Now showing items 467-486 of 488

    • Transport studies on CVD-grown graphene 

      Huntley, Miriam Hanna (Massachusetts Institute of Technology, 2009)
      In this thesis, we report transport studies performed on CVD-grown graphene. We perform resistivity and hall measurements on a large-area sample at 4' K. We measure the carrier mobility of the sample and find it to be on ...
    • Trapping cold rubidium in a fiber 

      Brown, David Ross, S.B. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2007)
      In this thesis, we demonstrate the novel technique of loading cold ⁸⁷Rb into a red-detuned optical dipole trap within a hollow core photonic fiber. This confines the atoms to 6 microns in two dimensions. We initially cooled ...
    • The trial of the holographic principle 

      Musiał, Wojciech, S.B. Massachusetts Institute of Technology (Massachusetts Institute of Technology, 2013)
      We present an introduction to ideas related to the holographic principle in the context of the well-established duality between classical gravity and conformal fluid dynamics. Foundations of relativistic hydrodynamics, ...
    • Tunneling density of states behavior in superconducting niobium-titanium. 

      Jackson, Shirley Ann (Massachusetts Institute of Technology, 1968)
    • Ultracold neutron storage simulation using the Kassiopeia software package 

      Bogorad, Zachary. (Massachusetts Institute of Technology, 2019)
      The Kassiopeia software package was originally developed to simulate electromagnetic fields and charged particle trajectories for neutrino mass measurement experiments. Recent additions to Kassiopeia also allow it to ...
    • Ultraviolet laser calibration of drift chambers 

      Elliott, Grant (Grant Andrew) (Massachusetts Institute of Technology, 2006)
      We demonstrate the use of a focused ultraviolet laser as a track calibration source in drift chambers, and specifically in a small time projection chamber (TPC). Drift chambers such as TPCs reconstruct the trajectories of ...
    • An upper limit on the abundance of small trans-Neptunian objects from X-ray occultations 

      Jones, Tucker Anthony (Massachusetts Institute of Technology, 2007)
      I describe the detection of 201 highly significant dips in the count rate of Sco X-1 from a search of some 500 ks of archival RXTE PCA data, which could be caused by TNO occultations. I show that most of these dips are ...
    • Use of correlation matrices in lattice QCD 

      Lepzelter, David, 1981- (Massachusetts Institute of Technology, 2004)
      This thesis explores the use of correlation matrices in analyzing Monte Carlo calculations from lattice quantum chromodynamics. Correlation matrices are a powerful tool for examining many problems in which significant ...
    • Use of dielectric material in muon accelerator RF cavities 

      French, Katheryn Decker (Massachusetts Institute of Technology, 2011)
      The building of a muon collider is motivated by the desire to collide point-like particles while reducing the limitations imposed by synchrotron radiation. The many challenges unique to muon accelerators are derived from ...
    • The use of methyl iodide as a high Z material in bubble chambers 

      Yamamoto, Richard Kumeo (Massachusetts Institute of Technology, 1957)
    • Using 2D vortex plasmons/phonon polaritons to control electronic selection rules 

      Leal Machado, Francisco (Massachusetts Institute of Technology, 2016)
      The discovery of orbital angular momentum (OAM) sustaining modes established a new degree of freedom by which to control not only the flow of light but also its interaction with matter. However, OAM sustaining modes have ...
    • Using calculus of variations to optimize paths of descent through ski race courses 

      Christopher, Jason W (Massachusetts Institute of Technology, 2005)
      The goal of ski racing is to pass through a series of gates as quickly as possible. There are many paths from gate to gate, but there is only one path that is fastest. By knowing what the fastest path is, a racer could ...
    • Using gravitational lens geometry to measure cosmological parameters 

      Dorsher, Susan E. (Susan Elaine), 1982- (Massachusetts Institute of Technology, 2004)
      We develop a technique for measuring cosmological parameters ([omega]M and w) using gravitational lens geometry, source and lens redshifts, and the velocity dispersion of the lensing galaxy. This technique makes use of the ...
    • Using the method of moments and Robin Hood method to solve electromagnetic scattering problems 

      Chester, David A., III (Massachusetts Institute of Technology, 2012)
      This thesis project was to write a program in C++ that solves electromagnetic scattering problems for arbitrarily shaped scatterers. This was implemented by using a surface integral formulation of Maxwell's equations, which ...
    • Velocity-ion temperature gradient driven modes and angular momentum transport in magnetically confined plasmas 

      Thomas, John Chandler (Massachusetts Institute of Technology, 2007)
      Plasma confinement experiments continue to uncover fascinating phenomena that motivate theoretical discussion and exploration. In this thesis, we consider the phenomenon of angular momentum transport in magnetically confined ...
    • Were ancient mesoamerican buildings oriented to magnetic north? 

      Carroll, Timothy John (Massachusetts Institute of Technology, 1979)
    • Wireless transfer of electric power 

      Moffatt, Robert Alexander (Massachusetts Institute of Technology, 2009)
      In this dissertation, I describe the design and construction of a system which can transfer electric power wirelessly. This is accomplished using inductive, near-field, non-radiative coupling between self-resonant copper ...
    • Wolter mirror microscope : novel neutron focussing and imaging optic 

      Bagdasarova, Yelena S. (Yelena Sergeyevna) (Massachusetts Institute of Technology, 2010)
      In this thesis, I investigated the effectiveness of a Wolter Type I neutron microscope as a focusing and imaging device for thermal and cold neutrons sources by simulating the performance of the optics in a standard neutron ...
    • X-ray periodicities in sources observed by the RXTE ASM 

      Shivamoggi, Vasudha B (Massachusetts Institute of Technology, 2005)
      The X-ray intensities measured from 230 X-ray sources observed by the RXTE All-Sky Monitor (ASM) were analyzed for periodic behavior. The ASM has been observing sources for nine years in the 1.5-12 keV energy range. In ...
    • X-ray power density spectra of black hole binaries : a new deadtime model for the RXTE PCA 

      Wei, Dennis (Massachusetts Institute of Technology, 2006)
      The power density spectrum is an essential tool for determining the frequency content of X-ray radiation from astronomical sources. For neutron star systems, power density spectra reveal coherent oscillations for those ...