Abstract: Neutron bundles are formed as a result of interactions between polarized atomic core neutrons and anti-polar neutrons injected into atomic cores. Neutron bundles are groups of neutrons that can be produced and used in a process for making elements and isotopes, and also used in a process for the production of nuclear binding energy as the ultimate clean fuel for energy with an unlimited supply. Elements and isotopes are formed upon the introduction of protons onto neutron bundles. Nuclear fusion energy is produced when neutron bundles are made to react with each other in equipment designed for this purpose that includes a neutron bundle nuclear chain reactor.