Fast neutron and heavy ion bombardment of Si2N2O

Abstract
A non-crystalline Si2N2O is formed by bombardment by ∼ 1016 Argon (3MeV) ions/cm2 or by ∼ 3. 2 × 1020 fast neutron (E>1MeV)/cm2. The factor of ∼ 3 × 104 lower fluence for heavy ions is compared to other reported values for heavy ion and fast neutron effects. The damage cross-section for Ar(3MeV) ions is 0. 03 ± 0. 01nm2 and for fast neutrons approximately 10−6nm2. The non-crystalline Si2N2O has many characteristics of a glass.