Acoustic, Electromagnetic, Neutron Emissions from Fracture by Alberto Carpinteri, Giuseppe Lacidogna, Amedeo Manuello

By Alberto Carpinteri, Giuseppe Lacidogna, Amedeo Manuello

This publication offers the suitable outcomes of lately stumbled on and interdisciplinary phenomena, caused by way of neighborhood mechanical instabilities. particularly, it appears at emissions from nano-scale mechanical instabilities comparable to fracture, turbulence, buckling and cavitation, focussing on vibrations on the TeraHertz frequency and Piezonuclear reactions. destiny functions for this paintings may possibly comprise earthquake precursors, weather switch, power construction and mobile biology.

A sequence of fracture experiments on traditional rocks demonstrates that the TeraHertz vibrations may be able to set off fission reactions on medium weight parts observed by way of neutron emissions. an analogous phenomenon seems to be to have happened in different assorted events, really within the chemical evolution of the Earth and sunlight approach, via seismicity (rocky planets) and storms (gaseous planets). because the authors discover, those phenomena may also clarify puzzles on the topic of the historical past of our planet, just like the ocean formation or the primordial carbon toxins, in addition to clinical mysteries, just like the so-called “cold nuclear fusion” or the proper radio-carbon relationship of natural fabrics, comparable to the Turin Shroud. In biology, Piezonuclear reactions may possibly clarify the mechanism that governs the so-called "sodium-potassium pump" and extra commonly, the metabolic processes.

Scientists engaged in seismology, geophysics, geochemistry, climatology, planetology, condensed topic physics and b

iology, in addition to these all for theoretical and utilized mechanics, will all take pleasure in the leading edge paintings offered right here in a holistic way.

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Extra info for Acoustic, Electromagnetic, Neutron Emissions from Fracture and Earthquakes

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6 Results from bubble thermodynamic dosimeters obtained at the end of the test considering low frequency (2 Hz) on basalt (a). Equivalent neutron dose variation during the test (b) intermediate loading frequency (200 Hz). It is interesting to note that the emission trends are conserved considering the behaviour obtained in the case of low frequency. Also in this case, in fact, the granitic specimens show a small but appreciable increase. The basalt specimens show an increase up to one order of magnitude greater than the background level, and the magnetite specimens show a neutron emission up to two orders of magnitude greater than the background level.

The remaining part of the Fe decrement seems to be almost perfectly counterbalanced by the increments in Si and O. The results coming from EDS analysis on magnetite are particularly significant, considering the theoretical explanations to these phenomena recently given by Widom et al. [23, 24], in order to explain neutron emissions as a consequence of nuclear reactions taking place in iron-rich rocks during brittle fracture. The same authors argued that neutron emissions may be related to piezoelectric effects and that the fission of iron may be a consequence of the nuclear photodisintegration [23].

During the ultrasonic test, the specimen temperature was monitored by using a multimeter/thermometer (Tektronix mod. S3910). The temperature reached 50  C after 20 min, and then increased up to a maximum level of 100  C at the end of the ultrasonic test. In Fig. 9, the neutron emissions detected are compared with the 4 Frequency-Dependent Neutron Emissions During Fatigue Tests on Iron-Rich. . 51 Fig. 9 Results from bubble thermodynamic dosimeters obtained at the end of the test considering ultrasonic frequency (20 kHz) on Luserna stone transducer power trend and with the specimen temperature.

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