RF current drive antenna. Final report, August 15, 1993--August 14, 1995 Metadata

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  • Main Title RF current drive antenna. Final report, August 15, 1993--August 14, 1995


  • Author: Probert, P.H.
    Creator Type: Personal


  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, Washington, DC (United States)


  • Name: Wisconsin Univ., Madison, WI (United States). Dept. of Nuclear Engineering and Engineering Physics
    Place of Publication: United States


  • Creation: 1995-09-01


  • English


  • Content Description: This work represents an attempt to solve a fundamental problem with all coupling devices in tokamaks intended to launch waves in the ion cyclotron range of frequencies (ICRF), that of excessive voltage levels on the launcher and its feed lines. These voltages can lead to impurity problems in the plasma, and they determine the maximum power that can be coupled to the plasma, since it is when arcs caused by this voltage frequently occur that the power must be reduced. The approach taken is to consider an antenna which is composed of many smaller units, each operating at much lower voltages, stacked on end to provide the equivalent functionality of a conventional launcher. The work described herein involved designing, building, and operating such a launcher in the Phaedrus-T tokamak. The results showed that the antenna worked as expected, reducing the voltage dramatically, while still functioning property, and producing fewer impurity problems and no arcing. A design extrapolating the principles of this idea to reactor-sized tokamaks such as ITER was developed. In addition, a novel decoupling scheme was developed in order to adapt this antenna idea to low frequency current drive schemes.
  • Physical Description: Medium: P; Size: 40 p.


  • Keyword: Icr Heating
  • Keyword: Testing
  • Keyword: Rf Systems
  • STI Subject Categories: 70 Plasma Physics And Fusion
  • Keyword: Progress Report
  • Keyword: Non-Inductive Current Drive
  • Keyword: Phaedrus-T Tokamak
  • Keyword: Antennas


  • Other Information: PBD: Sep 1995


  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI


  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Report


  • Text


  • Other: DE96004869
  • Report No.: DOE/ER/54226--2
  • Grant Number: FG02-93ER54226;FG02-88ER53264
  • DOI: 10.2172/181525
  • Office of Scientific & Technical Information Report Number: 181525
  • Archival Resource Key: ark:/67531/metadc668932


  • Display Note: INIS; OSTI as DE96004869