Ion cyclotron radio frequency systems and performance on the tandem mirror experiment-upgrade (TMX-U)

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High power ion cyclotron radio frequency (ICRF) systems are now gaining greater attention than before as prime driver ion heating systems. Lawrence Livermore National Laboratory (LLNL) has installed a 200 kW high frequency (HF) transmitter system on its Tandem Mirror Experiment-Upgrade (TMX-U). This paper describes the system, antenna, controls, and monitoring apparatus. The transmitter operates into a high Q antenna installed in the central cell region of the experiment. It incorporates a dual-port feedback system to automatically adjust the transmitter's output power and allow the maximum consistent with the plasma loading of the antenna. Special techniques have been used to ... continued below

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Pages: 5

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Moore, T.L.; Molvik, A.W.; Cummins, W.F.; Pedrotti, L.R.; Henderson, A.L.; Karsner, P.G. et al. December 1, 1983.

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Description

High power ion cyclotron radio frequency (ICRF) systems are now gaining greater attention than before as prime driver ion heating systems. Lawrence Livermore National Laboratory (LLNL) has installed a 200 kW high frequency (HF) transmitter system on its Tandem Mirror Experiment-Upgrade (TMX-U). This paper describes the system, antenna, controls, and monitoring apparatus. The transmitter operates into a high Q antenna installed in the central cell region of the experiment. It incorporates a dual-port feedback system to automatically adjust the transmitter's output power and allow the maximum consistent with the plasma loading of the antenna. Special techniques have been used to measure, in real-time, the dynamically changing loading values presented by the plasma. From the measurements, the antenna impedance can be optimized for specified plasma density.

Physical Description

Pages: 5

Notes

NTIS, PC A02/MF A01.

Source

  • 10. symposium on fusion engineering, Philadelphia, PA, USA, 5 Dec 1983

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  • Other: DE84009108
  • Report No.: UCRL-89240
  • Report No.: CONF-831203-129
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 5167471
  • Archival Resource Key: ark:/67531/metadc1057353

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  • December 1, 1983

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 31, 2018, 4:13 p.m.

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Moore, T.L.; Molvik, A.W.; Cummins, W.F.; Pedrotti, L.R.; Henderson, A.L.; Karsner, P.G. et al. Ion cyclotron radio frequency systems and performance on the tandem mirror experiment-upgrade (TMX-U), article, December 1, 1983; California. (https://digital.library.unt.edu/ark:/67531/metadc1057353/: accessed March 23, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.