Summary of Research
Isaac is interested in how atoms and electromagnetic radiation interact within plasmas. Specifically, his experimental work focuses on photoionized plasma--plasma driven by a strong X-ray source. This work is conducted on the Z machine at Sandia National Labs. Z is the most powerful pulsed-power facility in the world; it sends several million amps of current through many thin wires, generating a bright X-ray source. Isaac's platform utilizes the copious X-rays generated during a shot on Z to irradiate a thin foil sample and produce a photoionized plasma. The physical processes and conditions present in the experiment are relevant across a range of systems--from black hole accretion disks to laboratory ignition experiments. Through robust data analysis and comprehensive simulations, he is working on producing benchmark data that can be used to validate astrophysical and laboratory spectral synthesis codes and radiation hydrodynamics codes.
Publications
Talks
“Using laboratory time-resolved emission spectra to benchmark models for accretion powered
objects”
• November 2025: APS DPP, Long Beach, CA
“Benchmark time-resolved emission spectra for accretion-powered objects”
• August 2025: Z Fundamental Science Workshop, Albuquerque, NM
“Photoionized plasma experiment on the Z machine relevant to black hole accretion disks”
• November 2022: UT Austin Astronomy Students Association Meeting, Austin,
TX
“Characterizing charge state distributions in Si and Fe photoionized plasma”
• October 2022: APS DPP, Spokane, WA
Posters
“Radiation hydrodynamics simulations of the accretion-powered objects photoionized
plasmas experiment on Z”
• February 2025: NIF/JLF User Group Meeting, Livermore, CA
• October 2024: APS Division of Plasma Physics, Atlanta, GA
• August 2024: Z Fundamental Science Workshop, Albuquerque, NM
• May 2024: High Energy Denisty Laboratory Astrophysics Conference, Tallahassee, FL
Awards
DOE NNSA Laboratory Residency Graduate Fellowship Fellow 2025-Present
UT CNS Undergraduate Research Forum Award: Physics, Math, and Astronomy 2023
UT Physics Presidential Scholarship 2020-2023
UT Mechanical Engineering Presidential Scholarship 2020-2023
Hispanic Scholarship Fund Scholar 2019-2022
Nuclear Regulatory Commission Scholar 2021