I wanted to clarify the design and operation of my energy multiplier which can provide high power and heat to a spacecraft or rover in vacuum. It can even operate in microgravity.
The Design
The energy multiplier is an open-ended Sapphire tube. This setup ensures vacuum inside the tube without a mechanical vacuum pump which may malfunction. The tube has a +130kV ionizer on its top corner. A 100-micron Uranium (238) Deuterium (UD₃) wire would be fed to the ionizer to ionize Uranium to U+92 and Deuterium to D+. These ions would be accelerated toward the Tungsten Deuterium mesh at the bottom of the tube due to its -130 kV potential. Magnetic lenses would focus the ion beam to increase the probability of fusion and fission at the target. The tube would be surrounded by high voltage induction coil to harvest the EMF generated during fission. At the top of the tube there would be a Sapphire prism to direct the incandescent light generated by the Tungsten mesh. The prism protects the delicate GaAs solar panel from the harmful radiation of the fission. GaAs would have a heatsink to cool it during its operation. There would be a suppressor grid in front of the ionizer. This is to protect the ionizer from reverse current shorts. Finally, Peltier modules at the bottom of the tube convert the heat generated by the target into electricity.
The Operation
The ionizer would ionize the Uranium and Deuterium atoms. The potential at the ionizer should be enough to strip all the electrons of the Uranium atom. Else we would not experience a shattering effect of the atom. The ionized atoms would be focused towards the negatively charged target by the magnetic lens. This allows the ionizer to be placed on the side of the tube to allow room for the prism. The focusing of the ion beam would increase the probability of fusion and fission at the target. Once a Deuterium atom hits another Deuterium atom at the target, they would fusion due to high kinetic energy of the ionized Deuterium. The fusion would probabilistically generate a Tritium atom which is better for the upcoming fusion reactions. Most importantly, the fusion would generate a high energy neutron. If the ionized Uranium atom captures this neutron, then it would fast fission. This is the part that differs my design from the other fission reactions. The high kinetic energy of the Uranium ion and the neutron coupled with the high negative electric field at the target would split the atom into fine particles. As a result, Uranium atom would go through cascaded fission reactions. This would result in much more energetic neutrons to be released together with more energy release due to loss of more mass. More neutrons would either fission more Uranium atoms or they would be absorbed by Uranium to form Uranium 239 which later transforms into Plutonium 239. The energy released at the target would heat it to incandescent temperatures. Tungsten would glow and emit light that can be turned into electricity by the GaAs solar panel behind the prism. The EMF generated during fusion reactions would also induce current on the induction coil which would also get harvested.
The source electrode (+130 kV) captures the massive electron storm generated during impact. An inductive choke and high-voltage, radiation-hardened capacitors decouple the DC power supply from the harvesting circuit. This allows the high-frequency AC spike of the fission pulse to pass into a transformer for conversion to usable DC. A tungsten grid biased at +120 kV is placed in front of the source. It captures secondary electron emissions that would otherwise cause a reverse-current short-circuit. This grid acts as a secondary harvesting stage for low-energy electrons. Finally, at the bottom of the tube a Peltier with heatsink would turn the heat generated at the target into electricity.
Conclusion
This system would work in pulses. The immense amount of energy released during cascaded fission reactions should be absorbed and dissipated before a new pulse. This would increase the endurance of the setup. The cascaded fission reactions would yield a lot of byproducts inside the tube. In an atmospheric environment it would need to be vacuumed, but for the space missions conducted at vacuum, the ambient vacuum would be used to clean off the fission byproducts.
This 100% solid-state design eliminates the need for turbines, pumps, or steam cycles. The vacuum of space acts as the primary insulator and waste-gas exhaust. By utilizing magnetic focusing to scan the target area, the system prevents local overheating and extends the operational life of the single-use UD₃ wire source. The integration of inductive, optical, and electronic harvesting ensures that the energy multiplier remains efficient even in the high-radiation environment of deep space.








