Artificial Radioactivity





Artificial (Induced) Radioactivity

I.Curie and F. Joliot (1934) introduced a new term, i.e., artificial radioactivity during the study of the following nuclear reaction:

^{27}_{13} Al + ^3_2 He \to ^{30}_{15} P* + ^1_0n \\ ^{30}_{14} P* \to ^{30}_{14} Si + ^0_1 e (positron)

In this process radioactive phosphorus is prepared artificially, which further disintegrates. They also used ^{10}_{5} B \text{and} ^{24}_{12} Mg isotopes and obtained radioactive ^{13}_7N \text{and} ^{27}_{14} Si respectively.

Now-a-days proton, deutron, neutron etc are also used as projectiles and different emitting particles are obtained.



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