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Ion and electron temperatures in the Summa mirror device by emission spectroscopy

Conference ·
OSTI ID:4138393
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. (auth)
Research Organization:
National Aeronautics and Space Administration, Cleveland, Ohio (USA). Lewis Research Center
NSA Number:
NSA-33-002748
OSTI ID:
4138393
Report Number(s):
N--75-15018; NASA-TM-X--71635; E--8169; CONF-741079--18
Country of Publication:
United States
Language:
English