Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!julius.cs.uiuc.edu!rpi!bu.edu!att!cbnews!cbnews!military From: karish@mindcraft.com (Chuck Karish) Newsgroups: sci.military Subject: Re: Thermonuclear Trigger Summary: Fission trigger? Message-ID: <1990Dec7.012233.2025@cbnews.att.com> Date: 7 Dec 90 01:22:33 GMT References: <1990Dec3.050137.1908@cbnews.att.com> <1990Dec4.002646.10188@cbnews.att.com> Sender: military@cbnews.att.com (William B. Thacker) Organization: Mindcraft, Inc. Lines: 19 Approved: military@att.att.com From: karish@mindcraft.com (Chuck Karish) In article <1990Dec4.002646.10188@cbnews.att.com> henry@zoo.toronto.edu (Henry Spencer) writes: |The fission explosion |used to compress and heat the fusion package is *not* called a "sparkplug". |All current fusion bombs do need that one. The question is whether current |fusion bombs need a *second* fission assembly, inside the fusion assembly, |to actually ignite the fusion reaction. That's what a "sparkplug" is. It |is reported that US fusion bombs used to use sparkplugs, but that modern |ones do not need them. What about the polonium/beryllium igniters that were used in the first fission bombs? Are they still in use? -- Chuck Karish karish@mindcraft.com Mindcraft, Inc. (415) 323-9000 Brought to you by Super Global Mega Corp .com