Using ratios of the radionuclides Xenon 133 and Xenon 133m scientists demonstrated that the Chernobyl explosion was a fission criticality explosion and not principally a hydrogen explosion as has been claimed. Also this is the test done to determine if countries are testing nuclear bombs. And I had a question... "What about the neutron beams seen at the Fukushima plant?"
Yes, the fission threshold for uranium 238 is about 1 MeV. There is no fission threshold for uranium 235; thermal (0.025 eV) or even slower neutrons will split a uranium 235 nucleus.
DrTodd13 wrote a comment on the previous version of this video:
Isn't U238 fissile for neutrons that are energetic enough? If I recall, the bomb casings of hydrogen bombs were made partly of U238 which would fission when hit by neutrons produced by the fusion secondary of a hydrogen bomb.
YAY MR DYCHKO WOOOOO
xEventHorizon 8 months ago
Using ratios of the radionuclides Xenon 133 and Xenon 133m scientists demonstrated that the Chernobyl explosion was a fission criticality explosion and not principally a hydrogen explosion as has been claimed. Also this is the test done to determine if countries are testing nuclear bombs. And I had a question... "What about the neutron beams seen at the Fukushima plant?"
jeebug 10 months ago
Yes, the fission threshold for uranium 238 is about 1 MeV. There is no fission threshold for uranium 235; thermal (0.025 eV) or even slower neutrons will split a uranium 235 nucleus.
cewaltham 10 months ago
DrTodd13 wrote a comment on the previous version of this video:
Isn't U238 fissile for neutrons that are energetic enough? If I recall, the bomb casings of hydrogen bombs were made partly of U238 which would fission when hit by neutrons produced by the fusion secondary of a hydrogen bomb.
outreachc21 10 months ago
@outreachc21 I have read the same thing.
AnotherGlenn 4 months ago