R&D for Accelerator Magnets With React & Wind High Temperature Superconductors

Ramesh Gupta, Superconducting Magnet Division, BNL, 10/27/01

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Table of Contents (click to view a particular slide):

R&D for Accelerator Magnets With React & Wind High Temperature Superconductors

Overview of the Presentation

BSCCO Wire (Year 2000)

Expected Performance of HTS-based Magnets 

Measured Performance of HTS Cable and Tape As A Function of Field at BNL

Advantages of using HTS in Accelerator Magnets

Challenges with HTS

HTS and HEP

First Likely Application of HTS: Interaction Region (IR) Magnets 

Why Start HTS Magnet R&D Now? 

BNL Magnet R&D Program & Philosophy: Exploring an Alternate Direction to Future

Design Issues for High Field Accelerator Magnets using HTS

Common Coil Design

Common Coil Design to Handle Large Lorentz Forces in High Field Magnets

Field Quality: Small Geometric Harmonics

Field Quality: Small Saturation-induced Harmonics

Field Quality: Small Harmonics in Ends

Field Quality: Persistent Current Induced Harmonics in HTS Coil

Status of R&D on Common Coil Magnets

Magnet Design for n Factory 

VLHC-2 Interaction Region Magnet Design (Preliminary) 

HTS Magnet R&D and Test Program at BNL

Common Coil Magnets With HTS Tape (Field quality in 74 mm aperture to be measured soon)

HTS Cable Magnet Program

HTS Coil Wound by Hand

The Bobbin and the 10-turn Coil

10-turn Coil Being Prepared for Vacuum Impregnation

Vacuum Impregnation Setup

Vacuum Impregnated Coils

Voltage Taps, etc.

HTS Coils in Support Structure 

Common Coil and Muon Collider Test Configurations

Common Coil Magnets With HTS Cable

4K Performance of 1st Common Coil HTS Magnet

Performance of Coil #1 and Coil #2 in Common Coil Test Configuration

HTS Coil Test Magnet #2

Magnet DCC006: 2nd HTS Dipole (Magnet No. 6 in the common coil cable magnet series)

Critical Current in Mixed Strand Cable

Performance of 2 Coils in Muon Collider Dipole Configuration 

Measured Ic of Various Turns

Measured Critical Current as a Function of Temperature

Field Quality Measurements

Field Quality Measurements

HTS in a Hybrid Magnet

Near Term R&D Program at BNL

SUMMARY

Author: Ramesh Gupta, Brookhaven National Laboratory, USA

Email: gupta@bnl.gov

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

Other information:
An invited talk given at the 17th International Conference on Magnet Technology (MT17) in Geneva, Switzerland from Sept. 24, 2001 to Sept. 28, 2001. 

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Download or view PDF presentation (2.6 MB) 

MT17 PAPER (PDF:0.7 MB)

MT17 PAPER on IR Magnets (PDF:0.5 MB)