J. Phys. Chem. A 2003, 107, 3543-3551
3543
Comparison of Energy Deposition Modes in Polyethylene Films by Megaelectronvolt Range Neutrons, Electrons, Protons, and r Particles as Monitored by Covalent Attachment of Doped Pyrene Molecules† Gerald O. Brown,§ Noel A. Guardala,‡ Jack L. Price,‡ and Richard G. Weiss*,§ Department of Chemistry, Georgetown UniVersity, Washington, D.C. 20057-1227, and Carderock DiVision, NaVal Surface Warfare Center, 9500 MacArthur BouleVard, West Bethesda, Maryland 20817 ReceiVed: October 22, 2002; In Final Form: January 3, 2003
The selectivity and efficiency of the covalent attachment of pyrene molecules to chains of polyethylene (PE) films by various forms of ionizing radiation (neutrons, electrons, protons, and R particles) have been examined while varying several aspects of the reactions. The results are compared with those from irradiations by >300 nm (300 nm (
