Importance of energy and angular resolutions in top-hat electrostatic analysers for solar wind proton measurements
Importance of energy and angular resolutions in top-hat electrostatic analysers for solar wind proton measurements
复制标题
能量和角分辨率在用于太阳风质子测量的平顶静电分析仪中的重要性
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
M. Weinfeld
中科院分区：
文献类型：
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作者：
G. Collinson;D. Kataria;A. Coates;L. Saul;P. Wurz;M. Weinfeld
从数值模拟生成的太阳风质子速度分布函数（VDFs）出发，利用数值代码再现了典型顶帽静电分析仪的角/能量响应。模拟基于混合Vlasov- maxwell数值算法，该算法集成了离子分布函数的Vlasov方程，而电子被视为流体。通过仿真箱发射的虚拟卫星测量粒子的vdf。这样的vdf从模拟笛卡尔网格移动到能量角坐标，以模拟太阳风中真实传感器的响应。为了了解相空间分辨率对等离子体动力学关键参数的影响，研究了该分析仪不同能量角分辨率对现有和未来空间任务的影响。
We use a numerical code which reproduces the angular/energy response of a typical top-hat electrostatic analyser starting from solar wind proton velocity distribution functions (VDFs) generated by numerical simulations. The simulations are based on the Hybrid Vlasov-Maxwell numerical algorithm which integrates the Vlasov equation for the ion distribution function, while the electrons are treated as a fluid. A virtual satellite launched through the simulation box measures the particle VDFs. Such VDFs are moved from the simulation Cartesian grid to energy-angular coordinates to mimic the response of a real sensor in the solar wind. Different energy-angular resolutions of the analyser are investigated in order to understand the influence of the phase-space resolution in existing and upcoming space missions, with regards to determining the key parameters of plasma dynamics.
影响因子：
4.9
作者：
Camporeale, Enrico;Burgess, David
通讯作者：
Burgess, David