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Where technology & law meet: Open Access research on data security & its regulation ...

Strathprints makes available Open Access scholarly outputs exploring both the technical aspects of computer security, but also the regulation of existing or emerging technologies. A research specialism of the Department of Computer & Information Sciences (CIS) is computer security. Researchers explore issues surrounding web intrusion detection techniques, malware characteristics, textual steganography and trusted systems. Digital forensics and cyber crime are also a focus.

Meanwhile, the School of Law and its Centre for Internet Law & Policy undertake studies on Internet governance. An important component of this work is consideration of privacy and data protection questions and the increasing focus on cybercrime and 'cyberterrorism'.

Explore the Open Access research by CIS on computer security or the School of Law's work on law, technology and regulation. Or explore all of Strathclyde's Open Access research...

High resolution, single shot emittance measurement of relativistic electrons from laser-driven accelerator

Manahan, Grace and Brunetti, Enrico and Shanks, Richard and Islam, Mohammad and Ersfeld, Bernhard and Anania, Maria Pia and Cipiccia, Silvia and Issac, Riju and Raj, Gaurav and Vieux, Gregory and Welsh, Gregor H. and Wiggins, Mark and Jaroszynski, Dino (2011) High resolution, single shot emittance measurement of relativistic electrons from laser-driven accelerator. In: Laser acceleration of electrons, protons, and ions and medical applications of laser-generated secondary sources of radiation and particles. Proceedings of SPIE . SPIE--The International Society for Optical Engineering., Bellingham. ISBN 9780819486691

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Abstract

The normalised transverse emittance is a measure of the quality of an electron beam from a particle accelerator. The brightness, parallelism and focusability are all functions of the emittance. Here we present a high-resolution single shot method of measuring the transverse emittance of a 125 +/- 3 MeV electron beam generated from a laser wakefield accelerator (LWFA) using a pepper-pot mask. An average normalised emittance of epsilon(rms,x,y) = 2.2 +/- 0.7, 2.3 +/- 0.6 pi-mm-mrad was measured, which is comparable to that of a conventional linear accelerator. The best measured emittance was epsilon(rms,x),= 1.1 +/- 0.1 pi-mm-mrad, corresponding to the resolution limit of our system. The low emittance indicates that this accelerator is suitable for driving a compact free electron laser.