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LENR Products: Lattice Confinement Fusion (LCF), Fission, or Both?Lattice Confinement Fusion (LCF) or Low Energy Nuclear Reactions (LENR) generate heat from the high energy products they produce. Conventionally, d-d fusion reactions may produce either 2.45 MeV neutrons, 3 MeV protons, or high energy gammas. Generally, fission will give 5-10x the excess energy of fusion. However, aneutronic “cold fusion” would provide 24 MeV/reaction, D(d,γ)4He, where the gamma is suppressed. In a series of pressurized gas cycling experiments with a palladium silver (75 wt.% Pd and 25 wt.% Ag or Pd25Ag) alloy [1], samples cycled with deuterium showed excess heat via unexplained temperature rises. Post-test analysis of the Pd25Ag samples using a Scanning Electron Microscope (SEM/EDX) showed several molten features containing anomalous elements other than Pd and Ag. Researchers such as Liu et al [2] have also observed transmutations under similar conditions. These molten areas and anomalous elements suggest Pd fission. This nuclear process has been referred to as nuclear disintegration. Either nuclear fission or disintegration may result in neutron rich fragments. The fragments would rapidly beta decay to shorter lived daughters until they reach stability.
We’ve observed evidence of both fusion and fission products [3]. Figure 1 shows neutron spectroscopy showing fusion and boosted neutron energies in bremsstrahlung-initiated fusion of TiD2. Figure 2 shows possible fission products from D2 gas cycled Pd25Ag alloy.
Alternatively, Oppenheimer-Phillips stripping reactions, enhanced by electron screening [4] may also occur. In this case, the 8.6 MeV binding energy per Pd or Ag minus the 2.2 MeV deuteron binding energy leaves 6.4 MeV distributed between the reaction products. The energy is shared inversely proportional to the masses of the stripped off nucleon, p or n, and the new target nucleus.
Document ID
20230012003
Acquisition Source
Glenn Research Center
Document Type
Presentation
Authors
Theresa L. Benyo
(Glenn Research Center Cleveland, Ohio, United States)
Pamela Mosier-Boss
(Global Energy Corporation Annandale, Virginia, United States)
Lawrence Forsley ORCID
(Global Energy Corporation Annandale, Virginia, United States)
Wayne Jennings
(HX5 (United States) Fort Walton Beach, Florida, United States)
Bruce Steinetz
(Glenn Research Center Cleveland, Ohio, United States)
Gus Fralick
(Glenn Research Center Cleveland, Ohio, United States)
Robert Hendricks ORCID
(Glenn Research Center Cleveland, Ohio, United States)
Date Acquired
August 11, 2023
Subject Category
Nuclear Physics
Meeting Information
Meeting: 25th International Conference on Condensed Matter Nuclear Science (ICCF-25)
Location: Szczecin
Country: PL
Start Date: August 27, 2023
End Date: August 31, 2023
Sponsors: University of Szczecin, Maritime University of Szczecin
Funding Number(s)
WBS: 847801.04.04.01.06
Distribution Limits
Public
Copyright
Public Use Permitted.
Technical Review
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