Degradation Spectra and the G-values for Ionization and Excitation of the Mixtures of Noble Gases

Degradation spectra of electrons and the W-values in the mixtures of He–Ne, He–Ar, Ne–Ar, and Ne–Kr irradiated by 100 keV electrons have been calculated by using the binary-encounter theory and the theory of the degradation spectrum. On the basis of these calculations, the Jesse effect, the negative Jesse effect, and the non-metastable Penning effect have been reconsidered. It was shown that at least a part of the negative Jesse effect and the non-metastable Penning effect are explicable as due to the degradation spectra of electrons.