Methods to improve burst uniformity and efficiency in exploding foil initiators

Patent · Tue Dec 28 00:00:00 EST 2021

OSTI ID:1860209

Rhodes, Mark; May, Chadd M.

Exploding foil initiator apparatus, system, and method that improve the current density in the bridge region by modifying the shape and dimensions of the bridge and related components. The exploding foil initiator reduces burn-back by making areas of the bridge thicker except directly under the flyer. The exploding foil initiator boards are built so the flyer is not connected to the rest of the top cover-lay. This avoids losing energy due to the flyer having to tear away from the solid cover-lay.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-07NA27344
• Assignee: Lawrence Livermore National Security, LLC (Livermore, CA)
• Patent Number(s): 11,209,249
• Application Number: 16/639,974
• OSTI ID: 1860209
• Resource Relation: Patent File Date: 08/17/2018
• Country of Publication: United States
• Language: English