SULI Student Highlighted by DOE

I serve as a mentor in the undergraduate research program at DIII-D and one of my students from 2015 was shown as a highlight by the Department of Energy (DOE)! The highlight is from a DOE presentation dated February 19, 2016, but I only recently found it. The presentation is an overview of the multiple…

Ion Cyclotron Emission in the Presence of Beam Ion Losses

I recently participated in the European Physical Society’s 43rd Conference on Plasma Physics where I gave an oral presentation concerning ion cyclotron emission in tokamaks. Besides having the cool abbreviation of ICE, ion cyclotron emission is interesting because it might be something that can be measured in ITER to provide an indication of the confinement of energetic ions.…

Curriculum Vitae

David C. Pace Diagnostic Systems Coordinator 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., Physics, 2009 M.Sc., Physics 2003 Committee Co-chairs: G.J. Morales…

Gamma Ray Imager on the DIII-D Tokamak

This is a technical paper concerning the design and commissioning of a gamma ray camera on the DIII-D tokamak. The diagnostic, the Gamma Ray Imager (GRI), is a pinhole camera constructed of lead. This diagnostic is being used to study the behavior of relativistic electron beams in magnetically confined fusion plasmas. Gamma rays can be…

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…

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…