Thesis – Table of Contents Exponential Frequency Spectrum and Lorentzian Pulses During the early evolution of the temperature filament a pressure gradient forms in response to input heating from an electron beam. At these early times, the transport of thermal energy is observed to be in agreement with classical theory. This Chapter is concerned with […]
Thesis – Chapter 3: Identification of a Spontaneous Thermal Wave
Thesis – Table of Contents Identification of a Spontaneous Thermal Wave In recent years the venerable topic of thermal (diffusion) waves [Ångström, 1862] has received increased attention [Mandelis, 2000], primarily in the context of modern methodologies for diagnosing the properties of condensed and gaseous matter. Advances in experimental techniques and in the understanding of the […]
Thesis – Chapter 2: Experimental Setup and Overview of the Temperature Filament
Thesis – Table of Contents Experimental Setup and Overview of the Temperature Filament Large Plasma Device The Large Plasma Device (LAPD-U), part of the Basic Plasma Science Facility (BaPSF) at UCLA, provides an ideal parameter regime in which to perform this experimental investigation. The present device, as shown in Fig. 2.1, is a larger version […]
Thesis – Bibliography
Table of Contents Bibliography W. Horton. Drift waves and transport. Rev. Mod. Phys., 71(3):735-778, Apr 1999. doi: 10.1103/RevModPhys.71.735 Committee on Solar and Space Physics, Plasma Physics of the Local Cosmos. National Research Council, 2004. T.E. Evans, M.E. Fenstermacher, R.A. Moyer, T.H. Osborne, J.G. Watkins, P. Gohil, I. Joseph, M.J. Schaffer, L.R. Baylor, M. Bécoulet, J.A. […]
Exponential Frequency Spectrum in Magnetized Plasmas
This paper represents the main result from my Ph.D. Thesis: power spectra with exponential dependencies in frequency (semilog format) can be caused by Lorentzian shaped pulses in the time series of the measured fluctuating quantity. Knowing this can provide a big step in the understanding of how transport processes evolve in a plasma, for example, […]
Spontaneous Thermal Waves in a Magnetized Plasma
This paper holds a special place in my heart as my very first primary-author paper. It was also very fun to write because the observation (discovery!) was not an intended goal of my Ph.D. thesis project. My thesis was about wave fluctuations in a tiny plasma filament. Along the way, however, I found that there […]