Board Thread:General Discussion/@comment-25814498-20150505201606/@comment-25814498-20151221125212

Oooh, a sciency one. I think I might be able to help you with this.

There are generally three types of radiation which are refered to in physics as Alpha, Beta and Gamma, meaning you may be able to have three different forms of this ability. Alpha radiation consists of Alpha particles, two neutrons and two protons, and is generally the most dangerous form of radiation as it is the most ionising. Essentially, the alpha particles ionise the DNA in our body cells and cause them to mutate, or even die in large enough doses, causing cancer and other dangerous conditions such as radiation sickness, however, this generally only happens if they are ingested as most of them will be absorbed by the upper layers of dead skin on our bodies. Beta particles are the second most ionising and consist of a highly charged electron which is fired from the nucleus. As I said, these particles are much less ionizing due to how small they are, but can still be dangerous if someone is exposed to them for long periods of time. Gamma radiation, is the least ionizing and is simply a high energy burst that is emmited from the nucleus. Because it consists of particles that have zero mass, very little ionization occurs when a particle is exposed to itt, although it does happen.

There is a slight problem however. What your talking about is less radiation, and more nuclear fission, and while the latter does emit radiation, it isn't generally what causes all of the nuclear hell fire we know and love. Radiation is just a by product of the process, so just making your Nen take on the properties of it wouldn't produce the intense heat and light you speak of.