氘-氚聚变先进燃料循环

Advanced fuel cycle concept for D-T fusion

在多种核聚变中，氘－氚聚变是最容易实现的一种，氚是不稳定核素，有一个燃料循环的安全性和经济性问题。作为例子，分析了托卡马克（ＴＯＫＡＭＡＫ）装置中的氘－氚燃料循环过程，降低包层中氚的滞留量和渗透量是保证氚安全的主要方面。可流动带包壳球床方案能给出满意的解决办法，可以在包层内低温产氚，在包层外贮存设备中高温在线取氚。

In many kinds of nuclear fusion the D-T fusion is the easiest one. Tritium is a artificial unstable nuclide, which has safe and economic problems in the fuel cycle. As an example, to analyse a D-T fuel cycle in a Tokamak equipment is given. To reduce the reservation and permeation of Tritium in the blanket is important to ensure the safety. Mobile clad pebble hod concept can give a resonable solution. Tritium will be produced inside the blanket and recovered on line in the equipment outside blanket at different temperatures.