Characterization of electron flow in positive-polarity linear-induction accelerators

Conference · Sun Dec 31 23:00:00 EST 1989

DOI:https://doi.org/10.1109/27.108419· OSTI ID:6686828

Rosenthal, S E

Experiments at Sandia National Laboratories have studied the operation of the linear-induction accelerators, HELIA and Hermes 3, in positive polarity. These experiments have provided a unique opportunity to explore the consequences of multiple-cathode electron emission in magnetically insulated transmission lines. An examination of the total energy-canonical momentum distribution of the electrons explains the features of the magnetically insulated flow exhibited by these systems. Simple analysis based on the basic concept of pressure balance, in conjunction with particle-in-cell numerical simulations, shows how the line voltage is related to the anode and cathode currents. Two flow designations are introduced that can apply to multiple-cathode magnetically insulated transmission lines: full-gap flow (FGF), and locally emitted flow (LEF). 16 refs., 15 figs.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6686828
• Report Number(s): SAND-90-1923C; CONF-9009192--5; ON: DE90014998
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700208* -- Fusion Power Plant Technology-- Inertial Confinement Technology
ACCELERATORS
BEAMS
CONFINEMENT
ELECTRON BEAMS
ELECTRON EMISSION
EMISSION
INERTIAL CONFINEMENT
LEPTON BEAMS
LINEAR ACCELERATORS
MAGNETIC INSULATION
PARTICLE BEAMS
PLASMA CONFINEMENT
PLASMA SIMULATION
POWER TRANSMISSION LINES
SIMULATION