Corona discharge the electron-liberation is a high-energy photon from an atom within the plasma body relaxing after excitation from an earlier collision. The use of ionized neutral gas as a source of ionization is further diminished in a negative corona by the high-concentration of positive ions clustering around the curved electrode. Under other conditions, the collision of the positive species with the curved electrode can also cause electron liberation. The difference, then, between positive and negative coronas, in the matter of the generation of secondary electron avalanches, is that in a positive corona they are generated by the gas surrounding the plasma
Negative and positive rights Negative and positive rights Negative and positive rights are rights that oblige either action ("positive rights") or inaction ("negative rights"). These obligations may be of either a legal or moral character. The notion of positive and negative rights may also be applied to liberty rights. To take an example involving two parties in a court of law: Adrian has a "negative right to x" against Clay if and only if Clay is "prohibited" from acting upon Adrian in some way regarding "x". In contrast, Adrian has a "positive right to x" against Clay if and only if Clay is obliged