GRETA (Gamma-Ray Energy Tracking Array), the 4π γ-ray tracking array, will be a powerful instrument needed to accomplish a broad range of experiments that will play an essential role in addressing the intellectual challenges of low-energy nuclear science. GRETA marks a major advance in the development of γ-ray detector systems and can provide order-of-magnitude gains in sensitivity compared to existing arrays. It uses highly-segmented hyper-pure germanium crystals together with advanced signal processing techniques to determine the location and energy of individual γ-ray interactions, which are then combined to reconstruct the incident γ-ray in a process called tracking.
LBNL has a leading role in the development of the silicon vertex tracker (SVT) detector, the central piece of the ePIC detector at the Electron Ion Collider, currently under construction at Brookhaven National Laboratory. We are leveraging our expertise with Monolithic Active Pixel Sensors (MAPS) from previous projects, such as the sPHENIX MAPS-based Vertex Detector (MVTX) and the ALICE-USA part of the ITS2 upgrade.
NSD scientists are searching for an SM-forbidden decay called neutrinoless double-beta decay in several isotopes, including 76Ge in the just-completed Majorana Demonstrator and the future LEGEND experiments, 130Te in the operating CUORE and SNO+ experiments, and 100Mo in the planned CUPID experiment. These experiments, which are in direct alignment with the recommendations of the NSAC Long Range Plan for a multi-isotope neutrinoless double-beta decay campaign, feature the lowest radioactivity background in any laboratory measurements.
Eos is a 3.5-meter tall, 3-meter wide cylinder, ultimately to be filled with water and an organic scintillator surrounded by highly sensitive Photomultiplier Tubes (PMTs). By combining Cherenkov and scintillation emission the detector has the potential to provide greater sensitivity and resolution than conventional detectors. These improvements could be a game-changer for future neutrino physics experiments while also providing new capabilities for nuclear non-proliferation.
