The role of energetic particles in fusion plasmas
نویسندگان
چکیده
In the burning fusion plasmas of next step devices such as ITER (2001 ITERFEAT Outline Design Report IAEA/ITER EDA/DS/18 (Vienna: IAEA) p 21), the majority of the heating of the fusing fuel will come from the plasma self-heating by fusion born α-particles. Recent advances in theoretical understanding, together with the development of new diagnostic techniques, make this a timely opportunity to survey the role of energetic particles in fusion plasmas and how it projects to future burning plasma devices. (Some figures in this article are in colour only in the electronic version)
منابع مشابه
بررسی شتابدهی ذرات باردار از طریق بازاتصالی مغناطیسی در محیطهای پلاسمایی
Magnetic reconnection, which occurs in high conducting plasmas, changes the topology of magnetic field lines and converts magnetic energy into the kinetic and thermal energy of plasma and also accelerates charged particles. This phenomenon plays an important role in changing the dynamic of laboratory and space plasmas such as fusion tokamaks and sun’s corona. The electric and magnetic fields ge...
متن کاملReview of D - T Experiments Relevant to Burning Plasma
Progress in the performance of tokamak devices has enabled not only the production of significant bursts of fusion energy from deuterium-tritium (D-T) plasmas in the Tokamak Fusion Test Reactor (TFTR) and the Joint European Torus (JET) but, more importantly, the initial study of the physics of burning magnetically confined plasmas. TFTR and JET, in conjunction with the worldwide fusion effort, ...
متن کاملInverse Braking Radiation and Resonance Absorption in Corona Plasmas of Inertial Confinement Fusion
Abstract: In this paper, combining the Maxwell equations with the electron balanceequation, we obtain the inverse braking radiation absorption coefficient in a laser fusioncorona plasma. For a fixed plasma temperature, variations of the absorption coefficientversus the penetration depth into the plasma are illustrated numerically for differentvalues of laser wavelength. ...
متن کاملDusty plasmas: synthesis, structure and dynamics of a dust cloud in a plasma
Plasmas are energetic media that can give birth to dust particles due to the presence of reactive gases or plasma-surface interactions. Industrial plasmas are often concerned by these dust particles that can be either unwanted or useful for the process. For fusion plasmas, production of dust particles from wall erosion is a serious issue for performance and safety reasons. In this article, some...
متن کاملParticle Transport and Electron Density Relaxation due to Stochastic Magnetic Fields in the MST Reversed Field Pinch
Particle transport and its effect on the plasma density distribution remains an important, unresolved issue in magnetic fusion plasmas [1]. Fluctuating magnetic fields can arise from global tearing instabilities that often underlie the sawtooth oscillation [2] and lead to plasma relaxation [3]. Furthermore, magnetic fluctuations are also generated by energetic particles associated with non-indu...
متن کامل