First Evidence of Collective Alpha Particle Effect on TAE Modes in the TFTR D-T Experiment PDF Download
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Author: K. L. Wong
Publisher:
ISBN:
Category : Alpha rays
Languages : en
Pages : 12
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Book Description
Author: K. L. Wong
Publisher:
ISBN:
Category : Alpha rays
Languages : en
Pages : 12
Get Book Here
Book Description
Author: K. L. Wong
Publisher:
ISBN:
Category : Alpha rays
Languages : en
Pages : 12
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Author: Zuoyang Chang
Publisher:
ISBN:
Category : Alpha rays
Languages : en
Pages : 16
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Author: S. J. Zweben
Publisher:
ISBN:
Category : Alpha rays
Languages : en
Pages : 58
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Author: Giuseppe Gorini
Publisher: Springer Science & Business Media
ISBN: 1461303699
Category : Science
Languages : en
Pages : 631
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Book Description
This book of proceedings collects the papers presented at the Workshop on Diagnostics for ITER, held at Villa Monastero, Varenna (Italy), from August 28 to September 1, 1995. The Workshop was organised by the International School of Plasma Physics "Piero Caldirola. " Established in 1971, the ISPP has organised over fifty advanced courses and workshops on topics mainly related to plasma physics. In particular, courses and workshops on plasma diagnostics (previously held in 1975, 1978, 1982, 1986, and 1991) can be considered milestones in the history of this institution. Looking back at the proceedings of the previous meetings in Varenna, one can appreciate the rapid progress in the field of plasma diagnostics over the past 20 years. The 1995 workshop was co-organised by the Istituto di Fisica del Plasma of the National Research Council (CNR). In contrast to previous Varenna meetings on diagnostics, which have covered diagnostics in present-day tokamaks and which have had a substantial tutorial component, the 1995 workshop concentrated specifically on the problems and challenges of ITER diagnostics. ITER (the International Thennonuclear Experimental Reactor, a joint venture of Europe, Japan, Russia, and the United States, presently under design) will need to measure a wide range of plasma parameters in order to reach and sustain high levels of fusion power. A list of the measurement requirements together with the parameter ranges, target measurement resolutions, and accuracies provides the starting point for selecting a list of candidate diagnostic systems.
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Category :
Languages : en
Pages :
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Alpha particle loss was measured during the TFTR DT experiments using a scintillator detector located at the vessel bottom in the ion grad-B drift direction. The DT alpha particle loss to this detector was consistent with the calculated first-orbit loss over the whole range of plasma current I=0.6-2.7 MA. In particular, the alpha particle loss rate per DT neutron did not increase significantly with fusion power up to 10.7 MW, indicating the absence of any new ''collective'' alpha particle loss processes in these experiments.
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Category :
Languages : en
Pages :
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The high power deuterium and tritium experiments on TFTR have produced fusion a parameters similar to those expected on ITER. The achieved[beta][sub[alpha]]/[beta] and the R[triangledown][beta][sub[alpha]] in TFRR D-T shots are 1/2 to 1/3 those predicted in the ITER EDA. Studies of the initial TFTR D-T plasmas find no evidence that the presence of the fast fusion[alpha] population has affected the stability of MHD, with the possible exception of Toroidal Alfven Eigenmodes (TAE's). The initial TFTR DT plasmas had MHD activity similar to that commonly seen in deuterium plasmas. Operation of TFTR at plasma currents of 2.0--2.5 MA has greatly reduced the deleterious effects of MHD commonly observed at lower currents. Even at these higher currents, the performance of TFTR is limited by[beta]-limit disruptions. The effects of MHD on D-T fusion[alpha]'s was similar to effects observed on other fusion products in D only plasmas.
Author:
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Category : Nuclear fusion
Languages : en
Pages : 1024
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Author:
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ISBN:
Category : Science
Languages : en
Pages : 676
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Author: R. V. Budny
Publisher:
ISBN:
Category : Alpha rays
Languages : en
Pages : 56
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