http://arxiv.org/ftp/arxiv/papers/1202/1202.6603.pdf
*Ultra-Thin Metal Films for Enhanced Solar Absorption* To optimize photonic responsiveness, one of the reasons that nickel is a great LENR material is that it is an ideal reflector of light, specifically infrared light. Furthermore, the ideal thin film thickness of nickel to optimize optical performance is between 10nm and 13 nm. All surface on your Ni/H reactor should be coated with a nickel thin film whose thinness is between 10nm and 13 nm.
