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TJ-II:Diagnostic neutral beam: Difference between revisions
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[[File:TJ-II DNBI.jpg|500px|thumb|right|Diagram of the TJ-II Diagnostic Neutral Beam Injector ]] | [[File:TJ-II DNBI.jpg|500px|thumb|right|Diagram of the TJ-II Diagnostic Neutral Beam Injector ]] | ||
[[TJ-II]] has a compact diagnostic neutral beam injector, designed for performing spatially resolved charge exchange recombination spectroscopy and neutral particle analysis measurements. It is located in [[TJ-II:Sectors|sector]] A7 and it is currently employed to obtain radial profiles of impurity ion (carbon) temperature and velocity. | [[TJ-II]] has a compact diagnostic neutral beam injector, designed for performing spatially resolved charge exchange recombination spectroscopy and neutral particle analysis measurements. It is located in [[TJ-II:Sectors|sector]] A7 and it is currently employed to obtain radial profiles of impurity ion (carbon) temperature and velocity. | ||
<ref> | <ref>K.J. McCarthy et al, ''Diagnostic neutral beam injector and associated diagnostic systems for the TJ-II stellarator device'', [[doi:10.1063/1.1784512|Rev. Sci. Instrum. '''75''', 3499 (2004)]]</ref> | ||
The injector, an upgraded DINA-5 model, is supported on a mobile cradle that permits its path through the plasma to be varied by ±3° poloidally. In parallel, a dedicated bidirectional (two vertical opposing views) multichannel spectroscopic diagnostic, incorporating fiber arrays, an f/1.8 spectrograph, and a back-illuminated charge-coupled device, has been installed to obtain Doppler line shifts and widths (around 529.2 nm) with ~1 cm spatial resolution. | The injector, an upgraded DINA-5 model, is supported on a mobile cradle that permits its path through the plasma to be varied by ±3° poloidally. In parallel, a dedicated bidirectional (two vertical opposing views) multichannel spectroscopic diagnostic, incorporating fiber arrays, an f/1.8 spectrograph, and a back-illuminated charge-coupled device, has been installed to obtain Doppler line shifts and widths (around 529.2 nm) with ~1 cm spatial resolution. | ||
<ref> | <ref>J.M. Carmona et al, ''Charge-exchange spectroscopic diagnostic for the TJ-II stellarator'', [[doi:10.1063/1.2229200|Rev. Sci. Instrum. '''77''', 10F107 (2006)]]</ref> | ||
<ref> | <ref>J.M. Carmona et al, ''Density Dependence of Ion Temperature Measured by Active Charge-Exchange Spectroscopy in ECRH Plasmas of the TJ-II Stellarator'', [http://www.new.ans.org/store/j_1911 Fusion Science and Technology '''54''', 4 (2008) 962-969]</ref> | ||
== See also == | == See also == | ||