Structure design and load test of the small prototype for the JUNO Central Detector

Xiaoyu Yang; Yuekun Heng; Wei He; Xiaoyan Ma; Lei Yang; Jiajie Ling; Zhi Wu; Kaixi Huang; Caishen Wang; Ruiting Lei; Yatian Pei; Xiaohui Qian

doi:10.1007/s41605-022-00354-0

Volume 6 Issue 4

Dec. 2022

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Radiation Detection Technology and Methods > 2022 > 6(4): 439-450 > doi: 10.1007/s41605-022-00354-0

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Structure design and load test of the small prototype for the JUNO Central Detector

1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China;
2. State Key Laboratory of Particle Detection and Electronics, Beijing, 100049, China;
3. University of Chinese Academy of Science, Beijing, 100049, China;
4. Dongguan University of Technology, Dongguan, 523808, China;
5. Sun Yat-Sen University, Guangzhou, 510275, China

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This work is supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA100102).

More Information

Received Date: July 05, 2022
Revised Date: August 25, 2022
Accepted Date: September 03, 2022
Available Online: November 08, 2023
Published Date: October 12, 2022

Abstract

Abstract

Introduction The structure of the Jiangmen Underground Neutrino Observatory (JUNO) Central Detector (CD) was designed using finite element methods (FEM). The structure of the small JUNO CD prototype was also designed using the same structural scheme and method as those of the CD, and the load test was carried out after the accomplishment of structure design and manufacturing.
Methods The load test can help verify the performance and reliability of the mechanical monitoring system and liquid filling system of the CD, verify the consistency of FEM calculations and axial force measurement results of the sensors, and accumulate experience for the installation of the connecting bars.
Conclusion The measurement scheme was considered and determined, and the connecting bars' axial forces under different liquid filling conditions were measured and compared with the FEM results, the consistencies of which were good. The mechanical monitoring system and liquid filling system of the CD were verified during the load test, which met the requirements of design and experiment.
- Structure design,
- Load test,
- Numerical analysis,
- Small prototype,
- Central Detector,
- JUNO

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References (16)

References

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Xiaoyu Yang, Yuekun Heng, Wei He, et al. Structure design and load test of the small prototype for the JUNO Central Detector[J]. Radiation Detection Technology and Methods, 2022, 6(4): 439-450. DOI: 10.1007/s41605-022-00354-0

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