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NewPhysi
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Where can I find information about the ~82% of U-235 nuclear fission happening and ~18% not happening?
NewPhysi said:Where can I find information about the ~82% of U-235 nuclear fission happening and ~18% not happening?
snorkack said:One possible link:
https://wwwndc.jaea.go.jp/cgi-bin/Tab80WWW.cgi?lib=J40&iso=U235
What do you want to choose as denominator?
The probability of U-235 fission happening depends on various factors such as the energy level of the nucleus, the presence of other particles, and the stability of the nucleus. However, on average, the probability is estimated to be around 1 in 2.5 x 10^17, meaning that for every 2.5 x 10^17 U-235 nuclei, one will undergo fission.
The probability of U-235 fission is calculated using the concept of cross-section, which is a measure of the likelihood of a nuclear reaction occurring. It takes into account the size of the target nucleus, the speed of the incoming particle, and the energy required for the reaction to take place.
The probability of U-235 fission happening can be affected by the energy level of the nucleus, the presence of other particles, and the stability of the nucleus. Additionally, the probability can also be influenced by the type of particle used to induce the reaction and the amount of energy it carries.
No, the probability of U-235 fission happening varies for different nuclei. It depends on the stability and energy level of the nucleus, as well as the type and energy of the particle used to induce the reaction. For example, U-238 has a lower probability of fission compared to U-235 due to its higher stability.
Yes, the probability of U-235 fission happening can be increased by using a higher energy particle, increasing the number of U-235 nuclei present, or by using a moderator to slow down the particles and increase the chances of a successful reaction. Additionally, controlling the conditions of the reaction, such as temperature and pressure, can also affect the probability of fission.