Microwave imaging reflectometer for TEXTOR (invited) Journal Article uri icon



  • Understanding the behavior of fluctuations in magnetically confined plasmas is essential to the advancement of turbulence-based transport physics. Though microwave reflectometry has proven to be an extremely useful and sensitive tool for measuring small density fluctuations in some circumstances, this technique has been shown to have limited viability for large amplitude, high kθ fluctuations and/or core measurements. To this end, a new instrument based on two-dimensional imaging reflectometry has been developed to measure density fluctuations over an extended plasma region in the TEXTOR tokamak. This technique is made possible by collecting an extended spectrum of reflected waves with large-aperture imaging optics. Details of the imaging reflectometry concept, as well as technical details of the TEXTOR instrument, are presented. Data from proof-of-principle experiments on TEXTOR using a prototype system is presented, as well as results from a systematic off-line study of the advantages and limitations of the imaging reflectometer.

publication date

  • March 1, 2003

has restriction

  • green

Date in CU Experts

  • February 19, 2015 3:08 AM

Full Author List

  • Munsat T; Mazzucato E; Park H; Deng BH; Domier CW; Luhmann NC; Wang J; Xia ZG; Donné AJH; van de Pol M

author count

  • 10

Other Profiles

International Standard Serial Number (ISSN)

  • 0034-6748

Electronic International Standard Serial Number (EISSN)

  • 1089-7623

Additional Document Info

start page

  • 1426

end page

  • 1432


  • 74


  • 3