Predictability of burning plasmas is a key issue for designing and building credible future fusion devices. In this context, an important effort of physics understanding and guidance is being carried out in parallel to JET experimental campaigns in H and D by performing analyses and modelling towards an improvement of the understanding of DT physics for the optimization of the JET-DT neutron yield and fusion born alpha particle physics. Extrapolations to JET-DT from recent experiments using the maximum power available have been performed including some of the most sophisticated codes and a broad selection of models. There is a general agreement that 11–15 MW of fusion power can be expected in DT for the hybrid and baseline scenarios. On the other hand, in high beta, torque and fast ion fraction conditions, isotope effects could be favourable leading to higher fusion yield. It is shown that alpha particles related physics, such as TAE destabilization or fusion power electron heating, could be studied in ITER relevant JET-DT plasmas.
燃燒等離子體的可預測性是設計和建造可信賴的未來聚變裝置的關鍵問題。在此背景下，正在與JET在H和D中的實驗活動並行開展重要的物理理解與指導工作，通過分析和建模來增進對DT物理的理解，以優化JET-DT中子產額和聚變產生的α粒子物理。利用可用的最大功率，已從近期實驗外推至JET-DT，其中包含了部分最先進的計算機代碼和廣泛的模型選擇。普遍共識是，在混合方案和基準方案中，DT聚變功率預計可達11–15 MW。另一方面，在高β、力矩和快粒子份額條件下，同位素效應可能有利，從而導致更高的聚變功率。結果表明，在與ITER相關的JET-DT等離子體中，可以研究與α粒子相關的物理，例如TAE不穩定性或聚變產生的α粒子對電子的加熱。