Error analysis of vertical test for CEPC 650 MHz superconducting radio-frequency cavity
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916280310693888 |
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| author | Ye, Lingxi Sha, Peng Mi, Zhenghui He, Feisi Zhai, Jiyuan |
| author_facet | Ye, Lingxi Sha, Peng Mi, Zhenghui He, Feisi Zhai, Jiyuan |
| contents | Hundreds of 650 MHz superconducting radio-frequency (SRF) cavities with high intrinsic quality factor (Q0) and accelerating gradient (Eacc) will be adopted for Circular Electron Positron Collider (CEPC). The values of Q0 and Eacc are obtained during vertical test at 2.0 K. Hence, high accuracy of vertical test is essential for evaluating the performance of SRF cavity. The 650 MHz SRF cavities achieved very high Q0 (6E10) and Eacc (40 MV/m) during the vertical test. In our study, the error analysis of vertical test was conducted in the scalar case, in order to achieve high accuracy. The uncertainties of vertical test were obtained through calculation, which was approximately 3% for Eacc and less than 5% for Q0. This result was reasonable and acceptable. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_05715 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Error analysis of vertical test for CEPC 650 MHz superconducting radio-frequency cavity Ye, Lingxi Sha, Peng Mi, Zhenghui He, Feisi Zhai, Jiyuan Accelerator Physics High Energy Physics - Experiment Hundreds of 650 MHz superconducting radio-frequency (SRF) cavities with high intrinsic quality factor (Q0) and accelerating gradient (Eacc) will be adopted for Circular Electron Positron Collider (CEPC). The values of Q0 and Eacc are obtained during vertical test at 2.0 K. Hence, high accuracy of vertical test is essential for evaluating the performance of SRF cavity. The 650 MHz SRF cavities achieved very high Q0 (6E10) and Eacc (40 MV/m) during the vertical test. In our study, the error analysis of vertical test was conducted in the scalar case, in order to achieve high accuracy. The uncertainties of vertical test were obtained through calculation, which was approximately 3% for Eacc and less than 5% for Q0. This result was reasonable and acceptable. |
| title | Error analysis of vertical test for CEPC 650 MHz superconducting radio-frequency cavity |
| topic | Accelerator Physics High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2406.05715 |