Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autor principal: Wilson, Martin N
Lenguaje:eng
Publicado: 2006
Materias:
Acceso en línea:http://cds.cern.ch/record/932352
_version_ 1780909585766285312
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