Real-time plasma MHD feedback control
Microsecond-latency plasma control is real and demonstrated, but only on commercial FPGAs. A rad-hard, TFLOPS-class plasma-control SoC does not exist in any public product catalog. BAE RAD510 delivers ~1,386 MIPS, roughly three orders of magnitude short of 1 TFLOPS.
01 Definition
The use of high-speed diagnostics and computational systems to detect and suppress magnetohydrodynamic (MHD) instabilities in magnetically confined plasmas within microseconds to sub-millisecond timescales.
02 Detailed_Analysis
Real-time plasma MHD feedback control is the active suppression of plasma instabilities using high-speed sensor diagnostics, fast computation, and rapid actuator response. State-of-the-art systems use commercial FPGAs (Xilinx, Zynq) to achieve sub-millisecond response times. KTX at USTC China achieves <50 microsecond total delay at 25 kHz feedback frequency. MAST uses Xilinx Spartan-3E FPGA for real-time NTM phase/amplitude tracking. HBT-EP at Columbia uses FPGA with deep learning CNN for microsecond-latency MHD mode tracking. RFX-mod2 uses Zynq-based ADC devices with sub-millisecond PCS response. ITER RWM control design uses FPGA-based model predictive control with sub-ms sampling. These systems use commercial hardware, not radiation-hardened SoCs.
03 Key_Facts
- ▸ KTX: <50 microsecond delay, 25 kHz feedback
- ▸ MAST: FPGA-based NTM tracking
- ▸ HBT-EP: microsecond-latency via CNN on FPGA
- ▸ RFX-mod2: sub-millisecond PCS response
- ▸ All use commercial FPGAs, not rad-hard SoCs
06 Related_Terms (2)
07 Related_Entities (12)
08 Timeline_Mentions (10)
Project Sherwood established
The U.S. AEC's classified controlled-fusion program begins at LANL and partner labs.
historical-contextChristofilos begins Astron experiment at LLNL
Greek engineer starts E-layer field reversal concept. Earliest compact torus conception. Presented at 1958 Geneva.
historical-contextProject Sherwood declassified at Geneva Conference
Fusion research declassified at 2nd Atoms for Peace conference. Sherwood becomes CTR program.
historical-contextChristofilos Astron experiment at LLNL
The Astron experiment established the field-reversed configuration geometry that prefigured modern FRC research.
historical-contextFirst Formal Documentation of FRC Topology
H.A.B. Bodin publishes a paper in Nuclear Fusion describing 'reversed field loops' within a theta-pinch, providing physical evidence of the FRC state.
fusion-physicsInertial-Confinement Flux-Trapping Model Proposed
T.S. Green and A.A. Newton propose that magnetic flux is lost via rapid convection at the radial Alfvén speed, a foundational theory for FRC formation.
fusion-physicsDiscovery of FRC Anomalous Stability
Experiments at LANL discover that Field-Reversed Configurations (FRCs) are significantly more stable than predicted by MHD theory.
fusion-physicsAstron experiment funding cancelled at LLNL
16-year project ends without achieving field reversal. Compact torus concept disperses to spheromak and FRC research.
historical-contextChristofilos Astron experiment cancelled at LLNL
17-year Astron project ends. Field reversal concept disperses to LANL (FRC) and LLNL/PPPL (spheromak).
historical-contextFoundational FRC Research at LANL
Los Alamos National Laboratory establishes the scientific bedrock for Field-Reversed Configuration (FRC) physics through the FRX experiment series.
fusion-physics09 FAQ
What is Real-time plasma MHD feedback control? ▾
Why does Real-time plasma MHD feedback control matter? ▾
How does Real-time plasma MHD feedback control relate to other concepts? ▾
When did Real-time plasma MHD feedback control appear in the research timeline? ▾
Which entities are associated with Real-time plasma MHD feedback control? ▾
Quick_Facts
- Category
- Physics
- Aliases
- Real-time plasma MHD feedback control, real-time-plasma-mhd-feedback-control, MHD feedback control, plasma control system, PCS
- Sources
- 4
- Related Terms
- 2
- Graph Entities
- 12
- Timeline Events
- 10