"Heat based technologies have the added requirement to maximize temperature rise, which implies minimizing radiation in the thermal infrared band. Thus there are conflicting requirements of strong absorption in the visible, with minimum emission in the far infrared range; the figure of merit for this is termed selectivity. "
The requirement called for here is for minimum emission in the far infrared range. Minimum emission means refection. Nickel meets the requirement because it has minimum emission in the far infrared range. "This paper has studied absorption in ultra-thin layers of nickel, gold and silver. It is shown that nickel possesses optical properties that make it ideal for use in solar thermal and solar thermionic applications and that there is an optimum thickness for maximising absorption across the solar spectrum of ~10-13nm." In the Ni/H reactor, the dimension of the nickel nanowire such be in the 10-13 nm range. This is confusing because it is referring to absorption in the visible range. However, The ability of nickel to reflect light in the far infrared range makes it ideal for LENR applications. On Wed, May 28, 2014 at 6:02 PM, <mix...@bigpond.com> wrote: > In reply to Axil Axil's message of Mon, 28 Apr 2014 02:37:40 -0400: > Hi, > [snip] > >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. > > How do you get "reflector" from "Absorption"? > > > Regards, > > Robin van Spaandonk > > http://rvanspaa.freehostia.com/project.html > >
