Patricia Cho, a HEDS Fellow at LLNL, is an experimental physicist delving into the mysteries of the cosmos. Her journey began with a curiosity about iron's abundance in black hole accretion disks, a phenomenon she explored during her PhD in astronomy at the University of Texas at Austin. This led her to Sandia National Laboratories, where she conducted experiments to understand the iron content in these disks, bridging the gap between theoretical models and laboratory observations.
Now, Cho's research has evolved to focus on opacity, a fundamental concept in astrophysics. She's investigating how transparent or opaque plasmas are in various celestial contexts and how this affects radiation's interaction with matter. This inquiry is crucial for building accurate models of star and galaxy formation and evolution, ultimately shaping our understanding of the universe's age and our place within it.
One of the intriguing aspects of Cho's work is the disagreement between helioseismic measurements and stellar structure models in determining the solar convection zone's boundary. Her experiments at the National Ignition Facility (NIF) aim to reconcile these differences, providing valuable insights into the Sun's inner workings.
Additionally, Cho's curiosity led her to explore electron fast ignition (EFI), an alternative fusion energy concept. She collaborated with colleagues on an experimental campaign in Paris, contributing to the development of diagnostics like the titanium K alpha imager. Back at Livermore, she continues to refine her experimental platform using the Jupiter Laser Facility's Titan laser.
Cho's HEDS fellowship has been instrumental in her career development, allowing her to explore diverse research areas and collaborate with experts. She feels fortunate to have the freedom to pursue her interests, even in unconventional fields like EFI. Her passion for discovery and the support of her institution have fueled her success, making her a prominent figure in the field of astrophysics and fusion energy research.
