Fast capillary discharge facility CAPEX-U as a source of the soft X-ray radiation

POSTER

Abstract

Capillary discharges are more perspective resources for lasing in soft x-ray region than other media (free electron lasers, synchrotron sources, harmonic up-conversion of high power visible/IR lasers). After successful experiments on CAPEX device with lasing on Ne-like Ar ($\lambda $ = 46.9 nm) we report on our apparatus CAPEX-U (CAPillary EXperiment Upgrade) with larger transversal dimensions, with transparency along its axis, and with multichannel laser-triggered spark gap, which enables exact synchronization of the detectors and attached experiments. Our motivation for building such new apparatus was not only lasing on Ne-like argon, but also testing a feasibility of amplification at shorter wavelengths (below 20 nm). This paper presents the description of the CAPEX-U apparatus, and the results of axial soft X-ray spectroscopic measurements of the pulsed high-current capillary discharge.

Authors

  • Oleksandr Frolov

    Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 182 00, Prague, Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 182 00 Prague, Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 18200 Prague

  • Karel Kolacek

    Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 182 00, Prague, Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 182 00 Prague, Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 18200 Prague

  • Jiri Schmidt

    Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 182 00, Prague, Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 182 00 Prague, Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 18200 Prague

  • Vaclav Prukner

    Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 182 00, Prague, Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 182 00 Prague, Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 18200 Prague

  • Jaroslav Straus

    Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 182 00, Prague, Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 182 00 Prague, Institute of Plasma Physics, v.v.i., AS CR, Za Slovankou 3, 18200 Prague