This reaction results in two high energy
fission fragments (FF), around 166 MeV in total [10], which subsequently are emitted in opposite directions.
Enclosing the reactors by injecting lead and encasing them in concrete would make it safe to work and live a few kilometres away from the site, but is not a long-term solution for the disposal of spent fuel, which will decay and emit
fission fragments over several thousand years.
When U-235 or Pu-239 atoms fission, they split into two smaller
fission fragments in any of approximately 40 ways for each isotope, resulting in "[s]omething like 80 different
fission fragments" for U-235 or Pu-239.
It was quickly realized that the two new
fission fragments would fly apart with very high energy and that extra neutrons produced in this process would lead to a continuous chain reaction.
The total kinetic energy of
fission fragments of [U.sup.235] or [Pu.sup.239] is found experimentally 20-60 MeV less than Q-value predicted by [DELTA][mc.sup.2].
Topics include development of the photonuclear activation file, nuclear data for minor actinides, differential cross sections of complex particle emission reactions, Monte Carlo simulation of the
fission fragments evaporation process, random matrix theory in statistical analysis of resonances, and nuclear data services.
"
Fission fragments go bombing out of the material and create defect tracks." Although protons penetrate much farther than ions, they tend to make the material radioactive.
It was those small acids that, after the explosion and the release of radioactive substances, served as efficient coagulators, transporting radioactive particles and
fission fragments."
"When the uranium atom decays, it produces two
fission fragments. These
fission fragments are like bullets fired into the carbon structure.
To do it, the reactor fuel has to be arranged so that the
fission fragments can escape.