Development of MQYY: A 90-mm NbTi Double Aperture Quadrupole Magnet for HL-LHC

作者：Felice Helene^*; Segreti Michel; Simon Damien; Rifflet Jean Michel; Gheller Jean Marc; Bouziat Denis; Madur Arnaud; Graffin Patrick; Salvador Henri; Millot Jean Francois; Foussat Arnaud; Perez Juan Carlos; Bourcey Nicolas; Todesco Ezio; Fiscarelli Lucio; Dunkel Olaf; Fleiter Jerome; Toral Fernando; Krawcyzk Pawel; Alonso Isabel Bejar; Gavela Hector Garcia; Losasso Marcello

来源：IEEE Transactions on Applied Superconductivity, 2018, 28(3): 4500105.

DOI：10.1109/TASC.2018.2797941

• NbTi
• superconducting accelerator magnet
• quadrupole
• LHC luminosity upgrade

In the context of the HL-LHC project, a NbTi double aperture quadrupole magnet called MQYY is being developed. This 90-mm-aperture quadrupole magnet has a magnetic length of 3.67 m and an operating gradient of 120 T/m at 1.9 K. Its development is done along two parallel paths: 1) the design, fabrication, and test of a short model; 2) the design and fabrication of two full-scale prototypes in industry within the H2020 EU Pre-Commercial Procurement project QUACO implemented by CERN, CEA, CIEMAT, and NCBJ. We report here on the short-model design choices the status of its fabrication and the preparation of the tests. In particular, we describe the magnetic and mechanical design relying on self-supporting collars, the protection aspects, the fabrication, and the cold test preparation. Finally, we present the unusual scheme of the QUACO project leading to the prototypes fabrication.

• 出版日期2018-4
• 单位中国地震局