IGNITOR中包含低功率ICRH少数加热的热核不稳定性分析
Analysis of the Thermonuclear Instability including Low-Power ICRH Minority Heating in IGNITOR
摘要：
本文对环形等离子体中经典等离子体的非线性热平衡方程进行了解析和数值研究。平衡温度的确定和溶液的稳定性分析是通过求解能量平衡方程来进行的，该方程包括由经典动力学理论获得的输运关系。还提供了约束时间的估计。我们表明，ICRH加热的点火器实验，在其他应用中，预计将被用来触发热核不稳定性。这里考虑的情况是，通过向标称$50$- $50$ $\%$氘-氚混合物中添加一小部分${}^3He$，使点火器在略微亚临界状态下运行。功率损失和α加热之间的差异通过额外的ICRH加热来补偿，这应该能够通过${}^3He$少数和背景$D-T$离子之间的碰撞来增加全局等离子体温度。
英文摘要：
The nonlinear thermal balance equation for classical plasma in a toroidal geometry is analytically and numerically investigated including ICRH power. The determination of the equilibrium temperature and the analysis of the stability of the solution are performed by solving the energy balance equation that includes the transport relations obtained by the classical kinetic theory. An estimation of the confinement time is also provided. We show that the ICRH heating in the IGNITOR experiment, among other applications, is expected to be used to trigger the thermonuclear instability. Here a scenario is considered where IGNITOR is led to operate in a slightly sub-critical regime by adding a small fraction of ${}^3He$ to the nominal $50$$\%$-$50$$\%$ Deuterium-Tritium mixture. The difference between power lost and alpha heating is compensated by additional ICRH heating, which should be able to increase the global plasma temperature via collisions between ${}^3He$ minority and the background $D-T$ ions.
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