Operation of a high impedance applied-B extraction ion diode on the SABRE positive polarity linear induction accelerator

Conference · Wed Jul 01 00:00:00 EDT 1992

OSTI ID:10153241

Hanson, D L; Cuneo, M E; McKay, P F; Maenchen, J E; Coats, R S; Poukey, J W; Rosenthal, S E; Fowler, W E; Wenger, D F; Bernard, M; Chavez, J R; Stearns, W F

We present results from initial experiments with a high impedance applied-B extraction diode on the SABRE ten stage linear induction accelerator (6.7 MV, 300 kA). We have demonstrated efficient coupling of power from the accelerator through an extended MITL (Magnetically Insulated Transmission Line) into a high intensity ion beam. Both MITL electron flow in the diode region and ion diode behavior, including ion source turn-on, virtual cathode formation and evolution, enhancement delay, and ion coupling efficiency, are strongly influenced by the geometry of the diode insulating magnetic field. For our present diode electrode geometry, electrons from the diode feed strongly influence the evolution of the virtual cathode. Both experimental data and particle-in-cell numerical simulations show that uniform insulation of these feed electrons is required for uniform ion emission and efficient diode operation.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 10153241
• Report Number(s): SAND-92-1206C; CONF-920515-17; ON: DE92015933
• Resource Relation: Conference: 9. international conference on high power particle beams,Washington, DC (United States),25-29 May 1992; Other Information: PBD: [1992]
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
43 PARTICLE ACCELERATORS
LINEAR ACCELERATORS
BEAM EXTRACTION
INERTIAL CONFINEMENT
POWER TRANSMISSION LINES
MAGNETIC FIELDS
PLASMA SIMULATION
OPERATION
IMPEDANCE
ION BEAM FUSION REACTORS
ION SOURCES
ION BEAMS
700411
430302
INERTIAL CONFINEMENT DEVICES
INJECTION AND EXTRACTION SYSTEMS