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Taking characteristics envisaged for the ITER project (plasma form and composition, profiles, energy confinement time, density and beta limits), the dimensions of a D-T commercial reactor and a D-3He commercial reactor are compared, assuming losses through synchrotron radiation to be negligible. For the D-3He reactor, reasonable dimensions are only achieved with very strong magnetic fields in the superconductor winding. Taking a realistic value for the reflection coefficient of the wall with respect to synchrotron radiation, improved plasma characteristics (purity, ash density, profiles) are required for the dimensioning of an acceptable D-3He reactor. The case of a reactor operating with pure deuterium (i.e. without 3He injection) is also considered. Unrealistic dimensions result even when taking into account the contribution of self-generated 3He and neglecting losses through synchrotron radiation.

Additional information

Authors: JOHNER J, CEA, Département de Recherches sur la Fusion Contrôlée, CEN Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: Report: EUR-CEA-FC-1428 FR (1991) 33 pp.
Availability: Available from CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez-Durance (FR)
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