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Results are presented from experimental studies of the neutron emission generated in the collision of deuterium plasma flows produced in discharges in crossed E×H fields and propagating in opposite directions in a neutral gas across an external magnetic field. It is shown that the interaction of oppositely propagating deuterium plasma flows gives rise to the generation of soft X-ray emission and neutron emission from the dd reaction (dd→3He + n) and is accompanied by an almost complete depolarization of the flows and rapid variations in the magnetic field (at a rate of ∼1011 G/s). The measurements were performed at energies and velocities of the flows of up to 600 J and 3.5×107 cm/s, respectively. The plasma density in each flow was ∼1015cm–3. The upper estimates for the astrophysical S factor and the effective cross sections of the dd reaction obtained from our measurements are compared to theoretical calculations and to the results of experiments performed in the MIG high-current accelerator (Institute of High-Current Electronics, Russian Academy of Sciences, Tomsk). © 2005 Pleiades Publishing, Inc. [ABSTRACT FROM AUTHOR]

It is found experimentally that the interaction of plasma flows propagating in opposite directions across a magnetic field is accompanied by periodic local bursts of intense optical and soft X-ray emission. It is shown that periodic variations in the emission intensity from the interaction region are related to the excitation of steady-state self-oscillations in the plasma. By varying the frequency and amplitude of these oscillations, it is possible to satisfy the resonance conditions at certain characteristic plasma frequencies. © 2001 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR]

Results are presented from numerical calculations of the maximum energy of accelerated deuterons as a function of the magnetic field for two models of the formation of the accelerating field in the region where two magnetosonic shock waves collide. The numerical results are compared with the similar experimental dependence. © 2000 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR]

A study is made of the effect of the initial magnetic field magnitude on the energy of deuterium ions accelerated in the collision of two magnetosonic shock waves propagating in a deuterium plasma quasi-perpendicularly to the magnetic field. Experiments were carried out at a constant plasma density of =2.5×10[sup 13]cm[sup –3]. It is found that, as the external magnetic field decreases from 1.4 to 0.7 T and, accordingly, the magnetic Mach number increases from 1.02 to 2.3, the energy of accelerated ions increases from 3.2 to 7.5 MeV. The maximum number of accelerated ions attains 10[sup 5]–10[sup 6] particles per shot. © 2000 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR]