Scheduled System Maintenance:
Some services will be unavailable Sunday, March 29th through Monday, March 30th. We apologize for the inconvenience.
By Topic

Superconducting poloidal coils for the reacting plasma project-test results of a model coil (RPC-I) at a 200 T/sec pulsing rate and design of a new coil (RPC-II)

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

12 Author(s)
Satow, T. ; Mitsubishi Electric Corporation, Hyogo-ku, Kobe, Japan ; Iwamoto, M. ; Toyoda, K. ; Ogasawara, T.
more authors

A model pulse coil with a stored energy of 0.45 MJ at 6 T has been built and tested in order to meet the requirements of superconducting poloidal coils of a medium size tokamak of the Reacting Plasma Project. The inner and outer diameters of the coil (RPC-I) are 19.0 and 46.8 cm, respectively, with an axial length of 41.4 cm. The pulsing test was performed by a condenser discharge method with a clamp circuit. By applying a terminal voltage of 7.0 kV, the coil was charged up to 3.84 T in 26 msec and discharged to zero with a time constant of 100 msec. The average and maximum of pulsing rates in charge-up period were 147 T/sec and 231 T/sec, respectively. The associated a.c. loss per pulse was approximately 1 kJ which was only 0.57 % of the energy stored in the coil. These results have shown for the first time the scientific feasibility of superconducting pulse coils with a pulsing rate of about 200 T/sec. As the next step, we are constructing a new coil (RPC-II) with a winding composed of wider helium cooling channels and insulation sheets between layers.

Published in:

Magnetics, IEEE Transactions on  (Volume:19 ,  Issue: 3 )