Optical Layout and alignment methods for visible tomography and emission spectroscopy diagnostics in SPIDER

Rita Sabrina Delogu, Matteo Brombin, Barbara Zaniol, Matteo Agostini, Marco Barbisan, Nicola Fonnesu, Marco Tollin, Roberto Pasqualotto

Research output: Contribution to journalArticle

Abstract

SPIDER, a prototype negative ion source with low voltage extraction for the ITER neutral beam injector will be equipped with a set of diagnostics to qualify and optimize the neutral beam for ITER. In particular, the visible tomography diagnostic will estimate the uniformity of the beam using a set of linear charge-coupled device cameras, while emission spectroscopy will measure the spatial variation of plasma parameters in the RF plasma source and evaluate the divergence of the extracted beam, analyzing the spectrum collected over multiple lines of sight (LOS). This paper presents the optical layout of the LOS and detection heads of tomography and spectroscopy and the required accuracy in their alignment, proposing also alignment criteria. © 1973-2012 IEEE.
Original languageEnglish
Article number6827294
Pages (from-to)1802 - 1806
Number of pages5
JournalIEEE Transactions on Plasma Science
Volume42
Issue number6
DOIs
Publication statusPublished - 2014
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Delogu, R. S., Brombin, M., Zaniol, B., Agostini, M., Barbisan, M., Fonnesu, N., ... Pasqualotto, R. (2014). Optical Layout and alignment methods for visible tomography and emission spectroscopy diagnostics in SPIDER. IEEE Transactions on Plasma Science, 42(6), 1802 - 1806. [6827294]. https://doi.org/10.1109/TPS.2014.2320369