Ion and electron temperatures in the SUMMA mirror device by emission spectroscopy
Abstract
Ion and electron temperatures, and ion drift were measured in a superconducting magnetic mirror apparatus by observing the Doppler-broadened charge-exchange component of the 667.8 and 587.6 nanometer He lines in He plasma, and the H sub alpha and H sub beta lines in H2 plasma. The second moment of the line profiles was used as the parameter for determining ion temperature. Corrections for magnetic splitting, fine structure, monochromator slit function, and variation in charge-exchange cross section with energy are included. Electron temperatures were measured by the line ratio method for the corona model, and correlations of ion and electron temperatures with plasma parameters are presented.
- Publication:
-
Presented at 16th Ann. Meeting of the Plasma Phys. Div. of the Am. Phys. Soc
- Pub Date:
- 1974
- Bibcode:
- 1974aps..meetR..28P
- Keywords:
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- Electron Energy;
- Ion Temperature;
- Magnetic Mirrors;
- Optical Emission Spectroscopy;
- Superconducting Magnets;
- Charge Exchange;
- Doppler Effect;
- Fine Structure;
- Monochromators;
- Instrumentation and Photography