Micro-gun based on laser pulse propulsion

Experimental Studies of Photocathode Rf Gun with Laser Pulse Shaping

A technique of laser pulse shaping was developed for low-emittance electron beam generation in a photocathode RF gun. The emittance growth due to space charge and RF effects in the RF gun was experimentally investigated with square and gaussian temporal laser pulse shapes. It is found that the square pulse shaping is a useful tool for both the reduction of nonlinear space charge force and the c...

High-acceleration Micro-scale Laser Sails for Interstellar Propulsion

Modular Micro Propulsion System

M.C. Louwerse, H.V. Jansen, J.L.P.A. Moerel, H.M. Sanders, B.T.C. Zandbergen Dept. of Transducer Science & Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands TNO Defence, Security and Safety, P.O. Box 45, 2280 AA Rijswijk, The Netherlands Dept. of Earth Observation and Space Systems, Delft University of Technology, P.O. Box 5058, 2600 GB Delft, The Netherlands ema...

Pulse Detonation Propulsion

The objective of theoretical, computational and experimental studies outlined in this lecture note was to evaluate the design principles and propulsion performance of prospective air-breathing engines operating on pulse detonations of realistic hydrocarbon fuels with a realistic technique of detonation initiation via deflagration-to-detonation transition (DDT). 1.0 INTRODUCTION Activities in th...

Analytic and computational studies on micro-propulsion and micro-detonics

Based on a general theory of detonation waves with an embedded sonic locus that we have previously developed, we carry out asymptotic analysis of weakly curved slowly varying detonation waves and show that the theory predicts the phenomenon of detonation ignition and failure. The analysis is not restricted to near ChapmanJouguet detonation speeds and is capable of predicting quasi-steady, norma...