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Capillary discharge soft X-ray laslng in Ne-like Ar pumped by long current pulses

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Abstract

A capillary discharge soft X-ray laser operating at 46.9 rim on the transition 3p–3s (J=0−1) of the Ne-like Ar has been realized by exciting the active medium with a long half-cycle duration current pulse of 140 ns. The current is produced by discharging a 10 nF water dielectric capacitor, initially charged to voltages lower than 200 kV by a six stage Marx generator, through a 15-cm long capillary channels. The laser amplification has been obtained by properly adjusting all the other experimental parameters. Utilizing a 3-mm in diameter AI2O3 capillary channel initially filled with 0.3 torr of Ar pressure, a laser beam, which has a 4-mrad divergence and a time duration of 1.3 ns, is characterized by a gain of 0.6 ± 0.1 cm−1. The stability of the plasma compression followed by the laser emission is verified.

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Authors and Affiliations

  1. Phys. Dept. University of L’Aquila, gc LNGS of INFN, INFM, via Vetoio, 67010, Coppito, L’Aquila, Italy

    G. Tomassetti, A. Ritucci, A. Reale, L. Palladino & L. Reale

  2. Dept. of Experimental Physics, University of Pecs, Ifjusag u. 6, Pecs 7624, Hungary

    S. V. Kukhlevsky

  3. ENEA Dip. Irmovazione, Divisione Fisica Applicata, Centro Ricerche Frascati, C.P. 65, 00044, Frascati, Italy

    F. Flora & L. Mezi

  4. Institute of Phys. Engineering, Brno Univ. of Technology, Technicka 2, 616 69, Brno, Czech Republic

    J. Kaiser

  5. MISDC of VNIIFTRI, 141570, Mendeleevo, Moscow Region, Russia

    A. Faenov & T. Pikuz

Authors
  1. G. Tomassetti
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  2. A. Ritucci
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  3. A. Reale
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  4. L. Palladino
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  5. L. Reale
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  6. S. V. Kukhlevsky
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  7. F. Flora
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  8. L. Mezi
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  9. J. Kaiser
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  10. A. Faenov
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  11. T. Pikuz
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Tomassetti, G., Ritucci, A., Reale, A. et al. Capillary discharge soft X-ray laslng in Ne-like Ar pumped by long current pulses. Eur. Phys. J. D. 19, 73–77 (2002). https://doi.org/10.1140/epjd/e20020057

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  • DOI: https://doi.org/10.1140/epjd/e20020057

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