Determination of ion temperatures from Zeeman broadened spectral lines in the edge of Tore Supra
- Oak Ridge National Lab., TN (United States). Fusion Energy Div.
- Association EURATOM-CEA sur la Fusion Controlee, St-Paul-lez-Durance (France). Centre d`Etudes de Cadarache
The authors have examined a {sup 3}P {yields} {sup 3}S multiplet of C III in Tore Supra in order to assess the possibility of determining the ion temperatures from transitions where the Zeeman effect cannot be neglected compared to the Doppler broadening. The preliminary studies lead them to believe that with good quality data the temperatures can be determined within about 20% in the 20--30 eV range and within about 50% in the neighborhood of 5 eV by fitting the entire multiplet rather than a semi-isolated feature, even though certain parameters important for the analysis, such as polarization effects of the optics, are not well characterized. In order to quantify these conclusions more precisely, future work will concentrate on developing numerical fitting routines and on examining the validity of the assumption that the distribution function for low ionization stages is Maxwellian.
- Research Organization:
- Oak Ridge National Lab., TN (United States); Princeton Univ., NJ (United States). Plasma Physics Lab.
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400; AC02-76CH03073
- OSTI ID:
- 10178792
- Report Number(s):
- CONF-940635-12; ON: DE94018112; TRN: 94:016755
- Resource Relation:
- Conference: European conference on controlled fusion and plasma physics,Marseilles (France),26 Jun - 1 Jul 1994; Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
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