Two-pulse driving of D+D nuclear fusion within a single Coulomb exploding nanodroplet

Last, Isidore; Peano, Fabio; Jortner, Joshua; Silva, Luis O.
February 2010
Physics of Plasmas;Feb2010, Vol. 17 Issue 2, p022702
Academic Journal
This paper presents a computational study of D+D fusion driven by Coulomb explosion (CE) within a single, homonuclear deuterium nanodroplet, subjected to double-pulse ultraintense laser irradiation. This irradiation scheme results in the attainment (by the first weaker pulse) of a transient inhomogeneous density profile, which serves as a target for the driving (by the second superintense pulse) of nonuniform CE that triggers overrun effects and induces intrananodroplet (INTRA) D+D fusion. Scaled electron and ion dynamics simulations were utilized to explore the INTRA D+D fusion yields for double-pulse, near-infrared laser irradiation of deuterium nanodroplets. The dependence of the INTRA yield on the nanodroplet size and on the parameters of the two laser pulses was determined, establishing the conditions for the prevalence of efficient INTRA fusion. The INTRA fusion yields are amenable to experimental observation within an assembly of nanodroplets. The INTRA D+D fusion can be distinguished from the concurrent internanodroplet D+D fusion reaction occurring in the macroscopic plasma filament and outside it in terms of the different energies of the neutrons produced in these two channels.


Related Articles

  • Effects of variable x-ray preheat shielding in indirectly driven implosions. Landen, O. L.; Keane, C. J.; Hammel, B. A.; Levedahl, W. K.; Armendt, P. A.; Colvin, J. D.; Cable, M. D.; Cook, R.; Haan, S. W.; Dittrich, T. R.; Hatchett, S. P.; Hay, R. G.; Lerche, R. A.; McEachern, R.; Murphy, T. J.; Nelson, M. B.; Suter, L.; Wallace, R. J. // Physics of Plasmas;May96, Vol. 3 Issue 5, p2094 

    The performance of indirectly driven fusion capsules has been improved by mid Z doping of the plastic capsule ablator. The doping increases x-ray preheat shielding leading to a more isentropic compression, higher convergence, and higher neutron yield. A 43 increase in neutron yield is both...

  • Neutron production by fast protons from ultraintense laser-plasma interactions. Yang, J.M.; McKenna, P.; Ledingham, K.W.D.; McCanny, T.; Robson, L.; Shimizu, S.; Singhal, R.P.; Wei, M.S.; Krushelnick, K.; Clarke, R.J.; Neely, D.; Norreys, P.A. // Journal of Applied Physics;12/1/2004, Vol. 96 Issue 11, p6912 

    Tens of MeV proton beams have been generated by interactions of the VULCAN petawatt laser with foil targets and used to induce nuclear reactions in zinc and boron samples. The numbers of 11C, 66Ga, 67Ga, 68Ga, 61Cu, 62Zn, 63Zn, and 69mZn nuclei have been measured and used to determine the proton...

  • The role of nuclear reactions and α-particle transport in the dynamics of inertial confinement fusion capsules. Garnier, Josselin; Cherfils-Clérouin, Catherine // Physics of Plasmas;Oct2008, Vol. 15 Issue 10, p102702 

    This paper is devoted to the study of the deceleration phase of inertial confinement capsules. The purpose is to obtain a zero-dimensional model that has the form of a closed system of ordinary differential equations for the main hydrodynamic quantities. The model takes into account the energy...

  • Creation of locally selective mirror surface on 40BaO-40TiO2-20B2O3 glass by XeCl pulse laser irradiation. Masai, Hirokazu; Mizuno, Shintaro; Fujiwara, Takumi; Benino, Yasuhiko; Komatsu, Takayuki; Mori, Hiroshi // Journal of Materials Research;May2007, Vol. 22 Issue 5, p12 

    Creation of mirror dots, localized areas of smooth surface with a shape of laser beam on a glass material, using a XeCl laser irradiation is reported. Laser irradiation of a 40BaO-40TiO2-20B2O3 sample heated to 300 °C induced a smooth and flat surface, where no scratches caused by a...

  • Neutron irradiation of Mg11B2: From the enhancement to the suppression of superconducting properties. Putti, M.; Braccini, V.; Ferdeghini, C.; Gatti, F.; Grasso, G.; Manfrinetti, P.; Marré, D.; Palenzona, A.; Pallecchi, I.; Tarantini, C.; Sheikin, I.; Aebersold, H. U.; Lehmann, E. // Applied Physics Letters;3/14/2005, Vol. 86 Issue 11, p112503 

    In this letter, we present the effect of neutron irradiation up to fluences of 1.4×1020 cm-2 on the superconducting properties of MgB2. In order to obtain a homogeneously distributed disorder, the experiment was carried out on bulk samples prepared with the 11B isotope. Up to fluences of...

  • Wavelength dependence of the damage threshold of inorganic materials under extreme-ultraviolet free-electron-laser irradiation. Hau-Riege, S. P.; London, R. A.; Bionta, R. M.; Ryutov, D.; Soufli, R.; Bajt, S.; McKernan, M. A.; Baker, S. L.; Krzywinski, J.; Sobierajski, R.; Nietubyc, R.; Klinger, D.; Pelka, J. B.; Jurek, M.; Juha, L.; Chalupský, J.; Cihelka, J.; Hájková, V.; Velyhan, A.; Krása, J. // Applied Physics Letters;9/14/2009, Vol. 95 Issue 11, p111104 

    We exposed bulk SiC and films of SiC and B4C to single 25 fs long free-electron-laser pulses with wavelengths between 13.5 and 32 nm. The materials are candidates for x-ray free-electron laser optics. We found that the threshold for surface-damage of the bulk SiC samples exceeds the fluence...

  • Chain dynamics of poly(ethylene-alt-propylene) melts by means of coarse-grained simulations based on atomistic molecular dynamics. Pérez-Aparicio, R.; Colmenero, J.; Alvarez, F.; Padding, J. T.; Briels, W. J. // Journal of Chemical Physics;1/14/2010, Vol. 132 Issue 2, p024904 

    We present coarse-grained molecular dynamics simulations of poly(ethylene-alt-propylene) (PEP) melts, ranging in chain length from about Ne (the entanglement length) to N=6Ne. The coarse-grained parameters, potential of mean force and bare friction, were determined from fully atomistic molecular...

  • Advances in HYDRA and its applications to simulations of inertial confinement fusion targets. Marinak, M. M.; Kerbel, G. D.; Koning, J. M.; Patel, M. V.; Sepke, S. M.; McKinley, M. S.; O'Brien, M. J.; Procassini, R. J.; Munro, D. // EPJ Web of Conferences;2013, Issue 59, p1 

    A new set of capabilities has been implemented in the HYDRA 2D/3D multiphysics inertial confinement fusion simulation code. These include a Monte Carlo particle transport library. It models transport of neutrons, gamma rays and light ions, as well as products they generate from nuclear and...

  • A method for predicting fracture resistance of material in cyclic loading under viscoelastoplastic deformation and neutron irradiation conditions. Margolin, B.; Buchatskii, A.; Gulenko, A.; Fedorova, V.; Filatov, V. // Strength of Materials;Nov2008, Vol. 40 Issue 6, p601 

    We analyze the available methods for prediction of fatigue fracture resistance, which allow for material creep in a deformation cycle and neutron irradiation. Benefits and drawbacks of the available methods are discussed. We present a new method for the fatigue fracture strength prediction,...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics