Details

Autor(en) / Beteiligte

• Sugano, Michinaka
• Suzuki, Kento
• Nakamoto, Tatsushi
• Higashi, Norio
• Iida, Masahisa
• Ikeda, Hiroshi
• Ikemoto, Yukiko
• Kawamata, Hiroshi
• Kimura, Nobuhiro
• Ogitsu, Toru
• Ohhata, Hirokatsu
• Okada, Naoki
• Okada, Ryutaro
• Sasaki, Ken-ichi
• Tanaka, Kenichi
• Takahashi, Naoto
• Musso, Andrea
• Todesco, Ezio

Titel

Improvement in Training Performance by Enhancing Coil Mechanical Support in the Beam Separation Dipole Model Magnet for the HL-LHC Upgrade

Ist Teil von

• IEEE transactions on applied superconductivity, 2020-06, Vol.30 (4), p.1-6

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2020

Link zum Volltext

• IEEE_Xplore

Quelle

IEEE/IET Electronic Library (IEL)

Beschreibungen/Notizen

• Nb-Ti based large-aperture beam separation dipoles (MBXFs) will be installed on both sides of two interaction points, ATLAS and CMS, for the high-luminosity LHC upgrade. The most important requirements for MBXF is a coil aperture of 150 mm and the field integral of 35 T·m. Nominal dipole field is 5.6 T at 12 kA and 1.9 K. KEK is in charge of developing MBXF within a framework of CERN-KEK collaboration. This study reports training performance of three 2-m long model magnets (MBXFS1-3) assembled under different mechanical support conditions. Azimuthal pre-stress both in the straight section and at coil end, and axial pre-load were controlled to counteract Lorentz force. In MBXFS2 and 3, wet-winding was also applied but solely to the coil end. Quench start locations for the model magnets are compared to validate the effectiveness of each support method.