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Excitation Of Alfven Cyclotron Instability By Charged Fusion Products Intokamaks
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Book Synopsis Excitation of Alfven Cyclotron Instability by Charged Fusion Products in Tokamaks by : C.Z. Cheng
Download or read book Excitation of Alfven Cyclotron Instability by Charged Fusion Products in Tokamaks written by C.Z. Cheng and published by . This book was released on 1994 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis EXCITATION OF ALFVEN CYCLOTRON INSTABILITY BY CHARGED FUSION PRODUCTS INTOKAMAKS. by : N. N. Gorelenkov
Download or read book EXCITATION OF ALFVEN CYCLOTRON INSTABILITY BY CHARGED FUSION PRODUCTS INTOKAMAKS. written by N. N. Gorelenkov and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Excitation of Alfven Cyclotron Instability by Charged Fusion Products in Tokamaks by :
Download or read book Excitation of Alfven Cyclotron Instability by Charged Fusion Products in Tokamaks written by and published by . This book was released on 1994 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The spectrum of ion cyclotron emission (ICE) observed in tokamak experiments shows narrow peaks at multiples of the edge cyclotron frequency of background ions. A possible mechanism of ICE based on the fast Alfven Cyclotron Instability (ACI) resonantly excited by high energy charged products ([alpha]-particles or protons) is studied here. The two-dimensional ACI eigenmode structure and eigenfrequency are obtained in the large tokamak aspect ratio limit. The ACI is excited via wave-particle resonances in phase space by tapping the fast ion velocity space free energy. The instability growth rates are computed perturbatively from the perturbed fast particle distribution function, which is obtained by integrating the high frequency gyrokinetic equation along the particle orbit. Numerical examples of ACI growth rates are presented for TFTR plasmas. The fast ion distribution function is assumed to be singular in pitch angle near the plasma edge. The results are employed to understand the ICE in Deuterium-Deuterium (DD) and Deuterium-tritium (DT) tokamak experiments.
Book Synopsis Alfven Cyclotron Instability and Ion Cyclotron Emission by :
Download or read book Alfven Cyclotron Instability and Ion Cyclotron Emission written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-dimensional solutions of compressional Alfven eigenmodes (CAE) are studied in the cold plasma approximation. For finite inverse aspect ratio tokamak plasmas the two-dimensional eigenmode envelope is localized at the low magnetic field side with the radial and poloidal localization on the order of a/[radical]m and a/(fourth root of m), respectively, where m is the dominant poloidal mode number. Charged fusion product driven Alfven Cyclotron Instability (ACI) of the compressional Alfven eigenmodes provides the explanation for the ion cyclotron emission (ICE) spectrum observed in tokamak experiments. The ACI is excited by fast charged fusion products via Doppler shifted cyclotron wave-particle resonances. The ion cyclotron and electron Landau dampings and fast particle instability drive are calculated perturbatively for deuterium-deuterium (DD) and deuterium-tritium (DT) plasmas. Near the plasma edge at the low field side the velocity distribution function of charged fusion products is localized in both pitch angle and velocity. The poloidal localization of the eigenmode enhances the ACI growth rates by a factor of[radical]m in comparison with the previous results without poloidal envelope. The thermal ion cyclotron damping determines that only modes with eigenfrequencies at multiples of the edge cyclotron frequency of the background ions can be easily excited and form an ICE spectrum similar to the experimental observations. Theoretical understanding is given for the results of TFTR DD and DT experiments with[upsilon][sub[alpha]0]/[upsilon][sub A]1 and JET experiments with[upsilon][sub[alpha]0]/[upsilon][sub A] 1.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-10 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1995 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fusion Energy Update written by and published by . This book was released on 1979 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ion Cyclotron Emission from Charged Fusion Products by : G. A. Cottrell
Download or read book Ion Cyclotron Emission from Charged Fusion Products written by G. A. Cottrell and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Two-stream Cyclotron Radiative Instabilities Due to the Marginally Mirror-trapped Fraction for Fustion Alphas in Tokamaks by :
Download or read book Two-stream Cyclotron Radiative Instabilities Due to the Marginally Mirror-trapped Fraction for Fustion Alphas in Tokamaks written by and published by . This book was released on 1995 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is shown here that the marginally mirror-trapped fraction of the newly-born fusion alpha particles in the deuterium-tritium (DT) reaction dominated tokamak plasmas can induce a two-stream cyclotron radiative instability for the fast Alfven waves propagating near the harmonics of the alpha particle cyclotron frequency [omega]{sub c{alpha}}. This can explain both the experimentally observed time behavior and the spatially localized origin of the fusion product ion cyclotron emission (ICE) in TFTR at frequencies [omega] ≈ m[omega]{sub c{alpha}}.
Download or read book Nuclear Fusion written by and published by . This book was released on 2002-12 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2018 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Alfven Cyclotron Instability and Ion Cyclotron Emission by : N. N. Gorelenkov
Download or read book Alfven Cyclotron Instability and Ion Cyclotron Emission written by N. N. Gorelenkov and published by . This book was released on 1995 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the Workshop on the Current-Driven Electrostatic Ion-Cyclotron Instability, July 9/10, 1987, Innsbruck, Austria by : R. Schrittwieser
Download or read book Proceedings of the Workshop on the Current-Driven Electrostatic Ion-Cyclotron Instability, July 9/10, 1987, Innsbruck, Austria written by R. Schrittwieser and published by World Scientific Publishing Company. This book was released on 1988 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Alfvén/ion Cyclotron Waves by : Barry Hulett Mauk
Download or read book Alfvén/ion Cyclotron Waves written by Barry Hulett Mauk and published by . This book was released on 1978 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interpretation of Ion Cyclotron Emission from Sub-Alfvénic Fusion Products in the Tokamak Fusion Test Reactor by :
Download or read book Interpretation of Ion Cyclotron Emission from Sub-Alfvénic Fusion Products in the Tokamak Fusion Test Reactor written by and published by . This book was released on 1995 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1992 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt: