Abstract The low temperature properties of a wide range many-fermion systems spanning metals, quantum gases and liquids to nuclear matter are well understood within the framework Landau’s theory Fermi liquids. low-energy physics these is governed by interacting fermionic quasiparticles with momenta energies near surface in momentum space. Nonequilibrium described kinetic equation for distributi...

As a result of an energetic accretion, the Earth is a volatile-poor and strongly differentiated planet. The volatile elements can be accounted for by a late veneer ( approximately 1% of total mass of the Earth). The incompatible elements are strongly concentrated into the exosphere (atmosphere, oceans, sediments, and crust) and upper mantle. Recent geochemical models invoke a large primordial u...

The level densities of 44Sc and 47Ti have been determined from measurements of particle evaporation spectra from the compound nuclear reaction 3He + 45Sc with an 11 MeV 3He beam. The level density of 44Sc has been compared to the level density obtained from an independent experimental method based on an analysis of α-γ coincidences from the transfer reaction 45Sc(3He,αγ )44Sc. The good agreemen...

Heat capacity measurements have been made down to 5 mK for 3He fluid films adsorbed in one-dimensional (1D) nanometer-scale pores, 28 A in diameter, preplated with 4He of 1.47 atomic layers. At low 3He density, the heat capacity shows a density-dependent, Schottky-like peak near 150 mK asymptoting to the value corresponding to a 2D Boltzmann gas at high temperatures. The peak behavior is attrib...

We report the growth kinetics of the 4He crystals with a small amount of 3He impurities around 0.8 K. The growth resistance was measured using the response of the charged interface with respect to an externally applied voltage. In 5ppm and lOppm 3He mixtures, it is found that ( I ) the relaxation process can be expressed as an exponential behavior, ( 2 ) the growth resistance becomes larger com...

PURPOSE To assess the usefulness of hyperpolarized helium (3He) MRI, including apparent diffusion coefficient measurements, in the detection and evaluation of radiation-induced lung injury in rats. METHODS AND MATERIALS Female Fischer-344 rats were treated to the right lung with fractionated dose of 40 Gy (5 x 8 Gy) using 4-MV photons. Conventional proton (1H) and hyperpolarized (3He) MRI wer...

We use the Green Bank Telescope to search for $^3He^+$ emission from a sample of four Galactic planetary nebulae: NGC 3242, 6543, 6826, and 7009. During era primordial nucleosynthesis light elements $^2H$, $^3He$, $^4He$, $^7Li$ were produced in significant amounts these abundances have since been modified primarily by stars. Observations H II regions located throughout Milky Way disk reveal ve...

There are several classes of homogeneous Fermi systems that are characterized by the topology of the energy spectrum of fermionic quasiparticles: (i) gapless systems with a Fermi surface, (ii) systems with a gap in their spectrum, (iii) gapless systems with topologically stable point nodes (Fermi points), and (iv) gapless systems with topologically unstable lines of nodes (Fermi lines). Superfl...

The isotopes 2H and 3He have been identified in low-energy cosmic rays during solar-quiet periods from 1973 January to 1974 October. These observations, made with the Caltech Electron/ Isotope Spectrometer on IMP-7, cover the energy intervals 5-29 MeV per nucleon for 2H and 7-50 MeV per nucleon for 3He. We find that the energy spectra oflH, 2H, and 3He all fall rapidly with decreasing energy, g...

in this article, we have calculated some thermodynamic properties for a system consisting of singy ionized 3he atoms and their corresponding removed electrons by employing the second quantization method at finite temperature. to perform the calculations, we have considered the kinetic term, and coulomb interaction between the particles in our hamiltonian. the calculated properties are free ener...