Control of unsteady laser-produced plasma-flow with a multiple-coil magnetic nozzle
Abstract We report an experimental demonstration of controlling plasma flow direction with a magnetic nozzle consisting of multiple coils. Four coils are controlled separately to form an asymmetric magnetic field to change the direction of laser-produced plasma flow. The ablation plasma deforms the...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2017-08-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-017-09273-3 |
| _version_ | 1818754269585604608 |
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| author | Taichi Morita Masafumi Edamoto Satoshi Miura Atsushi Sunahara Naoya Saito Yutaro Itadani Tomihiko Kojima Yoshitaka Mori Tomoyuki Johzaki Yoshihiro Kajimura Shinsuke Fujioka Akifumi Yogo Hiroaki Nishimura Hideki Nakashima Naoji Yamamoto |
| author_facet | Taichi Morita Masafumi Edamoto Satoshi Miura Atsushi Sunahara Naoya Saito Yutaro Itadani Tomihiko Kojima Yoshitaka Mori Tomoyuki Johzaki Yoshihiro Kajimura Shinsuke Fujioka Akifumi Yogo Hiroaki Nishimura Hideki Nakashima Naoji Yamamoto |
| author_sort | Taichi Morita |
| collection | DOAJ |
| description | Abstract We report an experimental demonstration of controlling plasma flow direction with a magnetic nozzle consisting of multiple coils. Four coils are controlled separately to form an asymmetric magnetic field to change the direction of laser-produced plasma flow. The ablation plasma deforms the topology of the external magnetic field, forming a magnetic cavity inside and compressing the field outside. The compressed magnetic field pushes the plasma via the Lorentz force on a diamagnetic current: j × B in a certain direction, depending on the magnetic field configuration. Plasma and magnetic field structure formations depending on the initial magnetic field were simultaneously measured with a self-emission gated optical imager and B-dot probe, respectively, and the probe measurement clearly shows the difference of plasma expansion direction between symmetric and asymmetric initial magnetic fields. The combination of two-dimensional radiation hydrodynamic and three-dimensional hybrid simulations shows the control of the deflection angle with different number of coils, forming a plasma structure similar to that observed in the experiment. |
| first_indexed | 2024-12-18T05:20:34Z |
| format | Article |
| id | doaj.art-95448502f1fe48988f19c339536dac6c |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-18T05:20:34Z |
| publishDate | 2017-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-95448502f1fe48988f19c339536dac6c2022-12-21T21:19:40ZengNature PortfolioScientific Reports2045-23222017-08-01711710.1038/s41598-017-09273-3Control of unsteady laser-produced plasma-flow with a multiple-coil magnetic nozzleTaichi Morita0Masafumi Edamoto1Satoshi Miura2Atsushi Sunahara3Naoya Saito4Yutaro Itadani5Tomihiko Kojima6Yoshitaka Mori7Tomoyuki Johzaki8Yoshihiro Kajimura9Shinsuke Fujioka10Akifumi Yogo11Hiroaki Nishimura12Hideki Nakashima13Naoji Yamamoto14Faculty of Engineering Sciences, Kyushu UniversityInterdisciplinary Graduate School of Engineering Sciences, Kyushu UniversityInterdisciplinary Graduate School of Engineering Sciences, Kyushu UniversityCenter for Materials Under eXtreme Enviroment (CMUXE), School of Nucelar Engineering, Purdue UniersityInterdisciplinary Graduate School of Engineering Sciences, Kyushu UniversityInterdisciplinary Graduate School of Engineering Sciences, Kyushu UniversityInterdisciplinary Graduate School of Engineering Sciences, Kyushu UniversityThe Graduate School for the Creation of New Photonics IndustriesFaculty of Engineering, Hiroshima UniversityDepartment of Electric and Computer Engineering, Akashi National College of TechnologyInstitute of Laser Engineering, Osaka UniversityInstitute of Laser Engineering, Osaka UniversityInstitute of Laser Engineering, Osaka UniversityFaculty of Engineering Sciences, Kyushu UniversityFaculty of Engineering Sciences, Kyushu UniversityAbstract We report an experimental demonstration of controlling plasma flow direction with a magnetic nozzle consisting of multiple coils. Four coils are controlled separately to form an asymmetric magnetic field to change the direction of laser-produced plasma flow. The ablation plasma deforms the topology of the external magnetic field, forming a magnetic cavity inside and compressing the field outside. The compressed magnetic field pushes the plasma via the Lorentz force on a diamagnetic current: j × B in a certain direction, depending on the magnetic field configuration. Plasma and magnetic field structure formations depending on the initial magnetic field were simultaneously measured with a self-emission gated optical imager and B-dot probe, respectively, and the probe measurement clearly shows the difference of plasma expansion direction between symmetric and asymmetric initial magnetic fields. The combination of two-dimensional radiation hydrodynamic and three-dimensional hybrid simulations shows the control of the deflection angle with different number of coils, forming a plasma structure similar to that observed in the experiment.https://doi.org/10.1038/s41598-017-09273-3 |
| spellingShingle | Taichi Morita Masafumi Edamoto Satoshi Miura Atsushi Sunahara Naoya Saito Yutaro Itadani Tomihiko Kojima Yoshitaka Mori Tomoyuki Johzaki Yoshihiro Kajimura Shinsuke Fujioka Akifumi Yogo Hiroaki Nishimura Hideki Nakashima Naoji Yamamoto Control of unsteady laser-produced plasma-flow with a multiple-coil magnetic nozzle Scientific Reports |
| title | Control of unsteady laser-produced plasma-flow with a multiple-coil magnetic nozzle |
| title_full | Control of unsteady laser-produced plasma-flow with a multiple-coil magnetic nozzle |
| title_fullStr | Control of unsteady laser-produced plasma-flow with a multiple-coil magnetic nozzle |
| title_full_unstemmed | Control of unsteady laser-produced plasma-flow with a multiple-coil magnetic nozzle |
| title_short | Control of unsteady laser-produced plasma-flow with a multiple-coil magnetic nozzle |
| title_sort | control of unsteady laser produced plasma flow with a multiple coil magnetic nozzle |
| url | https://doi.org/10.1038/s41598-017-09273-3 |
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