How does an exploding foil initiator work

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August undefined, 2024

A narrowed section of the metal then explosively vaporizes when a current pulse passes through it, which shears the mylar foil and the plasma ball pushes it through the hole, accelerating it to very high speed. The impact then detonates the explosive pellet. Diagram of slapper and EBW detonators initiating detonation. See more A slapper detonator, also called exploding foil initiator (EFI), is a detonator developed by Lawrence Livermore National Laboratory, US Patent No. 4,788,913 (Filed 1971, Granted 1988). It is an improvement over the earlier See more • Nuclear weapon design • Triggering sequence See more • Elements of Fission Weapon Design, section 4.1.6.2.2.6 • Modelling and Simulation of Burst Phenomenon in Electrically Exploded Foils See more WebThe activity began with funding Exploding Foil Initiator (EFI) technology in conjunction with RARDE (now QinetiQ and Dstl). This built on the existing high speed switch tube technology already developed at Teledyne e2v. Through the late 1980s and early 1990s, work was concentrated on EFI initiator research and characterisation, explosive

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WebJan 1, 2024 · Under the action of a high pulse current, the explosive metal foil completes the transformation of solid, liquid, gas and plasma in a very short time, forming a high-temperature and high-pressure... WebApr 30, 2024 · Analytical and numerical models, validated against published data, were developed to calculate the velocity and time of arrival duration (ToAD) of the flyer-plasma material at the top of the barrel of an exploding foil initiator (EFI), as commonly used in explosive devices. otterbox for ipad air 5th generation

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WebJul 14, 2013 · Increasing insensitivity demands on initiation trains in missile systems necessitates utilizing high voltage initiators. Exploding Foil Initiator (EFI), also known as Slapper Detonator, is the well–known high voltage detonator that can only be initiated under the action of large electrical currents. EFI is strictly immune to Electrostatic Discharge … WebThe term “initiator” defines a fairly broad group of devices that are intended to trigger an energetic material, be it an explosive, propellant, or pyrotechnic. They are the first portion … WebJan 1, 2024 · Under the action of a high pulse current, the explosive metal foil completes the transformation of solid, liquid, gas and plasma in a very short time, forming a high … rockwell collins livermore

A micro-chip exploding foil initiator based on printed circuit board ...

Exploding-bridgewire detonator - Wikipedia

WebOur Exploding Bridge Wire (EBW) contains a lead-free explosive (CLCP) functioned with an ECOSSE PX-1 Firing Set and initiate secondary booster detonation in wireline guns. Exploding bridge wires (EBW) detonators have a small … http://www.e2v.com/resources/account/download-literature/124 rockwell collins layoffs 2020WebAn exploding wire A projectile with sufficient kinetic energy The concept of the Flying Plate Detonator provides a detonation output from mechanical, electrical and non-explosive … otterbox for ipad mini 6th generation

"WebApr 30, 2024 · Analytical and numerical models, validated against published data, were developed to calculate the velocity and time of arrival duration (ToAD) of the flyer-plasma … " - How does an exploding foil initiator work

How does an exploding foil initiator work

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WebAug 17, 2024 · Exploding foil initiator is a kind of electric explosive device and the primary energy source of weapon system. Importantly, the reliability for the whole weapo Study on … WebMar 9, 2024 · The exploding foil initiator provides a new method of multi-point detonation control. It transmits signals through the circuit without requiring complicated safety components and has the advantages of safety, reliability, small size, and promptness, which make it especially suitable for multi-point initiation control when applied to a warhead.

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WebMay 7, 2024 · Little is known about the shape and curvature of exploding foil initiator (EFI) flyers, especially as they are forming within a finite barrel. This is because the typical barrel materials, such as stainless-steel, hinder observation of the flyer material during flight. WebThe initial shock wave is created by vaporizing a length of a thin wire by an electric discharge. A new development is a slapper detonator, which uses thin plates accelerated by an electrically exploded wire or foil to deliver …

WebAn exploding foil initiator (EFI), also known as Slapper Detonator, are uses to initiate insensitive explosive materials usually in the first stage of an explosive chain, it is a short-pulse electric signal device and contains no primary explosive. It is used to

WebLEEFI = Low Energy Exploding Foil Initiator (EFI) Packaged in a convenient TO-5 can with orientation tab. Inherently safer than hotwire detonators. Qualified to MIL-DTL-23659, … WebTo make the specification consistent with the EFI technology and 1316 safety requirements, the proposed changes require statistical analysis testing at temperature extremes, …

WebEFDI (Exploding Foil Deflagrating Initiator) • LEEFI with HNS-4 to BKNO3 Transition • Based on Slapper Detonator Technology for Warheads • Now Under Development and Qualification HNS-IV Pellet BKNO 3 Deflagration High Voltage Pulse Flyer Slapper Bridge

WebProperties of Exploding Foil Flyer ... Yao Wang et al-X-ray imaging and 3D reconstruction of in-flight exploding foil initiator flyers T. M. Willey et al-This content was downloaded from IP address 207.46.13.18 on 02/05/2024 at 22:53. ... of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI otterbox for iphone 11 ebayWebApr 1, 2015 · Exploding foil initiators (EFIs) are highly suitable for use in inline fuze trains containing only secondary high explosives, mainly due to their insensitivity with respect to electromagnetic disturbances or mechanical stress, their precisely controllable fire characteristics and compact size. During EFI operation various multi-physical phenomena … rockwell collins linkedinWebThe exploding foil itself consists of a narrowing in the copper transmission line. The current will mainly heat this part of the foil. When a critical current and current rise time is exceeded, the foil will turn into a plasma. The plasma pressure and the Lorentz forces of the current will accelerate the flyer through the barrel. otterbox for ipad mini 4WebESADs use an Exploding Foil Initiator (EFI), a key enabling technology for the detonator used in the nuclear weapons programs for decades. On the conventional weapons front, a Low-Energy EFI (LEEFI) has been the only approved technology for ESADs since the mid-1990s. otterbox for ipad pro 11 inchWebJul 3, 2024 · Exploding foil initiators (EFIs), also known as slapper initiators or detonators, offer clear safety and timing advantages over other means of initiating detonation in high … rockwell collins lenexaWebOct 24, 2016 · Exploding Foil Initiator (EFI) flyer layer velocities measured down the barrel of an EFI are presented. Flyer velocity was shown to be proportional to supply voltage and of … otterbox for iphone 11 clear wlamartWebMar 9, 2024 · The exploding foil initiator provides a new method of multi-point detonation control. It transmits signals through the circuit without requiring complicated safety … rockwell collins lübeck