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Superconducting pulsed magnets
Lecture 1. Introduction to Superconducting Materials Type 1,2 and high temperature superconductors; their critical temperature, field & current density. Persistent screening currents and the critical state model. Lecture 2. Magnetization and AC Loss How screening currents cause irreversible magn...
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Lenguaje: | eng |
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2006
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Acceso en línea: | http://cds.cern.ch/record/932352 |
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author | Wilson, Martin N |
author_facet | Wilson, Martin N |
author_sort | Wilson, Martin N |
collection | CERN |
description | Lecture 1. Introduction to Superconducting Materials Type 1,2 and high temperature superconductors; their critical temperature, field & current density. Persistent screening currents and the critical state model. Lecture 2. Magnetization and AC Loss How screening currents cause irreversible magnetization and hysteresis loops. Field errors caused by screening currents. Flux jumping. The general formulation of ac loss in terms of magnetization. AC losses caused by screening currents. Lecture 3. Twisted Wires and Cables Filamentary composite wires and the losses caused by coupling currents between filaments, the need for twisting. Why we need cables and how the coupling currents in cables contribute more ac loss. Field errors caused by coupling currents. Lecture 4. AC Losses in Magnets, Cooling and Measurement Summary of all loss mechanisms and calculation of total losses in the magnet. The need for cooling to minimize temperature rise in a magnet. Measuring ac losses in wires and in magnets. Lecture 5. Stability and Quenching The problem of training and the consequent need for a stability margin in the conductor. The quench process, methods of calculation and quench protection schemes. |
id | cern-932352 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2006 |
record_format | invenio |
spelling | cern-9323522022-11-03T08:16:29Zhttp://cds.cern.ch/record/932352engWilson, Martin NSuperconducting pulsed magnetsElectrical EngineeringLecture 1. Introduction to Superconducting Materials Type 1,2 and high temperature superconductors; their critical temperature, field & current density. Persistent screening currents and the critical state model. Lecture 2. Magnetization and AC Loss How screening currents cause irreversible magnetization and hysteresis loops. Field errors caused by screening currents. Flux jumping. The general formulation of ac loss in terms of magnetization. AC losses caused by screening currents. Lecture 3. Twisted Wires and Cables Filamentary composite wires and the losses caused by coupling currents between filaments, the need for twisting. Why we need cables and how the coupling currents in cables contribute more ac loss. Field errors caused by coupling currents. Lecture 4. AC Losses in Magnets, Cooling and Measurement Summary of all loss mechanisms and calculation of total losses in the magnet. The need for cooling to minimize temperature rise in a magnet. Measuring ac losses in wires and in magnets. Lecture 5. Stability and Quenching The problem of training and the consequent need for a stability margin in the conductor. The quench process, methods of calculation and quench protection schemes.oai:cds.cern.ch:9323522006 |
spellingShingle | Electrical Engineering Wilson, Martin N Superconducting pulsed magnets |
title | Superconducting pulsed magnets |
title_full | Superconducting pulsed magnets |
title_fullStr | Superconducting pulsed magnets |
title_full_unstemmed | Superconducting pulsed magnets |
title_short | Superconducting pulsed magnets |
title_sort | superconducting pulsed magnets |
topic | Electrical Engineering |
url | http://cds.cern.ch/record/932352 |
work_keys_str_mv | AT wilsonmartinn superconductingpulsedmagnets |