Los Alamos National Laboratory researchers have demonstrated an almost four-fold boost of the carrier multiplication yield with nanoengineered quantum dots. Carrier multiplication is when a single photon can excite multiple electrons. Quantum dots are novel nanostructures that can become the basis of the next generation of solar cells, capable of squeezing additional electricity out of the extra energy of blue and ultraviolet photons.
A new facility for using protons to take microscopic images has been commissioned at the ring...
A house window that doubles as a solar panel could be on the horizon, thanks to recent quantum...
Interest in oxide-based semiconductor electronics has exploded in recent years, fueled largely...
Call it “homo minutus”. A team at Los Alamos National Laboratory is developing four human organ constructs (liver, heart, lung and kidney) that will work together to serve as a drug and toxicity analysis system that can mimic the actual response of human organs. Called ATHENA, for Advanced Tissue-engineered Human Ectypal Network Analyzer, the system will fit neatly on a desk.
Scientists at Los Alamos National Laboratory are working toward even stronger and more elastic glass types which would fail in a ductile fashion instead of shattering. Researchers there are looking at the initiation of shear-banding events in order to better understand how to control the mechanical properties of these materials.
A team NIST scientists, with collaborators elsewhere, has achieved a five-fold reduction in the dominant uncertainty in an experiment that measured the mean lifetime of the free neutron, resulting in a substantial improvement of previous results. However, the accomplishment reveals a puzzling discrepancy when compared to different method, and researchers are planning to re-run the experiment in upgraded form.
A ground-penetrating bomb, minus its nuclear components, rammed through a target at the remote Coyote Canyon test range last month in Sandia National Laboratories’ first such rocket-driven impact test in seven years. Engineers said the Sandia components on the weapon performed as expected.
Solar cells made with low-cost, nontoxic quantum dots can achieve unprecedented longevity and efficiency, according to a study by Los Alamos National Laboratory and Sharp Corp. The reported solar cells are based on nontoxic quantum dots. These dots are based on copper indium selenide sulfide and are rigorously optimized to reduce charge-carrier losses from surface defects and to provide the most complete coverage of the solar spectrum.
The ChemCam laser instrument aboard NASA’s Curiosity rover fired its 100,000th shot recently, chronicling its adventures on Mars with a coffee-table-book’s worth of spectral data that might rival snapshots gathered during a long and satisfying family vacation here on Earth. ChemCam zaps rocks with a high-powered laser to determine their composition and carries a camera that can survey the Martian landscape.
Los Alamos National Laboratory scientists have advanced a magnetic resonance imaging (MRI) technology that may provide a breakthrough for screening liquids at airport security. They’ve added low-power x-ray data to the mix, and as a result have unlocked a new detection technology.
Researchers at Los Alamos National Laboratory are investigating the complex relationships between the spread of the HIV virus in a population (epidemiology) and the actual, rapid evolution of the virus (phylogenetics) within each patient’s body. The team models the uninfected population using traditional differential equations on the computer; this is done for computational speed, because an agent-based component is much more demanding.
A new collaborative science program is pioneering the development of ultra-sensitive methane-sensing technology. Methane, the principal component of natural gas, is one of many gases whose presence in the atmosphere contributes to global climate change. It is a goal of industry and scientists alike to better constrain the source flux of fugitive methane emissions from man-made activities.
Quantum dots are nano-sized semiconductor particles whose emission color can be tuned by simply changing their dimensions. New research at Los Alamos National Laboratory aims to improve quantum dot-based light-emitting diodes by using a new generation of engineered quantum dots tailored specifically to have reduced wasteful charge-carrier interactions that compete with the production of light.
Within its first three months on Mars, NASA’s Curiosity Rover saw a surprising diversity of soils and sediments along a half-kilometer route that tell a complex story about the gradual desiccation of the Red Planet. Perhaps most notable among findings from the ChemCam team is that all of the dust and fine soil contains small amounts of water.
The science and engineering capabilities that underpin the nuclear weapons stockpile stewardship and nonproliferation missions at the nation’s three national security laboratories are “healthy and vibrant,” says a new report from the National Research Council. The committee that wrote the report found no problems with the quality of science and engineering that would prevent certification of the stockpile.
Computers process information quickly, but they perform sequentially. Because clock speeds have stalled, future performance gains come almost solely from running sets of instructions concurrently. This will force fundamental changes for all computer components, making co-design (collaborative, simultaneous development of all system components) essential. Developed by a team led by Sandia National Laboratories, Mantevo Suite 1.0 is a promising approach to co-design.
The Earth’s upper atmosphere is under bombardment by cosmic radiation that produces showers of pions, which rapidly decay into a constant flux of muons (some 200 m2/sec) that shower objects on Earth. Since the muon angular trajectory changes as a function of the density and atomic weight of the material traversed, a unique “signature” for the substance can be developed. The ability to identify distinct material density enables the Multi-Mode Passive Detection System (MMPDS), developed by Decision Sciences International Corp. and Los Alamos National Laboratory, to quickly detect unshielded to heavily shielded nuclear threats, as well as gamma rays, with near-zero false alarms.
Numerous space probes have taken advantage of radioisotope thermoelectric generators (RTGs) powered by plutonium. However, the end of the Cold War has brought about a shortage of plutonium. In collaboration with NASA Glenn Research Center and National Security Technologies, Los Alamos National Laboratory has developed an alternative type of nuclear reactor, one that uses plentiful uranium as its fuel source.
X-ray scanners are, even after decades of development, bulky, heavy, expensive and not always reliable. Los Alamos National Laboratory, with the help of several industry experts in optics, has introduced an x-ray device, MiniMAX that overcomes these limitations.
During the Cold War, U.S. and international monitoring agencies could spot nuclear tests and focused on measuring their sizes. Today, they’re looking around the globe to pinpoint much smaller explosives tests. Sandia National Laboratories and Los Alamos National Laboratory have partnered to develop a 3-D model of the Earth’s mantle and crust called SALSA3D, with the purpose to assist in locating explosions.
With the launch of a new “Express Licensing” program, access to innovative technology invented at Los Alamos National Laboratory (LANL) has gotten easier. The new licensing alternative was announced by David Pesiri, Dir. of LANL’s Technology Transfer Div.
After studying data from a pair of NASA probes roaming the harsh space environment within the Van Allen radiation belts, researchers at Los Alamos National Laboratory believe they have solved a lingering mystery about how electrons within Earth’s radiation belt can suddenly become energetic enough to kill orbiting satellites.
The Powerwall Theater (PWT) at Los Alamos National Laboratory is an innovative facility that enables researchers to view the complex models and simulations they have created using some of the world’s fastest supercomputers. Recently, PWT was upgraded with 40 double-stacked Christie Mirage 3-D LED projectors that will provide seamless, integrated 3-D visualization.
Decision Sciences International Corp. and Los Alamos National Laboratory (LANL) announced they have been recognized by R&D Magazine as a 2013 R&D 100 award winner for their Multi-Mode Passive Detection System Technology.
Higher-strength, lighter-weight steels could be coming to a car near you in the near future as part of a DOE advanced manufacturing initiative. Researchers are lending their expertise to a three-year, $1.2-million project to develop a new class of advanced steels for the automotive industry, materials that will be produced using cleaner manufacturing methods.
Three National Nuclear Security Administration (NNSA) sites where The Babcock & Wilcox Co. (B&W) operates have been selected as recipients of R&D Magazine's 2013 R&D 100 Awards. Sites honored include the Y-12 National Security Complex, Lawrence Livermore National Laboratory, and Los Alamos National Laboratory.
Three technologies from the U.S. Dept. of Energy’s Los Alamos National Laboratory and its partners were honored with 2013 R&D 100 Awards. MiniMAX is a battery-powered, digital x-ray imaging system that is completely self-contained, lightweight, compact and portable. KiloPower uses a nuclear fission system as a heat source that transfers heat via a heat pipe to a small power convertor to produce electricity from uranium.
Los Alamos National Laboratory (LANL) and Tribogenics, a developer of x-ray solutions, have recently partnered to create a unique, lightweight, compact, low-cost X-ray system that uses LANL’s MiniMAX (miniature, mobile, agile, x-ray) camera to provide real-time inspection of sealed containers and facilities. The innovative technology will be featured at an upcoming International Atomic Energy Agency conference.
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