Abstract
Introduction
The circular electron-positron collider (CEPC) with a circumference about 100 km, a beam energy up to 120 GeV is proposed by the Institute of High Energy Physics. The heart of the CEPC is a double-ring collider with two interaction points. In each side of the collision point, superconducting double-aperture quadrupole magnets based on cos2θ design which is named QD0 and QF1 separately are required. Such kind of superconducting magnet is designed first time in domestic. Mechanical stability analysis is very important for superconducting magnet before manufacture. This paper mainly focused on the mechanical analysis of the prototype for QD0.
Materials and methods
A 2D 2-layers model was developed using ANSYS to simulate the stress distribution in the coil from collaring process at room temperature to low temperature excitation.
Conclusion
As part of the CEPC project, a 40 mm bore diameter superconducting double-aperture quadrupole magnet named QD0 is being designed and the physical calculation has been completed. This paper introduces the mechanical design, simulation model of prototype for QD0, and mainly expounds on stress analysis. The stress distribution during 4 stages including collaring (load application), collaring (inserting keys), cooling down and excitation is described in detail.
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References
K. Zhang et al., 2-D mechanical design study of a 20-T two-in-one common-coil dipole magnet for high-energy accelerators. IEEE Trans. Appl. Supercond. 26(4), 4003705 (2016)
Y. Zhu, Conceptual design of CEPC interaction region superconducting final focus and anti-solenoid magnets, in Presented at International Workshop on High Energy Circular Electron Positron Collider, Beijing, China, November 6–8 (2017) https://indico.ihep.ac.cn/event/6618/. Accessed 2 Mar 2019
Y. Zhu et al., Proceeding of eeFACT2018, Hong Kong, China, pp. 241–246 (2018)
L. Tkachenko et al., Quadrupole for the SIS 300. IEEE Trans. Appl. Supercond. 19(3), 1167–1171 (2009)
O. Norihito et al., Design and construction of the SuperKEKB QC1 final focus superconducting magnets. IEEE Trans. Appl. Supercond. 25(3), 4001204 (2015)
R. Ostojic et al., Construction and qualification of the pre-series MQM superconducting quadrupoles for the LHC insertions. IEEE Trans. Appl. Supercond. 14(2), 199–202 (2012)
G.A. Kirby et al., Engineering design and manufacturing challenges for a wide-aperture superconducting quadrupole magnet. IEEE Trans. Appl. Supercond. 22(3), 4001804 (2012)
Q. Xu et al., Design of a large single-aperture dipole magnet for HL-LHC upgrad. IEEE Trans. Appl. Supercond. 23(3), 4001305 (2013)
M. Segreti et al., A Nb-Ti 90 mm double-aperture quadrupole for the high luminosity LHC upgrade. IEEE Trans. Appl. Supercond. 25(3), 4001905 (2015)
H. Felice et al., Development of MQYY: a 90-mm NbTi double aperture quadrupole magnet for HL-LHC. IEEE Trans. Appl. Supercond. 28(3), 4500105 (2018)
L. Rossi et al., THE LHC Superconducting magnets, in Proceedings of the 2003 Particle Accelerator Conference, pp. 141–145
M. Peyrot et al., Construction of the new prototype of main quadrupole cold masses for the arc short straight sections of LHC. IEEE Trans. Appl. Supercond. 10(1), 170–173 (2000)
F. Lackner et al., Status of the long MQXFB Nb3Sn coil prototype production for the HiLumi LHC. IEEE Trans. Appl. Supercond. 27(4), 40026 (2017)
Acknowledgment
This work was supported by National Natural Science Foundation of China under Contract 11875272.
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Yang, X., Zhu, Y., Liang, R. et al. Two-dimensional mechanical analysis of superconducting double-aperture quadrupole magnet prototype for CEPC. Radiat Detect Technol Methods 3, 63 (2019). https://doi.org/10.1007/s41605-019-0140-0
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DOI: https://doi.org/10.1007/s41605-019-0140-0