Posts tagged with "Lasers"

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Lawrence Livermore scientists move one step closer to mimicking gamma-ray bursts

May. 27, 2015 -  
Using ever more energetic lasers, Lawrence Livermore researchers have produced a record high number of electron-positron pairs, opening exciting opportunities to study extreme astrophysical processes, such as black holes and gamma-ray bursts. By performing experiments using three laser systems —...
The Optics Whisperer: Master Optician Hones His Art at LLNL

The art of hand-polishing precision optics

May. 22, 2015 -  
Growing up in a household of artists and engineers, Peter Thelin was destined for a career in which artistry mattered. Only for him, art has come in the form of manipulating the shapes, sizes and qualities of optics . And now, as one of the few remaining practitioners of hand-polishing optics,...

Climbing the mountain of fusion ignition: an interview with Omar Hurricane

May. 14, 2015 -  
LLNL Distinguished Scientist Omar Hurricane, chief scientist for the Laboratory’s Inertial Confinement Fusion (ICF) program, is at the forefront of the drive to achieve nuclear fusion with energy gain for the first time in a laboratory. In a wide-ranging interview with NIF & Photon Science News...

Congressman Swalwell visits Lab to witness experiment at National Ignition Facility

May. 5, 2015 -  
Congressman Eric Swalwell visited the Laboratory Monday to witness an experiment at the National Ignition Facility (NIF). After an initial overview by NIF Director Mark Herrmann, Swalwell was greeted by Lab Director Bill Goldstein, Livermore Field Office Manager Nicole Nelson-Jean and NIF &...

Researchers toss around rugby-shaped hohlraums for ignition experiments

May. 1, 2015 -  
For several years, the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL) has pursued an indirect drive approach to ignition, using cylindrically shaped gold cans known as hohlraums. In this configuration, all of NIF’s 192 laser beams enter the hohlraum through a pair...

Promising new X-ray microscope poses technical challenges

Apr. 30, 2015 -  
You may think the aisles in your neighborhood convenience store are crowded, but they’d look positively spacious compared to the passageways in the NIF target bay. The target bay bristles with dozens of instruments needed for NIF experiments, ranging from inserters that hold NIF targets in place to...

Unlocking the secrets of star creation

Apr. 29, 2015 -  
On April 1, 1995, the Hubble Space Telescope , now celebrating its 25th anniversary, captured the famous images of the “Pillars of Creation” in the Eagle Nebula. Twenty years later to the day, the NIF Team conducted the first experiment in a new Discovery Science campaign aimed at finding clues to...

Thinner capsules yield faster implosions

Apr. 24, 2015 -  
In National Ignition Facility (NIF) inertial confinement fusion (ICF) experiments, the fusion fuel implodes at a high speed in reaction to the rapid ablation, or blow-off, of the outer layers of the target capsule. To reach the conditions needed for ignition, the fuel must implode symmetrically at...