Publications Details

Post-test examination of a Li-Ta heat pipe exposed to H plasma in Magnum PSI

Nygren, Richard E.; Matthews, G.F.; Morgan, T.W.; Silburn, S.A.; Rosenfeld, J.H.; North, M.T.; Tallarigo, A.; Stavila, Vitalie S.

The authors exposed a radiatively cooled, Li-filled tantalum (Ta) heat pipe (HP) to a H plasma in Magnum PSI continuously for ˜2 h. We kept the overall heat load on the inclined HP constant and varied the tilt to give peak heat fluxes of ˜7.5–13 MW/m2. The peak temperature reached ˜1250 °C. This paper describes the post-test analysis and discusses Li HPs with materials other than Ta for fusion. A companion paper describes the experiment.