In this work, we study the transport and confinement properties of runaway electrons (RE) in the presence of magnetic fields with perturbations producing different levels of stochasticity. We use Kinetic Orbit Runaway Electron Code (KORC) [Carbajal et al., Phys. Plasmas 24, 042512 (2017) and del-Castillo-Negrete et al., Phys. Plasmas 25, 056104 (2018)] for simulating the full-orbit (FO) and guiding-center (GC) dynamics of RE in perturbed magnetic fields that exhibit magnetic islands. We extend previous works on this problem [Wingen et al., Nucl. Fusion 46, 941 (2006); Izzo et al., Nucl. Fusion 51, 063032 (2011); Papp et al., Nucl. Fusion 51, 043004 (2011); V. Izzo and P. Parks, Phys. Plasmas 24, 060705 (2017); and Sommariva et al., Nucl. Fusion 58, 016043 (2018)] by studying in detail full-orbit effects on the RE dynamics. We quantify FO effects on RE transport by performing one-to-one comparisons between FO and GC simulations. It is found that, for the magnetic field configurations considered, GC simulat...

中文翻译：

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随机环形磁场中的失控电子传输

在这项工作中，我们研究了在磁场存在的情况下失控电子 (RE) 的传输和限制特性，扰动会产生不同程度的随机性。我们使用动力学轨道失控电子代码 (KORC) [Carbajal et al., Phys. Plasmas 24, 042512 (2017) 和 del-Castillo-Negrete 等人，Phys. Plasmas 25, 056104 (2018)] 用于模拟 RE 在显示磁岛的扰动磁场中的全轨道 (FO) 和引导中心 (GC) 动力学。我们扩展了之前在这个问题上的工作 [Wingen 等人，Nucl. 融合 46, 941 (2006); Izzo 等人，Nucl。融合 51, 063032 (2011); Papp 等人，Nucl。融合 51, 043004 (2011); V. Izzo 和 P. Parks，物理。等离子 24, 060705 (2017); 和 Sommariva 等人，Nucl。Fusion 58, 016043 (2018)] 通过详细研究全轨道对 RE 动力学的影响。我们通过在 FO 和 GC 模拟之间进行一对一比较来量化 FO 对 RE 传输的影响。发现，对于所考虑的磁场配置，GC 模拟...