BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
X-WR-CALNAME:ECE Colloquium: Maria Gatu Johnson (MIT)
X-WR-TIMEZONE:Eastern Time (US & Canada)
BEGIN:VEVENT
DTSTAMP:20260815T125137Z
UID:tag:localist.com\,2008:EventInstance_52621859241814
DTSTART:20260427T200000Z
DTEND:20260427T210000Z
DESCRIPTION:Inertial Confinement Fusion: Ignition and Nuclear Astrophysics\
 n\nFusion ignition in the laboratory was recently achieved for the first t
 ime in inertial confinement fusion (ICF) using the high-energy-density (HE
 D) laser platform at the National Ignition Facility (NIF). This talk will 
 summarize these results as well as discuss the use of the HED platform for
  basic science experiments relevant to nuclear astrophysics. Thermonuclear
  reaction rates and nuclear processes have traditionally been explored by 
 means of accelerator experiments\, which are difficult to execute at condi
 tions relevant to stellar or big bang nucleosynthesis. HED plasmas generat
 ed using lasers\, e.g.\, at the NIF and OMEGA laser facilites\, more close
 ly mimic astrophysical environments in several ways\, including with therm
 al distributions of reacting ions as opposed to mono-energetic ions imping
 ing on a cold target\; stellar-relevant plasma temperatures and densities\
 ; and\, with the recent demonstration of ignition\, neutron flux densities
  not found anywhere else on earth. This talk will present some initial nuc
 lear astrophysics-relevant results for the T+T and solar 3He+3He reactions
  using this platform to illustrate the possibilities. Future directions\, 
 including platform developments to study CNO-cycle-relevant reactions incl
 uding higher Z ions\, neutron capture on nuclei in excited states and elec
 tron screening will also be discussed. The work was supported in part by N
 SF\, the US DOE\, LLE\, and LLNL.\n \n\nBio: Maria Gatu Johnson is a princ
 ipal research scientist and assistant director for career development and 
 community building at the MIT Plasma Science and Fusion Center\, where she
  develops and uses nuclear diagnostics to diagnose inertial confinement fu
 sion (ICF) experiments. In particular\, she has focused her efforts on wor
 king to understand stagnation physics in ICF implosions\, helping guide th
 e ICF program at the National Ignition Facility (NIF) to ignition and ener
 gy gain and the program at the OMEGA laser facility to record yields. Anot
 her primary focus of her work is plasma nuclear science-relevant basic-sci
 ence experiments at OMEGA and the NIF. She also manages an accelerator lab
 oratory at MIT dedicated to diagnostic development for ICF and high energy
  density physics (HEDP) experiments. She obtained her Ph.D. from Uppsala U
 niversity\, Sweden\, in 2010\, working on neutron diagnostics for the JET 
 tokamak. She is the recipient of awards including the 2019 Katherine E Wei
 mer Award and is a Fellow of the American Physical Society. She is proud t
 o be an APS DPP Ally since 2019.
GEO:42.443451;-76.481506
LOCATION:Frank H. T. Rhodes Hall\, 310
SUMMARY:ECE Colloquium: Maria Gatu Johnson (MIT)
URL;VALUE=URI:https://events.cornell.edu/event/ece-colloquium-maria-gatu-jo
 hnson-mit
CATEGORIES:Colloquium
END:VEVENT
END:VCALENDAR