Design of a replacement Marx generator for the Mevex x-ray machines

Author

Jones, Andrew ; Briscall, S. ; Buck, J. ; Clough, Steve ; Cooper, G. ; Jeffries, Gary ; Rickard, L. ; McLean, James ; Provis, Robert ; Sinclair, M. ; Steeden, A. ; Webb, Kevin ; Williams, Tyson

Author_Institution

Atomic Weapons Establ., Aldermaston, UK

fYear

2013

fDate

16-21 June 2013

Firstpage

1

Lastpage

4

Abstract

A replacement Marx generator for one of AWE´s flash radiographic machines is required to mitigate component obsolescence. The design uses twelve 250 nF capacitors to charge a 14 nF Blumlein to 700 kV. For ease of maintenance the generator is removable from the oil tank by use of a rail system. Electrostatic codes have been used to design a new earthing system with access to the hidden capacitor terminals. The paper describes the design and the results of the Marx construction and high voltage commissioning into a resistive load.

Keywords

X-ray apparatus; earthing; electrostatics; power capacitors; pulse generators; pulsed power supplies; radiography; AWE flash radiographic machine; Mevex X-ray machine; capacitance 14 nF; capacitance 250 nF; earthing system; electrostatic code; hidden capacitor terminal; oil tank; rail system; replacement Marx generator; voltage 700 kV; Capacitors; Electric breakdown; Electrodes; Fuel storage; Generators; Grounding; Stress;

fLanguage

English

Publisher

ieee

Conference_Titel

Pulsed Power Conference (PPC), 2013 19th IEEE

Conference_Location

San Francisco, CA

ISSN

2158-4915

Type

conf

DOI

10.1109/PPC.2013.6627667

Filename

6627667