Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Magnetics and superconductivity section annual progress report for period ending December 31, 1976

Technical Report ·
DOI:https://doi.org/10.2172/7103113· OSTI ID:7103113
The Magnetics and Superconductivity Section has the responsibility for developing superconducting magnet systems for tokamak fusion machines. This is being accomplished by carrying out those research and development needs which will provide the physics understanding and engineering data necessary to design, fabricate, and test large toroidal field (TF) and poloidal field (PF) coils. This information, in addition, supports the Large Coil Program (LCP). A number of design projects have been performed, some in support of other programs and some of a continuing nature. These efforts support the goals and requirements for both the TF and PF magnet systems. Examples are the magnet designs for the EPR, Demo, EBTR, EBT-II, and preliminary scoping for the INS project. The principal effort was expended on the iteration of the EPR Reference Design. Three features of the original reference design--the honeycomb coil structure, the oval coil shape, and the forced-flow cooling of the conductor by supercritical helium--remain as key features of the TF coils. Considerable progress has been made in the theoretical understanding of forced-flow-cooled conductors, and optimized designs with maximum stability margin can be designed to meet specific applications. Experiments which will test the theory are in progress.
Research Organization:
Oak Ridge National Lab., TN (USA)
Sponsoring Organization:
US Energy Research and Development Administration (ERDA)
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
7103113
Report Number(s):
ORNL/TM-5922
Country of Publication:
United States
Language:
English