Now showing items 1-20 of 92

    • Low Temperature, High Magnetic Field Measurements of GdAISi 

      Romond, Rachel (1998-01-01)
      We investigated the behavior of a new material, GdAISi in a magnetic field. Previously, the only measurements of this material had been done in zero magnetic field. Using a 20 Tesla superconducting magnet with a liquid ...
    • Low Temperature, High Magnetic Field Measurements of GdAISi 

      Romond, Rachel (1998-01-01)
      We investigated the behavior of a new material, GdAISi in a magnetic field. Previously, the only measurements of this material had been done in zero magnetic field. Using a 20 Tesla superconducting magnet with a liquid ...
    • Data Acquisition in the Detection of Dark Matter 

      Villaume, Nathaniel (1998-01-01)
      Dark Matter constitutes up to 90% of the mass in the Universe. A promising candidate for Dark Matter is the Weakly Interacting Massive Particle (WIMP). We are building a Multi Wire Proportional Chamber to detect WIMPs. The ...
    • The Dynamic Kingdon Trap 

      Folse, Chad (1998-01-01)
      The Dynamic Kingdon Trap is an apparatus designed for the permanent storage of charged particles. To confine particles, this trap uses the ponderomotive force due to an AC electric field, and electric potential due to a ...
    • Ion Drift in Multiwire Proportional Chambers 

      Ohnuki, Tohru (1998-01-01)
      The DRIFT dark matter detector (Directional Recoil Identification From Tracks) recently proposed by Snowden-Ifft and collaborators requires the use of ion drift to provide signal directionality. Carbon disulfide, an ...
    • Magnetization Measurements to 60T of UBel3 and PRBel3 

      Detwiler, Jason (1998-01-01)
      The peculiar properties of heavy fermion compounds at low temperatures combined with the lack of a comprehensive theory to consistently describe those properties have made the heavy fermions the subject of much study over ...
    • The Irreversibility Line of LuNi2B2C 

      DeBoer, Charles (1998-01-01)
      LuNi2B2C is a type II superconductor with a critical temperature, Tc, of about 16K. The irreversibility line, Hirr, of LuNi2B2C was measured with the magnetic field both perpendicular and parallel to the c-axis of the ...
    • De Hass van Alphen Measurements of RBe13 Compounds, R = Pr, Th, La 

      Detwiler, Jason (1998-01-01)
      Since its discovery in the early 1930s, the de Haas van Alphen effect (dHvA) has become a very powerful tool in fermiology, the study of the Fermi surface of metals. dHvA is the oscillation of susceptibility with a changing ...
    • Static Properties of the Skyrmion. 

      Liang, Calvin (1999-01-01)
      In the 1960's, T.H.R Skyrme developed a mathematical model in which baryons are considered as solitons in a non-linear sigma model of pion interactions. The solitonic solutions of the non-linear Euler Lagrange equations ...
    • Analyzing Particle Transport in a Non-Neutral Plasma Trap. Scott Rees and Brenda Carrillo 

      Rees, Scott; Carrillo, Brenda (1999-01-01)
      Our research focused on particle transport, which we studied by confining non-neutral plasma in a Malmberg-Penning trap. A Malmberg-Penning trap is an apparatus that consists of an axial magnetic field and two confining ...
    • Finding an Alpha Rejection Factor in 40 torr CS2 

      Villaume, Nate (1999-01-01)
      For a variety of reasons, it is presumed that Dark Matter constitutes up to 90% of the mass in the universe. We believe that Weakly Interacting Massive Particles (WIMPs) are a promising candidate for Dark Matter. Positive ...
    • Investigating the Properties of Ag and In Through Use of Hall Effect 

      Fernandez, Margarita (1999-01-01)
      In order to carry out my physics comprehensive project, I propose to study the properties of Ag and In through the use of the Hall Effect. The main property I will investigate is charge carrier density. In order to identify ...
    • Sonoluminescence: a Star in a Jar. 

      Romond, Rachel (1999-01-01)
      Sonoluminescence is a process of turning sound into light. When a single air bubble suspended in water is driven by an appropriate acoustic signal, it emits short flashes of light.These flashes are only picoseconds long ...
    • Dynamics of Penta-Hepta Defect in a Hexagonal Pattern 

      Tam, Tammy (1999-01-01)
      The spatial and temporal dynamics of penta-hepta defects (PHD) and line defects in hexagonal patterns are studied. The hexagonal pattern is formed by a layer of soap bubbles (~1 mm in diameter) floating on a glass plate. ...
    • Monte Carlo Simulation of the Ising and Skyrme Models. Steven Bornn-Gilman & Alex Do 

      Bornn-Gilman, Steven; Do,Alex (2000-01-01)
      Statistical Mechanics provides an analytical method for evaluating expectation values for properties of fixed temperature systems. For large, or realistically sized systems, obtaining such values through a weighted average ...
    • Modelling Alpha Particles in a Negative Ion Proportional Chamber. 

      Villaume, Nate (2000-01-01)
      For a variety of reasons, it is thought that Dark Matter constitutes up to 90% of the mass in the universe. We believe that Weakly Interacting Massive Particles (WIMPs) are a promising candidate for Dark Matter. Definitive ...
    • Analyzing the Amplitude Scaling of Asymmetry-induced Transport in Pure Electron Plasmas 

      Carrillo, Brenda (2000-01-01)
      The objective of this research is to determine the scaling of the plasma's radial transport with asymmetry amplitude. The experiment was performed by applying an asymmetric potential to the various wall sectors of the ...
    • Preliminary Simulations Applied to Asymmetry Induced Transport in a Non-Neutral Plasma. 

      Liang, Calvin (2000-01-01)
      In theory, applying an electric field perpendicular and a magnetic field parallel (or anti-parallel) to a particle's trajectory should confine the particles into an E X B circular motion. However, experiments have shown ...
    • Existence and Behavior of Waves in a Low Density Non-Neutral Plasma Trap. 

      Sakota, Zeljko (2000-01-01)
      According to current theory, there should be no plasma waves in a trap that has a sufficiently low plasma density. The trap at Occidental College was constructed with the assumption that its dimensions and density would ...
    • Cantilever Magnetometry using a Single Uranium Crystal. 

      Benedict, Brandy (2000-01-01)
      We have determined the lower critical magnetic field values of a single-crystal of type II superconductor LuNi2B2C at temperatures between 3K and 11K using cantilever magnetometry. This compound is part of a class of rare ...