Lawrence Livermore National Laboratory
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Photons & Fusion Newsletter
Photons & Fusion is a monthly review of science and technology at the National Ignition Facility & Photon Science Directorate. For more information, submit a question.
2012
December
Workshop Explores NIF's Unique
Ability to Study Giant Planets
Topics ranging from the behavior of hydrogen and helium at extreme densities to "surprises" in planetary physics research were explored at the Laboratory during a Dec. 7 workshop on the capabilities of NIF for studying the physics and chemistry of giant planets....November
Effects of Ion Heating in Hohlraums
Reported in Physical Review Letters
A key to achieving symmetrical implosions in NIF ignition experiments is controlling the energy transfer between laser beams as they cross at the hohlraum laser entrance holes...October
Photoinjector for MEGa-ray Described
In Physical Review Special Topics
A tunable MEGA-ray source is being developed using an all X-band linac including an X-band rf (radio frequency) photoinjector...September
Moses Looks to the Future
At All-Hands Meetings
Describing Fiscal Year 2012 as a "spectacular" year for NIF and Photon Science, NIF Director Ed Moses outlined the Directorate's accomplishments, challenges, and opportunities at All-Hands meetings on Sept. 19...August
Preparing the NIF Beamlines
For Routine High-Energy Operations
Much more went into NIF's record-breaking two-megajoule, 500-terawatt-plus shot on July 5 than just turning up the energy of NIF's 192 powerful lasers...July
AM Compensation Efforts Help
Enable NIF's High-Power Shots
A key factor in NIF's recent success in reaching the 500-terawatt power milestone was the work of the NIF team to measure and find ways to compensate for amplitude modulation...June
NIF&Photon Science Researchers
Win R&D 100 Awards
Technologies developed by NIF&PS researchers John Heebner, Joe Farmer, and Sasha Rubenchik are among five LLNL technologies receiving 2012 R&D100 Awards from R&D Magazine...May
Reducing the Time to Grow
Good Cryogenic Layers
Among the techniques being employed by NIF researchers to shorten the time between experiments is the use of x-ray images called "space-time plots" to evaluate the quality of a deuterium-tritium ice layer as it grows...April
LLNL Researchers Discuss
HED Laboratory Astrophysics
Laboratory experiments at large laser facilities can achieve the conditions necessary for the formation of "collisionless" shocks and provide a unique avenue for studying the nonlinear physics of shock waves...March
Interim Report Urges the Effective
Use of NIF in IFE Planning
The National Academies Committee on Prospects for Inertial Confinement Fusion Energy Systems has called for the establishment of a scientific-community-based roadmap for the development of inertial fusion energy (IFE) sources, with NIF as a major component...February
NIF User Group Meets
To Discuss NIF Research Opportunities
About 170 scientists, students, and postdoctoral researchers attended the first NIF User Group meeting held at LLNL on February 12-15 to discuss fundamental science research opportunities at NIF...January
NIF Equation-of-State Experiments
Will Shed Light on Exoplanets
Ramp-compression equation-of-state experiments on NIF should provide insights into the structure and atmospheres of newly discovered planets outside our solar system...
