Curriculum Vitae

David C. Pace Research Scientist at the DIII-D National Fusion Facility General Atomics San Diego, California, USA Education      Honors and Awards      Professional Activities      Research Experience Teaching Experience      Publications and Presentations      Co-author Publications Education University of California, Los Angeles, USA Ph.D., Experimental Plasma Physics, 2009 M.Sc., Physics 2003 Committee Co-chairs: G.J. Morales…

Physics Today October 2015 issue cover

Keeping Fusion Plasmas Hot

The following article first appeared as David C. Pace, William W. Heidbrink, and Michael A. Van Zeeland, “Keeping Fusion Plasmas Hot,” Physics Today 68, 34 (2015). In the article, we discuss interactions between high energy ions and electromagnetic waves in magnetically confined plasmas. These plasmas are produced in nuclear fusion reactors known as tokamaks. My research…

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,…

FIG. 6. Top view of the tokamak indicating the ports (A-K, there is no I-port) and the toroidal layout along the outer wall. The toroidal separation, ∆φ, between the FILD and the nearest limiter is shown.

Energetic Ion Loss Detector on the Alcator C-Mod Tokamak

This paper describes the Fast Ion Loss Detector (FILD) at the Alcator C-Mod tokamak. The FILD captures ions that are accelerated to high energies due to radio wave power injection into C-Mod. A couple of neat things about this diagnostic are that it is made of the same molybdenum material as the walls in C-Mod, and…