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[en] When a dense molecular beam injects perpendicularly into a tokamak plasma, the background electrons enter into molecular beam along the magnetic field lines would encounter a series of inelastic collisions, result in energy and momentum losses. This will induce an accumulation of electrons near the boundary of the molecular beam and form a double layer, its shielding effect makes the molecular beam penetrating longer distance
Journal
Chinese Science Abstracts; ISSN 1005-8923; 
; v. 7(5); p. 633-635
; v. 7(5); p. 633-635
[en] Using a relatively simple semiclassical model, it is shown that transient, induced molecular negative ions (TIMNI), are produced through a potential barrier interaction between cold electron collisions and polarizable molecules in plasma. Such new negative ions lead to radio-frequency absorption in such discharges. The calculated radio-frequency absorption frequencies are consistent with earlier experimental measurements. (authors)
Journal
Nukleonika; ISSN 0029-5922; ; v. 53(3); p. 123-126
; v. 53(3); p. 123-126
[en] This year, three main topics of research and development have been pursued at the REX-ISOLDE facility low-energy stage, complementary to the energy upgrade of the postaccelerator. These concern the ion cooling method tests, the charge exchange process study in the buffer gas of the Penning trap REXTRAP, and the molecular beam injection into the trap and REXEBIS ion source. We report here on some progress in these different investigations. (orig.)
Journal
European Physical Journal. A; ISSN 1434-6001; ; v. 25(Suppl.1); p. 739-741
; v. 25(Suppl.1); p. 739-741
[en] The reactor systems papers presented at the Innsbruck Conference can be conveniently divided into four categories: tokamaks; magnetic confinement, non-tokamaks; inertial confinement; and special topics that include plasma engineering and alternate applications of fusion
Source
International Atomic Energy Agency, Vienna (Austria); Nucl. Fusion; Suppl. 1979; v. 3 p. 479-485; ISBN 92-0-130279-7; ; 1979; v. 3 p. 479-485; IAEA; Vienna; 7. international conference on plasma physics and controlled nuclear fusion research; Innsbruck, Austria; 23 - 30 Aug 1978
; 1979; v. 3 p. 479-485; IAEA; Vienna; 7. international conference on plasma physics and controlled nuclear fusion research; Innsbruck, Austria; 23 - 30 Aug 1978
[en] This paper is devoted to the high frequency emission during the injection of powerful electron beam in the Northward flight of the Araks experiments in the frequency band between the plasma frequency and the upper hybrid frequency. This emission is correlated with the front of the electron beam injection; it reaches its maximum amplitude a few milliseconds after the beginning of an electron pulse and then decreases continuously to a background value. The dynamics of plasma mode depending on pitch-angle, beam-energy, rocket rotation and distance between the gun and the receiver are presented in this paper
Journal
Annales de Geophysique; ISSN 0003-4029; ; v. 36(3); p. 333-340
; v. 36(3); p. 333-340
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