- #1
Stephanus
- 1,316
- 104
Dear PF Forum,
I'm interested in environment.
And I want to know about nuclear power plant waste.
In fission reaction:
Neutron + U235 -> Kr 92 + 141 Ba + 3 free neutrons.
What is the radioactive waste in fission power?
Is it in the result Kr92 and 141 Barium?
Is it in the 3 free neutrons?
Where do those free neutrons hit? Another uranium? I read that the a large number of the neutrons are absorbed in a rod to prevent the reaction goes at geometric sequence.
Fusion reaction:
In fusion reaction, I read that the reaction is
D + T -> He + 1 free neutron.
What are the radioactive waste from fusion reaction?
I read that Tritium is radioactive and its half life is 12 years old. But it's the fuel right, not the waste.
Or the radioactive waste comes from the free neutron which hit the tokamak wall?
Thanks for the explanations.
[Edit: I read some links in internet but I haven't had a satisfactory answers.
http://fusionforenergy.europa.eu/understandingfusion/merits.aspx
https://en.m.wikipedia.org/wiki/Nuclear_fusion
https://en.wikipedia.org/wiki/Nuclear_fission
https://en.wikipedia.org/wiki/Radioactive_waste][Edit: in https://en.wikipedia.org/wiki/Radioactive_waste it explains that there many radioactive waste:
Since the fision reaction is: Neutron + U235 -> Kr92 + Ba141]
I'm interested in environment.
And I want to know about nuclear power plant waste.
In fission reaction:
Neutron + U235 -> Kr 92 + 141 Ba + 3 free neutrons.
What is the radioactive waste in fission power?
Is it in the result Kr92 and 141 Barium?
Is it in the 3 free neutrons?
Where do those free neutrons hit? Another uranium? I read that the a large number of the neutrons are absorbed in a rod to prevent the reaction goes at geometric sequence.
Fusion reaction:
In fusion reaction, I read that the reaction is
D + T -> He + 1 free neutron.
What are the radioactive waste from fusion reaction?
I read that Tritium is radioactive and its half life is 12 years old. But it's the fuel right, not the waste.
Or the radioactive waste comes from the free neutron which hit the tokamak wall?
Thanks for the explanations.
[Edit: I read some links in internet but I haven't had a satisfactory answers.
http://fusionforenergy.europa.eu/understandingfusion/merits.aspx
https://en.m.wikipedia.org/wiki/Nuclear_fusion
https://en.wikipedia.org/wiki/Nuclear_fission
https://en.wikipedia.org/wiki/Radioactive_waste][Edit: in https://en.wikipedia.org/wiki/Radioactive_waste it explains that there many radioactive waste:
But where do they come from?The back end of the nuclear fuel cycle, mostly spent fuel rods, contains fission products that emit beta and gamma radiation, and actinides that emit alpha particles, such asuranium-234, neptunium-237, plutonium-238 and americium-241, and even sometimes some neutron emitters such as californium (Cf). These isotopes are formed in nuclear reactors.
Since the fision reaction is: Neutron + U235 -> Kr92 + Ba141]