High Power Laser and Particle Beams, Volume. 37, Issue 4, 044001(2025)
Alignment measurement and adjustment for the whole system of Yunguang II accelerator
Figures & Tables(8)
Fig. 1. Structure of Yunguang II accelerator and A-K gap formed by cavity & MITL
Fig. 2. Alignment measurement spot image and the results of generator output flanges
Fig. 3. Alignment measurement spot image and the results of cavity rails
Fig. 4. Target base mechanism and 12-stage cavities after adjustment
Fig. 5. Alignment measurement results of cavity coaxiality and axial position
Table 1. Allocation of core alignment errors
View tableView in ArticleTable 1. Allocation of core alignment errors
cavity number cavity coaxiality/ mm cavity tilt/mm MITL coaxiality/mm MITL fixture position/mm total error/ mm criteria/ mm extreme error rate/% 1 0.3 0.4 0.6 0.5 1.8 1.5 6.0 2 0.3 0.4 0.6 0.5 1.8 1.5 6.0 3 0.5 0.4 1.0 0.5 2.4 2.5 4.8 4 0.7 0.4 1.4 0.5 3.0 3.5 4.3 5 0.9 0.4 1.5 0.5 3.3 3.5 3.7 6 1.0 0.4 1.5 0.5 3.4 3.5 3.1 7 1.0 0.4 1.5 0.5 3.4 3.5 2.8 8 1.0 0.4 1.5 0.5 3.4 3.5 2.4 9 1.0 0.4 1.5 0.5 3.4 3.5 2.3 10 1.0 0.4 1.5 0.5 3.4 3.5 2.1 11 1.0 0.4 1.5 0.5 3.4 3.5 1.9 12 1.0 0.4 1.5 0.5 3.4 3.5 1.8 extension 1.0 0.4 1.5 0.5 3.4 3.5 1.7
Table 2. Allocation of fundamental alignment errors
View tableView in ArticleTable 2. Allocation of fundamental alignment errors
No. measured object measuring items criteria 1 generator output flange verticality ±0.1° 2 cavity rail horizontal position ±1 mm height position ±1 mm 3 cavity axial position ±5 mm 4 MITL rail horizontal position ±3 mm height position ±1 mm
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Deyu He, Yixiang Hu, Shi Yang, Yawei Zhou, Aixu Zhong, Min Dong, Jiahui Yin, Weixi Luo, Jiangtao Zeng, Peitian Cong. Alignment measurement and adjustment for the whole system of Yunguang II accelerator[J]. High Power Laser and Particle Beams, 2025, 37(4): 044001
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Received: Oct. 30, 2024
Accepted: Mar. 24, 2025
Published Online: May. 15, 2025
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