This older paper shows the very sharp peak at ~11 microns which explains many astronomical observations. "Infrared properties of SiC particles" Mutschke et al.
http://arxiv.org/pdf/astro-ph/9903031.pdf In fact, it is now generally accepted that SiC (Silicon Carbide) has its phonon-polariton mid-gap is around 11 microns. This details is in pursuit of one hypothesis about the HotCat of Rossi - and the proper terahertz superradiance parameters for the HotCat and its SiC tube (if applicable). BTW the absorption spike of SiC is extraordinarily sharp which would reinforce the notion that there is a positive feedback loop around a resonance point. The plasmon/polariton connection to THz radiation in the far IR spectrum could be one key to robust LENR, as we seem to find in the HotCat. The paper by Hagelstein, Cravens and Letts http://lenr-canr.org/acrobat/LettsDstimulatio.pdf ...suggests that beat frequencies in various ranges around 15 THz are resonant for Pd-D reactions with the peak at 21 THz but this has no relevance to SiC since it is absent in that experiment. The cosmological data seems to find a peak at around 27 THz for SiC in a situation (space) where there is far more H than D. Therefore for Pd-D one would be interested in 15 THz is 20 micron photon wavelength and has a mass energy of .062 eV which is equivalent to 447 C (836 F and 720 K). But now, since Rossi is using Ni-H instead of deuterium - and with stimulation by superradiant IR instead of a laser beat frequency (in this hypothesis) we seem to be finding that the 11 micron photon, or 27+ THz is what we are after. This temperature range, although high is commonly used in industry for metal processing, but it is pushing the limits of material strength for continuous energy application but has been used in molten salt fission reactors. 27 THz is 11 micron photon wavelength and has a mass energy of .113 eV which is equivalent to 1038 C ( 1900 F and 1311 K). Conclusion: IF the plasmon polariton resonance of SiC is intrinsic to the gain of the Hot Cat, which could be one conclusion which can be drawn from the recent testing done by Levi & the Swedes - then to obtain optimized stimulation via plasmons, the tube furnace should be heated to maintain a temperature of about 1038 C or 1900 F ... which is a yellow forging temperature... This would be the temperature of the SiC tube and not the exterior, which could be in the 800 C range. ... catch-22 the melting point of 310 stainless steel is 2650 deg F and it would be quite soft in this range and unable to hold much pressure. However, the steel tube in the HotCat is supported by the SiC except on the two ends which would need to be capped with a ceramic, if this temperature were to be used. Perhaps the ideal temperature (assuming this calculation is accurate) is too extreme for real world applications. However, I have a strong suspicion that Rossi (or an adviser who has succeeded Focardi) is way ahead of everyone else on plasmons/polaritons... and that this is precisely why he developed the HotCat in the first place. If so, what we will see in the next version is probably a lower outside temperature, possibly due to insulation, and a hotter inside temperature. If a window is added - the glow will be intensely yellow with a tinge of orange. Jones
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