Toward REBCO 20 T+ Dipoles for Accelerators
Toward REBCO 20 T+ Dipoles for Accelerators
复制标题
用于加速器的 REBCO 20 T 偶极子
DOI：
10.1109/tasc.2018.2820177
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发表时间：
2018
影响因子：
1.8
通讯作者：
A. Stenvall
中科院分区：
文献类型：
--
作者：
J. van Nugteren;G. Kirby;J. Murtomäki;G. DeRijk;L. Rossi;A. Stenvall
ReBCO高温超导（HTS）涂层导体带是一种有前途的候选人，推动加速器磁体的磁场远远超过20 T。它们能够在强施加磁场中产生非常高的电流密度，具有非常高的热稳定性，可以承受高横向压力，并允许在20-30 K氦气流中操作，从而可能显著降低操作成本。在EuCARD 2计划期间，在线圈设计、制造和测试方面取得了重大进展。现在EuCARD 2已经结束，CERN和合作者正在启动一项新计划，继续开发HTS加速器磁体。本文介绍了我们的初步想法的概念设计的20 T+加速器磁铁，使用的结果和技术，从EuCARD 2结合一些新的想法。本文讨论了可供选择的横截面布局，使用一个混合配置，包括对齐块，线圈端部的设计和双孔径配置。此外，还讨论了磁体的失超保护。由于导体的高热稳定性和高能量密度，将需要探索一种全新的方法。
ReBCO high temperature superconducting (HTS) coated conductor tapes are a promising candidate for pushing the magnetic fields in accelerator magnets well beyond 20 T. They are capable of very high current densities in intense applied magnetic field, have a very high thermal stability, can withstand high transverse pressures and allow operation in 20–30 K helium gas flow, potentially reducing operating cost significantly. During the EuCARD2 program, significant developments have been made in terms of coil design, manufacturing, and testing. Now that EuCARD2 has come to an end, CERN and collaborators are initiating a new program to continue the development of HTS accelerator magnets. This paper presents our initial thoughts on the conceptual design of a 20 T+ accelerator magnet, using the results and technologies from EuCARD2 combined with some new ideas. The paper discusses the options available for the cross-sectional layout, the use of a hybrid configurations, including Aligned Block, the design of the coil-ends and dual aperture configurations. Also, discussed is the quench protection of the magnets. Due to the high thermal stability of the conductor and high energy densities, it will be required to explore an entirely a new approach.