Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

High power switch design for the Nova upgrade laser (Project Hercules). Final report, August 15, 1991--May 31, 1993

Technical Report ·
DOI:https://doi.org/10.2172/10131918· OSTI ID:10131918
 [1]
  1. Texas Tech Univ., Lubbock, TX (United States). Pulsed Power Lab.
A test facility has been constructed to test high power ignitrons using an electrolytic bank. The goal of this project, which was named Hercules (High Energy Research Concerning the Ultimate Lifetime of Experimental Switches), was to test the lifetime and switching characteristics of high power ignitrons for Lawrence Livermore`s laser upgrade program. The main tubes of interest that have been tested were the NL-9000A from Richardson Electronics, and the BK-1002 from English Electric Valve (EEV). Both tubes have stainless steel, cup style anodes. Both tubes were connected in series for the tests. Required test parameters were Ipeak = 300 kA, and Qtransfer = 200 C. During the tests, the BK-1002 tube failed due to ignitor shorting. The average forward voltage drop across the EEV tube was almost twice than the drop across the NL-9000A. After the tube failure, the BK-1002 was replaced by a NL-1057 to continue testing of the NL-9000A.
Research Organization:
Lawrence Livermore National Lab., CA (United States); Texas Tech Univ., Lubbock, TX (United States). Pulsed Power Lab.
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
10131918
Report Number(s):
UCRL-CR--116290; ON: DE94007921
Country of Publication:
United States
Language:
English

Similar Records

Status report on Project Hercules
Conference · Thu Dec 31 23:00:00 EST 1992 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) · OSTI ID:5708171

Recent advances in high-power ignitron development
Journal Article · Sun Mar 31 23:00:00 EST 1991 · IEEE Transactions on Electron Devices (Institute of Electrical and Electronics Engineers); (United States) · OSTI ID:5776356

High current, high Coulomb ignitrons. Final report: Revision 1
Technical Report · Sun Dec 30 23:00:00 EST 1990 · OSTI ID:10168133