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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 plus a single toroidal view) multichannel spectroscopic diagnostic, incorporating fiber arrays, an f/1.8 spectrograph, and a back-illuminated charge-coupled device, is installed to obtain Doppler line shifts and widths (around 529.2 nm) with ~1 cm spatial resolution for CXRS. | 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 plus a single toroidal view) multichannel spectroscopic diagnostic, incorporating fiber arrays, an f/1.8 spectrograph, and a back-illuminated charge-coupled device, is installed to obtain Doppler line shifts and widths (around 529.2 nm) with ~1 cm spatial resolution for CXRS. | ||
<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>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>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> | <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> or wavelength separations. | ||
The Diagnostic Neutral Beam Injector is also used for Motional Stark Effect measurements to quantify the magnitude and pitch of components of the magnetic field<ref>K. J. McCarthy, N. Panadero, A. López-Fraguas, J. Hernández, and B. van Milligen, ''A Spectrally Resolved Motional Stark Effect Diagnostic for the TJ-II Stellarator'', [[doi:10.1002/ctpp.201400067|Contrib. Plasma Phys. 55, No. 6 (2015) 459]]</ref>. | The Diagnostic Neutral Beam Injector is also used for Motional Stark Effect measurements to quantify the magnitude and pitch of components of the magnetic field<ref>K. J. McCarthy, N. Panadero, A. López-Fraguas, J. Hernández, and B. van Milligen, ''A Spectrally Resolved Motional Stark Effect Diagnostic for the TJ-II Stellarator'', [[doi:10.1002/ctpp.201400067|Contrib. Plasma Phys. 55, No. 6 (2015) 459]]</ref>. |
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