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Design and initial results from the "Junior" Levitated Dipole Experiment

Fuente: arXiv

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Main Authors:	Chisholm, Craig S., Berry, Thomas, Garnier, Darren T., Badcock, Rodney A., Bioletti, Gabriel, Bouloukakis, Konstantinos, Brewerton, Emily-Kei, Buchanan, Mike A., Burt, Pierce J., Chambers, Eleanor V. W., Chappell, Kris B., Coulson, Patrick, Davidson, Ryan J., Ellingham, Josh P. M., Geursen, Piet, Hamilton, Kent, Hu, Raymond, Hunter, Emily, Jones, Joseph P., Kusay, Plaso, Lazić, Zvonko, Leuw, Bradley, Lynch, Matthew, Mataira, Ratu, McCrohon, Mick, Meadows, Les, Morris, Jack R., Nowacki, Ryan, Purvis, Jack V., Rice, James H. P., Rutten, Michael, Schimanski, Samuel, Sharma, Aaryan, Siamaki, Mohammad, Simpson, Alex, Simpson, Thomas, Smith, Benjamin, Stiers, Eric, Swanson-Dobbs, Emerson, Todd, Joe, Treacher, Eddyn O. P., Tyler, Jared D., Venturumilli, Sriharsha, Weijers, Hubertus W., Wordsworth, Theodore, Zhou, Nancy
Format:	Preprint
Published:	2025
Subjects:	Plasma Physics
Online Access:	Acceder al recurso
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_version_	1866914178081488896
author	Chisholm, Craig S. Berry, Thomas Garnier, Darren T. Badcock, Rodney A. Bioletti, Gabriel Bouloukakis, Konstantinos Brewerton, Emily-Kei Buchanan, Mike A. Burt, Pierce J. Chambers, Eleanor V. W. Chappell, Kris B. Coulson, Patrick Davidson, Ryan J. Ellingham, Josh P. M. Geursen, Piet Hamilton, Kent Hu, Raymond Hunter, Emily Jones, Joseph P. Kusay, Plaso Lazić, Zvonko Leuw, Bradley Lynch, Matthew Mataira, Ratu McCrohon, Mick Meadows, Les Morris, Jack R. Nowacki, Ryan Purvis, Jack V. Rice, James H. P. Rutten, Michael Schimanski, Samuel Sharma, Aaryan Siamaki, Mohammad Simpson, Alex Simpson, Thomas Smith, Benjamin Stiers, Eric Swanson-Dobbs, Emerson Todd, Joe Treacher, Eddyn O. P. Tyler, Jared D. Venturumilli, Sriharsha Weijers, Hubertus W. Wordsworth, Theodore Zhou, Nancy
author_facet	Chisholm, Craig S. Berry, Thomas Garnier, Darren T. Badcock, Rodney A. Bioletti, Gabriel Bouloukakis, Konstantinos Brewerton, Emily-Kei Buchanan, Mike A. Burt, Pierce J. Chambers, Eleanor V. W. Chappell, Kris B. Coulson, Patrick Davidson, Ryan J. Ellingham, Josh P. M. Geursen, Piet Hamilton, Kent Hu, Raymond Hunter, Emily Jones, Joseph P. Kusay, Plaso Lazić, Zvonko Leuw, Bradley Lynch, Matthew Mataira, Ratu McCrohon, Mick Meadows, Les Morris, Jack R. Nowacki, Ryan Purvis, Jack V. Rice, James H. P. Rutten, Michael Schimanski, Samuel Sharma, Aaryan Siamaki, Mohammad Simpson, Alex Simpson, Thomas Smith, Benjamin Stiers, Eric Swanson-Dobbs, Emerson Todd, Joe Treacher, Eddyn O. P. Tyler, Jared D. Venturumilli, Sriharsha Weijers, Hubertus W. Wordsworth, Theodore Zhou, Nancy
contents	OpenStar Technologies is a private fusion company exploring the levitated dipole concept for commercial fusion energy production. OpenStar has manufactured a new generation of levitated dipole experiment, called "Junior", leveraging recent advances made in high-temperature superconducting magnet technologies. Junior houses a ~5.6 T REBCO high-temperature superconducting magnet in a 5.2 m vacuum chamber, with plasma heating achieved via < 50 kW of electron cyclotron resonance heating power. Importantly, this experiment integrates novel high temperature superconductor power supply technology on board the dipole magnet. Recently OpenStar has completed first experimental campaigns with the Junior experiment, achieving first plasmas in late 2024. Experiments conducted with the full levitated system are planned for 2025. This article provides an overview of the main results from these experiments and details improvements planned for future campaigns.
format	Preprint
id	arxiv_https___arxiv_org_abs_2508_17691
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Design and initial results from the "Junior" Levitated Dipole Experiment Chisholm, Craig S. Berry, Thomas Garnier, Darren T. Badcock, Rodney A. Bioletti, Gabriel Bouloukakis, Konstantinos Brewerton, Emily-Kei Buchanan, Mike A. Burt, Pierce J. Chambers, Eleanor V. W. Chappell, Kris B. Coulson, Patrick Davidson, Ryan J. Ellingham, Josh P. M. Geursen, Piet Hamilton, Kent Hu, Raymond Hunter, Emily Jones, Joseph P. Kusay, Plaso Lazić, Zvonko Leuw, Bradley Lynch, Matthew Mataira, Ratu McCrohon, Mick Meadows, Les Morris, Jack R. Nowacki, Ryan Purvis, Jack V. Rice, James H. P. Rutten, Michael Schimanski, Samuel Sharma, Aaryan Siamaki, Mohammad Simpson, Alex Simpson, Thomas Smith, Benjamin Stiers, Eric Swanson-Dobbs, Emerson Todd, Joe Treacher, Eddyn O. P. Tyler, Jared D. Venturumilli, Sriharsha Weijers, Hubertus W. Wordsworth, Theodore Zhou, Nancy Plasma Physics OpenStar Technologies is a private fusion company exploring the levitated dipole concept for commercial fusion energy production. OpenStar has manufactured a new generation of levitated dipole experiment, called "Junior", leveraging recent advances made in high-temperature superconducting magnet technologies. Junior houses a ~5.6 T REBCO high-temperature superconducting magnet in a 5.2 m vacuum chamber, with plasma heating achieved via < 50 kW of electron cyclotron resonance heating power. Importantly, this experiment integrates novel high temperature superconductor power supply technology on board the dipole magnet. Recently OpenStar has completed first experimental campaigns with the Junior experiment, achieving first plasmas in late 2024. Experiments conducted with the full levitated system are planned for 2025. This article provides an overview of the main results from these experiments and details improvements planned for future campaigns.
title	Design and initial results from the "Junior" Levitated Dipole Experiment
topic	Plasma Physics
url	https://arxiv.org/abs/2508.17691