OBSERVATION OF NEW BRANCH OF TOROIDAL ALFVEN EIGENMODES IN TFTR

Authors
FREDRICKSON ED BELL MG BUDNY RV CHANG Z CHENG CZ FU GY MAZZUCATO E NAZIKIAN R JANOS AC MCGUIRE KM MAJESKI R PHILLIPS CK SCHILLING G TAYLOR G WILSON JR
Citation
Ed. Fredrickson et al., OBSERVATION OF NEW BRANCH OF TOROIDAL ALFVEN EIGENMODES IN TFTR, Nuclear fusion, 35(12), 1995, pp. 1457-1461
Citations number
7
Categorie Soggetti
Phsycs, Fluid & Plasmas","Physics, Nuclear
Journal title
Nuclear fusion → ACNP
ISSN journal
00295515
Volume
35
Issue
12
Year of publication
1995
Pages
1457 - 1461
Database
ISI
SICI code
0029-5515(1995)35:12<1457:OONBOT>2.0.ZU;2-B
Abstract
Experimental observations are presented of a new branch of the toroida l Alfven eigenmode spectrum during ICRF heating of plasmas on TFTR. Th e identification of the second branch is based largely on direct measu rements of the toroidal mode numbers of the toroidal Alfven eigenmodes and by the differences in the time evolution of the frequency spectru m between the new branch and the original toroidal Alfven eigenmodes. The new branch has so far only been observed in relatively low edge q (= 4-4.5) plasmas.