Observations are reported of electromagnetic emissions at frequencies above the electron gyrofrequency in a mirror-confined electron cyclotron resonance plasma. These emissions are interpreted as the excitation of the fast extraordinary wave at the fundamental harmonic of the electron gyrofrequency, similar to the excitation of the auroral kilometric radiation (AKR) of the Earth. The paper proposes a method for studying the temporal characteristics of physical processes occurring in the auroral electron acceleration region, which is applied to the AKR measurements onboard INTERBALL-2 spacecraft and adopted to the measurements of laboratory plasma emissions. The joint data analysis of satellite measurements and the results of laboratory experiments showed similarities in the cyclotron instability development.

据报道，在镜面限制的电子回旋共振等离子体中，电磁辐射频率高于电子回旋频率。这些发射被解释为电子陀螺频率基波处的快速异常波的激发，类似于地球的极光千米辐射 (AKR) 的激发。本文提出了一种研究极光电子加速区物理过程时间特性的方法，该方法应用于INTERBALL-2航天器上的AKR测量，并用于实验室等离子体发射的测量。卫星测量的联合数据分析和实验室实验结果表明回旋加速器不稳定性发展的相似性。