Recent TWOQUICK particle simulations of one- and two- stage transmission lines and diodes on PBFA and SABRE

Conference · Fri Dec 31 04:00:00 EST 1993

OSTI ID:10160452

Poukey, J W; Cuneo, M E; Lockner, T R

This paper presents recent particle simulation studies of the pulsed-power machines PBFA and SABRE. The code used is the 2-D electromagnetic TWOQUICK. For SABRE we emphasize the single-stage case and compare with experiment. Here the voltage adder, magnetically-insulated-transmission-line (MITL), and proton applied-B extraction diode are all included in the fully time-dependent simulations. Results include vacuum wave precursor effects vs. cathode turn-on threshold, and the sheath-retrapping benefits of diode undermatching. For PBFA we emphasize the 2-stage case and compare with experiments using lithium ions. Here we include the transmission lines and MITLs feeding the 2-stage barrel diode. Results show that good operation is critically dependent on careful B-field shaping in the feeds and diode.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 10160452
• Report Number(s): SAND--93-2730C; CONF-940634--2; ON: DE94013825
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700310
700411
INERTIAL CONFINEMENT
INERTIAL CONFINEMENT DEVICES
ION BEAM FUSION REACTORS
LITHIUM IONS
MAGNETIC FIELD CONFIGURATIONS
PARTICLE BEAM FUSION ACCELERATOR
PLASMA CONFINEMENT
T CODES
THERMIONIC DIODES
TWO-DIMENSIONAL CALCULATIONS