In this article I summarize the main results of a series of ultrasound applications to iron and steel bars and provide the physical thresholds required to trigger deformed space-time (DST) reactions. These ultrasonic applications determined the emission of neutron bursts, no -ray emission and the appearance of external macroscopic damages with elements foreign to the iron bars (e.g., K, Cl and Cu) which are associated with 63Cu/65Cu ratios (0.3–1.7) lower than that expected from nature (i.e., 2.2). Deformed microcavities (≤10 μm in size) partially filled with a material characterized by a sub-microscopic chaotic assemblage are found in the interior of an iron bar. It is suggested that these new type of nuclear reactions occurs when the collapse under the ultrasonic pressure waves of micron-sized discontinuities internal to the materials (micropores in the solids and bubbles in the liquids) results in an energy density to time ratio large enough to overcome the threshold predicted by the DST theory.

Journal of Advanced Physics
Vol. 5, pp. 55–62, 2016