Direct spectroscopic observation of charge-exchange recombination of medium-Z elements in the PLT tokamak
We report the first observation of line emission resulting directly from charge-exchange recombination of medium-Z elements (Al, Sc) injected into a PLT discharge. Transitions due to the radiative cascade immediately following charge-exchange of He-like Al and Sc were observed by a VUV spectrograph and two air monochromators. In two cases, AlXI 3209 A and ScXIX 112.1 A, the observed transition had not previously been experimentally identified. Spatial scans provided information on the profile of the neutral beam in the plasma.
- Research Organization:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Johns Hopkins Univ., Baltimore, MD (United States)
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 5207728
- Report Number(s):
- PPPL-2091; ON: DE84010227
- Country of Publication:
- United States
- Language:
- English
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