K-Absorption Spectrum of Solid Neon

The absorption spectrum of solid Ne measured in the 800-1300 eV region is presented. Two sharp peaks near the K -edge around 865 eV which correspond to the 1 s →3 p and 1 s →4 p transitions in gaseous Ne are attributed to the excitonic transitions. Above the ionization energy of 1 s electron in gaseous Ne, many structures are observed in solid Ne.