Evan M. Davis

Graduate Student

858-455-3537

13-509, General Atomics, San Diego, CA

Biography

Education

B.S. Physics and B.S. Applied Mathematics, University of California at Riverside (2010)

Expertise

Optics; interferometry; phase contrast imaging; signal processing; Python; high performance computing.

Research

Anomalous turbulent transport is believed to limit the energy confinement in most fusion devices, setting the scale for ITER and next-generation reactors. As such, a first-principles understanding of these turbulent processes is highly desired, and experimental validation of any candidate model is absolutely essential. To simultaneously measure ion- and electron-scale instabilities, I am implementing a combined phase contrast imaging (PCI) and heterodyne interferometer system on the DIII-D tokamak. The combined system uses a single 10.6 micron laser beam, two interference schemes, and two detectors. Further, time-correlating our interferometer’s measurements with those of DIII-D’s pre-existing, toroidally separated interferometer will allow novel studies of low-n Alfven eigenmodes. Such measurements will provide crucial data for validation of codes used to predict confinement in contemporary and future fusion reactors.

Talks & Media

Discussing past modeling efforts to simulate the EDA H-mode regime on Alcator C-Mod (2014)