DEMO堆芯氘氚燃料比和温度测量
On the Core Deuterium-Tritium Fuel Ratio and Temperature Measurements in DEMO
摘要：
与ITER相比，DEMO是一台处于加速作用下的实验聚变机，下一步的测试聚变动力装置，其特点是非常长的脉冲/稳态运行和更高的等离子体体积和聚变功率。中子和伽马通量水平的大幅增加将需要减少对工厂的实际访问。这意味着一些传统的诊断聚变等离子体控制将不适合在演示。开发诊断和机器设计是测试工厂的主要任务。氘-氚燃料比和温度是重要的参数之一，应加以控制。在这封信中，提出了一种新的技术的核心燃料比和温度诊断。它是基于对热氘氚等离子体中T（p，γ）4 He和D（T，γ）5 He核反应速率的测量和比较。基于对高能伽马射线的检测，这种诊断是鲁棒的、有效的，并且不需要直接访问等离子体。它可以包括在燃烧等离子体控制系统的回路中。本文还讨论了在JET和ITER实验中诊断的可行性。
英文摘要：
Comparing with ITER, the experimental fusion machine under constraction, the next step test fusion power plant, DEMO will be characterized by very long pulse/steady-state operation and much higher plasma volume and fusion power. The substantially increased level of neutron and gamma fluxes will require reducing the physical access to the plant. It means some conventional diagnostics for the fusion plasma control will be not suitable in DEMO. Development of diagnostics along with the machine design is a primary task for the test plant. The deuterium- tritium fuel ratio and temperature are among important parameters, which should be under control. In this letter a novel technique for the core fuel ratio and temperature diagnostics is proposed. It is based on measurements and comparison of the rates T(p,γ)4He and D(T,γ)5He nuclear reactions that take place in the hot deuterium-tritium plasma. Based on detection of high energy gamma-rays, this diagnostic is robust, efficient and does not require direct access to the plasma. It could be included in the loop of the burning plasma control system. A feasibility of the diagnostic in experiments on JET and ITER is also discussed.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
