New measurement of screening potential by 'cooperative colliding process' for the d+d reaction in metallic electron environment

This is a slide-show to accompany the oral presentation by J. Kasagi entitled: "New measurement of screening potential by 'cooperative colliding process' for the d+d reaction in metallic electron environment"

Bremsstrahlung Spectrum in alpha Decay

Using our previous approach to electromagnetic emission during tunneling, an explicit, essentially classical, formula describing the bremsstrahlung spectrum in alpha decay is derived. The role of tunneling motion in photon emission is discussed. The shape of the spectrum is a universal function of the ratio Eg/Eo , where Eg is the photon energy and Eo is a characteristic energy depending only on the nuclear charge and the energy of the alpha particle.Comment: 8 pages, 3 figure

Kasagi et al. Reply:

Bremsstrahlung in α Decay of 210Po: Do α Particles Emit Photons in Tunneling?(http://hdl.handle.net/10097/35812)(Comment

Strongly Enhanced DD Fusion Reactions at Very Low Energies in Solids(I. Nuclear Physics)

The interplay between a nucleus and its environment is known to play an important role in nuclear reactions when the incident energy has been reduced far below the Coulomb barrier, where the cross section described by the Gamow function decreases drastically due to the steep drop in the quantum mechanical penetration of the barrier. For the fusion reactions in metals, experimental techniques were developed in which target nuclei were implanted in a metal. The DD fusion reactions were studied, so far, and an enhancement in the rate of the D(d, p)T fusion reaction over the Gamow function was found for deuterons in Ti and Yb. Here we report on further measurements of the D+D reactions in other materials. Of particular interest is the fact that the reaction rate of the D+D reactions at 2.5 keV in PdO is 50 times larger than in Ti, and the deduced screening potential amounts to 600 eV. This cannot be explained by bound-electron screening which may give a potential of 20 eV at most, but suggests the existence of an additional, and important, mechanism. Perhaps there is a fluidity of deuterons in metals that also reduces the Coulomb barrier between the interacting deuteron pair. An exhaustive study of nuclear reactions in metal would be very significant ; one would then not only simulate nuclear fusion reactions in a stellar plasma where the nuclei are immersed in a sea of electrons, but also explore the limitations of nuclear fusion at room temperature

Photon radiation calorimetry for anomalous heat generation in NiCu multilayer thin film during hydrogen gas desorption

In order to investigate the anomalous heat effect (AHE) in NiCu multilayer thin film, photon radiation calorimetry has been developed. Three types of photon detectors are employed to cover a wide range of wavelengths from 0.3 nm to 5.5 um, i.e., photon energies from 0.2 to 1.8 eV. In the present work, the usefullness of the calorimetry is demonstrated for excess heat measurements with samples of Ni pure, NiCu composite layers, and Cu layer deposited on the Ni substrate. Direct comparisons of photon radiation spectra with and without H2 easily showed sample-specific differences in excess heat power. The samples of NiCu composite layer produced larger excess heat. By incorporating the measured radiant power into a heat flow model, the excess heat was deduced to be 4 - 6 W. The energy generated in 80 hours reached to 520 +/- 120 kJ: the generated energy per hydrogen was at least 460 +/- 108 keV/H atom. This is definitely not a chemical reaction, but producing energy at the level of nuclear reactions.Comment: 6 pages, 6 figure