What's the difference between gamma rays from different sources? Ask professionals for advice.

The main differences of gamma rays between Co60 and Cs are as follows:

Gamma rays from Co60 have two main energies: 1 173.2KEV and 1332.5KEV.

Its absolute strength is 99.87% and 99.98% respectively.

The half-life is 5.27 years.

The gamma ray of Cs 137 mainly has one kind of energy: 661.66kev.

Its absolute strength is 85%

The half-life is 30. 17 years.

Absolute intensity is the probability of producing this energy ray every time it decays.

For Co60, a specific radioactive source emits two kinds of energy gamma rays at the same time, and the quantity is almost equal, so it can't be controlled independently, and its radiation intensity can't be controlled. Only by controlling the aperture and distance of the shield can the radiation dose be controlled in a certain place. That is to say, for a radioactive source, its radiation quantity and energy are uncontrollable, and the irradiation dose can only be controlled by shielding, distance and other measures.