Title :
Stability and training of a high field superconducting wiggler
Author :
Eriksson, J.T. ; Kettunen, L. ; Mikkonen, R. ; Soderlund, L. ; Collan, H. ; Hjelt, K.
Author_Institution :
Lab. of Electr. & Magnetism, Tampere Univ. of Technol., Finland
fDate :
3/1/1993 12:00:00 AM
Abstract :
A three pole superconducting wiggler with six racetrack NbTi coils kept together by iron yokes has been constructed and tested. The high field wiggler will provide photons of high intensity, high photon flux, and high degree of circular polarization with a beam life time of 10 h. The authors give an overview of the training procedure of the wet layer impregnated magnet. The tests indicated an obvious improvement of the critical current by training, although an excessive number of quenches were required. Quench analysis and some other cryogenics are also included in the discussion. Measurements are compared to the calculated values.<>
Keywords :
critical currents; superconducting magnets; synchrotron radiation; type II superconductors; wigglers; Fe yoke; NbTi; circular polarization; critical current; cryogenics; high field superconducting wiggler; high photon flux; quench analysis; racetrack coils; three pole superconducting wiggler; training procedure; wet layer impregnated magnet; Iron; Magnetic flux; Niobium compounds; Polarization; Stability; Superconducting coils; Superconducting magnets; Testing; Titanium compounds; Undulators;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
