Electrical Characteristics of High Energy‐density Exploded Wire Plasmas*

Geometric properties of commutative subalgebras of partial differential operators

“…Although the presence of runaway electrons has been previously reported (MOSHER et al, 1975), the increase in intensity of runaways correlated with the intense pinching has not been previously observed. The correlated nonthermal emission has demonstrated that these runaway electrons interact collectively with the plasma.…”

“…The resistance of the wire plasma was previously measured (MOSHER et al, 1975) using the diode current and voltage with appropriate corrections for series inductance of the diode. In the case of 5 0 p m tungsten wires, the measured resistance is classical.…”

“…Thus, the instability which caused the nonthermal emission does not produce the major fraction of the electron drag compared to binary collisions. Since the dense pinch regions dominate the metallic wire plasma resistance (MOSHER et al, 1975), it is still possible that the resistance of the flare region is anomalous due to the instability.…”

“…With only bremsstrahlung and electron heat conduction to limit the electron temperature, the electrons are calculated (MOSHER et al, 1975) to heat rapidly to the 1-10 keV range and thus the resistance is much lower than that of metallic wire plasmas. As the CDz wire diameter is reduced below 5 x cm, the resistance is anomalous FIG.…”

“…DETAILED X-ray measurements have been reported DOZIER et al, 1977) on exploding-wire plasmas (MOSHER et al, 1975) produced with the Gamble I1 pulse generator. The measurements describe the plasma during the intense pinching state.…”