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Making GRETA: How Engineering is helping bring the world’s most sensitive gamma-ray spectrometer to life

Caption: GRETA assembled for final testing at Berkeley Lab. Credit: Marilyn Sargent, Berkeley Lab

Remembering Mary K. Gaillard

Mary K Gaillard teaching at UC Berkeley in the early 1980s. Courtesy of Emilio Segre archives, LBNL.

LZ's record-setting limits on dark matter interaction published in Physical Review Letters

Looking up into the LZ Outer Detector, used to veto external radioactivity that can mimic a dark matter signal. Credit: Matthew Kapust, Sanford Underground Research Facility

The Accelerator Behind the Scenes of Essential Tech

A cyclotron operator controls the beam for experiments from the 88-Inch Cyclotron control room. Credit: Marilyn Sargent/Berkeley Lab Alt text: A person adjusts a setting at a console with multiple panels of knobs, switches, and screens.

Celebrating Ross Schlueter’s Retirement: Over Three Decades of Innovation at Berkeley Lab Engineering

Ross Schlueter – Photo by Marilyn Sargent

2025 Physical Sciences Area Strategic Plan

2025 Strategic Plan cover image close-up

Tapering In Gas Jets Increases The Efficiency Of 10-GeV Class Laser Plasma Accelerators

(a) Gas jet density measurement setup. The phase offset of the probe beam (∼3 cm diameter) after it passes through the gas plume was measured using a wavefront sensor. (b) Example microscope image of gas jet throat used for width measurements. (c) Raw phase data measured from a representative shot. A 3D model of a small section of the 30 cm elliptical gas jet is shown in (d). Image courtesy of the ATAP Division

The Technologies Fueling the Future of Fusion

Alt text: Two researchers examine a cylindrical component mounted in a testing rig on a workbench in a lab filled with equipment and tools.

Expert Interview: Cameron Geddes on Fusion Energy

Modeling And Design Of Compact Beam Transport For Laser-Driven Proton Beams

Illustration of the permanent magnet dipole. The yoke is indicated in red, and the magnets are shown in green. The segmentation is for simulation purposes. Credit: Jared De Chant & Carl A. Williams, Berkeley Lab

STAR Data Reveal 'Splash' of the Quark-Gluon Plasma

An artistic representation of a liquidlike fireball of "quark-gluon plasma" (QGP) created in a collision of two gold ions at the Relativistic Heavy Ion Collider (RHIC). This collision has also produced a correlated spray of particles (a "jet") back-to-back with a photon (wavy purple line). Scientists from RHIC's STAR Collaboration showed that interactions of the jet particles cause the QGP to splash sideways, like the wake behind a power boat, enabling them to measure properties of the plasma. (Valerie A. Lentz/Brookhaven National Laboratory)

Machine Learning Helps Ease the Jitters of High-Power Lasers

(l-r) Researchers Anthony Gonsalves, Alessio Amodio, and Dan Wang at the Lawrence Berkeley National Laboratory align precision optics to prepare the Berkeley Lab Laser Accelerator (BELLA) Petawatt laser for laser-plasma accelerator (LPA) experiments. The machine learning–based control algorithm stabilizes the high-power laser’s pointing at the LPA target.(Credit: Thor Swift/Berkeley Lab).

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