"Gamma rays are almost produced alongside alpha and beta"
Do you mean "always produced"?
yes thanks I'll change it
It might be useful to mention that Gamma-rays are generally associated with nuclear transitions, while X-rays are generated by electronic transitions. Gamma-rays are usually more energetic than X-rays, but this is not always the case. For example the 14.4 keV gamma-ray from Co-57 -> Fe-57, is less energetic than many X-rays.
Also, gamma rays can be formed by matter/antimatter interactions, such as electron-positron annihilation.
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