Spherical implosion from one detonator possible?
November 5
different energetic/inert materials, to get a detonation wave that
implodes upon a centre as a uniform sphere?
Lloyd E. Sponenburgh
news:1f1dfd25-510d-4b06...@w6g2000yqw.googlegroups.com:
Were it so, various governments wouldn't spend so much money solving
that problem with multiple initiators and precision-delay devices.
Please build your nuclear weapon elsewhere than in a fireworks group;
rec.pyrotechnics is about fireworks. I'm sure the alt.engr.explosives
guys will have some comments for your review.
LLoyd
Me
<1f1dfd25-510d-4b06...@w6g2000yqw.googlegroups.com>,
November 5 <november...@googlemail.com> wrote:
Anything "May" be possible, but if the Los AlAmos Guys can't figure out
how to do it, and haven't by now, with simulation software running on
the Cray Supercomputers at Livermore Labs, it isn't really a likely way
to go.....
Me Just an Old Time Powderman.......
Peter Fairbrother
While I agree that it's a bit OT for rec.pyrotechnics, and probably for
alt.engr.explosives too, just thought I'd mention that the actual answer
is yes, it is possible:
Section 4.1.6.2.2.3 Advanced Wave Shaping Techniques,
http://nuclearweaponarchive.org/Nwfaq/Nfaq4.html
If you want to discuss the design of nuclear weapons, try
alt.war.nuclear. The technique isn't actually used in nuclear weapons
however.
-- Peter Fairbrother
November 5
Thanks; a feast for the inquisitive mind.
N5
Richard Casady
No. You can come close, close enough to fission all, or nearly all.
of the Pu.
Casady
hhc314
> >news:1f1dfd25-510d-4b06...@w6g2000yqw.googlegroups.com:
>
> >> Is it possible by clever design of the explosive lenses and the use
> > of
> >> different energetic/inert materials, to get a detonation wave that
> >> implodes upon a centre as a uniform sphere?
>
> > Were it so, various governments wouldn't spend so much money solving
> > that problem with multiple initiators and precision-delay devices.
>
> > Please build your nuclear weapon elsewhere than in a fireworks group;
> > rec.pyrotechnics is about fireworks. I'm sure the alt.engr.explosives
> > guys will have some comments for your review.
>
> While I agree that it's a bit OT for rec.pyrotechnics, and probably for
> alt.engr.explosives too, just thought I'd mention that the actual answer
> is yes, it is possible:
>
>
> If you want to discuss the design of nuclear weapons, try
> alt.war.nuclear. The technique isn't actually used in nuclear weapons
> however.
>
>
> - Show quoted text -
Peter, the general answer is no, and while it is remotely possible,
the answer is it isn't very likely and never employed.
Finally, hree suggestions:
Don't ever look to any alt. newsgroup for credible information on
anything.
Find out what a company named EG&G produces, and why strobe bulbs are
used to trigger the multiple detonators.
Finally, since this topic is totally off-topic in rec.pyrotechnics,
I'd suggest that you locate a sci. or engineering newsgroup where it
is remotely on-topic. Were it me, sci.physics might be a good
beginning. Also, Google is your friend!
Harry C. (resident curmudgeon and actually a physicist)
boom.armstrong
Good to see a post from you again Harry. It has been a while.
michael michalchik
wrote:
> Is it possible by clever design of the explosive lenses and the use of
> different energetic/inert materials, to get a detonation wave that
> implodes upon a centre as a uniform sphere?
I suspect that it would be possible if you could mix different
velocity materials continuously in three dimensions. You would want to
conduct a very fast initiation wave around the whole outside. Then you
would need materials distributed radially so that their rate of
detonation compensated for the delay in initiation. The slower
detonating material would also have to be more energetic to compensate
for the energy bleeding away during the slower burn. I doubt we either
have the materials or the processes to create such a distribution in
reality.
Jim Hawkins
Depends how smooth and accurately spherical a wavefront you want. If not
very, then a bunch of equal lengths of detonating cord each with one end on
a booster surrounding the detonator and with the other ends suitably
equi-spaced round the sphere and terminated normal to its surface in small
boosters might be good enough.
But I've never seen it done or tried it myself.
Jim Hawkins
Snag
Flat wave generator . Simple in theory , hard to describe . Think of it as a
series of Y's , each pair of arms initiates the stems of another pair of Y's
. Six deep will give 64 ignition points for the det cord .
--
Snag
Learning keeps
you young !
