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1997 Progress report

Abstract

1997 was another year of intense activity for the ENEA Nuclear Fusion Division in the evolving scenario of fusion research. With respect to the International Thermonuclear Experimental Reactor (ITER), a major review process has started, originate by the wide perception that the difficult financial situation affecting some of the parties would make it very difficult, practically impossible, to secure funding for the project as it stands. To scale down the size and cost of the machine by reducing the technical objectives, while keeping to the programmatic goal of constructing a demonstration reactor (DEMO) as the following step, appears achievable. Progress in physics was substantial during 1997. Analysis of the huge existing database, complemented by the latest results, had led to a better, more accurate scaling for the confinement time on which to base extrapolation to ITER. Studies of the very promising advanced regimes have been pursued on many tokamaks. The Frascati Tokamak Upgrade (FTU) is well placed in this respect since it is equipped with the right tools, lower hybrid and electron cyclotron radiofrequency heating and current drive systems, to explore the new promised land of low transport from the plasma core. The main highlights of FTU operation in 1997  More>>
Authors:
Cecchini, M; Crescentini, L; Ghezzi, L [1] 
  1. ENEA, Centro Ricerche Frascati, Rome (Italy). Nuclear fusion division
Publication Date:
Dec 31, 1997
Product Type:
Technical Report
Report Number:
ETDE-IT-99761555
Reference Number:
SCA: 560300; PA: ITA-99:000688; EDB-99:086285; SN: 99002126601
Resource Relation:
Other Information: PBD: 1997
Subject:
56 BIOLOGY AND MEDICINE, APPLIED STUDIES; ITALIAN ENEA; THERMONUCLEAR REACTIONS; THERMONUCLEAR IGNITION; FT TOKAMAK; CLOSED PLASMA DEVICES; EURATOM; MAGNETOHYDRODYNAMICS
OSTI ID:
678268
Research Organizations:
ENEA, Rome (Italy)
Country of Origin:
Italy
Language:
English
Other Identifying Numbers:
Other: ON: DE99761555; TRN: IT9900688
Availability:
OSTI as DE99761555
Submitting Site:
ITA
Size:
213 p.
Announcement Date:
Oct 07, 1999

Citation Formats

Cecchini, M, Crescentini, L, and Ghezzi, L. 1997 Progress report. Italy: N. p., 1997. Web.
Cecchini, M, Crescentini, L, & Ghezzi, L. 1997 Progress report. Italy.
Cecchini, M, Crescentini, L, and Ghezzi, L. 1997. "1997 Progress report." Italy.
@misc{etde_678268,
title = {1997 Progress report}
author = {Cecchini, M, Crescentini, L, and Ghezzi, L}
abstractNote = {1997 was another year of intense activity for the ENEA Nuclear Fusion Division in the evolving scenario of fusion research. With respect to the International Thermonuclear Experimental Reactor (ITER), a major review process has started, originate by the wide perception that the difficult financial situation affecting some of the parties would make it very difficult, practically impossible, to secure funding for the project as it stands. To scale down the size and cost of the machine by reducing the technical objectives, while keeping to the programmatic goal of constructing a demonstration reactor (DEMO) as the following step, appears achievable. Progress in physics was substantial during 1997. Analysis of the huge existing database, complemented by the latest results, had led to a better, more accurate scaling for the confinement time on which to base extrapolation to ITER. Studies of the very promising advanced regimes have been pursued on many tokamaks. The Frascati Tokamak Upgrade (FTU) is well placed in this respect since it is equipped with the right tools, lower hybrid and electron cyclotron radiofrequency heating and current drive systems, to explore the new promised land of low transport from the plasma core. The main highlights of FTU operation in 1997 were related to providing information relevant to these future developments. Transient production of low transport regimes with electron temperatures of 8-9 keV at the plasma center was obtained by taking advantage of the plasma skin effect and precise electron cyclotron power deposition. High-efficiency current drive at high density using lower hybrid waves was demonstrated. High-confinement pellet-enhanced modes of operation and good ion Bernstein wave coupling through the waveguide-type coupler were also achieved. Concerning the IGNITOR experiment, funds were made available only for continuation of the engineering design activities, and nothing has been released so far for manufacturing the additional components.}
place = {Italy}
year = {1997}
month = {Dec}
}