MoI density measurements by laser induced fluorescence spectroscopy

F. Orsitto, M. Borra, F. Coppotelli, G. Gatti, E. Neri

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Abstract

The density of molybdenum atoms produced by sputtering of a TZM (molybdenum) target by [formula omitted] ions is measured by laser induced fluorescence (LIF) using tunable dye laser. The excitation transition involved is [formula omitted] at 345.64 nm, while the fluorescence signal is from the decay [formula omitted] at 550.6 nm. The LIF measurements are carried out by varying the laser power incident on Mo atoms by means of neutral density filters. An absolute calibration of the detection system together with the realization of a well defined optical probe volume allows for the determination of the density of the emitting atoms. An evaluation of LIF diagnostic performance on Frascati Tokamak upgrade put a lower limit of [formula omitted] on the detectable local density of MoI close to the toroidal limiter. © 1999, American Institute of Physics. All rights reserved.
Original languageEnglish
Pages (from-to)921 - 924
Number of pages4
JournalReview of Scientific Instruments
Volume70
Issue number1
DOIs
Publication statusPublished - 1999
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Instrumentation

Cite this

Orsitto, F., Borra, M., Coppotelli, F., Gatti, G., & Neri, E. (1999). MoI density measurements by laser induced fluorescence spectroscopy. Review of Scientific Instruments, 70(1), 921 - 924. https://doi.org/10.1063/1.1149440