Quantum and plasma screening effects on the Wannier threshold law for the double-electron escape in strongly coupled semiclassical plasmas

The quantum and plasma screening effects on the Wannier threshold law for the double-electron escape are investigated in strongly coupled semiclassical plasmas. The renormalized electron charge and Wannier exponent are obtained by considering the equation of motion in the Wannier configuration with the screened pseudopotential model as functions of the de Broglie wavelength, Debye length, and charge of the residual ion. It is shown that the renormalized electron charge significantly increases with an increase in the de Broglie wavelength, especially for small radial distances. It is also shown that the quantum effects enhance the Wannier exponent for the double-electron escape. In addition, the quantum effect on the Wannier threshold law is found to be more important than the plasma screening effect in strongly coupled semiclassical plasmas

Quantum Effects on the Formation of Negative Hydrogen Ion by Polarization Electron Capture in Partially Ionized Dense Hydrogen Plasmas

The quantum effects on the formation of the negative hydrogen ion (H-) by the polarization electron capture process are investigated in partially ionized dense hydrogen plasmas. It is shown that the quantum effect strongly suppresses the electron capture radius as well as the cross section for the formation of the negative hydrogen ion. In addition, it has been found that the electron capture position is receded from the center of the projectile with decreasing the quantum effect of the plasma

Quantum effects on the formation of negative hydrogen ion by polarization electron capture in partially ionized dense hydrogen plasmas

The quantum effects on the formation of the negative hydrogen ion (H?) by the polarization electron capture process are investigated in partially ionized dense hydrogen plasmas. It is shown that the quantum effect strongly suppresses the electron capture radius as well as the cross section for the formation of the negative hydrogen ion. In addition, it has been found that the electron capture position is receded from the center of the projectile in decreasing the quantum effect of the plasma

Quantum effects on the entanglement fidelity in elastic scatterings in strongly coupled semiclassical plasmas

The quantum effects on the entanglement fidelity in elastic electron-ion scatterings are investigated in strongly coupled semiclassical plasmas. The screened pseudopotential model and partial wave analysis are employed to obtain the entanglement fidelity in strongly coupled semiclassical plasmas as a function of the thermal de Broglie wavelength, Debye length, and projectile energy. It is shown that the quantum effect significantly enhances the entanglement fidelity in strongly coupled semiclassical plasmas. It is also found that the entanglement fidelity increases with increasing the projectile energy. In addition, it is shown that the plasma screening effect increases the entanglement fidelity slightly

Effects of electron temperature and density on ion-dust bremsstrahlung spectrum in dusty plasmas

The effects of electron temperature and density on the ion-dust grain bremsstrahlung process in dusty plasmas are studied. The ion-dust remsstrahlung radiation cross section is obtained as a function of the dust charge, dust radius, Debye length, collision energy, radiation energy, electrondensity, and electron temperature by using the Born approximation. It is shown that the ion-dust bremsstrahlung radiation cross section decreases with an increase in the electron density in dusty plasmas. It is also shown that the electron temperature suppresses the bremsstrahlung radiation crosssection. In addition, the effect of electron temperature on the ion-dust bremsstrahlung process is found to be more significant than the effect of electron density in dusty plasmas

Screening Effects on Nonrelativistic Bremsstrahlung in the Scattering of Electrons by Neutral Atoms

Atomic screening effects on nonrelativistic electron-atom bremsstrahlung radiation are investigated using a simple analytic solution of the Thomas-Fermi model for many-electron atoms. The Born approximation is assumed for the initial and final states of the projectile electron. The results show that the screening effect is important in the soft radiation region and is decreasing with increasing radiation. These results help provide correct information about the behavior of bound electrons in the target atom in bremsstrahlung processes

Development and Pilot Manufacture of Pseudo-Electric Double Layer Capacitors

Binghamton University carried out basic studies on thermal characteristics of the current ELDC design and characterization of current active and conductive carbon materials used to fabricate ELDC and p-ELDC. Multi physics approach was take for thermal modeling to understand the temperature distribution of an individual cell as well as multi-cell systems, which is an important factor to the reliability of ELDC?s and p-ELDC?s. Structure and properties were characterized for various raw active carbon materials which can be used as electrode to look into potential cost reduction opportunity without degrading the performance. BU team also performed experiments for compositional optimization studies for active carbon, conductive carbon, and binder formulation. A few laboratory instruments were installed for this project at BU. These instruments will continued to be used to carry out further research and development tasks relevant to ELDC and p-ELDC. Project subawardee, Ioxus, Inc., successfully created, enhanced, and then generated a product line of hybrid capacitors which now range in size from 220 Farads (F) to 1000F. These products have been proven to work as the primary energy storage method for LED lighting applications, and two significant commercial applications are evaluating these devices for use. Both of these applications will be used in LED lighting, which replaces traditional batteries and allows for a very fast charge and a high cycle life, over a wide temperature range. This will lead to a significant reduction of waste that ends up in landfills. These products are 70% recyclable, with a 10 year life. In one both applications, it is expected that the hybrid capacitor will power the LED lights for the life of the product, which would have required at least 10 battery changes