General > General Technical Chat
Oppenheimer Movie Review
David Hess:
--- Quote from: msuffidy on July 29, 2023, 03:42:17 am ---It seems to me that you are working with a bomb material that is pretty much always putting out some neutrons, so you would not like to like just handle it.
--- End quote ---
The original plutonium samples which were tested came from a giant mass spectrometer used to separate the plutonium, so were pure Pu239 with a very low spontaneous fission rate. The plutonium that came from the reactor later however had considerable Pu240 and the measured spontaneous fission rate was way too high to support the gun type weapon as designed. That is when they knew they had a problem and seriously considered the implosion design.
The lower the spontaneous fission rate is, the more time is available to assemble a critical mass. Real designs include some way to apply a burst of neutrons to the compressed core at the optimum time, and starting out with a higher number of free neutrons produces greater yield.
Bud:
So many nuclear experts here, what are you guys doing on Electronics forum :popcorn:
David Hess:
--- Quote from: Bud on July 30, 2023, 02:56:59 am ---So many nuclear experts here, what are you guys doing on Electronics forum :popcorn:
--- End quote ---
Conversion weapon design is just a hobby.
DonKu:
"The Day After Trinity" is the story of Oppenheimer and the development of the atomic bomb. The skeletons on sidewalks it shows are suitable for a "Terminator" movie.
https://en.wikipedia.org/wiki/The_Day_After_Trinity
https://duckduckgo.com/?q=%22day+after+trinity%22&t=h_&iax=videos&ia=videos
coppice:
--- Quote from: Bud on July 30, 2023, 02:56:59 am ---So many nuclear experts here, what are you guys doing on Electronics forum :popcorn:
--- End quote ---
There are far more electronics engineers than physicists working on nuclear weapons.
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