Latest Xenon Stories

Dark Matter Detector Gets Helping Hand From Livermore Team
2012-11-16 05:58:38

April Flowers for redOrbit.com - Your Universe Online Nearly a mile underground beneath the Black Hills of South Dakota, scientists from Lawrence Livermore National Laboratory (LLNL) are using a tank to make key contributions to a physics experiment that will look for one of nature's most elusive particles, "dark matter." The Large Underground Xenon (LUX) experiment located at the Sanford Underground Research Facility in Lead, SD is the most sensitive detector of its kind to look for...

Supercharged Atoms Force Rethink On Existing Theories
2012-11-12 12:21:38

Brett Smith for redOrbit.com - Your Universe Online An international team of researchers has created ionized xenon atoms so positively charged that scientists involved in the study are now saying the existing theories need to be reexamined. Using the world´s most powerful laser, the Linac Coherent Light Source (LCLS) at the U.S. Department of Energy's (DOE) SLAC National Accelerator Laboratory at Stanford University, the physicists were able to kick out up to 36 electrons from a...

In Neutrino-less Double-beta Decay Search
2012-07-19 11:32:15

Pocar, Kumar and the team of 60 scientists using an instrument called the EXO-200 detector, succeeded in setting a new lower limit for the half-life of this ephemeral nuclear decay; though no one has yet seen it, important progress was made Physicists Andrea Pocar and Krishna Kumar of the University of Massachusetts Amherst, part of an international research team, recently reported results of an experiment conducted at the Enriched Xenon Observatory (EXO), located in a salt mine one-half...

Search For Dark Matter: XENON100 Search Sets Record Limits
2012-07-19 06:09:01

Scientists from the XENON collaboration announced a new result from their search for dark matter. The analysis of data taken with the XENON100 detector during 13 months of operation at the Gran Sasso Laboratory (Italy) provided no evidence for the existence of Weakly Interacting Massive Particles (WIMPs), the leading dark matter candidates. Two events being observed are statistically consistent with one expected event from background radiation. Compared to their previous 2011 result the...

2012-06-21 23:37:27

Key experiment in nuclear physics Stable tin, as we know it, comprises 112 nuclear particles — 50 protons and 632 neutrons. The neutrons act as a kind of buffer between the electrically repelling protons and prevent normal tin from decaying. According to the shell model of nuclear physics, 50 is a "magic number" that gives rise to special properties. Tin-100, with 50 protons and 50 neutrons, is "doubly magic," making it particularly interesting for nuclear physicists. Shooting...

World’s Most Sensitive Nanomechanical Sensor Revealed
2012-04-04 12:22:20

A team of physicists in Barcelona, Spain have for the first time fabricated and tested the world´s most sensitive Nanomechanical sensor, capable of detecting changes in mass of 1.7 yoctograms -- roughly the mass of a single proton. Team leader Professor Adrian Bachtold, of Catalan Institute of Technology´s Quantum NanoElectronics Group, and colleagues used the sensor, which is similar to a guitar string vibrating at very high frequencies (2 GHz), to compare the resonating...

2011-09-12 11:26:57

The amount of radiation released during the Fukushima nuclear disaster was so great that the level of atmospheric radioactive aerosols in Washington state was 10,000 to 100,000 times greater than normal levels in the week following the March 11 earthquake and tsunami that triggered the disaster. Despite the increase, the levels were still well below the amount considered harmful to humans and they posed no health risks to residents at the time, according to researchers at The University of...

2011-08-25 08:49:19

  Sometimes all it takes is fresh air to get a new lease of life. ESA´s Proba-2 microsatellite is a good example: an influx of nitrogen has replenished its fuel tank, in the process demonstrating a whole new space technology. On 16 August a telecommand was sent from ESA´s Redu ground station in Belgium to boost the gases in Proba-2´s unusual ℠resistojet´ engine. Used to maintain the microsatellite´s orbit at 600 km altitude, this experimental...

Word of the Day
  • A landsman who is making his first voyage at sea; a novice who enters naval service from rural life.
According to the OED, a grass-comber is also 'a sailor's term for one who has been a farm-labourer.'