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Englishexploding bridge wire detonator;
EBW detonator
Frenchdétonateur à fil explosant; détonateur à fil à exploser; détonateur FE;
détonateur avec amorce à pont; détonateur AP
Spanishpuente explosivo
Russianмостик электровоспламенителя
Chinese 爆炸桥丝式雷管
Arabic
مفجر سلك قنطرة التفجير
Cross-Ref exploding foil initiator; triggering system
Note Eng Small electrical conductor that explosively vaporizes when a fast, high-current electrical pulse is passed through it. It is part of an electrically driven explosive detonator, a device used in the detonation of ordnance, nuclear devices and in a variety of civilian industrial applications using explosives. It is classified by the IAEA as a nuclear-related dual-use item.
The difference between an exploding bridgewire and an ordinary bridgewire used in a low energy electric primer, does not necessarily lie in the physical shape or material of the wire. The difference is in the application of energy. In an exploding bridgewire system, a relatively large amount of energy is applied very rapidly into the bridgewire. Due to the very small cross section of the wire, the current heats the wire through the melting, boiling and vaporization phases. For proper function of an exploding bridgewire, this energy must be applied at such a fast rate that the wire material phase change is restricted due to inertia. When this inertia is overcome, vaporization of the wire occurs as an explosion giving off thermal energy and a shock wave. The resulting shock wave is then used to initiate a secondary explosive.

To trigger a nuclear weapon, multiple bridgewire sets must work within a fraction of a microsecond to achieve simultaneity and ensure uniform compressions in the implosion system.

Variants: exploding wire detonator; exploding bridge (EB); exploding bridge detonator
Variant spelling: exploding bridgewire detonator
Note Frn Petit conducteur électrique qui se vaporise avec un effet explosif lorsqu'une impulsion électrique rapide à haute intensité passe par ledit conducteur.

En pyrotechnie, un fil explosant ("fil explosé" est déconseillé) est un fil métallique qui explose lorsqu'il est parcouru par un courant électrique intense, et utilisé pour provoquer l'amorçage d'une composition pyrotechnique.

Termes connexes:
exploding bridge (EB) = amorce à pont (AP)
exploding bridge wire (EBW) = fil à exploser (FE)
Note Rus взрываемый проводник
Note Arb قنطرة التفجير
E(def.): http://www.risi-usa.com/0products/8td/page01.html (May 2003);
E: Rhodes, Richard. The making of the atomic bomb. New York, Simon and Schuster. 1986, p.655;
E: Carey Sublette “Nuclear Weapons FAQ” at < http://quantum.uos.ac.kr/etc/nw.htm> or < http://gawain.membrane.com/hew/> (October 2003)
E/F: IAEA INFCIRC/254;
E/F(variante): IAEA INFCIRC/254;
E/F(variante): INFCIRC/254/Rev.4/Part 2 Guidelines for transfers of nuclear-related dual-use equipment, materials, software and related technology (March 2000);
E/F: INFCIRC/254/Rev.7/Part 2 (February 2006) & S/2006/814 (Oct 2006);
F: C. Héraud, expert pyro X 30607;
S: http://www.emersis.org/apuntes/explosiv.html;
R: RTS consulted 5 March 2012;
S: http://www.mcx.es/sgcomex/mddu/dobleuso.htm -- Secretaría General de Comercio Exterior -- España
C:《英汉科学技术大词典》人民邮电出版社,1998年,深圳
A: IAEA term;
Subject nuclear science
Geo-Entity
Organization IAEA, UNSCOM
DBName Miniglossaire anglais-français sur les procédés de séparation isotopique et la mise au point de l'arme nucléaire, 1992, Revision 2003.