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Kumakhov M.A.,Institute for Roentgen Optics
Technical Physics | Year: 2014

The motion of charged particles in a straight hollow dielectric channel with electrified walls is considered in general form. It is shown that the motion of particles in the channel is periodic. In the first approximation, the potential of interaction of particles with the channel walls is harmonic. The relation between the period of oscillations of a particle in the channel and the physical parameters of the channel wall is derived. In a curvilinear channel (e.g., a ring), the resultant potential acquires a new term due to the centrifugal force. The particle in this case performs multiple contactless motion in the ring. At the same time, oscillations of particles in the ring take place. The motion in the ring is accompanied with emission of synchrotron and channeled radiation. If a thin (micrometer) target is introduced into the ring, high-intensity X rays and bremsstrahlung are observed. The directionality of radiation depends on the particle energy. © 2014 Pleiades Publishing, Ltd.

Kumakhov M.A.,Institute for Roentgen Optics
Technical Physics | Year: 2013

A method of organizing counter beams of deuterium and tritium in a ring with electrified walls is suggested. In such a ring, beams of ions are locked in a potential well the height of which is much larger than the energy of colliding particles. In this instance, the phase volume of the ion beams increases due to multiple scattering. Estimates are made of the probability of thermonuclear reactions under these conditions and of the parameters of a thermonuclear reactor based on this principle. A number of risks and hazards that researchers might expect to encounter on this way are considered. © 2013 Pleiades Publishing, Ltd.

Kumakhov A.A.,Institute for Roentgen Optics | Dmitriev I.V.,Institute for Roentgen Optics
Technical Physics | Year: 2011

A new method to measure the anode of X-ray sources is suggested. Using this method, one can not only measure the size of an anode spot but also obtain a 3D intensity distribution in the anode. The anode spot measurement accuracy depends on the size of the focal spot of an X-ray polycapillary lens. © 2011 Pleiades Publishing, Ltd.

Kumakhov M.A.,Institute for Roentgen Optics | Tegaev R.I.,Institute for Roentgen Optics
Technical Physics | Year: 2013

Experimental results concerning the existence of a new physical effect of multiple (many-millioned) rotations of charged particles in a circular hollow electrified glass ring are reported for the first time. Experiments are performed for electron and ion beams. A theoretical model of the interaction of particles with the electrified channel wall is proposed. The effect of acceleration of particles in a circle in which an electrode at a low potential of ∼2 kV is fixed is discovered experimentally. Particles are accelerated in this case to hundreds of kilovolts. Intense radiation in the hard X-ray and γ ranges is generated as a result of interaction of accelerated particles with a thin tungsten filament. A number of important applications of the multiple rotation effect are briefly discussed. © 2013 Pleiades Publishing, Ltd.

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