Cavity Pressure Acceleration (CPA) is a technique for accelerating dense plasma streams by utilizing laser-generated plasma pressure within a spatially confined region. This approach has been proposed as an alternative to the classical ablative acceleration of plasma. Initially, the primary goal of this approach was to create a dense plasma stream (a theoretical macroparticle delivering energy/momentum) suitable for experiments related to Impact Fast Ignition. In recent experimental sessions, we used targets equipped with cavities lined with deuterated polyethylene ([Formula: see text]) foils and powder. These targets were irradiated with a [Formula: see text] PALS sub-kilojoule, low-contrast laser beam ([Formula: see text]), focused to an intensity of [Formula: see text] within a [Formula: see text] pulse. The scheme has proven to be highly efficient in converting laser energy into high-energy interaction products, such as high-density plasma streams and protons. We observed neutron yields among the highest achieved to date in Deuterium-Deuterium laser-induced experiments, even when compared to facilities with lasers operating at significantly higher energies and intensities. 1D hydrodynamic code used to simulate plasma parameters in the targets confirmed the high potential of the method, regardless of the driving laser wavelength.

Faculty of Electrical Engineering Czech Technical University Prague 166 27 Prague Czech Republic

Faculty of Mathematics and Physics Charles University Prague 180 00 Prague Czech Republic

Faculty of Nuclear Sciences and Physical Engineering Czech Technical University Prague 115 19 Prague Czech Republic

Institute of Physics AS CR Prague 182 21 Prague Czech Republic

Institute of Plasma Physics and Laser Microfusion Warsaw 01 497 Warsaw Poland

Institute of Plasma Physics AS CR Prague 182 00 Prague Czech Republic

Military University of Technology 00 908 Warsaw Poland

National Science Center Kharkiv Institute of Physics and Technology 61108 Kharkiv Ukraine

Zobrazit více v PubMed

Borodziuk, S. & Kostecki, J. Studies of hypervelocity impact problem by means of laser-target experiments: A new approach. DOI

Demchenko, N. & Rozanov, V. Macroparticle acceleration by a laser-plasma stream. DOI

Borodin, V. et al. The acceleration of macroparticles by a picosecond laser pulse. DOI

Minin, V., Minin, I. & Minin, O. Cumulative plasma jet formation for acceleration of macroparticles.

Badziak, J. et al. Efficient acceleration of a dense plasma projectile to hyper velocities in the laser-induced cavity pressure acceleration scheme. DOI

Jungwirth, K. et al. The prague asterix laser system. DOI

Murakami, M. et al. Impact ignition as a track to laser fusion. DOI

Watari, T. et al. Experimental investigation to demonstrate impact fast ignition scheme. DOI

Basov, N. G., GusKov, S. Y. & Feoktisov, L. P. Thermonuclear gain of ICF targets with direct heating of ignitor. DOI

Tabak, M. et al. Ignition and high gain with ultrapowerful lasers. DOI

Murakami, M. et al. Innovative ignition scheme for ICF-impact fast ignition. DOI

Murakami, M. et al. Impact ignition as a track to laser fusion. DOI

Borodziuk, S. et al. Cavity pressure acceleration: An efficient laser-based method of production of high-velocity macroparticles. DOI

Borodziuk, S. et al. Forward and backward cavity pressure acceleration of macroparticles. DOI

Borodziuk, S.

Borodziuk, S.

Chodukowski, T. et al. Neutron production in cavity pressure acceleration of plasma objects. DOI

Eidmann, K. et al. Interaction of [Image: see text] laser radiation with thin foil targets. DOI

Marczak, J., Jach, K. & Swierczynski, R. Numerical modeling of laser-matter interaction in the region of “low’’ laser parameters. DOI

Jach, K. et al.

Kasperczuk, A. & Pisarczyk, T. Application of automated interferometric system for investigation of the behaviour of a laser-produced plasma in strong external magnetic fields.

Ing, H., Noulty, R. A. & McLean, T. D. Bubble detectors: A maturing technology. DOI

Hladik, D. Neutron yield measurement using silver activation counter.

Lanter, R. & Bannerman, D. The silver counter: A detector for bursts of neutrons. Tech. Rep., Los Alamos Scientific Lab., Univ. of California, N. Mex. (1966).

Tchorz, P., Szymanski, M., Rosinski, M., Chodukowski, T. & Borodziuk, S. Capabilities of Thomson parabola spectrometer in various laser-plasma- and laser-fusion-related experiments. DOI

Marczak, J., Jach, K. & Sarzynski, A. Numerical modeling of laser-matter interaction.

Daido, H. et al. Neutron production from a shell-confined carbon-deuterium plasma by [Image: see text] laser irradiation. DOI

Jungwirth, K. et al. The prague asterix laser system.

Norreys, P. A. et al. Neutron production from picosecond laser irradiation of deuterated targets at intensities of 10e19 w/cm2. DOI

Key, M. H. et al. Hot electron production and heating by hot electrons in fast ignitor research. DOI

Disdier, L., Garçonnet, J.-P., Malka, G. & Miquel, J.-L. Fast neutron emission from a high-energy ion beam produced by a high-intensity subpicosecond laser pulse. DOI

Karsch, S. High-intensity laser generated neutrons: A novel neutron source and new tool for plasma diagnostics. PhD thesis, Ludwig-Maximilians-Universitat Munchen (2002).

Madison, K. W., Patel, P. K., Allen, M., Price, D. & Ditmire, T. Investigation of fusion yield from exploding deuterium-cluster plasmas produced by 100-tw laser pulses. DOI

Habara, H. et al. Ion acceleration from the shock front induced by hole boring in ultraintense laser-plasma interactions. PubMed DOI

Norreys, P. A. et al. Observation of ion temperatures exceeding background electron temperatures in petawatt laser-solid experiments. DOI

Lu, H. Y. et al. Efficient fusion neutron generation from heteronuclear clusters in intense femtosecond laser fields. DOI

Karasik, M. et al. Acceleration to high velocities and heating by impact using nike krf laser. DOI

Lee, S., Park, S., Cha, H. & Kim, K. N. Spatial and temporal profile of charged particles emitted from a deuterated polystyrene solid target driven by a femtosecond laser. DOI

Krasa, J. et al. Observation of repetitive bursts in emission of fast ions and neutrons in sub-nanosecond laser-solid experiments. DOI

Bang, W. et al. Optimization of the neutron yield in fusion plasmas produced by coulomb explosions of deuterium clusters irradiated by a petawatt laser. PubMed DOI

Krasa, J. et al. Generation of fast neutrons through deuteron acceleration at the pals laser facility. DOI

Curtis, A. et al. Ion acceleration and d-d fusion neutron generation in relativistically transparent deuterated nanowire arrays. DOI

Tchorz, P. et al. Proton beams generated via thermonuclear deuterium-deuterium fusion by means of modified cavity pressure acceleration-type targets as a candidate for proton-boron fusion driver. DOI

Schroeder, A. B. et al. The imagej ecosystem: Open-source software for image visualization, processing, and analysis. PubMed DOI PMC

Klir, D. et al. Efficient neutron production from sub-nanosecond laser pulse accelerating deuterons on target front side. DOI

Azechi, H. et al. Experimental evidence of impact ignition: 100-fold increase of neutron yield by impactor collision. PubMed DOI