| Title | Electron thermal transport barrier and magnetohydrodynamic activity observed in Tokamak plasmas with negative central shear |
| Publication Type | Journal Article |
| Year of Publication | 1997 |
| Authors | MR de Baar, G.MD Hogeweij, N.JL Cardozo, A.AM Oomens, F.C Schüller |
| Journal | Physical Review Letters |
| Volume | 78 |
| Number | 24 |
| Pagination | 4573-4576 |
| Date Published | Jun 16 |
| ISBN Number | 0031-9007 |
| Abstract | In the Rijnhuizen Tokamak Project, plasmas with steady-state negative central shear (NCS) are made with off-axis electron cyclotron heating. Shifting the power deposition by 2 mm results in a sharp transition of confinement. The good confinement branch features a transport barrier at the off-axis minimum of the safety factor (q), where q less than or equal to 3, and two magnetohydrodynamic (MHD) instabilities, where one is localized at the off-axis minimum of q and one covers the entire NCS region. The low confinement branch has q > 3 everywhere, no transport barrier, and no MHD activity. |
| DOI | 10.1103/PhysRevLett.78.4573 |
| PID | b3ef479107a4fc7fff8484bfb8af4808 |
Go back one page.
