Increased Confinement and {ital {beta}} by Inductive Poloidal Current Drive in the Reversed Field Pinch
- University of Wisconsin, Madison, Wisconsin 53706 (United States)
With the addition of inductive poloidal current drive for current profile control in the Madison Symmetric Torus (MST) reversed field pinch, the magnetic fluctuation amplitude halves, leading to reduced energy and particle transport.A four- to five-fold increase in the energy confinement time to {tau}{sub E}{approximately}5 ms with both decreased Ohmic input power and increased stored thermal energy coincides with record low fluctuation amplitude and record high electron temperature {approximately}600 eV (for MST). {beta}[=2{mu}{sub o}{l_angle}p{r_angle}/B(a){sup 2}] increases from 6{percent} to 8{percent}. Other improvements include reduced electrostatic edge turbulence and plasma impurity content. {copyright} {ital 1996} {ital The American Physical Society}
- OSTI ID:
- 432550
- Journal Information:
- Physical Review Letters, Vol. 78, Issue 1; Other Information: PBD: Jan 1997
- Country of Publication:
- United States
- Language:
- English
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Fivefold confinement time increase in the Madison Symmetric Torus using inductive poloidal current drive
Fivefold confinement time increase in the Madison Symmetric Torus using inductive poloidal current drive