The dependence of confinement on input power for a tokamak plasma with regions having a stiff temperature profile is explored. The resilience of the confinement of the core energy to increasing power loss by core radiation from impurities in such situations, as it is anticipated will be required in a demonstration fusion reactor (DEMO) design, is examined.

中文翻译：

---

关于“僵硬”运输开始后的能量限制

探索了具有刚性温度分布区域的托卡马克等离子体的限制对输入功率的依赖性。在这种情况下，正如预期在示范聚变反应堆 (DEMO) 设计中所需要的那样，对核心能量的限制对来自杂质的核心辐射增加的功率损失的弹性进行了检查。