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

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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.

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References

  1. Li. Yufeng, C. Jun, W. Yifang et al., Unambiguous determination of the neutrino mass hierarchy using reactor neutrinos[J]. Phys. Rev. D 88(1), 013008 (2013)

    Article  ADS  Google Scholar 

  2. A. Abusleme et al. (JUNO Collaboration), JUNO Physics and Detector, arXiv:2104.02565

  3. A. Abusleme et al., Calibration strategy of the JUNO experiment. J. High. Energy. Phys. 3, 1–33 (2021)

    Google Scholar 

  4. Z. Wang (2015) JUNO Central Detector and its prototyping[C]. XIV International Conference on Topics in Astroparticle and Underground Physics (TAUP 2015) IOP Publishing

  5. Y. Xiaoyu, H. Yuekun, Ma. Xiaoyan et al., Thermal reliability analysis of the central detector of JUNO[J]. Radiat. Detect. Technol. Methods 3, 64 (2019)

    Article  Google Scholar 

  6. W. Yuanqing, Z. Liang, H. Yuekun et al., Application of an acrylic vessel supported by a stainless-steel trussfor the JUNO central detector[J]. Sci. China. Technol. Sci. 57(12), 2523–2529 (2014)

    Article  Google Scholar 

  7. M. Li, Z. Guo et al., Separation of scintillation and Cherenkov lights in linear alkyl benzene[J]. Nucl. Inst. Methods. Phys. Res. 830, 303–8 (2016)

    Article  ADS  Google Scholar 

  8. C. Jiahua, W. Zhe et al., Determination of the total absorption peak in an electromagnetic calorimeter[J]. Nucl. Instrum. Methods Phys. Res., Sect. A 827, 165–170 (2016)

    Article  ADS  Google Scholar 

  9. W. Hanyu, W. Zhe, C. Shaomin, Discovery potential for supernova relic neutrinos with slow liquid scintillator detectors[J]. Phys. Lett. B 769, 255–261 (2017)

    Article  Google Scholar 

  10. Li. Huafeng et al., Research on design of the main stainless steel structure of JUNO Central Detector[J]. Building Structure 10, 92–97 (2018)

    Google Scholar 

  11. Y. Xiaoyu, H. Yuekun et al., The design of the small prototype for the central detector of JUNO[J]. Rad. Detect. Technol. Methods 2(2), 1–7 (2018)

    Google Scholar 

  12. K. Yuan, C. Xinji, ANSYS Introduction[M] (China Electric Power Press, Beijing, 2007)

    Google Scholar 

  13. Pu. Guangyi, ANSYS Workbench basic course and example explanation[M] (China WaterPower Press, Beijing, 2010)

    Google Scholar 

  14. L. Hongwen, L. Jianxing, C. Manling, Concise mechanics of materials[M] (Higher Education Press, Beijing, 2016)

    Google Scholar 

  15. S. Kato, Buckling strength calculation of single-layer latticed shell based on the combined effect of constant load and earthquake[J]. Space Structure 4, 79–86 (2015)

    Google Scholar 

  16. JB 4732–1995. Steel pressure vessels - Design by Analysis

Download references

Acknowledgements

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

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Correspondence to Yuekun Heng.

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Yang, X., Heng, Y., He, W. et al. Structure design and load test of the small prototype for the JUNO Central Detector. Radiat Detect Technol Methods 6, 439–450 (2022). https://doi.org/10.1007/s41605-022-00354-0

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  • DOI: https://doi.org/10.1007/s41605-022-00354-0

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