Picture of DNA strand

Pioneering chemical biology & medicinal chemistry through Open Access research...

Strathprints makes available scholarly Open Access content by researchers in the Department of Pure & Applied Chemistry, based within the Faculty of Science.

Research here spans a wide range of topics from analytical chemistry to materials science, and from biological chemistry to theoretical chemistry. The specific work in chemical biology and medicinal chemistry, as an example, encompasses pioneering techniques in synthesis, bioinformatics, nucleic acid chemistry, amino acid chemistry, heterocyclic chemistry, biophysical chemistry and NMR spectroscopy.

Explore the Open Access research of the Department of Pure & Applied Chemistry. Or explore all of Strathclyde's Open Access research...

Spectral enhancement in the double pulse regime of laser proton acceleration

Markey, K. and McKenna, P. and Brenner, C. M. and Carroll, D. C. and Günther, M.M. and Harres, K. and Kar, S. and Lancaster, K. and Nürnberg, F. and Quinn, M. N. and Robinson, A. P. L. and Roth, M. and Zepf, M. and Neely, D. (2010) Spectral enhancement in the double pulse regime of laser proton acceleration. Physical Review Letters, 105 (19). ISSN 0031-9007

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

Abstract

The use of two separate ultraintense laser pulses in laser-proton acceleration was compared to the single pulse case employing the same total laser energy. A double pulse profile, with the temporal separation of the pulses varied between 0.75-2.5 ps, was shown to result in an increased maximum proton energy and an increase in conversion efficiency to fast protons by up to a factor of 3.3. Particle-in-cell simulations indicate the existence of a two stage acceleration process. The second phase, induced by the main pulse preferentially accelerates slower protons located deeper in the plasma, in contrast to conventional target normal sheath acceleration.