[en] The invention relates to devices for obtaining intensive ion beams which can be used for various technological operations in a high vacuum (film deposition, doping, passivation and others) and in acceleration engineering. The ion source operates on the basis of a discharge contracted in crossed fields. The source contains a thermionic cathode, coaxial anode, intermediate, emitting and accelerating electrodes, and a magnetic system with an armour-type magnet. To increase the ion extraction efficiency the intermediate electrode is designed as a coaxial yoke, which is one of the poles of the magnetic system, and a cylindrical rod, which is the second pole of the magnetic system and is inserted in the opening in the yoke. The anode is made ring-shaped and is installed inside the magnetic opposite the slit between the poles of the magnetic system

[en] Theoretical and experimental studies on a possibility of using the automatically controlled cross field for increasing the maximum gas kinetic plasma pressure in a three-turn stellarator are performed. Within the framework of a simplified theoretical model various laws of cross field control using feed--- back are analysed. It is shown that the control scheme based on magnetic measurements can ensure necessary accuracy of maintaining equilibrium near the optimum. Experimental data concerning equilibrium effects obtained at the stellarator ''URAGAN'' are in a satisfactory agreement with the theory

[en] A new technique is proposed for converting a continuous beam of charged particles into a bunched beam i.e., a beam which has a pulsed time structure and comes in short bursts. The technique suggested uses previously unrecognized bunching properties of a crossed electric and magnetic field to give the beam the desired time structure. The device does not change the energy or energy resolution of the beam but does degrade the beam emittance. It is thought to be particularly applicable in situations where a conventional gap buncher is unsuitable, such as the bunching of slow ions at high frequencies. (Auth.)

[en] It has long been a problem to get the relative number of rare S spins from the intensity of individual NMR lines in the cross polarization (CP) experiment because of the different CP rates for different S lines and the T_1p effect, which results in an intensity distorted S spectrum. In this article, a scheme is presented for obtaining reliable quantitative information in CP experiment by combining polarization with depolarization of the S spins, which eliminates the effect of different CP rates on intensity distortion. (author). 7 refs.; 1 fig.; 2 tabs

No abstract available

[en] Electrostatic confinement has been used to reduce cross-field diffusion losses in hollow toroidal magnetoplasmas

[en] Unlike a liquid metal or the incompressible conducting fluid of many M.H.D. models a fully ionised plasma consists of two intermingled gases of ions and electrons each constrained to move under the action of electric and magnetic fields. In particular it is pointed out that in crossed E and B fields, measured and defined in the laboratory frame, ion currents may greatly exceed electron currents. Alfven waves and ionising shocks are cases in point. (author)

No abstract available

[en] An analysis of the interaction of e^± with a crossed field revealed that the anomalous magnetic moment μ' must differ considerably from its Schwinger value for a field strength E, H ∼ H₀ = m²c³/eℎ = 4.41x10¹³G in the intrinsic reference frame. Such a crossed-field strength can be attained in the intrinsic reference frame of e^± that move along the crystallographic axes. This is due to the fact that the field strength E along the axes is ∼ Zx10¹⁰V/cm (Z is the atomic number of the crystal material), while the field strength E'≅H'≅γE in the intrinsic system of e^± that have an energy En ∼ 50 GeV is larger than E by a factor of γ = En/m ∼ 10⁵. The effect of spin rotation in bent crystals can be used to observe the variation of μ' in a high-intensity crystal field

No abstract available