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

Journal Article · Tue Oct 01 00:00:00 EDT 1991 · IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/27.108419· OSTI ID:5566433

Rosenthal, S E ^[1]

---

1. Sandia National Labs., Albuquerque, NM (United States)

This paper reports experiments at the Sandia National Laboratories that have studies the operation of the linear-induction accelerators, HELIA and Hermes III, in both negative and positive polarities. The experiments in positive polarity 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 simulation, 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).

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5566433
• Journal Information: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Plasma Science (Institute of Electrical and Electronics Engineers); (United States) Vol. 19:5; ISSN 0093-3813; ISSN ITPSB
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
ANODES
CANONICAL DIMENSION
CATHODES
ELECTRIC POTENTIAL
ELECTRODES
ELECTRON DRIFT
ELECTRON EMISSION
EMISSION
ENERGY
INDUCTION
LINEAR ACCELERATORS
LINEAR MOMENTUM
MAGNETIC INSULATION
NATIONAL ORGANIZATIONS
OPERATION
POWER TRANSMISSION LINES
SANDIA LABORATORIES
SCALE DIMENSION
SIMULATION
US AEC
US DOE
US ERDA
US ORGANIZATIONS