We describe measurements, modeling, and mitigation experiments on the effects of anode and cathode plasmas in applied-B ion diodes. We have performed experiments with electrode conditioning and cleaning techniques including RF discharges, anode heating, cryogenic cathode cooling and anode surface coatings that have been successful in mitigating some of the effects of electrode contamination on ion diode performance on both the SABRE and PBFA accelerators. We are developing sophisticated spectroscopic diagnostic techniques that allow us to measure the electric and magnetic fields in the A-K gap, we compare these measured fields with those predicted by our 3-D particle-in-cell (PIC) simulations of ion diodes, and we measure anode and cathode ...
Planar explosive emission diodes operating at moderate pulse energy densities of a few joules per sq...
The continuous high average-power microsecond pulser (CHAMP) ion accelerator is being constructed at...
A 9.25 A low‐pressure (45–55 mTorr) hollow cathode arc discharge has been used to simulate plasma pr...
Particle-in-cell simulations of applied-B ion diodes using the QUICKSILVER code have been augmented ...
The Ion Beam Surface Treatment (IBEST) program is exploring using ion beams to treat the surface of ...
High-energy pulsed-power devices routinely access field strengths above those at which broad-area, c...
The temporal behavior of high-power diodes is closely related to the impedance collapse caused by th...
A model describing formation and evolution of the anode plasma in the accelerating gap of an applied...
Gap closure mechanisms in the pinch reflex diode are studied using cylindrical, two-dimensional, ful...
The quality of the ion beam which is produced by the proton accelerator KALIF depends essentially on...
The self-magnetic-pinch diode is being developed as an intense electron beam source for pulsed-power...
One of the sources of high-power ion beams is an ion diode with isolation by external or self-magnet...
High-energy pulsed-power devices routinely access field strengths above those at which broad-area, c...
The time-evolution of a low aspect ratio, microsecond pulse length, electron beam diode with anode p...
Planar explosive emission diodes operating at moderate pulse energy densities of a few joules per sq...
Planar explosive emission diodes operating at moderate pulse energy densities of a few joules per sq...
The continuous high average-power microsecond pulser (CHAMP) ion accelerator is being constructed at...
A 9.25 A low‐pressure (45–55 mTorr) hollow cathode arc discharge has been used to simulate plasma pr...
Particle-in-cell simulations of applied-B ion diodes using the QUICKSILVER code have been augmented ...
The Ion Beam Surface Treatment (IBEST) program is exploring using ion beams to treat the surface of ...
High-energy pulsed-power devices routinely access field strengths above those at which broad-area, c...
The temporal behavior of high-power diodes is closely related to the impedance collapse caused by th...
A model describing formation and evolution of the anode plasma in the accelerating gap of an applied...
Gap closure mechanisms in the pinch reflex diode are studied using cylindrical, two-dimensional, ful...
The quality of the ion beam which is produced by the proton accelerator KALIF depends essentially on...
The self-magnetic-pinch diode is being developed as an intense electron beam source for pulsed-power...
One of the sources of high-power ion beams is an ion diode with isolation by external or self-magnet...
High-energy pulsed-power devices routinely access field strengths above those at which broad-area, c...
The time-evolution of a low aspect ratio, microsecond pulse length, electron beam diode with anode p...
Planar explosive emission diodes operating at moderate pulse energy densities of a few joules per sq...
Planar explosive emission diodes operating at moderate pulse energy densities of a few joules per sq...
The continuous high average-power microsecond pulser (CHAMP) ion accelerator is being constructed at...
A 9.25 A low‐pressure (45–55 mTorr) hollow cathode arc discharge has been used to simulate plasma pr...