D-D nuclear fusion processes induced in polyethylene foams by TW Laser-generated plasma

EPJ Web of Conferences. 2015;96:01032 DOI 10.1051/epjconf/20159601032


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Journal Title: EPJ Web of Conferences

ISSN: 2100-014X (Online)

Publisher: EDP Sciences

LCC Subject Category: Science: Physics

Country of publisher: France

Language of fulltext: English

Full-text formats available: PDF



Torrisi L. (Department of Physics and Earth Science)

Cutroneo M. (Institute of Nuclear Physics, ASCR-Rez)

Cavallaro S. (Department of Physics and Earth Science)

Ullschmied J. (Institute of Plasma Physics ASCR)


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Time From Submission to Publication: 6 weeks


Abstract | Full Text

Deuterium-Deuterium fusion processes were generated by focusing the 3 TW PALS Laser on solid deuterated polyethylene targets placed in vacuum. Deuterium ion acceleration of the order of 4 MeV was obtained using laser irradiance Iλ2 ∼ 5 × 1016 W μm2/cm2 on the target. Thin and thick targets, at low and high density, were irradiated and plasma properties were monitored “on line” and “off line”. The ion emission from plasma was monitored with Thomson Parabola Spectrometer, track detectors and ion collectors. Fast semiconductor detectors based on SiC and fast plastic scintillators, both employed in time-of-flight configuration, have permitted to detect the characteristic 3.0 MeV protons and 2.45 MeV neutrons emission from the nuclear fusion reactions. From massive absorbent targets we have evaluated the neutron flux by varying from negligible values up to about 5 × 107 neutrons per laser shot in the case of foams targets, indicating a reaction rate of the order of 108 fusion events per laser shot using “advanced targets”.