CHEMICAL AND OPTICAL AMPLIFICATION OF RADIATION EFFECTS IN POLYMERS CONTAINING DONOR AND ACCEPTOR ADDITIVES

Ionizing radiation causes coloring and a decrease in solubility (in aq ueous alcohol) of the polyvinylethylal layer containing donor (dipheny lbenzylamine), acceptor (hexabromodimethylsulfone), and chemical sensi tizer (dimethylaminobenzaldehyde) additives. Under conditions of optic al and chemical amplification of latent image, an absorbed dose that p rovides an optical density of 0.2 at the absorption maximum of colored product (450 nm) is similar to 0.3 Gy for 3-MeV electron and X-ray ir radiations, and dose P-0.5 at which the polymeric layer retains thickn ess h/h(0) = 0.5 (where ho is the initial film thickness) of the expos ed regions after complete dissolving of unexposed areas is similar to 0.3 and similar to 0.8 Gy for X-ray and electron-beam irradiation, res pectively.