Current energetic particle sensors
نویسندگان
چکیده
منابع مشابه
Spaceborne Energetic Particle Instrumentation
The primary thrust of the APL space research program is to develop an understanding of the behavior and ultimate sources of the magnetic and electric fields, plasmas, and energetic particles that permeate the cosmos. We now know, for example, that the solar wind-a fully ionized hydrogen gas moving outward from the sun through the solar system at speeds of many hundreds of kilometers per second-...
متن کاملParticle simulation of energetic particle driven Alfv19 en modes
The mutual nonlinear interactions of shear Alfvén modes and alpha particles can enhance their transport in burning plasmas. Theoretical and numerical works have shown that rapid transport of energetic ions can take place because of fast growing Alfvén modes (e.g. energetic particle driven modes, EPMs). This kind of transport has been observed in experiments as well as in numerical simulations. ...
متن کاملParticle simulation of energetic particle driven Alfvén modes
The results of hybrid MHD-particle simulations of the Alfvén mode dynamics in a reversed-shear beam-heated DIII-D discharge are reported and compared with the experimental observations. Specific attention is devoted to the inclusion, in the numerical model, of nonlinear coupling between different toroidal mode numbers.
متن کاملEnergetic neutral particle production in the cathode sheath of direct-current discharges
Direct measurements and Monte Carlo simulations of the energy distribution of energetic neutrals incident onto the cathode of a dc glow discharge are presented. The measurements are performed by time-of-flight analysis of neutrals escaping through a cathode orifice. The experimental results are found to be in good agreement with Monte Carlo simulations. It is found that commonly-used theories f...
متن کاملEnergetic-particle-induced geodesic acoustic mode.
A new energetic particle-induced geodesic acoustic mode (EGAM) is shown to exist. The mode frequency and mode structure are determined nonperturbatively by energetic particle kinetic effects. In particular the EGAM frequency is found to be substantially lower than the standard GAM frequency. The radial mode width is determined by the energetic particle drift orbit width and can be fairly large ...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Space Physics
سال: 2016
ISSN: 2169-9380,2169-9402
DOI: 10.1002/2016ja022588