I would like to propose the development of a large-scale transmutation reactor with femto-H2. Femto-D2 transmute element was probed by experiment, and Cold Fusion can be caused by femto-D2 because femto-D2 has the covalent electrons which orbit is in deep electron orbit deeper than n=1 at a few femto- meters from the nucleus. Because femto-D2 has so dense electron between d-d, the density of electron between d-d that it can shield the coulomb repulsive force between to cause Cold Fusion. Brown gas generator is also the transmutation reactor which transmute proton in H2O to helium-3, thus brown gas a mixed gas of hydrogen, oxygen, helium-3. Mr. Ohmasa developed Ohmasa gas generator, improved brown gas generator with vertical vibration of the lateral metal plate to generate brown gas, which he named OHMASA gas. Ohmasa gas has higher concentration of helium-3 than conventional brown gas by the vibration. He also experimentally proved that brown gas generator can transmute tritium and other radioactive element to saver element, and we should note that he produced Ag, Pt, Au from Cu, Cs, Mg, which is a modern alchemy experimentally. I discovered the rout between such elements by transmutation route analysis based on my femto-H2 transmutation mechanism. Femto-H2 add two protons to the isotope which mass number and atomic increases by 2. In case that that isotope is unstable, it decays to the previous element by electron capture, and in case that that isotope is unstable it decays to the original element with mass increase by 2. If these steps are repeated, the transmutation route is on the isotopes on smaller mass number side. Therefore, the number of routes is limited. Based on the transmutation route analysis, I would like to propose the conceptualized transmutation reactor to mass-produce precious elements. Transmutation reactor needs to have the mechanism to improve the element collection to improved transmutation rate. The Conceptualized Transmutation Reactor have the H2O vibration laterally to the lateral metal plate by ultrasonic transducers, and it has a rapid circulation from transmutation chamber to metal collection chamber, which has the metal plate which voltages are applied negative and ground for the metal precipitates on the negative metal plates. This metal plates collect all of the precious metals. Conceptualized transmutation Reactor has the mechanism to collect Cd and Hg gas in the separate chamber to collect Ag and Au which are the decay product of Cd and Hg respectively.

Keywords : Brown’s Gas, HHO, Transmutation, Cold Fusion, Femto-H2, Femto-D2, Alchemy