Cooperative Oscillations in a High-Temperature Plasma Formed by Neutral Atom Injection

Desorption of Hydrogen from SmH3-δFilms: Effect of Palladium Overlayer Thickness

“…In the formation of a plasma by neutral atom injection, trapping resulting from the VX B ionization of excited hydrogen atoms has been observed in the Livermore ALICE experiment [1] and in a similar experiment in the UK [2]. This mechanism for the trapping of energetic particles in a magnetic field has been discussed previously in a theoretical paper by J. R. Hiskes [3].…”

“…From an experimental point of view both water and lithium are convenient neutralizers since their vapors are easily pumped by a cold surface. The present measurements were made with proton and deuteron beams having energies less than 50 keV; this is the energy range of present neutral injection experiments [1,2]. Figure 1 is a schematic diagram of the experimental apparatus.…”

Suppression of Convective Losses from a Steady-State Plasma by a Positive-Gradient Field

“…Low-frequency electrostatic oscillations are also detected in these experiments and have been reported previously. 5 In reference 5 these oscillations were identified with the m = 1 low-density convective instability mode calculated by Mikhailovski 8 and Post. 9 The oscillations are stable at very low density, reaching an unstable limit at a density which is predictable from the recent treatment of these effects by Kuo et al 10 Indeed, Kuo and co-workers observe a similar density limitation in the Culham PHOENIX experiment.…”

“…In a steady-state experi-4 C. W. Snyder and M. Neugebauer, to be published. 5 9 In computing the ''correlations" described in this note, a weight of +1 was assigned to a field directed out of or away from the Sun, and vice versa for -1. Each individual set of data did not add up exactly to zero.…”

Advances in Fusion Research

“…Indeed, probe measurements reveal the pressure of a rotating tongue of plasma, looking somewhat like an m = 1 azimuthal mode, near the walls. 10 Some of the observations are shown in Figure 6.11 The curve A is the best estimate for the value to which the density should build up for the indicated injection currents. The x's represent the actual values attained.…”