Title :
A High Current, High Voltage Solid-State Pulse Generator for the NIF Plasma Electrode Pockels Cell
Author :
Arnold, P.A. ; Barbosa, F. ; Cook, E.G. ; Hickman, B.C. ; Brooksby, C.A.
Author_Institution :
Lawrence Livermore Nat. Lab., Livermore
Abstract :
Summary form only given. A high current, high voltage, all solid-state pulse modulator has been developed for use in the Plasma Electrode Pockels Cell (PEPC) subsystem in the National Ignition Facility. The MOSFET-switched pulse generator, designed to be a more capable plug-in replacement for the thyratron-svvitched units currently deployed in NIF, offers unprecedented capabilities including burst-mode operation, pulse width agility and a steady-state pulse repetition frequency exceeding 1 Hz. Capable of delivering requisite fast risetime, 17-kV flattop pulses into a 6-Omega load, the pulser employs a modular architecture characteristic of the inductive adder technology, pioneered at LLNL for use in acceleration applications, which keeps primary voltages low (and well within the capabilities of existing FET technology), reduces fabrication costs and is amenable to rapid assembly and quick field repairs.
Keywords :
MOSFET; Pockels effect; plasma devices; pulse modulation; pulsed power supplies; MOSFET-switched pulse generator; burst-mode operation; plasma electrode Pockels cell; solid-state pulse generator; steady-state pulse repetition frequency; Electrodes; Frequency; Ignition; Plasmas; Pulse generation; Pulse modulation; Solid state circuits; Space vector pulse width modulation; Steady-state; Voltage;
Conference_Titel :
Plasma Science, 2007. ICOPS 2007. IEEE 34th International Conference on
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0915-0
DOI :
10.1109/PPPS.2007.4346165
