title: Investigating the performance of an ion luminescence probe as a multichannel fast-ion energy spectrometer using pulse height analysis.
abstract: We investigate the capability of a fast-ion luminescent probe to operate as a pulse height ion energy analyzer. An existing high sensitivity system has been reconfigured as a single channel ion detector with an amplifier to give a bandwidth comparable to the phosphor response time. A digital pulse processing method has been developed to determine pulse heights from the detector signal so as to obtain time-resolved information on the ion energy distribution of the plasma ions lost to the wall of the TJ-II stellarator. Finally, the potential of this approach for magnetic confined fusion plasmas is evaluated by studying representative TJ-II discharges.
authors.affiliation: Laboratorio Nacional de Fusión, Asociación Euratom-CIEMAT, Madrid, Spain. b.zurro@ciemat.es
authors.forename: B
authors.initials: B
authors.lastname: Zurro
authors.forename: A
authors.initials: A
authors.lastname: Baciero
authors.forename: D
authors.initials: D
authors.lastname: Jiménez-Rey
authors.forename: L
authors.initials: L
authors.lastname: Rodríguez-Barquero
authors.forename: M T
authors.initials: MT
authors.lastname: Crespo