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11月11日学术报告:Recent Advances on Plasma Wakefield Acceleration of Electrons and the Generation of Secondary Particles and Radiation

来源: 发布时间:2020-11-05【字体:

Title: Recent Advances on Plasma Wakefield Acceleration of Electrons and the Generation of Secondary Particles and Radiation 

Speaker: Nasr A. M. Hafz (Ph.D)

Affiliation/Position: Particle Acceleration Group Leader, ELI-ALPS, Hungary.

报告时间:2020111110:00

    点:溢智厅

 

Abstract: There has been a dramatic advance in commercial/home-built high-power ultra-compact laser systems around the world during the last two decades. This has led to significant advances in the physics and potential applications of relativistic laser-plasma interactions in which electron acceleration, via the laser wakefield acceleration (LWFA) mechanism, is the chief subject so far. The LWFA has led to acceleration of up to 8 GeV maximum electron beam energies in 2018 (LBNL, USA). On the other side, novel experimental work includes the electron acceleration in plasma wakefields excited/driven by high-energy proton beams (CERN), dual-color LWFA (SJTU and ELI-ALPS), and the operation of a LWFA for 24 hrs continuously without a stop (DESY, Germany) to serve as an injector for high-energy conventional accelerator at DESY. On the applications frontiers, there has been a dramatic advance on using hard betatron X-rays, inherently generated in LWFA along with the electron beams, for micro-computed tomography (IC-London), phase contract imaging and WDM probing (LOA, France). In this talk the author will discuss some of those subjects as well as the ongoing work in his own group at ELI-ALPS using high repetition rate laser systems.        

主讲人简介: Nasr教授2001年博士毕业于日本东京大学,2002年至2011年分别在韩国电器研究院和光州科学技术研究所开展利用太瓦至百太瓦激光器进行激光-等离子体加速器的研发工作。之后于20113月至201812月就职于上海交通大学物理于天文学院,被聘为特别研究员,开展了强场激光与物质相互作用的研究工作。目前Nasr教授为欧盟极端光学基础设施阿秒光脉冲源研究所(Extreme Light Infrastructure, ELI-ALPS Research Institute)的首席科学家,电子加速组组长。他的研究方向主要包括:激光等离子体电子加速及X射线产生;强场物理条件下基于激光等离子体相互作用的相对论电动力学(同步辐射和汤姆孙散射);基于激光与物质相互作用的伽马射线和正电子束产生;超快激光等离子体、粒子束及辐射源的诊断与标定等。发表学术论文90余篇,其中高被引论文17篇,《Scientific Reports》编委,《Nature Photonics》、《Applied Physics Letters》等多部国际知名期刊审稿人。

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