2020-08-312020-08-312008-09Jiménez Rey, D., Zurro, B., Guasp, P., Liniers, M., Baciero, A. y García Muñoz, M. (2008). A flexible luminescent probe to monitor fast ion losses at the edge of the TJ-II stellarator. Review of Scientific Instruments, 79 (9), 093511-1-093511-9.0034-6748https://hdl.handle.net/11441/100577A mobile luminescent probe has been developed to detect fast ion losses and suprathermal ions escaping from the plasma of the TJ-II stellarator device. The priorities for its design have been flexibility for probe positioning, ease of maintenance, and detector sensitivity. It employs a coherent fiber bundle to relay, to the outside of the vacuum chamber, ionoluminescence images produced by the ions that impinge, after entering the detector head through a pinhole aperture, onto a screen of luminescent material. Ionoluminescence light detection is accomplished by a charge-coupled device camera and by a photomultiplier, both of which are optically coupled to the in-vacuum fiber bundle head by means of a standard optical setup. A detailed description of the detector, and the first results obtained when operated close to the plasma edge, are reported.application/pdf10 p.engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess10.1063/1.2979013