Ion emission from warm dense matter produced by irradiation with a soft x-ray free-electron laserOA
We report on an experiment performed at the FLASH2 free-electron laser(FEL)aimed at producing warm dense matter via soft x-ray isochoric heating.In the experiment,we focus on study of the ions emitted during the soft x-ray ablation process using time-of-flight electron multipliers and a shifted Maxwell–Boltzmann velocity distribution model.We find that most emitted ions are thermal,but that some impurities chemisorbed on the target surface,such as protons,are accelerated by the electrostatic field created in the plasma by escaped electrons.The morphology of the complex crater structure indicates the presence of several ion groups with varying temperatures.We find that the ion sound velocity is controlled by the ion temperature and show how the ion yield depends on the FEL radiation attenuation length in different materials.
Josef Krása;Tomás Burian;Vera Hájková;Jaromír Chalupský;Šimon Jelínek;Katerina Frantálová;Michal Krupka;Zuzana Kuglerová;Sushil Kumar Singh;Vojtech Vozda;Ludek Vysín;MichalŠmíd;Pablo Perez-Martin;Marion Kühlman;Juan Pintor;Jakub Cikhardt;Matthias Dreimann;Dennis Eckermann;Felix Rosenthal;Sam M.Vinko;Alessandro Forte;Thomas Gawne;Thomas Campbell;Shenyuan Ren;YuanFeng Shi;Trevor Hutchinson;Oliver Humphries;Thomas Preston;Mikako Makita;Motoaki Nakatsutsumi;Xiayun Pan;Alexander Köhler;Marion Harmand;Sven Toleikis;Katerina Falk;Libor Juha;
Department of Radiation and Chemical Physics,Institute of Physics,Czech Academy of Sciences,Na Slovance 2,18221 Prague 8,Czech RepublicDepartment of Radiation and Chemical Physics,Institute of Physics,Czech Academy of Sciences,Na Slovance 2,18221 Prague 8,Czech Republic Laser Plasma Department,Institute of Plasma Physics,Czech Academy of Sciences,Za Slovankou 3,18200 Prague 8,Czech Republic Department of Surface and Plasma Science,Faculty of Mathematics and Physics,Charles University in Prague,V Holesovi ckách 2,18000 Prague 8,Czech RepublicDepartment of Radiation and Chemical Physics,Institute of Physics,Czech Academy of Sciences,Na Slovance 2,18221 Prague 8,Czech Republic Laser Plasma Department,Institute of Plasma Physics,Czech Academy of Sciences,Za Slovankou 3,18200 Prague 8,Czech Republic Department of Physical Electronics,Faculty of Nuclear Science and Engineering Physics,Czech Technical University in Prague,V Holesovi ckách 2,18000 Prague 8,Czech RepublicDepartment of Radiation and Chemical Physics,Institute of Physics,Czech Academy of Sciences,Na Slovance 2,18221 Prague 8,Czech Republic Laser Plasma Department,Institute of Plasma Physics,Czech Academy of Sciences,Za Slovankou 3,18200 Prague 8,Czech RepublicHelmholtz-Zentrum Dresden-Rossendorf,Bautzner Landstraße 400,01328 Dresden,GermanyDESY Photon Science,Notkestraße 85,D-22607 Hamburg,GermanyInstitut de Minéralogie,de Physique des Matériaux et de Cosmochimie,UMR 7590–UPMC/CNRS/IRD/MNHN,Sorbonne Université,4 place Jussieu,75005 Paris,FranceDepartment of Physics,Faculty of Electrical Engineering,Czech Technical University in Prague,Technická2,16627 Prague 6,Czech RepublicCenter for Soft Nanoscience,University of Münster,Busso-Peus-Straße 10,D-48149 Münster,GermanyDepartment of Physics,Clarendon Laboratory,University of Oxford,Parks Road,Oxford OX13PU,United Kingdom Central Laser Facility,STFC Rutherford Appleton Laboratory,Didcot OX110QX,United KingdomDepartment of Physics,Clarendon Laboratory,University of Oxford,Parks Road,Oxford OX13PU,United KingdomLawrence Livermore National Laboratory,7000 East Avenue,Livermore,California 94550,USAEuropean XFEL GmbH,Holzkoppel 4,D-22869 Schenefeld,GermanyHelmholtz-Zentrum Dresden-Rossendorf,Bautzner Landstraße 400,01328 Dresden,Germany Technische Universität Dresden,01062 Dresden,GermanyDepartment of Radiation and Chemical Physics,Institute of Physics,Czech Academy of Sciences,Na Slovance 2,18221 Prague 8,Czech Republic Helmholtz-Zentrum Dresden-Rossendorf,Bautzner Landstraße 400,01328 Dresden,Germany Technische Universität Dresden,01062 Dresden,Germany
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《Matter and Radiation at Extremes》 2024 (001)
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