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通过严格求解导心坐标系下的哈密顿方程,提出了托卡马克装置中离子的真实轨道理论,并利用此理论对国际热核聚变实验堆(ITER)中α离子的真实轨道进行了数值模拟研究,获得了驻点轨道和近期理论预言的半俘获轨道.根据此真实轨道理论计算了ITER中α离子的直接损失率.结果发现,与所提出的真实轨道理论相比,以前的回旋平均理论大幅度低估了α离子的直接损失率,两种理论的损失率差值可达14%,对此差异进行了详细的分析并给出了物理上的解释.
The true orbit of ion in tokamak device is proposed by solving the Hamiltonian equation in the coordinate system of guide and the real orbit of α ion in ITER is numerically simulated We obtain the semi-trapping orbit of the stationary orbital and the recent theoretical predictions.According to this real orbital theory, the direct loss rate of α-ion in ITER is calculated.It is found that compared with the proposed real orbital theory, the previous averaging theory Greatly underestimated the direct loss rate of α-ions, the difference between the two theoretical rates of loss of up to 14%, a detailed analysis of the differences and gives a physical explanation.