Essays about: "electron acceleration"

Showing result 11 - 15 of 19 essays containing the words electron acceleration.

1. 11. Reproducibility of bunches of electrons accelerated in laser driven wakefields

   University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

   Author : Philip Siederer; [2016]
   Keywords : Laser; wakefield; acceleration; electron acceleration; plasma; LWFA; Physics and Astronomy;

   Abstract : Laser wakefield acceleration (LWFA) utilises a high intensity laser pulse to excite a plasma density wave with associated large directed electric fields. These large electric fields can be used to accelerate electrons, making LWFA a good candidate for a compact electron beam source. READ MORE

3. 12. Parametric study of density down-ramp injection in laser wakefield acceleration

   University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

   Author : Henrik Ekerfelt; [2015]
   Keywords : Laser wakefield acceleration; LWFA; gradient injection; density down-ramp injection; particle-in-cell simulation; PIC; top-view; top view; Thomson scattered light; trace; Physics and Astronomy;

   Abstract : In laser wakefield acceleration (LWFA) a high intensity laser pulse is used to excite a plasma density wave with an associated electric field. This electric field can be used to accelerate electrons. However, to be accelerated the electrons first of all need to enter the plasma wave. This process is called injection. READ MORE

4. 13. Effects of electron beam irradiation on the electrical properties of III-V semiconductor nanowires

   University essay from Lunds universitet/Fysiska institutionen

   Author : Sobhan Sepehri; [2013]
   Keywords : Nanowires; electrical transport; electron beam irradiation; carrier modulation; Physics and Astronomy;

   Abstract : Scanning electron microscopy is widely used in nanowire device fabrication. In spite of the attractive high resolution that scanning electron microscopy provides, it influences the electrical properties of III-V nanowires. READ MORE

5. 14. Characterization of Dynamic Elastic Modulus and Damping Property of CNx Coating Material by Experimental Modal Analysis and Finite Element Approach

   University essay from KTH/Industriell produktion

   Author : Md. Masud Ur-Rashid; [2013]
   Keywords : ;

   Abstract : Free-layer hard or soft coating material can be used for enhancing the inherent damping capacity (energy dissipation ability) of a structure under cyclic bending deformation. This may help to attenuate the vibration amplitude at the resonance frequency. READ MORE

6. 15. Topography and morphology analysis of marine nanoparticles and a pedagogical study of representations used for improving a high school experiment

   University essay from KTH/Rymd- och plasmafysik

   Author : Robin Bramsäter; [2012]
   Keywords : ;

   Abstract : The Arctic Summer Cloud Ocean Study expedition took place during the autumn of 2008 and brought back water and air samples. One theory was that marine particles were shot into the atmosphere by bubble bursting and, while in the atmosphere, acted as cloud condensation nuclei. READ MORE