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Your search keyword '"Dreimann, Matthias"' showing total 10 results
Start Over Author "Dreimann, Matthias"
10 results on '"Dreimann, Matthias"'

1. Development and performance simulations of a soft X‐ray and XUV split‐and‐delay unit at beamlines FL23/24 at FLASH2 for time‐resolved two‐color pump–probe experiments.

Author

Dreimann, Matthias, Wahlert, Frank, Roling, Sebastian, Treusch, Rolf, Plönjes, Elke, and Zacharias, Helmut

Subjects
*LIGHT filters, *OPTICAL gratings, *PHOTONS, *LASERS, *DISPERSION (Chemistry)
Abstract

The split‐and‐delay unit (SDU) at FLASH2 will be upgraded to enable the simultaneous operation of two temporally, spatially and spectrally separated probe beams when the free‐electron laser undulators are operated in a two‐color scheme. By means of suitable thin filters and an optical grating beam path a wide range of combinations of photon energies in the spectral range from 150 eV to 780 eV can be chosen. In this paper, simulations of the spectral transmission and performance parameters of the filter technique are discussed, along with a monochromator with dispersion compensation presently under construction. [ABSTRACT FROM AUTHOR]

Published
2024
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2. Ion emission from warm dense matter produced by irradiation with a soft x-ray free-electron laser

Author

Krása, Josef, primary, Burian, Tomáš, additional, Hájková, Věra, additional, Chalupský, Jaromír, additional, Jelínek, Šimon, additional, Frantálová, Kateřina, additional, Krupka, Michal, additional, Kuglerová, Zuzana, additional, Singh, Sushil Kumar, additional, Vozda, Vojtěch, additional, Vyšín, Luděk, additional, Šmíd, Michal, additional, Perez-Martin, Pablo, additional, Kühlman, Marion, additional, Pintor, Juan, additional, Cikhardt, Jakub, additional, Dreimann, Matthias, additional, Eckermann, Dennis, additional, Rosenthal, Felix, additional, Vinko, Sam M., additional, Forte, Alessandro, additional, Gawne, Thomas, additional, Campbell, Thomas, additional, Ren, Shenyuan, additional, Shi, YuanFeng, additional, Hutchinson, Trevor, additional, Humphries, Oliver, additional, Preston, Thomas, additional, Makita, Mikako, additional, Nakatsutsumi, Motoaki, additional, Pan, Xiayun, additional, Köhler, Alexander, additional, Harmand, Marion, additional, Toleikis, Sven, additional, Falk, Katerina, additional, and Juha, Libor, additional

Published
2023
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4. Ion emission from plasmas produced by femtosecond pulses of short-wavelength free-electron laser radiation focused on massive targets: an overview and comparison with long-wavelength laser ablation

Author

Krása, Josef, primary, Nassisi, Vincenzo, additional, Burian, Tomas, additional, Hajkova, Vera, additional, Chalupsky, Jaromir, additional, Jelinek, Simon, additional, Frantálová, Katerina, additional, Krupka, Michal, additional, Kuglerová, Zuzana, additional, Singh, Sushil K., additional, Vozda, Vojtech, additional, Vysin, Ludek, additional, Wild, Jan, additional, Smid, Michal, additional, Perez-Martin, Pablo, additional, Pan, Xiayun, additional, Kühlman, Marion, additional, Pintor, Juan, additional, Cikhardt, Jakub, additional, Dreimann, Matthias, additional, Eckermann, Dennis, additional, Rosenthal, Felix, additional, Vinko, Sam M., additional, Forte, Alessandro, additional, Gawne, Thomas, additional, Campbell, Thomas, additional, Ren, Shenyuan, additional, Shi, YuanFeng, additional, Hutchinson, Trevor, additional, Humphries, Oliver, additional, Preston, Thomas, additional, Makita, Mikako, additional, Nakatsutsumi, Motoaki, additional, Koehler, Alexander, additional, Harmand, Marion, additional, Toleikis, Sven, additional, Falk, Katerina, additional, and Juha, Libor, additional

Published
2023
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6. Ion emission from warm dense matter produced by irradiation with a soft x-ray free-electron laser.

Author

Krása, Josef, Burian, Tomáš, Hájková, Věra, Chalupský, Jaromír, Jelínek, Šimon, Frantálová, Kateřina, Krupka, Michal, Kuglerová, Zuzana, Singh, Sushil Kumar, Vozda, Vojtěch, Vyšín, Luděk, Šmíd, Michal, Perez-Martin, Pablo, Kühlman, Marion, Pintor, Juan, Cikhardt, Jakub, Dreimann, Matthias, Eckermann, Dennis, Rosenthal, Felix, and Vinko, Sam M.

Subjects
SOFT X rays, X-ray lasers, ION emission, FREE electron lasers, PHOTOMULTIPLIERS, SPEED of sound
Abstract

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. [ABSTRACT FROM AUTHOR]

Published
2024
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7. The soft X-ray and XUV split-and-delay unit at beamlines FL23/24 at FLASH2

Author

Dreimann, Matthias, primary, Wahlert, Frank, additional, Eckermann, Dennis, additional, Rosenthal, Felix, additional, Roling, Sebastian, additional, Reiker, Tobias, additional, Kuhlmann, Marion, additional, Toleikis, Sven, additional, Brachmanski, Maciej, additional, Treusch, Rolf, additional, Plönjes, Elke, additional, Siemer, Björn, additional, and Zacharias, Helmut, additional

Published
2023
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8. Ion emission from plasmas produced by femtosecond pulses of short-wavelength free-electron laser radiation focused on massive targets: an overview and comparison with long-wavelength laser ablation

Author

Juha, Libor, Bajt, Saša, Guizard, Stéphane, Krása, Josef, Nassisi, Vincenzo, Burian, Tomáš, Hájková, Věra, Chalupský, Jaromír, Jelínek, Šimon, Frantálová, Kateřina, Krupka, Michal, Kuglerová, Zuzana, Singh, Sushil Kumar, Vozda, Vojtěch, Vyšín, Luděk, Wild, Jan, Šmíd, Michal, Perez-Martin, Pablo, Pan, Xiayun, Kühlman, Marion, Pintor, Juan, Cikhardt, Jakub, Dreimann, Matthias, Eckermann, Dennis, Rosenthal, Felix, Vinko, Sam M., Forte, Alessandro, Gawne, Thomas, Campbell, Thomas, Ren, Shenyuan, Shi, YuanFeng, Hutchinson, Trevor, Humphries, Oliver, Preston, Thomas, Makita, Mikako, Nakatsutsumi, Motoaki, Köhler, Alexander, Harmand, Marion, Toleikis, Sven, Falk, Kateřina, and Juha, Libor

Published
2023
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9. A XUV and soft X-ray split-and-delay unit for FLASH2

Author

Dreimann, Matthias, primary, Roling, Sebastian, additional, Wahlert, Frank, additional, Eppenhoff, Sven, additional, Kuhlmann, Marion, additional, Toleikis, Sven, additional, Brachmanski, Maciej, additional, Treusch, Rolf, additional, Ploenjes, Elke, additional, and Zacharias, Helmut, additional

Published
2021
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10. Ion emission from plasmas produced by femtosecond pulses of short-wavelength free-electron laser radiation focused on massive targets: an overview and comparison with long-wavelength laser ablation.

Author

Krása, Josef, Nassisi, Vincenzo, Burian, Tomáš, Hájková, Věra, Chalupský, Jaromír, Jelínek, Šimon, Frantálová, Kateřina, Krupka, Michal, Kuglerová, Zuzana, Singh, Sushil Kumar, Vozda, Vojtěch, Vyšín, Luděk, Wild, Jan, Šmíd, Michal, Perez-Martin, Pablo, Pan, Xiayun, Kühlman, Marion, Pintor, Juan, Cikhardt, Jakub, and Dreimann, Matthias

Published
2023
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