Ion Temperature Measurements in JET Boundary Plasmas Using a Retarding Field Analyser

• DOI: 10.1002/ctpp.19960360113
• Publication Date: 2010-11-30T14:18:54Z
• Authors: H. Y. Guo; G. F. Matthews; S. J. Davies; S. K. Erents; L. D. Horton; R. D. Monk; P. C. Stangeby
• Keywords: Langmuir Probe; Analyser; Reciprocating motion

A retarding field analyser (RFA) mounted on one of the JET reciprocating probe drives has been used to measure ion temperature in boundary plasma. This paper describes design RFA and special requirements for energy analysis. The first results are presented, together with simulations by DIVIMP code using measurements Langmuir probes at divertor plates as input "Onion-Skin" plasma model.