Study on measurement and accuracy of tunnel network in booster of high energy photon source

Yan Haoyue; Dong Lan; Wang Tong; Ma Na; Liang Jing; Wang Xiaolong; Men Lngling; Liu Xiaoyang; Lu Shang; Han Yuanying; Yan Luping; Zhang Luyan; Li Bo; Ke Zhiyong; He Zhenqiang

doi:10.11884/HPLPB202537.250055

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Article Navigation > High Power Laser and Particle Beams > 2025 > Accepted Manuscript

Yan Haoyue, Dong Lan, Wang Tong, et al. Study on measurement and accuracy of tunnel network in booster of high energy photon source[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.250055

Citation:

Yan Haoyue, Dong Lan, Wang Tong, et al. Study on measurement and accuracy of tunnel network in booster of high energy photon source[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202537.250055

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Study on measurement and accuracy of tunnel network in booster of high energy photon source

doi: 10.11884/HPLPB202537.250055

Yan Haoyue^1
,,
Dong Lan^{1, 2
,
,},
Wang Tong^{1, 2},
Ma Na^{1, 2},
Liang Jing^{1, 2},
Wang Xiaolong^{1, 2},
Men Lngling^{1, 2},
Liu Xiaoyang¹,
Lu Shang¹,
Han Yuanying¹,
Yan Luping¹,
Zhang Luyan¹,
Li Bo^{1, 2},
Ke Zhiyong^{1, 2},
He Zhenqiang^{1, 2}

1.
Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100040, China
2.
Spallation Neutron Source Science Center, Dongguan 523803, China

Received Date: 2025-03-27
Accepted Date: 2025-08-12
Rev Recd Date: 2025-08-13

Available Online: 2025-08-16

Abstract

Abstract

Background
With the increasing requirement of beam stability in particle accelerators, the accuracy of engineering control network is required to be higher.
Purpose
This study aims to elaborate the specific observation scheme for large-scale tunnel control network, and introduce the control network layout, measurement mode and data processing.
Methods
In this paper, taking the booster of High Energy Photon Source (HEPS) with the circumference of 454 m as an example, aiming at the disadvantages of narrow space in the tunnel, the control network layout scheme and measurement method based on laser tracker precision measurement are proposed. At the same time, in the face of the problem of data validity detection of multiple stations and close points in the measurement process, the quality control method of adjacent single station fitting and multi-station fitting is proposed, and the point fitting error RMS is better than 0.1 mm.
Results
Finally, the absolute point error RMS of radial, tangential and elevation coordinate components of the control network reaches 0.2 mm, which meets the installation accuracy requirements of the equipment. At the same time, in order to monitor the stability of the enhancer after the initial construction, two phases of the enhancer control network were observed in one year. The measurement results show that the deformation of the booster tunnel is about 10 mm in one year. The specific manifestation is that the tunnel foundation expands outward in the three areas of southeast, northwest and southwest.
Conclusions
Overall, the point accuracy of the three directions of the control network is different. The correctness and reliability of the results of the control network can be ensured through multiple control network measurements and data processing and analysis, which provides a reference for other synchrotron radiation light source.
- High Energy Photon Source,
- control network,
- laser tracker,
- adjustment treatment,
- precision analysis

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References(16)

References

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