2019, Shikanov, A., Vovchenko, E., Kozlovskii, K., Isaev, A., Plekhanov, A., Lisovskii, M., Шиканов, Александр Евгеньевич, Вовченко, Евгений Дмитриевич, Козловский, Константин Иванович, Плеханов, Андрей Александрович

© Published under licence by IOP Publishing Ltd.Based on experimental and computer simulation the acceleration of deuterons from laser plasma in a strong non-stationary magnetic field was studied. The possibility of reaching an energy of ∼100 keV, corresponding to the effective course of the nuclear reactions D (d, n) 3He and T (d, n) 4He, was demonstrated. YAG: Nd3+ laser (W ≤ 0.85 J, τ ≈ 10 ns) was used in the experiment with focusing laser radiation on a deuterated polyethylene target. The high voltage pulse generator with a conical spiral coil was used to generate a high-speed magnetic field (2•107 T/s). A mathematical model of the process is proposed. According to this model, the acceleration of a laser plasma is analyzed by means of a computer. The algorithm is based on a numerical solution of the system of Newton-Lorentz equations.

2019, Vovchenko, E. D., Kozlovskij, K. I., Shikanov, A. E., Karimov, A. R., Isaev, A. A., Plekhanov, A. A., Deryabochkin, O. V., Вовченко, Евгений Дмитриевич, Козловский, Константин Иванович, Шиканов, Александр Евгеньевич, Каримов, Александр Рашатович, Плеханов, Андрей Александрович, Дерябочкин, Олег Владимирович

© 2019, Pleiades Publishing, Ltd.The collective acceleration of laser plasma ions in a magnetic field generated by a powerful fast-growing current pulse in a low-inductive conical spiral is studied. The velocity of ions for a number of elements which significantly differ in atomic weight are obtained on the basis of collector measurements. The maximum velocity of both light (lithium) and heavy (lead) ions exceed the value of 108 cm/s; for ions of lead, the corresponding energy amounts to a value of ∼1 MeV. A mathematical model of ion acceleration is proposed and simulation results are compared with the experiment.