Neutron Emission from Fracture of Piezoelectric Materials in Deuterium Atmosphere

Fujii, Masatoshi; Nakahara, Hiromichi; Sueki, Keisuke; Shirakawa, Toshiaki; Chiba, M.; Fujimoto, Yasushi; Hayami, Y.; Hirose, T.; Utsumi, M.; Yokoyama, Takaharu; Yonekura, Satoru

doi:10.1143/jjap.41.2115

Cited by 19 publications

(9 citation statements)

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“…However, our experiments (Carpinteri et al 2009a, b;Cardone et al 2009) follow a different path with respect to the other research teams, where only fissionable or light elements (deuterium) were used, in pressurized gaseous media (Arata et al 1995(Arata et al , 2002, in liquids with ultrasounds and cavitation (Taleyarkhan 2002), as well as in solids with shock waves and fracture (Diebner 1962;Kaliski 1976Kaliski , 1978Winterberg 1984;Derjaguin et al 1989;Fujii et al 2002). We are treating with inert, stable and non-radioactive elements at the beginning of the experiments (iron) (Carpinteri et al 2009a, b;Cardone et al 2009), as well as after the experiments (aluminum).…”

Section: Introductionmentioning

confidence: 97%

Electromagnetic and neutron emissions from brittle rocks failure: Experimental evidence and geological implications

Carpinteri

Lacidogna

Borla

et al. 2012

Sadhana

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It has been observed energy emission in the form of electromagnetic radiation, clearly indicating charge redistribution, and neutron bursts, necessarily involving nuclear reactions, during the failure process of quasi-brittle materials such as rocks, when subjected to compression tests. The material used is Luserna stone, which presents a very brittle behaviour during compression failure. The observed phenomenon of high-energy particle emission, i.e., electrons and neutrons, can be explained in the framework of the superradiance applied to the solid state, where individual atoms lose their identity and become part of different plasmas, electronic and nuclear. Since the analysed material contains iron, it can be conjectured that piezonuclear reactions involving fission of iron into aluminum, or into magnesium and silicon, should have occurred during compression damage and failure. These complex phenomenologies are confirmed by Energy Dispersive X-ray Spectroscopy (EDS) tests conducted on Luserna stone specimens, and found additional evidences at the Earth's Crust scale, where electromagnetic and neutron emissions are observed just in correspondence with major earthquakes. In this context, the effects of piezonuclear reactions can be also considered from a geophysical and geological point of view.

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Section: Introductionmentioning

confidence: 97%

Electromagnetic and neutron emissions from brittle rocks failure: Experimental evidence and geological implications

Carpinteri

Lacidogna

Borla

et al. 2012

Sadhana

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“…There has been considerable evidence of high energy particle production during the fracture of certain kinds of crystals [1][2][3][4][5][6]. In particular, fracture induced nuclear transmutations and the production of neutrons have been clearly observed [7][8][9][10][11][12][13][14]. The production of neutrons appears greatly enhanced if the solids being fractured are piezoelectric [15] materials.…”

Section: Introductionmentioning

confidence: 99%

“…The width of the micro-crack is 2a and the length (into the paper) of the crack is L ≫ a. The half width a is the critical length size for forming the micro-crack as in Eq (14)…”

mentioning

confidence: 99%

Neutron production from the fracture of piezoelectric rocks

Widom

Swain

Srivastava

2012

J. Phys. G: Nucl. Part. Phys.

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A theoretical explanation is provided for the experimental evidence that fracturing piezoelectric rocks produces neutrons. The elastic energy micro-crack production ultimately yields the macroscopic fracture. The mechanical energy is converted by the piezoelectric effect into electric field energy. The electric field energy decays via radio frequency (microwave) electric field oscillations. The radio frequency electric fields accelerate the condensed matter electrons which then collide with protons producing neutrons and neutrinos.

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“…Our experiment follows a different path with respect to those of other research teams, where only fissionable or light elements (deuterium) were used, in pressurized gaseous media [2,3], in fluids with ultrasounds and cavitation [4], as well as in solids with shock waves and fracture [5][6][7][8][9][10][11]. We are treating with inert, stable and non-radioactive elements at the beginning of the experiments (iron) [12,13], as well as after the experiments (aluminum).…”

mentioning

confidence: 99%