Investigation of HHFW and NBI combined heating in NSTX

  • B. P. Leblanc
  • , R. E. Bell
  • , S. Bernabei
  • , T. M. Biewer
  • , J. C. Hosea
  • , J. R. Wilson

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

A series of experiments was conducted to investigate the combined utilization of HHFW and NBI auxiliary heating in NSTX plasmas. A modest increase of the total stored energy coincident with a near doubling of the neutron production rate is observed when NBI heating is added to HHFW in L-mode plasmas. An increase in the core electron temperature is also observed. On the other hand, essentially no stored energy augmentation nor neutron production rate enhancement is observed when applying HHFW during the "H" phase of NBI driven H-mode plasmas. Spectroscopic measurements of the edge carbon line radiation indicate an unpredicted ion temperature increase, suggesting that edge effects are reducing the amount of HHFW power reaching the plasma core.

Original languageEnglish
Title of host publicationRADIO FREQUENCY POWER IN PLASMAS
Subtitle of host publication16th Topical Conference on Radio Frequency Power in Plasmas
Pages86-89
Number of pages4
DOIs
StatePublished - Sep 26 2005
Externally publishedYes
EventRADIO FREQUENCY POWER IN PLASMAS: 16th Topical Conference on Radio Frequency Power in Plasmas - Park City, UT, United States
Duration: Apr 11 2005Apr 13 2005

Publication series

NameAIP Conference Proceedings
Volume787
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceRADIO FREQUENCY POWER IN PLASMAS: 16th Topical Conference on Radio Frequency Power in Plasmas
Country/TerritoryUnited States
CityPark City, UT
Period04/11/0504/13/05

Keywords

  • NSTX HHFW NBI

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