Time: 2011-06-22 13:00:00
Speaker: Zhigang Deng, Panpan Liu [IFTS]
Place: Rm. 413, Bld. 11#, Yuquan Campus
Abstract:
Speaker: Zhigang DengTopic: Generation of a large amount of energetic electrons by a high-density bar in complex-structure bubble
Abstract: Various parameters which may affect the generation of energetic electrons in laser wake-field acceleration (LWFA), and an empirical formula on the generation of energetic electron in complex-structure bubble will be introduced. In order to generate a large amount of energetic electrons, a method by a high-density bar is employed. The simulation results by a high-density bar in complex-structure bubble will be given.
Speaker：Panpan Liu
title：Physics of Zonal Flows
abstract：Zonal flows, which means azimuthally symmetric band-like shear flows, are ubiquitous phenomena in nature and the laboratory.It is now widely recognized that zonal flows are a key constituent in virtually all cases and regimes of drift wave turbulence. In this review, we will discuss the physics of zonal flows, including the Characteristic features of zonal flow, Generation mechanisms and their interaction with drift waves, in which we use the "Scale separation method".
