论文标题
γ射线闪光是由TETRA-II在地面上观察到的闪电产生的
Gamma Ray Flashes Produced by Lightning Observed at Ground Level by TETRA-II
论文作者
论文摘要
在运营的头两年中，基于地面的陆地伽玛射线闪光灯和充满活力的雷暴屋顶阵列（TETRA）-II伽玛射线探测器录制了22次与闪电相关的毫秒尺度的伽玛射线。在这项研究中，我们介绍了路易斯安那州的三个TETRA-II地面层面，波多黎各和巴拿马的三个地面地点，以及来自VAISALA全球闪电数据集的同时无线电频率信号，Vaisala National Lightning National Lightning网络，地球网络，灯光网络和世界广阔的网络。伽玛射线事件与闪电活动之间的相对时机是了解爆发的生产机制的关键参数。伽玛射线时谱及其与无线电杂种的相关性表明，伽玛射线事件是由闪电领导者的活动启动的，并在闪电返回中风之前在闪电领导者渠道发展的最后阶段附近生产。
In its first 2 years of operation, the ground-based Terrestrial gamma ray flash and Energetic Thunderstorm Rooftop Array(TETRA)-II array of gamma ray detectors has recorded 22 bursts of gamma rays of millisecond-scale duration associated with lightning. In this study, we present the TETRA-II observations detected at the three TETRA-II ground-level sites in Louisiana, Puerto Rico, and Panama together with the simultaneous radio frequency signals from the VAISALA Global Lightning Data set, VAISALA National Lightning Detection Network, Earth Networks Total Lightning Network, and World Wide Lightning Location Network. The relative timing between the gamma ray events and the lightning activity is a key parameter for understanding the production mechanism(s) of the bursts. The gamma ray time profiles and their correlation with radio sferics suggest that the gamma ray events are initiated by lightning leader activity and are produced near the last stage of lightning leader channel development prior to the lightning return stroke.
