Rotational Instability (n=2)
01 Executive_Summary
The primary destructive mode for FRCs, where the plasma cross-section deforms into a rotating ellipse and hits the wall. This issue was definitively solved on the FRX-C device using weak quadrupole magnetic fields, a breakthrough that extended plasma lifetimes from tens to hundreds of microseconds.
03 Deep_Dive_Intelligence
Overview
The primary destructive mode for FRCs, where the plasma cross-section deforms into a rotating ellipse and hits the wall. This issue was definitively solved on the FRX-C device using weak quadrupole magnetic fields, a breakthrough that extended plasma lifetimes from tens to hundreds of microseconds.
Entity Type: Technology — Rotational Instability (n=2) represents a specific technology or capability.
Source Documents
Intelligence derived from 3 source documents:
07 Key_Findings
- ▸ Entity Type: Technology — Rotational Instability (n=2) represents a specific technology or capability.
- ▸ LANL FRC Research History Uncovered: This report analyzes Los Alamos National Laboratory’s foundational research into Field-Reversed Configurations conducted between 1975 and 1991. It details how the FRX experimental series achieved brea
09 Timeline_Mentions (3)
LANL Field-Reversed Experiment (FRX) Series
Foundational research at Los Alamos National Laboratory (FRX-A, B, C) masters the control of the n=2 rotational instability in FRCs using quadrupole magnetic fields.
fusion-physicsFRX-B Operations and Anomalous Stability Discovery
Upgraded experiment FRX-B identifies the n=2 rotational instability and discovers that FRCs are 100x more stable than MHD theory predicts.
fusion-physicsFRX-C Quadrupole Stabilization Breakthrough
The FRX-C experiment at LANL demonstrates that weak quadrupole magnetic fields can suppress the n=2 rotational instability, extending FRC lifetimes to 300 microseconds.
fusion-physics10 FAQ
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Source_Documents 3 FILES
External_References 2 REFS
Type: technology
Region: intel-base
Last updated: 2026-08-09