Experiment Research on Feasibility of In-Situ Plasma Cleaning in Normal-conducting Copper Cavities
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866910645136392192 |
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| author | Xia, Qianxu Zheng, Lianmin Du, Yingchao |
| author_facet | Xia, Qianxu Zheng, Lianmin Du, Yingchao |
| contents | To assess the feasibility of in-situ plasma cleaning for copper cavities, a 13.56 MHz inductively coupled plasma platform with a built-in coil was developed at Tsinghua University. Experiments were conducted using this platform to optimize plasma discharge parameters and procedures specific to copper cavities. The results indicate that the "Ar/O + Ar/H method" significantly enhances the work function of the copper surface while reducing field enhancement effects induced by surface burrs. Consequently, this study confirms that in-situ plasma cleaning effectively mitigates field emission within copper cavities, thereby enhancing the stability and acceleration gradient of the accelerator system. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_14386 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Experiment Research on Feasibility of In-Situ Plasma Cleaning in Normal-conducting Copper Cavities Xia, Qianxu Zheng, Lianmin Du, Yingchao Plasma Physics Accelerator Physics To assess the feasibility of in-situ plasma cleaning for copper cavities, a 13.56 MHz inductively coupled plasma platform with a built-in coil was developed at Tsinghua University. Experiments were conducted using this platform to optimize plasma discharge parameters and procedures specific to copper cavities. The results indicate that the "Ar/O + Ar/H method" significantly enhances the work function of the copper surface while reducing field enhancement effects induced by surface burrs. Consequently, this study confirms that in-situ plasma cleaning effectively mitigates field emission within copper cavities, thereby enhancing the stability and acceleration gradient of the accelerator system. |
| title | Experiment Research on Feasibility of In-Situ Plasma Cleaning in Normal-conducting Copper Cavities |
| topic | Plasma Physics Accelerator Physics |
| url | https://arxiv.org/abs/2408.14386 |