The Continuous Electron Beam Accelerator Facility at Jefferson Lab. (Source: Jefferson Lab)
Research with the Department of Energy’s Thomas Jefferson National Accelerator Facility (Jefferson Lab) has revealed new insights into short-range correlations—the brief pairings of nucleons (protons with neutrons, protons with protons, or neutrons with neutrons) in the nuclei of atoms. The study, published in Nature, used precision measurements to determine that short-range correlations differ depending on the density of the nucleus, that is, how many nucleons it contains.
Instrumentation at Oak Ridge National Laboratory’s Spallation Neutron Source, an accelerator-based facility that provides the most intense pulsed neutron beams in the world for scientific research and industrial development. (Photo: ORNL)
Researchers advancing particle accelerator technology for medical, security, energy, and industrial applications have a new funding opportunity announced on February 16 by the Department of Energy’s Office of Science (DOE-SC). The funding will support research to advance particle accelerator technology for medical, security, energy, and industrial applications. Grants will be awarded for work focused on innovation, technology transfer, and supply chain resiliency that falls under one of two DOE-SC programs: the Accelerator Stewardship program, which supports cross-disciplinary teams to solve high-impact problems, and the Accelerator Development program, which is aimed at strengthening domestic suppliers of accelerator technology.
The Relativistic Heavy Ion Collider at Brookhaven National Laboratory. (Photo: DOE)
The Department of Energy has announced an $18 million funding opportunity for research and development in particle accelerator science and technology for nuclear physics research. Provided through the DOE’s Office of Science, the funding is intended to support “efforts essential to developing world-leading core competencies and transformative technologies that significantly advance the state-of-the-art accelerator capabilities.”
Lise Meitner and Otto Hahn in their lab in Germany in 1913.
Comparing matter to a “lush tapestry, woven from a complex assortment of threads,” physics writer Emily Conover traces the evolution of our understanding of the atom over the past century in the recent Science News article, “How matter’s hidden complexity unleashed the power of nuclear physics.” Conover uncovers how our vision of matter changed from that of a “no-nonsense plaid” to one of an “ornate brocade,” ultimately transforming nuclear physics from an arcane academic pursuit to something that forever changed the world.