Field Quality Optimization in a Common Coil Magnet Design

Table of Contents

Challenge for the Next Collider 

Very Large Hadron Collider (VLHC)

Common Coil Design (The Original Concept)

Why Don’t We Have More Racetrack Coil Magnets?

Geometric Harmonics

A Few Possible Configurations for Auxiliary Coils

Saturation Induced Harmonics

Optimized Yoke

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

Design Optimization Strategies for End Harmonics (3-d)

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

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

PPT Slide

Recap on Cost Saving Possibilities for VLHC

CONCLUSIONS

Email: gupta@bnl.gov

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

Other information:
Talk given at MT16 on 9/26-10/2/1999 

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