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<p>From left to right: LZ Chief Engineer Jeff Cherwinka, UC Santa Barbara postdoctoral researcher Sally Shaw, and UC Santa Barbara engineer Suzanne Kyre in teh Sanford Underground Research Facility&#8217;s Davis Laboratory on Oct. 11. Behind them is a support frame, custom cart, and steel tank mockup that was tested for the delivery of acrylic tanks. (Credit: Constance Walter/Sanford Underground Research Facility)</p>

Acrylic Tanks Provide Clear Window Into Dark Matter Detection

Scientists have a new window into the search for dark matter – an acrylic vessel that features a grouping of 12-foot-tall transparent tanks with 1-inch-thick walls. The tanks, which will surround a central detector for a nearly mile-deep experiment under construction in South Dakota called LUX-ZEPLIN (LZ), will be filled with liquid that produces tiny flashes of light in some particle interactions.

<p>Bhavna Arora (right) and former intern Madison Burrus discuss the computer simulations they are creating using data about river discharge, precipitation, and snowpack collected from the East River catchment site near Crested Butte, CO. (Credit: Marilyn Chung/Berkeley Lab)</p>

How Drought and Other Extremes Impact Water Pollution

One in 10 Americans depends on the Colorado River for bathing and drinking. Last fall’s record-high temperatures reduced Colorado snowpack in winter 2018 to 66 percent of normal, sparking concern over water shortages downstream and leaving water managers fearful of a repeat. Berkeley Lab hydrological science expert Bhavna Arora explains how unseasonably warm weather and drought can affect water quality.

<p>A new FPGA control hardware module developed by Gang Huang, a research scientist in Berkeley Lab’s Accelerator Technologies and Applied Physics Division, and Larry Doolittle, a staff engineer in Berkeley Lab’s Engineering Division, for scalable control of superconducting qubits. (Credit: Peter DaSilva, Berkeley Lab)</p>

A Quantum Leap Toward Expanding the Search for Dark Matter

Through a new research program supported by the U.S. Department of Energy’s Office of High Energy Physics, a consortium of researchers from Berkeley Lab, UC Berkeley, and the University of Massachusetts Amherst will develop sensors that enlist the seemingly weird properties of quantum physics to probe for dark matter particles in new ways, with increased sensitivity, and in uncharted regions.

<p>A new FPGA (field-programmable gate array) module developed by Gang Huang, a research scientist in Berkeley Lab’s Accelerator Technologies and Applied Physics Division, and Larry Doolittle, a staff engineer in Berkeley Lab’s Engineering Division, for scalable control of superconducting qubits. (Credit: Peter DaSilva/Berkeley Lab)</p>

Berkeley Lab to Push Quantum Information Frontiers With New Programs in Computing, Physics, Materials, and Chemistry

Lawrence Berkeley National Laboratory (Berkeley Lab) this week announced support from the Department of Energy that significantly expands Berkeley Lab’s research efforts in quantum information science, an area of research that harnesses the phenomenon of quantum coherence, in which two or more particles are so tightly entangled that a change to one simultaneously affects the other. Quantum information science seeks to utilize this phenomenon to hold, transmit, and process information.

<p>A team from Berkeley Lab worked on installation of the beam window – the cylindrical, ringed object in the middle of the photo – for ProtoDUNE. A particle beam at CERN enters the cryostat wall from the left of the photo, through the middle of the beam window, and then gets injected into the detector volume shown at the right of the photo. The region shown in the photo has since been filled with liquid argon chilled to minus 301 degrees Fahrenheit. (Credit: CERN)</p>

First Particle Tracks Seen in ProtoDUNE: the Prototype for an International Neutrino Experiment

The largest liquid-argon neutrino detector in the world has just recorded its first particle tracks, signaling the start of a new chapter in the story of the international Deep Underground Neutrino Experiment (DUNE). DUNE’s scientific mission is dedicated to unlocking the mysteries of neutrinos, the most abundant (and most mysterious) matter particles in the universe.