Alternate High Field Magnet Designs for Future Accelerators

Ramesh Gupta, Brookhaven National Laboratory

(A part of the course given at US Particle Accelerator School at Stony Brook, NY in June 2000)

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Table of Contents

Alternate High Field Magnet Designs for Future Accelerators

VLHC: The Challenge is the Cost

Present Magnet Design and Technology

The Basic Guiding Principles for An Innovative R&D Program

High Field Magnets and High Temperature Superconductors (HTS)

High Field Magnets and High Temperature Superconductors (HTS)

High Temperature Superconductors (HTS) in Accelerator Magnets

Common Coil Design (The Basic Concept)

Field Lines at 15 T in a Common Coil Magnet Design

Investigations for Very High Fields (to probe the limit of technology)

How Does a Common Coil Magnet Look?

Common Coil Design in Handling Large Lorentz Forces in High Field Magnets

Progress in Field Quality Geometric Harmonics

Progress in Field Quality Saturation-induced Harmonics

Field Quality Optimization in the Common Coil Design (Magnet Ends)

An Example of End Optimization with ROXIE (iron not included)

Persistent Current-induced Harmonics (may be a problem in Nb3Sn magnets, if done nothing)

Persistent Current-induced Harmonics Traditional solution: work on the superconductor

PPT Slide

Possibility of Removing the Second Largest Machine (HEB) from the vlhc complex 

Common Coil Magnet System (Estimated cost savings by eliminating HEB)

Advantages of Common Coil Magnet System with 4 Apertures (2-in-1 Accelerator)

Magnet Aperture: MT and AP Issues

PPT Slide

A Combined Function Magnet Option (Estimated cost savings for VLHC)

A Possible Low-cost Magnet Manufacturing Process

Recap on Cost Saving Possibilities in VLHC

Performance of the First magnet Based on the Common Coil Design

On To A High Field Common Coil Magnet

RT-1 Quench History

Common Coil Work at BNL- Phase I

Summary of Common Coil Magnet Work at Various National Labs

A Possible Application of High Field Magnet Program URHIC: Ultra Relativistic Heavy Ion Collider in RHIC Tunnel

Dipole for n Storage Ring

Possible Extension of Neutrino Storage Ring Dipole for Higher Energy Muon Collider Storage Ring

Muon Collider Racetrack Dipole Design (15 T, Nb3Sn and 10-5 Field Quality)

Advantages of HTS

Improvements in HTS Technology And Challenges for Magnet Design

HTS Common Coil Program

Life of 10-turn Coil Program After 12.5 T Magnet

HTS in a Hybrid Magnet

Hybrid Common Coil Magnet at BNL 

Uses of Smaller R&D Funding to Labs and Industries for a Collaborative and Innovative Magnet Research 

What can one study with these modules

Summary

Author: Ramesh Gupta

Email: gupta@bnl.gov

Home Page: http://www.bnl.gov/magnets/staff/gupta/

Other information: Presented at the US Particle Accelerator School, at Stony Brook, NY in June 2000. Most of the course was given by Dr. P. Schmuser. 

Website of US Particle Accelerator School (USPAS):
http://uspas.fnal.gov/ 

Download or view higher resolution PDF presentation (2.4 MB)