoration: none;">J</del>. <del style="font-weight: bold; text-decoration: none;">M. Reynolds</del>, <del style="font-weight: bold; text-decoration: none;">A. Cappa, J. Martinell, J</del>. <del style="font-weight: bold; text-decoration: none;">García</del>, <del style="font-weight: bold; text-decoration: none;">and C. Gutiérrez</del>-<del style="font-weight: bold; text-decoration: none;">Tapia, “Programas periféricos de ASTRA para el </del>TJ-II,” <del style="font-weight: bold; text-decoration: none;">Informe Técnico Ciemat 1201</del>, CIEMAT, <del style="font-weight: bold; text-decoration: none;">March 2010</del>, <del style="font-weight: bold; text-decoration: none;">[https://documenta.ciemat.es/bitstream/123456789/114/1/40921_IC1201.pdf]</del><<del style="font-weight: bold; text-decoration: none;">/</del>ref>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">As an extension </ins>of the <ins style="font-weight: bold; text-decoration: none;">geometrical possibilities in </ins>ASTRA<ins style="font-weight: bold; text-decoration: none;">, plasma regions occupied by magnetic islands </ins>or <ins style="font-weight: bold; text-decoration: none;">ergodic regions (limited by flux surfaces) can be treated as well in </ins>the <ins style="font-weight: bold; text-decoration: none;">transport models</ins><ref>D. <ins style="font-weight: bold; text-decoration: none;">L ́opez</ins>-Bruna, <ins style="font-weight: bold; text-decoration: none;">B</ins>. <ins style="font-weight: bold; text-decoration: none;">Momo</ins>, <ins style="font-weight: bold; text-decoration: none;">and Y</ins>. <ins style="font-weight: bold; text-decoration: none;">Zhang</ins>, <ins style="font-weight: bold; text-decoration: none;">“One</ins>-<ins style="font-weight: bold; text-decoration: none;">dimensional treatment of the effect of small magnetic islands on transport in the </ins>TJ-II <ins style="font-weight: bold; text-decoration: none;">stellarator</ins>,” <ins style="font-weight: bold; text-decoration: none;">Tech. Rep. 1402</ins>, CIEMAT, <ins style="font-weight: bold; text-decoration: none;">Madrid</ins>, <ins style="font-weight: bold; text-decoration: none;">May 2017</ins><<ins style="font-weight: bold; text-decoration: none;">\</ins>ref>.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Demanding calculations are conveniently done through system calls from the ASTRA subroutines. One such possible extensions of the ASTRA is the coupling of the calculations to the Montecarlo codes [http://fusionwiki.ciemat.es/wiki/EIRENE Eirene] and Fafner to obtain respectively recycling and [http://fusionwiki.ciemat.es/wiki/TJ-II:Neutral_Beam_Injection neutral beam injection] sources; or the coupling to ray-tracing calculations, including the access to distributed resources<ref>D. López-Bruna, J. M. Reynolds, A. Cappa, J. Martinell, J. García, and C. Gutiérrez-Tapia, “Programas periféricos de ASTRA para el TJ-II,” Informe Técnico Ciemat 1201, CIEMAT, March 2010, [https://documenta.ciemat.es/bitstream/123456789/114/1/40921_IC1201.pdf]</ref>.</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;"> </del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== See also ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== See also ==</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
</table>Daniellopezbrunahttp://wiki.fusenet.eu/fusionwiki/index.php?title=ASTRA&diff=8191&oldid=prevDaniellopezbruna at 11:43, 5 March 20252025-03-05T11:43:26Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:43, 5 March 2025</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Presently, the code is used for transport simulations of both [[Tokamak|tokamak]] and [[Stellarator|stellarator]] plasmas. If used for tokamak plasmas, the Grad-Shafranov equation can be solved to update the geometry as the plasma current density and pressure evolve. In the case of stellarators, the geometry can be taken from experimental files where the most relevant metric coefficients and magnitudes are defined. In this case, [https://servicios.mpr.es/VisorPublicaciones/visordocumentosicopo.aspx?NIPO=83220004X&SUBNIPO=0001&IDPUBLICACION=000183220 subroutines] can be added to update at will the metric coefficients depending on the plasma currents. Moreover, despite the one-dimensional nature of the transport equations, appropriate handling of the integration space permits also making calculations that include magnetic islands or ergodic plasma regions<ref>D. López-Bruna, B. Momo, I. Predebon, A. López-Fraguas, F. Auriemma, Y. Suzuki, and R. Lorenzini, “Flux-surface averaged radial transport in toroidal plasmas with magnetic islands,” Nuclear Fusion, vol. 58, no. 10, p. 106031, 2018. [http://stacks.iop.org/0029-5515/58/i=10/a=106031]</ref>.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Presently, the code is used for transport simulations of both [[Tokamak|tokamak]] and [[Stellarator|stellarator]] plasmas. If used for tokamak plasmas, the Grad-Shafranov equation can be solved to update the geometry as the plasma current density and pressure evolve. In the case of stellarators, the geometry can be taken from experimental files where the most relevant metric coefficients and magnitudes are defined. In this case, [https://servicios.mpr.es/VisorPublicaciones/visordocumentosicopo.aspx?NIPO=83220004X&SUBNIPO=0001&IDPUBLICACION=000183220 <ins style="font-weight: bold; text-decoration: none;">dedicated </ins>subroutines] can be added to update at will the metric coefficients depending on the plasma currents. Moreover, despite the one-dimensional nature of the transport equations, appropriate handling of the integration space permits also making calculations that include magnetic islands or ergodic plasma regions<ref>D. López-Bruna, B. Momo, I. Predebon, A. López-Fraguas, F. Auriemma, Y. Suzuki, and R. Lorenzini, “Flux-surface averaged radial transport in toroidal plasmas with magnetic islands,” Nuclear Fusion, vol. 58, no. 10, p. 106031, 2018. [http://stacks.iop.org/0029-5515/58/i=10/a=106031]</ref>.</div></td></tr>
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</table>Daniellopezbrunahttp://wiki.fusenet.eu/fusionwiki/index.php?title=ASTRA&diff=8190&oldid=prevDaniellopezbruna at 11:42, 5 March 20252025-03-05T11:42:22Z<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:42, 5 March 2025</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Presently, the code is used for transport simulations of both [[Tokamak|tokamak]] and [[Stellarator|stellarator]] plasmas. If used for tokamak plasmas, the Grad-Shafranov equation can be solved to update the geometry as the plasma current density and pressure evolve. In the case of stellarators, the geometry can be taken from experimental files where the most relevant metric coefficients and magnitudes are defined. In this case, [https://servicios.mpr.es/VisorPublicaciones/visordocumentosicopo.aspx?NIPO=83220004X&SUBNIPO=0001&IDPUBLICACION=000183220 subroutines] can be added to update at will the metric coefficients depending on the plasma currents. Moreover, despite the one-dimensional nature of the transport equations, appropriate handling of the integration space permits also making calculations that include magnetic islands or ergodic plasma regions.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Presently, the code is used for transport simulations of both [[Tokamak|tokamak]] and [[Stellarator|stellarator]] plasmas. If used for tokamak plasmas, the Grad-Shafranov equation can be solved to update the geometry as the plasma current density and pressure evolve. In the case of stellarators, the geometry can be taken from experimental files where the most relevant metric coefficients and magnitudes are defined. In this case, [https://servicios.mpr.es/VisorPublicaciones/visordocumentosicopo.aspx?NIPO=83220004X&SUBNIPO=0001&IDPUBLICACION=000183220 subroutines] can be added to update at will the metric coefficients depending on the plasma currents. Moreover, despite the one-dimensional nature of the transport equations, appropriate handling of the integration space permits also making calculations that include magnetic islands or ergodic plasma regions<ins style="font-weight: bold; text-decoration: none;"><ref>D. López-Bruna, B. Momo, I. Predebon, A. López-Fraguas, F. Auriemma, Y. Suzuki, and R. Lorenzini, “Flux-surface averaged radial transport in toroidal plasmas with magnetic islands,” Nuclear Fusion, vol. 58, no. 10, p. 106031, 2018. [http://stacks.iop.org/0029-5515/58/i=10/a=106031]</ref></ins>.</div></td></tr>
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</table>Daniellopezbrunahttp://wiki.fusenet.eu/fusionwiki/index.php?title=ASTRA&diff=8189&oldid=prevDaniellopezbruna at 11:39, 5 March 20252025-03-05T11:39:46Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 13:39, 5 March 2025</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Presently, the code is used for transport simulations of both [[Tokamak|tokamak]] and [[Stellarator|stellarator]] plasmas. If used for tokamak plasmas, the Grad-Shafranov equation can be solved to update the geometry as the plasma current density and pressure evolve. In the case of stellarators, the geometry can be taken from experimental files where the most relevant metric coefficients and magnitudes are defined.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Presently, the code is used for transport simulations of both [[Tokamak|tokamak]] and [[Stellarator|stellarator]] plasmas. If used for tokamak plasmas, the Grad-Shafranov equation can be solved to update the geometry as the plasma current density and pressure evolve. In the case of stellarators, the geometry can be taken from experimental files where the most relevant metric coefficients and magnitudes are defined<ins style="font-weight: bold; text-decoration: none;">. In this case, [https://servicios.mpr.es/VisorPublicaciones/visordocumentosicopo.aspx?NIPO=83220004X&SUBNIPO=0001&IDPUBLICACION=000183220 subroutines] can be added to update at will the metric coefficients depending on the plasma currents. Moreover, despite the one-dimensional nature of the transport equations, appropriate handling of the integration space permits also making calculations that include magnetic islands or ergodic plasma regions</ins>.</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>ASTRA includes an extended library of physical modules, a graphic interface, plotting and post-run viewing facilities, etc. Along with the common libraries, every user can have his local libraries of different formulae and functions, experimental data and simulation results. The physics models are defined by the user through a high level programming language –ASTRA specific, but easy to learn– where the different formulae and functions can be directly included from the libraries. In addition, there is a set of subroutines that can be plugged into the models, thus allowing for complex evaluations of e.g. source terms. Subroutines can also be created by the user: every time ASTRA is run, it checks for modifications of the ASTRA environment (functions, formulae, subroutines... ) so the corresponding objects are compiled and included in the ASTRA framework for immediate use. Examples of how the ASTRA suit can be extended for particular needs can be found below for the case of the TJ-II Heliac at [<del style="font-weight: bold; text-decoration: none;">http</del>://www.ciemat.es CIEMAT].</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>ASTRA includes an extended library of physical modules, a graphic interface, plotting and post-run viewing facilities, etc. Along with the common libraries, every user can have his local libraries of different formulae and functions, experimental data and simulation results. The physics models are defined by the user through a high level programming language –ASTRA specific, but easy to learn– where the different formulae and functions can be directly included from the libraries. In addition, there is a set of subroutines that can be plugged into the models, thus allowing for complex evaluations of e.g. source terms. Subroutines can also be created by the user: every time ASTRA is run, it checks for modifications of the ASTRA environment (functions, formulae, subroutines... ) so the corresponding objects are compiled and included in the ASTRA framework for immediate use. Examples of how the ASTRA suit can be extended for particular needs can be found below for the case of the TJ-II Heliac at [<ins style="font-weight: bold; text-decoration: none;">https</ins>://www.ciemat.es CIEMAT].</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Extensions of ASTRA for the TJ-II stellarator ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Extensions of ASTRA for the TJ-II stellarator ==</div></td></tr>
</table>Daniellopezbruna