Supersonic heat wave propagation in laser-produced underdense plasma for efficient x-ray generation

M. Tanabe, H. Nishimura, S. Fujioka, K. Nagai, A. Iwamae, N. Ohnishi, K. B. Fournier, F. Girard, M. Primout, B. Villette, M. Tobin, K. Mima

Research output: Contribution to journalConference article

7 Citations (Scopus)

Abstract

We have observed supersonic heat wave propagation in a low-density aerogel target (ρ ∼ 3.2 mg/cc) irradiated at the intensity of 4 × 1014 W/cm2. The heat wave propagation was measured with a time-resolved x-ray imaging diagnostics, and the results were compared with simulations made with the two-dimensional radiation-hydrodynamic code, RAICHO. Propagation velocity of the ionization front very slightly decreased as the wave propagates into the target. The reason of decrease is due to increase of laser absorption region as the front propagates and interplay of hydrodynamic motion and reflection of laser propagation in the target. These features are well reproduced with the simulation.

Original languageEnglish
Article number022076
JournalJournal of Physics: Conference Series
Volume112
Issue numberPart 2
DOIs
Publication statusPublished - 2008 Jun 12
Event5th International Conference on Inertial Fusion Sciences and Applications, IFSA 2007 - Kobe, Japan
Duration: 2007 Sep 92007 Sep 14

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Supersonic heat wave propagation in laser-produced underdense plasma for efficient x-ray generation'. Together they form a unique fingerprint.

  • Cite this

    Tanabe, M., Nishimura, H., Fujioka, S., Nagai, K., Iwamae, A., Ohnishi, N., Fournier, K. B., Girard, F., Primout, M., Villette, B., Tobin, M., & Mima, K. (2008). Supersonic heat wave propagation in laser-produced underdense plasma for efficient x-ray generation. Journal of Physics: Conference Series, 112(Part 2), [022076]. https://doi.org/10.1088/1742-6596/112/2/022076