The invention concerns an interface device for a fiberoptic communication network. One embodiment of a method, among others, comprises analyzing regions of a semiconductor die with respect to the susceptibility of the region to be exposed to radiation. A plurality of hydraulic passages extend within the spindle body. A rectangular elastomeric seal is engaged with the sidewall peripheral to the post. More specifically, a method is provided for cationically polymerizing olefin monomer by employing the step of using a novel coinitiator in an organic phase or a neat monomer reaction phase, wherein the organic phase is a hydrocarbon solution of the monomer or a halogenated-hydrocarbon solution of the monomer and wherein the neat-monomer reaction phase is a liquid monomer. The central axial flow bore of the flow adapter provides a flow restriction which creates a pressure drop across the flow adapter.