Meny

Du är här

Quench analysis of a superconducting magnet with 98 coils connected in series

Författare:
Publiceringsår: 2003
Språk: Engelska
Sidor: 3845-3855
Publikation/Tidskrift/Serie: IEEE Transactions on Applied Superconductivity
Volym: 13
Nummer: 4
Dokumenttyp: Artikel
Förlag: IEEE

Sammanfattning

A novel insertion device for electron storage rings called the MAX-Wiggler has been constructed at MAX-lab. The MAX-Wiggler is a cold bore superconducting wiggler magnet with 47 3.5-T poles and. a period length of 61 mm aimed for the production of X-rays at the 1.5-GeV electron storage ring MAX-II at MAX-lab. The MAX-Wiggler consists of 98 racetrack coils connected in series in the superconducting magnet and the total stored magnetic energy at the nominal maximum field strength of 3.5 T is 48 U. This paper describes the quench analysis of the magnet. Several protection schemes have,been evaluated, such as an external dump resistor and safety switch or subdivision of the series of coils into sections with shunt resistors or silicon diodes in parallel to each group of coils in a section. It has been found that the most suitable protection scheme, in order to prevent the superconducting coils from getting overheated, is subdivision with a shunt path containing silicon diodes operating at liquid helium temperatures. The MAX-Wiggler has been commissioned and it has survived the quenches occurring during the initial training of the superconducting coils.

Disputation

Nyckelord

  • Physics and Astronomy
  • superconducting coils
  • quench protection
  • quench analysis
  • cold diodes
  • quench
  • superconducting magnets

Övriga

Published
Yes
  • ISSN: 1051-8223

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen