Abstract
| Original language | English |
|---|---|
| Journal | Plasma Physics and Controlled Fusion |
| Volume | 51 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2009 |
| MoE publication type | A1 Journal article-refereed |
Fingerprint
Cite this
}
Identity physics experiment on internal transport barriers in JT-60U and JET. / De Vries, P. C.; Sakamoto, Y.; Litaudon, X.; Beurskens, M. N. A.; Brix, M.; Crombe, K.; Fujita, T.; Giroud, C.; Hawkes, N. C.; Hayashi, N.; Joffrin, E.; Mantica, P.; Matsunaga, G.; Oyama, N.; Parail, V.; Salmi, A; Shinohara, K.; Strintzi, D.; Suzuki, T.; Takechi, M.; Takenaga, H.; Tala, Tuomas; Tsalas, M.; Urano, H.; Voitsekhovitch, I.; Yoshida, M.; contributors, JET-EFDA; JT-60 team.
In: Plasma Physics and Controlled Fusion, Vol. 51, No. 12, 2009.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Identity physics experiment on internal transport barriers in JT-60U and JET
AU - De Vries, P. C.
AU - Sakamoto, Y.
AU - Litaudon, X.
AU - Beurskens, M. N. A.
AU - Brix, M.
AU - Crombe, K.
AU - Fujita, T.
AU - Giroud, C.
AU - Hawkes, N. C.
AU - Hayashi, N.
AU - Joffrin, E.
AU - Mantica, P.
AU - Matsunaga, G.
AU - Oyama, N.
AU - Parail, V.
AU - Salmi, A
AU - Shinohara, K.
AU - Strintzi, D.
AU - Suzuki, T.
AU - Takechi, M.
AU - Takenaga, H.
AU - Tala, Tuomas
AU - Tsalas, M.
AU - Urano, H.
AU - Voitsekhovitch, I.
AU - Yoshida, M.
AU - contributors, JET-EFDA
AU - JT-60 team,
PY - 2009
Y1 - 2009
N2 - A series of experiments have been carried out in 2008 at JT-60U and JET to find common characteristics and explain differences between internal transport barriers (ITBs). The identity experiments succeeded in matching the profiles of most dimensionless parameters at the time ITBs were triggered. Thereafter the q-profile development deviated due to differences in non-inductive current density profile, affecting the ITB. Furthermore, the ITBs in JET were more strongly influenced by the H-mode pedestal or edge localized modes. It was found to be difficult to match the plasma rotation characteristics in both devices. However, the wide range of Mach numbers obtained in these experiments shows that the rotation has little effect on the triggering of ITBs in plasmas with reversed magnetic shear. On the other hand the toroidal rotation and more specifically the rotational shear had an impact on the subsequent growth and allowed the formation of strong ITBs.
AB - A series of experiments have been carried out in 2008 at JT-60U and JET to find common characteristics and explain differences between internal transport barriers (ITBs). The identity experiments succeeded in matching the profiles of most dimensionless parameters at the time ITBs were triggered. Thereafter the q-profile development deviated due to differences in non-inductive current density profile, affecting the ITB. Furthermore, the ITBs in JET were more strongly influenced by the H-mode pedestal or edge localized modes. It was found to be difficult to match the plasma rotation characteristics in both devices. However, the wide range of Mach numbers obtained in these experiments shows that the rotation has little effect on the triggering of ITBs in plasmas with reversed magnetic shear. On the other hand the toroidal rotation and more specifically the rotational shear had an impact on the subsequent growth and allowed the formation of strong ITBs.
U2 - 10.1088/0741-3335/51/12/124050
DO - 10.1088/0741-3335/51/12/124050
M3 - Article
VL - 51
JO - Plasma Physics and Controlled Fusion
JF - Plasma Physics and Controlled Fusion
SN - 0741-3335
IS - 12
ER -