Magnetic and structural design of a 15 T Nb3Sn accelerator dipole model

[摘要] Hadron Colliders (HC) are the most powerful discovery tools in modern high energy physics. A 100 TeV scale HC with a nominal operation field of at least 15 T is being considered for the post-LHC era. The choice of a 15 T nominal field requires using the Nb3Sn technology. Practical demonstration of this field level in an accelerator-quality magnet and substantial reduction of the magnet costs are the key conditions for realization of such a machine. FNAL has started the development of a 15 T Nb3Sn dipole demonstrator for a 100 TeV scale HC. The magnet design is based on 4-layer shell type coils, graded between the inner and outer layers to maximize the performance. The experience gained during the 11-T dipole R&D campaign is applied to different aspects of the magnet design. This paper describes the magnetic and structural designs and parameters of the 15 T Nb3Sn dipole and the steps towards the demonstration model.

[发布机构] Fermi National Accelerator Laboratory, Batavia; IL, United States^1

[效力级别] 物理学 [学科分类] 材料科学（综合）

[关键词] Accelerator dipoles;Demonstration models;Field level;Hadron colliders;Magnet designs;Nominal operations;Outer layer;Substantial reduction