Wide-Aperture Dense Plasma Fluxes Production Based on ECR Discharge in a Single Solenoid Magnetic Field
Vadim Skalyga, Sergey Golubev, Ivan Izotov, Roman Shaposhnikov, Sergey Razin, Alexander Sidorov, Aleksey Bokhanov, Mikhail Kazakov, Roman Lapin, Sergey Vybin
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Contributed paper at Proceedings of the 18th International Conference on Ion Sources
Results of experimental investigation of the ECR discharge in a single coil magnetic field as an alternative to RF and helicon discharges for wide-aperture dense plasma fluxes production are presented. A possibility of obtaining wide-aperture high density hydrogen plasma fluxes with homogenous transverse distribution was demonstrated in such a system. The prospects of using this system for obtaining high current ion beams are discussed.
Achievement of 1 MA Discharges in Hydrogen-Boron Plasmas on EXL-50U
Hebei Key Laboratory of Compact Fusion（河北紧凑型聚变重点实验室）；ENN Science and Technology Development Co., Ltd.（新奥科技发展有限公司）；Hefei University of Technology（合肥工业大学）；Southwestern Institute of Physics（西南物理研究院）；Forschungszentrum Jülich GmbH, Institute of Fusion Energy and Nuclear Waste Management- Plasmaphysik（于利希研究中心核能与核废物管理研究所等离子体物理部）
First achievement of 100 million degree electron temperatures in a spherical torus: the EXL-50U
Beijing ENN Fusion Energy Science and Technology Co., Ltd.（北京新奥聚能科技有限公司）；Beijing Key Laboratory of High Magnetic Field Spherical Torus Fusion Energy（北京市高磁场球马克托聚变能重点实验室）；Hebei Key Laboratory of Compact Fusion（河北省紧凑型聚变重点实验室）；School of Physics, East China University of Science and Technology（华东理工大学物理学院）；School of Resource Environment and Safety Engineering, University of South China（南华大学资源环境与安全工程学院）；International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics, State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology（华中科技大学电气与电子工程学院先进电磁工程与技术国家重点实验室磁约束聚变与等离子体物理国际联合研究实验室）；Southwestern Institute of Physics（西南物理研究院）
Manifestation of constrained dynamics in a low pressure spark
从稠密等离子体焦点的中子发射的一些功能表明，参与氘核的能量在105 eV的范围内，并有一个方向性的环形运动。这些装置的理论模型假设等离子体通过纯无旋流演变，因此无法预测等离子体尺寸尺度上的螺线管流。弛豫理论的预测与实验数据一致[S K H Auluck，Physics of Plasmas，18，032508（2011）]，但其所基于的假设与这些装置的已知特征不兼容。因此，没有令人满意的理论结构，提供了必要的螺线管流在这些设备。本文提出了这样的理论结构，即约束动力学原理，并描述了一个实验，为这一想法提供了支持。实验包括在氦气中在压力约100 hPa下在两个尖端电极之间的低电感、自击穿火花放电，所述尖端电极保持在安装在低电感高压电容器上的真空室内，所述尖端电极间隔30-50 mm的距离。电流导数信号在阻尼正弦放电的所有极值处显示出可再现的急剧下降。以放电轴为中心并垂直于放电轴的平面抗磁环始终显示代表轴向磁通量变化率的信号。使用一个简单的模型，使用所提出的原则，得到所观察到的现象的定性解释。
