Neutral beam heating of a RFP plasma in MST
Creators
- 1. Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, Wisconsin 53706-1390 (United States)
- 2. Department of Physics and Astronomy, University of California, Irvine, California 92697-4575 (United States)
- 3. Laboratory for Laser Energetics, University of Rochester, 250 E. River Rd, Rochester, New York 14623-1299 (United States)
- 4. Budker Institute of Nuclear Physics, 11, Akademika Lavrentieva Prospect, Novosibirsk 630090 (Russian Federation)
- 5. National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568 (Japan)
Description
Electron temperature is observed to rise due to neutral beam injection (NBI) in the Madison Symmetric Torus (MST). Heating is observed to be 100 ± 50 eV in the core of 200 kA plasmas. This is the first definitive measurement of auxiliary heating of a reversed-field pinch (RFP). This heating is consistent with a 1D classical model which was developed. This 1D model calculates the evolving thermal conductivity and ohmic power input profiles during enhanced confinement, and can calculate NBI deposition and classical fast ion diffusion and slowing. The predicted temperature change is consistent with measured beam heating both during and after enhanced confinement, which is consistent with previous observations that fast ions are well confined and behave roughly classically in the RFP.
Additional details
Identifiers
- DOI
- 10.1063/1.4772763;
Publishing Information
- Journal Title
- Physics of Plasmas
- Journal Volume
- 19
- Journal Issue
- 12
- Journal Page Range
- p. 122505-122505.6
- ISSN
- 1070-664X
- CODEN
- PHPAEN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 44032367
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- AUXILIARY HEATING; BEAM INJECTION; ELECTRON TEMPERATURE; ENERGY BEAM DEPOSITION; EV RANGE 100-1000; MST DEVICE; ONE-DIMENSIONAL CALCULATIONS; PLASMA; PLASMA CONFINEMENT; PLASMA HEATING; POWER INPUT; REVERSE-FIELD PINCH; THERMAL CONDUCTIVITY
- Descriptors DEC
- CLOSED PLASMA DEVICES; CONFINEMENT; DEPOSITION; ENERGY RANGE; EV RANGE; HEATING; PHYSICAL PROPERTIES; PINCH DEVICES; PINCH EFFECT; REVERSED-FIELD PINCH DEVICES; SPACE HEATING; SURFACE COATING; THERMODYNAMIC PROPERTIES; THERMONUCLEAR DEVICES; TOROIDAL PINCH DEVICES
Optional Information
- Notes
- (c) 2012 American Institute of Physics