Photochemical demethylation reactions in solutions of thiazine dyes, in which the dye molecules act as both sensitizer and substrate, are reduced by quenching triple-state dye molecules, returning them to the unreactive ground state. The first passage remains fluidly separated from the second passage. The junction block assembly includes a first center connect cable assembly and a second center connect cable assembly. A reflector diverts the launched ball into the playing field. The housing has on the side of the housing opposite the radiation filter the shape of a gable roof, a hip roof, or a false hip roof, the roof ridge being flattened and facing away from the radiation filter. The method utilizes coherent EM fields to transform solid materials such as silicon and aluminum without significant detectable heat generation.