Abstract

The effect of gamma-radiation on the surface chemical properties of polystyrene was studied by ESCA and FT-IR. Gamma-radiation produces surface >C=O and C-O containing functional groups only, and also causes oxidation to depths > 10 nm as detected by ESCA. FT-IR spectra showed that below the top few molecular layers ester, acid, and carbonyl groups of various types were present. The α,β-unsaturated carbonyl/acid groups form a higher proportion of the total carbonyls with increasing depth. Surface oxidation follows pseudo-first-order kinetics; the extent of interior oxidation is linear with dose.

Gamma radiation effects in amorphous silicon and silicon nitride photonic devices

Qingyang Du, Yizhong Huang, Okechukwu Ogbuu, Wei Zhang, Junying Li, Vivek Singh, Anuradha M. Agarwal, and Juejun Hu
Opt. Lett. 42(3) 587-590 (2017)

Gamma radiation effects on silicon photonic waveguides

Stefano Grillanda, Vivek Singh, Vivek Raghunathan, Francesco Morichetti, Andrea Melloni, Lionel Kimerling, and Anuradha M. Agarwal
Opt. Lett. 41(13) 3053-3056 (2016)

Gamma Radiation Insensitive Optical Glasses*

N. J. Kreidl and J. R. Hensler
J. Opt. Soc. Am. 47(1) 73-75 (1957)

Proton and gamma radiation tests on nonlinear crystals

Ulrich Roth, Michael Tröbs, Thomas Graf, Jürg E. Balmer, and Heinz P. Weber
Appl. Opt. 41(3) 464-469 (2002)

Effects of Gamma Radiation on Cerium-Bearing Phosphate Glasses

Perry B. Alers
J. Opt. Soc. Am. 51(11) 1251-1254 (1961)