Conveners
Thu-Mo-Or16 - High Field Magnets for LHC Upgrade
- Renuka Rajput-Ghoshal (Jefferson Lab)
- Soren Prestemon (LBNL)
The final development and demonstration of the US made low beta quadrupoles for HL-LHC is in full swing. CERN is planning to start the upgrade of Large Hadron Collider during the Long Shutdown III, which is scheduled to start in 2024. The US is planning to contribute to this upgrade by providing the Q1 and Q3 Inner Triplet elements plus other components. The first iteration of the magnet...
Abstract— The High Luminosity LHC Project target is to reach an integrated luminosity of the LHC of 3000 fb-1, corresponding to a factor 10 increase in collisions with respect to the current accelerator. One major improvement foreseen is the reduction of the beam size at the collision points. This requires the development of 150 mm single aperture quadrupoles for the interaction regions. These...
The future high luminosity (Hi-Lumi) upgrade of the Large Hadron Collider (LHC) at CERN will include eight (plus two spares) 8.4 m-long cryostatted cold masses which will be components of the triplets for two LHC insertion regions. Each cold mass will consist of two 4.2 m-long Nb3Sn high gradient quadrupole magnets, designated MQXFA, with aperture 150 mm and operating gradient 132.6 T/m, for a...
The U.S. High-Luminosity LHC Accelerator Upgrade Project (HL-LHC AUP) team is collaborating with CERN in the design and fabrication of the first 4.5 m long MQXFA magnets, a 150 mm aperture high-field Nb3Sn quadrupole magnet that uses the aluminum shell-based bladder-and-key technology. The first two prototype magnets, MQXFAP1 and MQXFAP2, were assembled and tested while the first pre-series...
In recent years, several Nb3Sn high field magnet prototypes have been designed and tested in preparation for the LHC Luminosity upgrade and also for the potential Future Circular Collider (FCC). We present a Microsoft Excel -based database tool for storing magnet design parameters and the results of the magnet tests. The hierarchical, yet flexible, structure of the relational database allows...
The design of Nb3Sn superconducting magnets for particle accelerators requires the evaluation of the loads applied to the conductor. It was in fact clearly shown by numerous experiments that the loads applied to Nb3Sn conducting elements can reduce their critical current, potentially compromising the magnet performances. This reduction can be reversible or not....
