Regarding : possible ways to maximize EVO production in a spark based LENR system.
As stated in his last lecture on his work, Dr. Egely is correct in that crack based LENR systems have major disadvantages over a spark based plasma system.
One of Dr. George Egely’s reactor design objectives as reflected in his video is to maximize the production of Cluster explosions after the initiation of the input spark.
I believe that the production of these explosions are associated with the production of EVOs by the initiation of the spark.
So let us consider the mechanism of how sparks might produce EVOs. It has been experimentally shown that nanoparticles can produce the LENR reaction when those particles are pumped with a laser. Furthermore, spark production of Nano particles is a well known method of nanoparticle manufacture in industry.
The Advantages of Spark Discharge Generation for Manufacturing of Nanoparticles with Tailored Properties
Synthesis of Nanoparticles by Spark Discharge as a Facile and Versatile Technique of Preparing Highly Conductive Pt Nano-Ink for Printed Electronics
It is reasonable to believe that maximizing the production of Nano and micro particle production with each spark initiation is the key to increasing the productivity of the LENR reaction. The spark is the major source of input energy consumption and this usage might well be minimized to increase COP.
The key to this nanoparticle production maximization goal is the formulation of the electrodes that are ablated with each spark initiation. Also such an electrode design will mitigate the production of electrode corrosion via transmutation because the electrode material gradually becomes a component of the plasma.
For example, the electrode used by T. H. Moray’s device was formed from sulfur, lead, copper, and aluminum. When a spark ablated this type of electrode, a large number of sulfur based nanoparticles were generated. These nanoparticles became the seeds for EVO creation. An optical cavity is produced by such a nanoparticle on the particles’ surface that will produce excitons and photons to form polaritons.
In detail, Polaritons are quasi-particles that are formed when photons couple strongly with excitons. They are half-light and half-matter. Polaritons are created by strong coupling between light and the optical transitions of matter.
Surface plasmon polaritons (SPPs) are created by coupling light with fundamental electron excitations at metal–dielectric interfaces. The nanoparticle supplies this interface. The particles’ small size produced the intense curvature (polaritons love sharp points) that optimized polariton production. The strongest radiation of plasmons prefers the nanometre scale of nanoparticles. SPPs have been investigated theoretically at the interface between silver metal and a hybrid system containing silver metal nanoparticles.
Surface plasmon polaritons at an interface between silver and quantum dots hybrid nanocomposite
Localized surface plasmon
Furthermore, Egely has produced the LENR reaction in dusty (carbon powder) plasma using microwave pumping. This system has produced extreme transmutation.
Some ideas on how to produce nanoparticles using sparks
An electrode comprised of a hollow nickel tube that is packed with silicon nanoparticles at its center.
Use noble gases as was done in the Papp engine. Xenon will produce nanoparticles when sparked. I beleive this method is being used in Rossi’s solid state microreactor to produce “electron clusters”.
The second step to activate the polariton creation process is to generate EMF pumping.
I believe that a laser diode might supply such coherent EMF pumping.
A similar coherent microwave pumping tech might be provided using a maser diode