caa a22 4500 445371242 CHVBK 20180317142947.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s00340-011-4639-4 doi (NATIONALLICENCE)springer-10.1007/s00340-011-4639-4 Laser-plasma electron acceleration in dielectric capillary tubes [Elektronische Daten] [G. Genoud, K. Cassou, F. Wojda, H. Ferrari, C. Kamperidis, M. Burza, A. Persson, J. Uhlig, S. Kneip, S. Mangles, A. Lifschitz, B. Cros, C.-G. Wahlström] Electron beams and betatron X-ray radiation generated by laser wakefield acceleration in long plasma targets are studied. The targets consist of hydrogen filled dielectric capillary tubes of diameter 150 to 200 microns and length 6 to 20mm. Electron beams are observed for peak laser intensities as low as 5×1017W/cm2. It is found that the capillary collects energy outside the main peak of the focal spot and contributes to keep the beam self-focused over a distance longer than in a gas jet of similar density. This enables the pulse to evolve enough to reach the threshold for wavebreaking, and thus trap and accelerate electrons. No electrons were observed for capillaries of large diameter (250μm), confirming that the capillary influences the interaction and does not have the same behaviour as a gas cell. Finally, X-rays are used as a diagnostic of the interaction and, in particular, to estimate the position of the electrons trapping point inside the capillary. The Author(s), 2011 Genoud G. Department of Physics, Lund University, P.O. Box 118, 22100, Lund, Sweden aut Cassou K. Laboratoire Physique Gaz et Plasmas (UMR 8578), Université Paris-Sud 11, 91405, Orsay Cedex, France aut Wojda F. Laboratoire Physique Gaz et Plasmas (UMR 8578), Université Paris-Sud 11, 91405, Orsay Cedex, France aut Ferrari H. Laboratoire Physique Gaz et Plasmas (UMR 8578), Université Paris-Sud 11, 91405, Orsay Cedex, France aut Kamperidis C. Department of Physics, Lund University, P.O. Box 118, 22100, Lund, Sweden aut Burza M. Department of Physics, Lund University, P.O. Box 118, 22100, Lund, Sweden aut Persson A. Department of Physics, Lund University, P.O. Box 118, 22100, Lund, Sweden aut Uhlig J. Department of Chemical Physics, Lund University, P.O. Box 124, 22100, Lund, Sweden aut Kneip S. Blackett Laboratory, Imperial College London, SW7 2BZ, London, UK aut Mangles S. Blackett Laboratory, Imperial College London, SW7 2BZ, London, UK aut Lifschitz A. Laboratoire Physique Gaz et Plasmas (UMR 8578), Université Paris-Sud 11, 91405, Orsay Cedex, France aut Cros B. Laboratoire Physique Gaz et Plasmas (UMR 8578), Université Paris-Sud 11, 91405, Orsay Cedex, France aut Wahlström C.-G Department of Physics, Lund University, P.O. Box 118, 22100, Lund, Sweden aut Applied Physics B Springer-Verlag 105/2(2011-11-01), 309-316 0946-2171 105:2<309 2011 105 340 https://doi.org/10.1007/s00340-011-4639-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-011-4639-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Genoud G. Department of Physics, Lund University, P.O. Box 118, 22100, Lund, Sweden aut NATIONALLICENCE 700 1- Cassou K. Laboratoire Physique Gaz et Plasmas (UMR 8578), Université Paris-Sud 11, 91405, Orsay Cedex, France aut NATIONALLICENCE 700 1- Wojda F. Laboratoire Physique Gaz et Plasmas (UMR 8578), Université Paris-Sud 11, 91405, Orsay Cedex, France aut NATIONALLICENCE 700 1- Ferrari H. Laboratoire Physique Gaz et Plasmas (UMR 8578), Université Paris-Sud 11, 91405, Orsay Cedex, France aut NATIONALLICENCE 700 1- Kamperidis C. Department of Physics, Lund University, P.O. Box 118, 22100, Lund, Sweden aut NATIONALLICENCE 700 1- Burza M. Department of Physics, Lund University, P.O. Box 118, 22100, Lund, Sweden aut NATIONALLICENCE 700 1- Persson A. Department of Physics, Lund University, P.O. Box 118, 22100, Lund, Sweden aut NATIONALLICENCE 700 1- Uhlig J. Department of Chemical Physics, Lund University, P.O. Box 124, 22100, Lund, Sweden aut NATIONALLICENCE 700 1- Kneip S. Blackett Laboratory, Imperial College London, SW7 2BZ, London, UK aut NATIONALLICENCE 700 1- Mangles S. Blackett Laboratory, Imperial College London, SW7 2BZ, London, UK aut NATIONALLICENCE 700 1- Lifschitz A. Laboratoire Physique Gaz et Plasmas (UMR 8578), Université Paris-Sud 11, 91405, Orsay Cedex, France aut NATIONALLICENCE 700 1- Cros B. Laboratoire Physique Gaz et Plasmas (UMR 8578), Université Paris-Sud 11, 91405, Orsay Cedex, France aut NATIONALLICENCE 700 1- Wahlström C.-G Department of Physics, Lund University, P.O. Box 118, 22100, Lund, Sweden aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 105/2(2011-11-01), 309-316 0946-2171 105:2<309 2011 105 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer