Development of a low energy ion irradiation system for erosion test of first mirror in fusion devices
A low energy ion irradiation system based on the deuterium arc ion source with a high perveance of 1 μP for a single extraction aperture has been successfully developed for the investigation of ion irradiation on plasma-facing components including the first mirror of plasma optical diagnostics syste...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573323004187 |
| _version_ | 1797355313018437632 |
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| author | Kihyun Lee YoungHwa An Bongki Jung Boseong Kim Yoo kwan Kim |
| author_facet | Kihyun Lee YoungHwa An Bongki Jung Boseong Kim Yoo kwan Kim |
| author_sort | Kihyun Lee |
| collection | DOAJ |
| description | A low energy ion irradiation system based on the deuterium arc ion source with a high perveance of 1 μP for a single extraction aperture has been successfully developed for the investigation of ion irradiation on plasma-facing components including the first mirror of plasma optical diagnostics system. Under the optimum operating condition for mirror testing, the ion source has a beam energy of 200 eV and a current density of 3.7 mA/cm2. The ion source comprises a magnetic cusp-type plasma source, an extraction system, a target system with a Faraday cup, and a power supply control system to ensure stable long time operation. Operation parameters of plasma source such as pressure, filament current, and arc power with D2 discharge gas were optimized for beam extraction by measuring plasma parameters with a Langmuir probe. The diode electrode extraction system was designed by IGUN simulation to optimize for 1 μP perveance. It was successfully demonstrated that the ion beam current of ∼4 mA can be extracted through the 10 mm aperture from the developed ion source. The target system with the Faraday cup is also developed to measure the beam current. With the assistance of the power control system, ion beams are extracted while maintaining a consistent arc power for more than 10 min of continuous operation. |
| first_indexed | 2024-03-08T14:09:20Z |
| format | Article |
| id | doaj.art-c47f7e2abec54e1f884c81f9a8951317 |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-03-08T14:09:20Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-c47f7e2abec54e1f884c81f9a89513172024-01-15T04:20:43ZengElsevierNuclear Engineering and Technology1738-57332024-01-015617077Development of a low energy ion irradiation system for erosion test of first mirror in fusion devicesKihyun Lee0YoungHwa An1Bongki Jung2Boseong Kim3Yoo kwan Kim4Korea Atomic Energy Research Institute, Daejeon, Republic of Korea; Corresponding author.Korea Institute of Fusion Energy, Daejeon, Republic of KoreaKorea Atomic Energy Research Institute, Daejeon, Republic of KoreaKorea Institute of Fusion Energy, Daejeon, Republic of Korea; ITER Organization, St. Paul Lez Durance Cedex, FranceKorea Institute of Fusion Energy, Daejeon, Republic of Korea; Department of Energy Systems Research, Ajou University, Suwon, Republic of KoreaA low energy ion irradiation system based on the deuterium arc ion source with a high perveance of 1 μP for a single extraction aperture has been successfully developed for the investigation of ion irradiation on plasma-facing components including the first mirror of plasma optical diagnostics system. Under the optimum operating condition for mirror testing, the ion source has a beam energy of 200 eV and a current density of 3.7 mA/cm2. The ion source comprises a magnetic cusp-type plasma source, an extraction system, a target system with a Faraday cup, and a power supply control system to ensure stable long time operation. Operation parameters of plasma source such as pressure, filament current, and arc power with D2 discharge gas were optimized for beam extraction by measuring plasma parameters with a Langmuir probe. The diode electrode extraction system was designed by IGUN simulation to optimize for 1 μP perveance. It was successfully demonstrated that the ion beam current of ∼4 mA can be extracted through the 10 mm aperture from the developed ion source. The target system with the Faraday cup is also developed to measure the beam current. With the assistance of the power control system, ion beams are extracted while maintaining a consistent arc power for more than 10 min of continuous operation.http://www.sciencedirect.com/science/article/pii/S1738573323004187Ion sourceFirst mirror Ion irradiationNuclear Fusion |
| spellingShingle | Kihyun Lee YoungHwa An Bongki Jung Boseong Kim Yoo kwan Kim Development of a low energy ion irradiation system for erosion test of first mirror in fusion devices Nuclear Engineering and Technology Ion source First mirror Ion irradiation Nuclear Fusion |
| title | Development of a low energy ion irradiation system for erosion test of first mirror in fusion devices |
| title_full | Development of a low energy ion irradiation system for erosion test of first mirror in fusion devices |
| title_fullStr | Development of a low energy ion irradiation system for erosion test of first mirror in fusion devices |
| title_full_unstemmed | Development of a low energy ion irradiation system for erosion test of first mirror in fusion devices |
| title_short | Development of a low energy ion irradiation system for erosion test of first mirror in fusion devices |
| title_sort | development of a low energy ion irradiation system for erosion test of first mirror in fusion devices |
| topic | Ion source First mirror Ion irradiation Nuclear Fusion |
| url | http://www.sciencedirect.com/science/article/pii/S1738573323004187 |
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