The state of polymerization of pentacosa-10,12-diynoic acid (12-8 diac
etylene) in the form of Langmuir-Blodgett (LB) multilayer films agains
t both gamma and UV radiation has been studied. The response was inves
tigated by observing the changes in optical transmission at a number o
f different wavelengths following irradiation. The motivation for the
work was provided by the possibility that LB films could function as a
radiation dosimeter system in the dose range of interest to the radia
tion processing industry.