Picture of smart phone in human hand

World leading smartphone and mobile technology research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by Strathclyde researchers from the Department of Computer & Information Sciences involved in researching exciting new applications for mobile and smartphone technology. But the transformative application of mobile technologies is also the focus of research within disciplines as diverse as Electronic & Electrical Engineering, Marketing, Human Resource Management and Biomedical Enginering, among others.

Explore Strathclyde's Open Access research on smartphone technology now...

Controlling the properties of ultraintense laser-proton sources using transverse refluxing of hot electrons in shaped mass-limited targets

Tresca, O. and Carroll, D. C. and Yuan, X. H. and Aurand, B. and Bagnoud, V. and Brenner, C. M. and Coury, M. and Fils, J. and Gray, R. J. and Kuehl, T. and Li, C. and Li, Y. T. and Lin, X. X. and Quinn, M. N. and Evans, R. G. and Zielbauer, B. and Roth, M. and Neely, D. and McKenna, P. (2011) Controlling the properties of ultraintense laser-proton sources using transverse refluxing of hot electrons in shaped mass-limited targets. Plasma Physics and Controlled Fusion, 53 (10). -. ISSN 0741-3335

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

We report on the transverse refluxing of energetic electrons in mass-limited foil targets irradiated with high intensity (1 x 10(19)Wcm(-2)), picosecond laser pulses. It is shown experimentally that the maximum energies of protons accelerated by sheath fields formed at the rear and at the edges of the target increase with decreasing target size. This is due to the modification of the sheath field by the energetic electrons which spread laterally along the target surface and reflect from the edges. In addition, it is shown that this transverse refluxing of energetic electrons can be used to tailor the spatial-intensity distribution of the proton beam by engineering the shape and size of the target.