Posts tagged with "Lasers"


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...

30 years and counting, the X-ray laser lives on

Apr. 14, 2015 -  
More than 50 years ago, when the laser was a mere 5 years old, laser physicists dreamed of the development of an X-ray laser to expand the frontier of knowledge. The concept goes back to the mid-1960s, when scientists realized that laser beams amplified with ions would have much shorter wavelengths...

Lawrence Livermore deploys world’s highest peak-power laser diode arrays

Mar. 12, 2015 -  
Lawrence Livermore National Laboratory (LLNL) has installed and commissioned the highest peak power laser diode arrays in the world, representing total peak power of 3.2 megawatts (MW). The diode arrays are a key component of the High-Repetition-Rate Advanced Petawatt Laser System (HAPLS), which is...

'Gigashot' laser installed for European project

Mar. 9, 2015 -  
A key component of the High-Repetition-Rate Advanced Petawatt Laser System (HAPLS) under construction at LLNL has been installed and commissioned. The new Gigashot-HE diode-pumped solid-state (DPSS) laser system will be used as a pump source for one of HAPLS’ high-energy titanium-doped sapphire (Ti...

Determining structural evolution under pressure

Mar. 6, 2015 -  
The study of material properties under the conditions of extreme high pressures and strain rates is important for understanding meteor, asteroid or comet impacts, as well as in hypervelocity impact engineering, inertial confinement fusion (ICF) capsules, and basic high energy density (HED) physics...