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A Next Step device which can demonstrate long burn with a high probability of success is possible, without speculating on the accumulation of favourable effects and ignoring others. From the data available this appears possible only with large devices such as NET, ITER or JIT. If such a device is to provide the necessary database to go to DEMO, it must be able to explore a sufficiently wide range of parameters. From present knowledge, this can be obtained by choosing a conservative value of the reference magnetic field away from technological limits and compensating with a larger size. There remain for all devices very serious physics problems to solve, the most acute being the exhaust, which must be compatible with a good quality enhanced confinement regime and a sufficiently high wall load to make a reactor.

Additional information

Authors: TROYON F, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, Lausanne (CH)
Bibliographic Reference: Paper presented: 16th Symposium on Fusion Technology, London (GB), Sept. 3-7, 1990
Availability: Available from (1) as Paper EN 35642 ORA
Record Number: 199110779 / Last updated on: 1994-12-02
Original language: en
Available languages: en
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