Test of Radar Echo Detection using Electron Beam for Future Large Air Shower Observatory

我们正在进行一个研发项目，寻找宇宙射线引起的大范围空气阵雨的雷达回波。为了测试和发展这项技术，我们在望远镜阵列站点使用电子光源（ELS）电子束作为人工空气阵雨。一个无线电发射器和接收器已经被建造并放置在距离加速器束140米的地方，以搜索电子束轨迹的雷达回波。在2012年9月和12月，我们尝试探测40MeV， 109个电子，两种不同束流持续时间的ELS电子束的无线电信号。我们没有发现任何无线电回波信号，但我们已经观察到电子束的无线电发射。

We are carrying out an R&D project to search for radar echoes from cosmic ray induced extensive air showers. To test and develop this technique, we have used the Electron Light Source (ELS) electron beams at the Telescope Array site as artificial air showers. A radio transmitter and receivers have been constructed and placed them140m from the accelerator beam to search for radar echoes from the trail of the electron beam. In September and December 2012, we have tried to detect radio signals from ELS electron beams of 40MeV, 109 electrons with two different beam durations. We have not found any radio echo signals, but we have observed a radio emission from the electron beam.