Curriculum Vitae

David C. Pace Research Scientist at the DIII-D National Fusion Facility General Atomics San Diego, California, USA Education University of California, Los Angeles, USA Ph.D., Experimental Plasma Physics, 2009 M.Sc., Physics 2003 Committee Co-chairs: G.J. Morales and T.A. Carter University of the Pacific, Stockton, California, USA B.S., magna cum laude, Physics, 2002 Honors and Awards Energy…

circuit diagram of Langmuir probe setup

Example of Langmuir Probe Analysis

Sections Processing the Raw Data Determining Electron Temperature and Plasma Potential Calculating Electron Density An Additional Concern for Temperature Analysis Sample Data for Practice This is a simple example of Langmuir probe analysis and the issues related to it. It is intended to serve as a helpful reminder of the technical details in analyzing the…

wavelet-based spectrogram

Thesis – Chapter 1: Introduction

Thesis – Table of Contents Introduction 1.1 Motivation Anomalous transport is an area of great interest within the plasma physics research community. The field of magnetically confined thermonuclear fusion may benefit significantly from an improved understanding of this topic. It has already been shown that turbulent fluctuations increase the transport of mass and energy [Horton,…

detect positive pulse

Thesis – Appendix B: Pulse Detection Techniques

Thesis – Table of Contents Pulse Detection Techniques Overview The study of exponential spectra and accompanying Lorentzian pulses in time series data requires that the pulses be isolated for determining their characteristic widths. A variety of identification techniques have been applied to the large data set of this experiment, and notes on two of these…

wavelet power spectrum

Thesis – Appendix A: Wavelet Analysis to Calculate Power Spectra

Thesis – Table of Contents Wavelet Analysis to Calculate Power Spectra Overview Wavelet analysis techniques, while not as commonly understood as Fourier analysis, are nonetheless frequently applied to problems in which time and frequency information are desired simultaneously. Analysis suites such as IDL (popular in plasma physics circles) provide complete libraries for easily incorporating these…

Thesis – Chapter 7: Conclusions

Thesis – Table of Contents Conclusions Studies of filamentary pressure structures are an ongoing work within the LAPD-U laboratory. The work of Burke, et al. [1998, 2000a, b] (and [Burke, 1999]) established the ability of this experimental geometry to observe classical transport in magnetically confined plasmas. An increase in transport and the loss of classical…

flow contour

Thesis – Chapter 6: Plasma Flow Parallel to Background Magnetic Field

Thesis – Table of Contents Plasma Flow Parallel to Background Magnetic Field Plasma flow is studied in relation to another aspect of this thesis, namely the thermal wave. This section examines describes flows aligned with the applied background magnetic field, i.e., parallel flows. Spatiotemporal Behavior and Modeling A comparison of the time evolution of parallel…