Observation of lines above 2000 Å in O VIII and C VI in the Princeton Large Torus due to charge-exchange processes: Diagnostic applications
- 1 August 1984
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 45 (3), 236-238
- https://doi.org/10.1063/1.95195
Abstract
Hydrogenlike oxygen and carbon lines from transitions (Δn=1) between levels of high principal quantum number n, with wavelengths above 2000 Å have been observed. Observations of such transitions were possible due to charge‐exchange processes during neutral beam injection of hydrogen atoms into the Princeton Large Torus tokamak. The lines are O VIII 2976 Å (8–7 transitions), C VI 3434 Å (7–6), and C VI 5291 Å (8–7). Application of these lines for ion temperature measurements and initial observations of neutral beam vertical distributions in the plasma are presented.Keywords
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