@inproceedings{286f72d11bd242298b5041a59da94be7,
title = "Validating the lower hybrid interdigital-line antenna on MST",
abstract = "Lower hybrid current drive has been posited as a means to reduce tearing fluctuations and improve confinement in the reversed field pinch. The third generation interdigital-line antenna has been installed in MST and preliminary testing has been completed. Source power to the antenna has been increased to >220kW in both feed directions. Under vacuum conditions the n ∥ spectrum is peaked at ∼7.5 as expected with excellent directionality. External tuning gives a VSWR <1.3 under most operating conditions; however, power diagnostics on the resonators show a standing wave on the antenna which could affect launch spectrum. Initial plasma parameter surveys show behavior similar to the previous generation antenna. Hard x-ray detectors show flux is toroidally peaked, but still indicative of rf-plasma interaction.",
keywords = "Antenna, Interdigital, LHRF, MST, RFP",
author = "Kaufman, {M. C.} and Goetz, {J. A.} and Burke, {D. R.} and Almagri, {A. F.} and Oliva, {S. P.} and Kulpin, {J. G.}",
year = "2007",
doi = "10.1063/1.2800500",
language = "English",
isbn = "0735404445",
series = "AIP Conference Proceedings",
pages = "309--312",
booktitle = "RADIO FREQUENCY POWER IN PLASMAS",
note = "17th Topical Conference on Radio Frequency Power in Plasmas ; Conference date: 07-05-2007 Through 09-05-2007",
}