title: Prepulse minimization in KALI-5000.
abstract: A pulse power system (1 MV, 50 kA, and 100 ns) based on Marx generator and Blumlein pulse forming line has been built for generating high power microwaves. The Blumlein configuration poses a prepulse problem and hence the diode gap had to be increased to match the diode impedance to the Blumlein impedance during the main pulse. A simple method to eliminate prepulse voltage using a vacuum sparkgap and a resistor is given. Another fundamental approach of increasing the inductance of Marx generator to minimize the prepulse voltage is also presented. Experimental results for both of these configurations are given.
authors: Accelerator and Pulse Power Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India. ddpkumar@barc.gov.in
authors: D Durga Praveen
authors: DD
authors: Kumar
authors: S
authors: S
authors: Mitra
authors: K
authors: K
authors: Senthil
authors: Vishnu K
authors: VK
authors: Sharma
authors: S K
authors: SK
authors: Singh
authors: A
authors: A
authors: Roy
authors: Archana
authors: A
authors: Sharma
authors: K V
authors: KV
authors: Nagesh
authors: D P
authors: DP
authors: Chakravarthy