Conceptual design of 20 T dipoles for high-energy LHC

  title={Conceptual design of 20 T dipoles for high-energy LHC},
  author={Lucio Rossi and Ezio Todesco},
Availability of 20 T operational field dipole magnets would open the way for a 16.5 TeV beam energy accelerator in the LHC tunnel. Here we discuss the main issues related to the magnet design of this extremely challenging dipole: main constraints, superconductor choice, coil lay-out, iron, forces and stresses, and field quality. A tentative cost estimate is also given. The present technology, based on Nb-Ti and now near to be extended to Nb3Sn superconductor, would allow reaching 15 T… 


The High-Energy LHC (HE-LHC) will be a new accelerator in the LHC tunnel based on novel dipole magnets, with a field up to 20 T, which are proposed to be realized by a hybrid-coil design, comprising

Towards 20 T Hybrid Accelerator Dipole Magnets

The most effective way to achieve very high collision energies in a circular particle accelerator is to maximize the field strength of the main bending dipoles. In dipole magnets using Nb-Ti

Limits to High Field Magnets for Particle Accelerators

What is the ultimate limit to high fields in superconducting magnets for particle accelerators? In this paper we review the present status of the technology, outlining the main limitations. We first

HTS Accelerator Magnet and Conductor Development in Europe

In view of the preparation for a post-LHC collider, in 2010 the high-energy physics (HEP) community started to discuss various options, including the use of HTS for very high-field dipoles.

Toward REBCO 20 T+ Dipoles for Accelerators

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

The EuCARD2 Future Magnets Program for Particle Accelerator High-Field Dipoles: Review of Results and Next Steps

The EuCARD2 collaboration aims at the development of a 10 kA-class superconducting, high current density cable suitable for accelerator magnets, to be tested in small coils and magnets capable to

The EuCARD-2 Future Magnets European Collaboration for Accelerator-Quality HTS Magnets

EuCARD-2 is a project supported by FP7-European Commission that includes, inter alia, a work-package (WP10) called “Future Magnets.” This project is part of the long term development that CERN is

A Fast 10-kA Current Switch for High-Temperature Superconductor Accelerator Magnets

The National Institute for Nuclear Physics developed at the Laboratory of Accelerators and Applied Superconductivity (LASA) (Milano, Italy) a fast current switch in the framework of the EuCARD-2

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Two injector accelerator options for HE-LHC of p+ - p+ collisions at 33 TeV cms energy are briefly outlined. One option is based on the Super-SPS (S-SPS) [1] accelerator in the SPS tunnel, and the

Layout Study for the Dipole Magnets of the Future Circular Collider Using Nb-Ti and Nb3Sn

With the Large Hadron Collider (LHC) up and running, studies have started for its successor. Under study is the Future Circular Collider (FCC), which has a circumference of about 100 km, aiming at a



On the Feasibility of a Tripler Upgrade for LHC

There is no obvious upper limit to the field that could be attained for the dipoles of future hadron colliders, but a 24 Tesla dual dipole using this design offers the possibility of an LHC tripler.

Field Quality Measurements and Analysis of the LARP Technology Quadrupole Models

One of the US-LHC accelerator research program goals is to develop and prove the design and technology of quadrupoles for an upgrade of the LHC Interaction Region (IR) inner triplets. Four 1-m long

Superconducting magnets for the LHC main lattice

  • L. Rossi
  • Physics
    IEEE Transactions on Applied Superconductivity
  • 2004
The main lattice of the Large Hadron Collider (LHC) employs about 1600 main magnets and more than 4000 corrector magnets. All superconducting and working in pressurized superfluid helium bath, these

Magnetic Field Properties of Fermilab Energy Saver Dipoles

At Fermilab we have operated a production line for the fabrication of 901 21 foot long superconducting dipoles for use in the Energy Saver/Doubler. At any one time 772 of these dipoles are installed

A novel idea for coil collar structures in accelerator superconducting magnets

The dipoles for several different machines (LHC, SSC, HERA) were designed using nonmagnetic metallic collars to contain the superconducting coils. The coils are of two types, main and floating. This

Superconducting magnet system for HERA

The HERA accelerator facility consists of independent accelerators designed to store respectively 820-GeV protons and 30-GeV electrons. The two counterrotating beams collide head on in up to four

LHC Luminosity and energy upgrade : A Feasibility Study

We discuss a possible staged upgrade of the LHC and of its injectors, with a view to increasing the luminosity from the nominal 1034 cm 2 s 1 to 1035 cm 2 s 1 in each of the two high-luminosity

Test Results for a High Field (13T) Nb3Sn Dipole

A Nb{sub 3}Sn dipole magnet (D20) has been designed, constructed, and tested at LBNL. Previously, they had reported test results from a hybrid design dipole which contained a similar inner Nb{sub

Final Development and Test Preparation of the First 3.7 m Long Nb3Sn Quadrupole by LARP

The test of the first LARP (LHC Accelerator Research Program) Long Quadrupole is a significant milestone toward the development of Nb3Sn quadrupoles for LHC (Large Hadron Collider) Luminosity

Common coil magnet system for VLHC

  • R. Gupta
  • Physics
    Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)
  • 1999
This paper introduces the common coil magnet system for the proposed Very Large Hadron Collider (VLHC). In this system, the high energy booster (HEB), the injector to VLHC, is integrated as the iron