Evidence of nuclear fusion neutrons in an extremely small plasma focus device operating at 0.1 Joules

Leopoldo Soto, Cristián Pavéz, José Moreno, Luis Altamirano, Luis Huerta, Mario Barbaglia, Alejandro Clausse, Roberto E. Mayer

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

14 Citas (Scopus)

Resumen

We report on D-D fusion neutron emission in a plasma device with an energy input of only 0.1 J, within a range where fusion events have been considered very improbable. The results presented here are the consequence of scaling rules we have derived, thus being the key point to assure the same energy density plasma in smaller devices than in large machines. The Nanofocus (NF) - our device - was designed and constructed at the P4 Lab of the Chilean Nuclear Energy Commission. Two sets of independent measurements, with different instrumentation, were made at two laboratories, in Chile and Argentina. The neutron events observed are 20σ greater than the background. The NF plasma is produced from a pulsed electrical discharge using a submillimetric anode, in a deuterium atmosphere, showing empirically that it is, in fact, possible to heat and compress the plasma. The strong evidence presented here stretches the limits beyond what was expected. A thorough understanding of this could possibly tell us where the theoretical limits actually lie, beyond conjectures. Notwithstanding, a window is thus open for low cost endeavours for basic fusion research. In addition, the development of small, portable, safe nonradioactive neutron sources becomes a feasible issue.

Idioma originalInglés
Número de artículo082703
PublicaciónPhysics of Plasmas
Volumen24
N.º8
DOI
EstadoPublicada - 1 ago 2017
Publicado de forma externa

Áreas temáticas de ASJC Scopus

  • Física de la materia condensada

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