**3. Methods of particle activation**

Alpha particle Bombardment: Using natural produced alpha particles light elements can be activated, and as far as Pottasium. Such projectile induce the emission of a proton, the liberation of energy and a transmutation, not all the transmutation products are radioactive Neutron Capture: Firstly observed when matter is bombarded with deuteron, which also involve the emission of a proton, as we will illustrate forward.
