Radio frequency resonator structure and diagnostic measurements for a laboratory simulation of Auroral Kilometric Radiation
Radio frequency resonator structure and diagnostic measurements for a laboratory simulation of Auroral Kilometric Radiation
复制标题
用于极光千米辐射实验室模拟的射频谐振器结构和诊断测量
DOI：
10.1063/1.2856649
复制
发表时间：
2008
影响因子：
2.2
通讯作者：
R. Bingham
中科院分区：
文献类型：
--
作者：
K. Ronald;D. Speirs;S. McConville;A. Phelps;C. Robertson;C. Whyte;Wenlong He;K. Gillespie;A. Cross;R. Bingham
极光千米辐射是从地球极地磁层中等离子体密度耗尽的区域发出的。辐射频率接近局域电子回旋频率，在X模式下极化，效率为0.1%，功率高达1GW。对下降极光通量不稳定性的动力学分析表明，这种现象与回旋频率成比例。因此，通过将辐射频率提高到微波范围，实验性地再现了极光的几何形状。该实验将75- 85 keV的电子束传输通过磁通密度增加的区域，镜像比高达30。实验测量的模式，光谱，功率和转换效率的发射辐射的反射镜比的函数在两个谐振制度，频率为4.42和11.7GHz。本文将介绍微波诊断和测量。
Auroral Kilometric Radiation is emitted from regions of depleted plasma density in the Earth’s polar magnetosphere. The radiation frequency is close to the local electron cyclotron frequency, polarized in the X-mode with an efficiency of ∼1%, with power up to 1GW. Kinetic analysis of the instability in the descending auroral flux indicated that the phenomena scaled with the cyclotron frequency. Therefore, an experimental reproduction of the auroral geometry has been created scaled to laboratory dimensions by raising the radiation frequency to the microwave range. The experiment transports a 75–85keV electron beam through a region of increasing magnetic flux density, with a mirror ratio of up to 30. The experiments measured the mode, spectrum, power, and conversion efficiency of the emitted radiation as a function of the mirror ratio in two resonance regimes, with frequencies of 4.42 and 11.7GHz. The microwave diagnostics and measurements will be presented in this paper.
影响因子：
2.2
作者：
D. Speirs;S. McConville;K. Gillespie;K. Ronald;A. Phelps;A. Cross;R. Bingham;C. Robertson;C. Whyte;I. Vorgul;R. A. Cairns;B. Kellett
通讯作者：
D. Speirs;S. McConville;K. Gillespie;K. Ronald;A. Phelps;A. Cross;R. Bingham;C. Robertson;C. Whyte;I. Vorgul;R. A. Cairns;B. Kellett