Latest Z machine Stories

Z machine
2014-09-24 03:00:01

Neal Singer, DOE/Sandia National Laboratories Researchers at Sandia National Laboratories’ Z machine have produced a significant output of fusion neutrons, using a method fully functioning for only little more than a year. The experimental work is described in a paper to be published in the Sept. 24 Physical Review Letters online. A theoretical PRL paper to be published on the same date helps explain why the experimental method worked. The combined work demonstrates the viability of...

Control Of Widely Recognized Distortion May Allow Greater Output At Sandia's Z Machine
2014-01-10 09:33:28

DOE/Sandia National Laboratories A surprising effect created by a 19th century device called a Helmholz coil offers clues about how to achieve controlled nuclear fusion at Sandia National Laboratories' powerful Z machine. A Helmholz coil produces a magnetic field when electrified. In recent experiments, two Helmholz coils, installed to provide a secondary magnetic field to Z's huge one, unexpectedly altered and slowed the growth of the magneto-Rayleigh-Taylor instabilities, an...

Sandia Nuclear Fusion Concept Undergoes Dry-Run Testing
2012-09-18 10:11:04

April Flowers for redOrbit.com - Your Universe Online Researchers at the Sandia National Laboratories have completed successful preliminary tests on magnetically imploded tubes called liners, which are intended to help produce controlled nuclear fusion at scientific "break-even" energies or better within the next few years. The results of this research will be published in Physical Review Letters (PRL). Scientific break-even is one of the major performance measurements in fusion energy...

Ice Giants Found To Have More Water Volume
2012-03-20 03:06:13

The idea of compressing water is foreign to our daily experience. Nevertheless, an accurate estimate of water´s shrinking volume under the huge gravitational pressures of large planets is essential to astrophysicists trying to model the evolution of the universe. They need to assume how much space is taken up by water trapped under high density and pressure, deep inside a planet, to calculate how much is needed of other elements to flesh out the planet´s astronomical image. In...

2011-09-09 11:43:02

Two remarkable pulsed-power machines used to test the nation's defenses against atomic weapons have surpassed milestones at Sandia National Laboratories: 4,000 firings, called 'shots,' on the Saturn accelerator and 9,000 shots on the HERMES III accelerator. Saturn – originally projected to last 5 to 10 years – began operating in 1987. Its major function has been to produce X-rays to test the effectiveness of countermeasures used to protect electronics and other materials...

2010-11-12 12:40:28

More accurate simulations could lead to 'break-even' fusion in foreseeable future A new X-ray imaging capability has taken pictures of a critical instability at the heart of Sandia's huge Z accelerator. The effort may help remove a major impediment in the worldwide, multidecade, multibillion dollar effort to harness nuclear fusion to generate electrical power from sea water. "These are the first controlled measurements of the growth of magneto-Rayleigh-Taylor [MRT] instabilities" in fast...

2009-09-08 09:12:40

A University of Nevada-Reno scientist has received a U.S. Department of Energy grant to study high-energy plasma's role in astrophysics and other fields. Professor Roberto Mancini, chairman of the school's physics department, said the $690,000 grant will further his studies into ultra-high temperature and non-equilibrium plasmas, researching what happens to matter around black holes. Mancini will conduct some of his experiments with the pulsed-power machine at the Sandia National Laboratories...

2009-02-18 09:57:22

Technique may provide data for NIF nuclear fusion effort The enormous pressures needed to melt diamond to slush and then to a completely liquid state have been determined ten times more accurately by Sandia National Laboratories researchers than ever before. As a bonus to science, researchers Marcus Knudson, Mike Desjarlais, and Daniel Dolan discovered a triple point at which solid diamond, liquid carbon, and a long-theorized but never-before-confirmed state of solid carbon called bc8 were...

2006-03-08 00:45:00

ALBUQUERQUE, N.M. -- A particle accelerator at Sandia National Laboratories has heated a swarm of charged particles to a record 2 billion degrees Kelvin, a temperature beyond that of a star's interior. Scientists working with Sandia's Z machine said the feat also revealed a new phenomenon that could eventually make future nuclear fusion power plants smaller and cheaper to operate than if the plants relied on previously known physics. "At first, we were disbelieving," said Chris Deeney, head...

2005-06-07 18:05:13

Technique helps compute Jupiter/Saturn mass, improve peacetime fusion capsule design, stabilize stockpile ALBUQUERQUE, N.M. -- Sandia National Labs has accelerated a small plate from zero to 76,000 mph in less than a second. The speed of the thrust was a new record for Sandia's Z Machine - sometimes referred to as the fastest gun in the West. Actually the fastest in the world, it is now able to propel small plates at 34 kilometers a second, faster than the 30 km/sec that Earth travels...

Word of the Day
  • Boughs or branches.
  • Warbling of birds in trees.