Observation of electron transport dynamics in high intensity laser interactions using multi-energy monochromatic x-ray imaging

Year: 2007

Authors: Gizzi LA., Giulietti A., Giulietti D., Koester P., Labate L., Levato T., Zamponi F., Luebcke A., Kaempfer T., Uschmann I., Foerster E., Antonicci A., Batani D.

Autors Affiliation: Intense Laser Irradiation Laboratory—IPCF, Consiglio Nazionale delle Ricerche, Via Moruzzi 1, 56124 Pisa, Italy;
INFN, Sezione di Pisa, Largo B. Pontecorro 3, 56127 Pisa, Italy;
Dip. Fisica, Universit`a di Pisa, Largo B. Pontecorro 3, 56127 Pisa, Italy;
Institute of Optics and Quantum Electronics, Friedrich-Schiller University, Max-Wien-Platz 1, 07743 Jena, Germany;
Dipartimento di Fisica G Occhialini, Universita Milano Bicocca, Milano, Italy

Abstract: We describe recent measurements in which a novel imaging technique was used to investigate the transport of high energy electrons produced by the interaction of a femtosecond laser pulse with a three-layer target at an intensity of 5 x 10(19) W cm(-2). The imaging system was configured to work in a singlephoton detection regime to identify the energy of the x-ray photons and to discriminate among K alpha photons generated in each target layer. Electrons emerging from the rear side after propagation through all the target layers were also detected using a custom developed detector. The results on fast electron propagation are combined with the information obtained from electron diagnostics and are modelled using analytical and numerical codes to obtain a detailed description of electron propagation dynamics.


Volume: 49 (12)      Pages from: B211  to: B221

KeyWords: dense matter; K-alpha; ultrashort; plasmas; target
DOI: 10.1088/0741-3335/49/12B/S19

Citations: 28
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