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David Pace, Ph.D.

mostly fusion

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Research

Consideration of neutral beam prompt loss in the design of a tokamak helicon antenna

August 18, 2016 1 Comment

This is an engineering paper concerning the design of an antenna that was installed in the DIII-D tokamak. There are particle beams on DIII-D that provide up to 20 MW of heating power for the plasma. In this paper, we simulated a few scenarios in which an appreciable fraction of this beam power hits the […]

Filed Under: Research

Curriculum Vitae

August 16, 2016 Leave a Comment

David C. PaceProgram Manager Electromagnetic Systems (EMS)  General AtomicsSan Diego, California, USA Education      Honors and Awards      Professional Activities      Research ExperienceTeaching Experience      Publications and Presentations      Co-author Publications Education University of California, Los Angeles, USAPh.D., Physics, 2009M.Sc., Physics 2003Committee Co-chairs: G.J. Morales and T.A. Carter University of the Pacific, Stockton, California, USAB.S., magna […]

Filed Under: Research

Mapping and Uncertainty Analysis of Energy and Pitch Angle Phase Space in the DIII-D Fast Ion Loss Detector

August 6, 2016 1 Comment

The following work is a technical diagnostic paper concerning a method for calculating the uncertainty in a probe that measures energetic ion losses in the DIII-D tokamak. The fast ion loss detector (FILD) measures the pitch angle and the energy of these ions that hit it at the outer wall. That measurement is incredibly valuable […]

Filed Under: Research

Gamma Ray Imager on the DIII-D Tokamak

April 17, 2016 1 Comment

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 […]

Filed Under: Research

Exponential Frequency Spectrum and Lorentzian Pulses in Magnetized Plasmas

November 21, 2015 1 Comment

example exponential spectrum

Sections Details and Download Previous Work Modeling Lorentzian Pulses What is the Relevance? This is a review of a paper recently published by my group. Here, the paper is paraphrased to reach a wider audience. The plasma physics community can read the original publication, so my goal is to provide an example of current plasma […]

Filed Under: Research

Keeping Fusion Plasmas Hot

November 15, 2015 2 Comments

Physics Today October 2015 issue cover

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 […]

Filed Under: Research

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