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Title: Modular Coil Design Developments for the National Compact Stellarator Experiment (NCSX)

Abstract

The National Compact Stellarator Experiment (NCSX) is a quasi-axisymmetric facility that combines the high beta and good confinement features of an advanced tokamak with the low current, disruption-free characteristics of a stellarator. The experiment is based on a three field-period plasma configuration with an average major radius of 1.4 m, a minor radius of 0.3m, and a toroidal magnetic field on axis of up to 2 T. The modular coils are set in a complex assembly of four coil systems that surround the highly shaped plasma. There are six each of three coil types in the assembly for a total of 18 modular coils. The coils are constructed by winding copper cable onto a cast stainless steel winding form that has been machined to high accuracy, so that the current center of the winding pack is within 1.5 mm of its theoretical position. The modular coils operate at a temperature of 80K and are subjected to rapid heating and stress during a pulse. At this time, the project has completed construction of several prototype components which validate the fabrication and inspection processes that are planned for the production coils. In addition, some advanced techniques for error-field compensation and assembly simulationmore » using computer-aided design (CAD) have been developed.« less

Authors:
 [1];  [2];  [2];  [2];  [1];  [2];  [1];  [1];  [1];  [2];  [3];  [3];  [4];  [1];  [2];  [1]
  1. ORNL
  2. Princeton Plasma Physics Laboratory (PPPL)
  3. MK Technologies, Knoxville, TN
  4. Myatt Consulting, Norfolk, MA
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1128947
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: 23rd Symposium on Fusion Technology (SOFT-23), Venice, Italy, 20040920, 20040924
Country of Publication:
United States
Language:
English
Subject:
NCSX

Citation Formats

Williamson, David E, Brooks, A., Brown, T., Chrzanowski, J., Cole, Michael J, Fan, H-M., Freudenberg, Kevin D, Fogarty, Paul J, Hargrove, Tom, Heitzenroeder, P., Lovett, G., Miller, P., Myatt, R., Nelson, Brad E, Reiersen, W., and Strickler, Dennis J. Modular Coil Design Developments for the National Compact Stellarator Experiment (NCSX). United States: N. p., 2005. Web.
Williamson, David E, Brooks, A., Brown, T., Chrzanowski, J., Cole, Michael J, Fan, H-M., Freudenberg, Kevin D, Fogarty, Paul J, Hargrove, Tom, Heitzenroeder, P., Lovett, G., Miller, P., Myatt, R., Nelson, Brad E, Reiersen, W., & Strickler, Dennis J. Modular Coil Design Developments for the National Compact Stellarator Experiment (NCSX). United States.
Williamson, David E, Brooks, A., Brown, T., Chrzanowski, J., Cole, Michael J, Fan, H-M., Freudenberg, Kevin D, Fogarty, Paul J, Hargrove, Tom, Heitzenroeder, P., Lovett, G., Miller, P., Myatt, R., Nelson, Brad E, Reiersen, W., and Strickler, Dennis J. Sat . "Modular Coil Design Developments for the National Compact Stellarator Experiment (NCSX)". United States.
@article{osti_1128947,
title = {Modular Coil Design Developments for the National Compact Stellarator Experiment (NCSX)},
author = {Williamson, David E and Brooks, A. and Brown, T. and Chrzanowski, J. and Cole, Michael J and Fan, H-M. and Freudenberg, Kevin D and Fogarty, Paul J and Hargrove, Tom and Heitzenroeder, P. and Lovett, G. and Miller, P. and Myatt, R. and Nelson, Brad E and Reiersen, W. and Strickler, Dennis J},
abstractNote = {The National Compact Stellarator Experiment (NCSX) is a quasi-axisymmetric facility that combines the high beta and good confinement features of an advanced tokamak with the low current, disruption-free characteristics of a stellarator. The experiment is based on a three field-period plasma configuration with an average major radius of 1.4 m, a minor radius of 0.3m, and a toroidal magnetic field on axis of up to 2 T. The modular coils are set in a complex assembly of four coil systems that surround the highly shaped plasma. There are six each of three coil types in the assembly for a total of 18 modular coils. The coils are constructed by winding copper cable onto a cast stainless steel winding form that has been machined to high accuracy, so that the current center of the winding pack is within 1.5 mm of its theoretical position. The modular coils operate at a temperature of 80K and are subjected to rapid heating and stress during a pulse. At this time, the project has completed construction of several prototype components which validate the fabrication and inspection processes that are planned for the production coils. In addition, some advanced techniques for error-field compensation and assembly simulation using computer-aided design (CAD) have been developed.},
doi = {},
url = {https://www.osti.gov/biblio/1128947}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {1}
}

Conference:
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