J. Phys. IV France 11 (2001) Pr2-555-Pr2-558
Estimation of the electron temperature in a Li2C03 ablative capillary dischargeP. Vrba1, M. Vrbová2, M. Hebenstreit3, T. Neger3, P. Pöckl3, N. A. Bobrova4 and P. V. Sasorov4
1 lnstitute of Plasma Physics, AS CR, Za Slovankou 3, 18221 Prague 8, Czech Republic
2 Czech Technical University, FNSPE, Brehová 7, 11519 Prague 1, Czech Republic
3 Technische Universitaet Graz, Petersgasse 16, 8010 Graz, Austria
4 Institute of Theoretical and Experimental Physics, Bolshaya Cheremuskinskaya 25, Moscow, Russia
The electron temperature in a Li2CO3 ablative capillary discharge has been estimated on the base of soft x-ray spectral line intensity measurements and of evaluations of steady-state ionization and population fractions for the mixture of lithium, carbon and oxygen. The discrepancy in the peak temperatures, estimated from spectral measurements and calculated by one-dimensional MHD and time dependent collisional-radiative codes, is explained by an initial overheating of the plasma electrons.
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