Research Interests

• Laboratory Astrophysics
• High resolution spectroscopy for benchmarking atomic spectral models
• Laboratory simulation of plasmas found in celestial sources
• Development and calibration of spectrometers for space flight and for diagnosing high energy density plasmas

Personal Background

Greg Brown is the group leader of the Astrophysics and Advanced Diagnostics Group. He began his work at LLNL in 1993 as a graduate student in the spectroscopy group at the Electron Beam Ion Trap facility where he studied X-ray emission from Fe L-shell ions. After being awarded his Ph.D. from Auburn University in 2000, Greg worked as a postdoc in the microcalorimeter group at the NASA Goddard Space Flight Center. While at Goddard, Greg became the co-lead scientist for calibration of the X-ray microcalorimeter launched on the Suzaku X-ray Observatory. In the fall of 2004, Greg returned to LLNL as part of the Radiative Properties group, where his research was centered on experiments using LLNL's Electron Beam Ion Trap. In 2015, Greg became group leader of the Astrophysics and Advanced Diagnostics Group. Greg is a member of the science working group for the XRISM X-ray Satellite and conducts experiments at 3rd and 4th generation advanced light sources and at AWE's Orion laser facility. He is also the PI of several NASA grants to conduct laboratory astrophysics experiments using LLNL's EBIT. In addition to X-ray spectroscopy, Greg enjoys swimming and surfing.