Neutron radiation effects of the center conductor post in a low aspect ratio tokamak reactor

The fully exposed CCP in a low aspect ratio tokamak will receive high neutron damage, electrical resistive heating and neutron heating, which is one of the key components of the reactor and requires replacement at regular intervals. This paper gives the analysis results for the CCP in the low aspect ratio transmutation reactor considering parameters such as nuclear heating deposit, thermal-hydraulics parameters, radiation damage etc. Finally, those results are compared with those for the first wall of conventional tokamaks assuming the same technical requirements. (C) 1998 Elsevier Science B.V. All rights reserved.