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Filling in the Nuclear Data Gaps

Photo - Lee Bernstein, who leads the Nuclear Data Group in Berkeley Lab’s Nuclear Science Division, at the beam line in Cave 0 of the Lab’s 88-Inch Cyclotron. (Credit: Marilyn Chung/Berkeley Lab)

Berkeley Lab’s Nuclear Data Group is conducting new experiments to address common data needs in nuclear medicine, nuclear energy and fusion R&D, security, and counterproliferation work.

7 Imaging Tools Pushing Science Forward


Berkeley Lab scientists are developing new ways to see the unseen. Here are seven imaging advances (recently reported in our News Center) that are helping to push science forward, from developing better batteries to peering inside cells to exploring the nature of the universe.   1. Seeing DNA nanostructures in 3-D DNA segments can serve as a

We Gather Here Today to Join Lasers and Anti-Lasers

Schematic shows anti-lasing mode of a device created by Berkeley Lab scientists. (Credit: Zi Jing Wong/UC Berkeley)

Berkeley Lab scientists have, for the first time, achieved both lasing and anti-lasing in a single device. Their findings lay the groundwork for developing a new type of integrated device with the flexibility to operate as a laser, an amplifier, a modulator, and a detector.

Planetarium Show Brings ‘Phantom’ Matter to Life

Image - A pioneering dark matter discovery by astronomer Vera Rubin, who is shown in this rendering peering through a telescope, is described in a new planetarium show. (Credit: "Phantom of the Universe")

A new planetarium show, produced in part by Berkeley Lab’s Michael Barnett, is designed to immerse audiences in the search for dark matter, which we have so far detected only through its gravitational effects.

World’s Most Sensitive Dark Matter Detector Completes Search

The LZ water shield, currently housing the LUX experiment.

The Large Underground Xenon (LUX) dark matter experiment, which, with the help of Berkeley Lab researchers, operates beneath a mile of rock at the Sanford Underground Research Facility in the Black Hills of South Dakota, has completed its search for the missing matter of the universe. At a meeting in the UK, LUX scientific collaborators presented the results from the detector’s final 20-month run.

Dark Energy Measured with Record-Breaking Map of 1.2 Million Galaxies

This is one slice through the map of the large-scale structure of the Universe from the Sloan Digital Sky Survey and its Baryon Oscillation Spectroscopic Survey. Each dot in this picture indi-cates the position of a galaxy 6 billion years into the past. The image covers about 1/20th of the sky, a slice of the Universe 6 billion light-years wide, 4.5 billion light-years high, and 500 million light-years thick. Color indicates distance from Earth, ranging from yellow on the near side of the slice to purple on the far side. Galaxies are highly clustered, revealing superclusters and voids whose presence is seeded in the first fraction of a second after the Big Bang. This image contains 48,741 galaxies, about 3% of the full survey dataset. Grey patches are small regions without survey data. Credit: Daniel Eisenstein and SDSS-III

A team of hundreds of physicists and astronomers, including those from Berkeley Lab, have announced results from the largest-ever, three-dimensional map of distant galaxies. The team constructed this map to make one of the most precise measurements yet of the dark energy currently driving the accelerated expansion of the Universe.

$40M to Establish New Observatory Probing Early Universe

Photo - The Simons Array will be located in Chile's High Atacama Desert, at an elevation of about 17,000 feet. The site currently hosts the Atacama Cosmology Telescope (bowl-shaped structure at upper right) and the Simons Array (the three telescopes at the bottom left, middle and right). The Simons Observatory will incorporate several new telescopes and set the stage for a next-generation experiment. (University of Pennsylvania)

A new astronomy facility, the Simons Observatory, is planned in Chile’s Atacama Desert to boost ongoing studies of the evolution of the universe, from its earliest moments to today. The observatory will probe the subtle properties of the universe’s first light, known as cosmic microwave background radiation.

Scientists Take a Major Leap Toward a ‘Perfect’ Quantum Metamaterial

Illustration - The wavelike pattern at the top shows the accordion-like structure of a proposed quantum material—an artificial crystal made of light—that can trap atoms in regularly spaced nanoscale pockets. These pockets can be made to hold a large collection of ultracold “host” atoms (green), slowed to a standstill by laser light, and individually planted “probe” atoms (red) that can be made to transmit quantum information in the form of a photon (particle of light). The lower panel shows how the artificial crystal can be reconfigured with light from an open (hyperbolic) geometry to a closed (elliptical) geometry, which greatly affects the speed at which the probe atom can release a photon. (Credit: Pankaj K. Jha/UC Berkeley)

Scientists have devised a way to build a “quantum metamaterial”—an engineered material with exotic properties not found in nature—using ultracold atoms trapped in an artificial crystal composed of light.

Most Precise Measurement of Energy Range for Particles Produced by Nuclear Reactors Reveals Surprises

A view inside the particle detectors at Daya Bay, where photomultiplier tubes measure signals from antineutrinos. (Photo credit: Roy Kaltschmidt)

An international team that includes researchers from Berkeley Lab has captured the most precise—and puzzling—energy measurements yet of ghostly particles called reactor antineutrinos produced at a nuclear power complex in China.

New Results from World’s Most Sensitive Dark Matter Detector

A view inside the LUX detector. (Photo by Matthew Kapust/Sanford Underground Research Facility)

A new set of calibration techniques employed by LUX scientists has again dramatically improved the detector’s sensitivity.