ENERGY LOSSES IN NORMAL FT (FRASCATI TOKAMAK) DISCHARGES
A systematic analysis of the temperature increase of the limiter and wall in FT has been performed using thermocouples to calculate power losses during normal discharges. A linear increase of the total power to the limiter was found ranging from 10% of the total input power at n-e = 0.3.10**14 cm**-3 up to 35% at n-e = 3.10**14 cm**-3. The power lost to the wall was of the order of 70% increasing if the electron density is increased with higher plasma current. The overall energy balance tends to 100% at higher current and density (n-e > 1.10**14 cm**-3) suggesting a more uniform distribution of the energy fluxes. A characteristic decay length of the energy ranging from 0.5 to 1 cm was also estimated.
Bibliographic Reference: 7TH INTERNATIONAL CONFERENCE ON PLASMA-SURFACE INTERACTIONS IN CONTROLLED FUSION DEVICES, PRINCETON (UK), MAY 5-9, 1986 PP. 5-12 WRITE TO SERVIZIO STUDI E DOCUMENTAZIONE - ENEA, CENTRO RICERCHE ENERGIA FRASCATI, C.P. 65 00044 FRASCATI, ROMA (ITALY), MENTI
Record Number: 1989125044900 / Last updated on: 1987-07-01
Available languages: en