Yes, the geometry is very specific – 2-12 nanometers.
Higher or lower spacing is no good. In fact, buckyballs (C60) are just a bit too small to experience a Casimir effect, but some forms of CNT (nanotubes) can be part of a Casimir anomaly. For comparison purposes, a sphere of this size (diameter of 5 nanometers) could contain about 150-500 atoms. BTW - these spheres are being engineered in Labs now, and are called quantum dots, and have special electronic properties which are “apparently unrelated” to the Casimir effect, but also curious in the sense of being an inverted structure instead of pore. As it turns out – this dimensional range is also seen in a natural biological process – bioluminescence. The “firefly” effect happens because large molecules about the size of a quantum dot, interact via ions to produce photons of abnormally large energy. This process is called FRET. FRET (Forster radiant energy transfer) can be called a biological version of DCE (Dynamical Casimir) effect. This is important for LENR since there could be a non-fusion thermal anomaly which is related to FRET, and/or DCE, and which may be involved in the Sheehan papers as well. From: Jed Rothwell The “pore storage” of course invokes the dynamical Casimir effect. It can be exothermic. Would those be very small pores? I believe the Casimir effect only occurs in very small dimensions. - Jed
