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Title: Existence and accessibility of igniting states in a tokamak inferred from its performance in tritiumless discharges

Journal Article · · Fusion Technol.; (United States)
OSTI ID:6313177

The conditions for the existence and accessibility of ignited or subignited deuterium-tritium states are discussed in terms of the performance of the thermonuclear device in tritiumless discharges. The discussion includes the effects of the thermal instability of both the marginally igniting states and the nonstationary states in the start-up phase. These effects are an integral part of the problem of the accessibility to ignition under reliable conditions. Typical examples taken from the next generation of igniting tokamaks are discussed. The necessity of allowing sufficient excursion of the plasma column for a stable drive to ignition by feedback on the vertical field is underlined.

Research Organization:
Centro di Studi sulla Propulsione e l'Energetica, CNR-Politecnico di Milano, Milan (IT); Instituto di Fisica del Plasma, Associazione ENEA-CNR-EURATOM, Milan (IT)
OSTI ID:
6313177
Journal Information:
Fusion Technol.; (United States), Vol. 14:2
Country of Publication:
United States
Language:
English