---
title: "Breakthrough in Nuclear Physics: Next-Generation GRETA Detector Successfully Tested in the US"
description: "The first tests of the next-generation GRETA detector have been successfully completed in the US. The installation is capable of tracking the path of gamma-ray photons in 3D, which will be a breakthrough for nuclear physics and medicine. 🚀🔬"
date: 2026-08-02T15:58:59.000Z
lang: en
url: https://xab.info/en/posts/breakthrough-in-nuclear-physics-next-generation-greta-detector-successfully-tested-in-the-us
tags: [frib, greta, nuclear-physics, michigan-state-university]
publisher: "XAB.info"
---

# Breakthrough in Nuclear Physics: Next-Generation GRETA Detector Successfully Tested in the US

![Next-generation GRETA gamma-ray detector in a nuclear physics laboratory in the USA](https://xab.info/media/2026/08/02/uspehnye-ispytaniya-detektora-greta-v-ssha/uspehnye-ispytaniya-detektora-greta-v-ssha-1.webp)

A significant milestone in experimental physics has been reached at the Facility for Rare Isotope Beams (FRIB) at Michigan State University. Scientists have successfully conducted the first tests of the next-generation gamma-ray detector — GRETA (Gamma-Ray Energy Tracking Array). The tests confirmed that the facility fully meets its specified performance characteristics and is ready for full-scale scientific operation.

### Revolution in Gamma-Ray Measurement

The key difference between the GRETA system and traditional gamma spectrometers lies in its operating principle. While classical detectors can only measure the energy of gamma radiation, the new installation allows for the determination of the precise three-dimensional position of each gamma-ray interaction within the detector. This capability enables researchers to literally trace the path of a particle, drastically improving measurement accuracy.

The system is based on high-purity germanium crystals with segmented electrical contacts. When a gamma-ray photon enters the detector, the electronics record the resulting signals and calculate the interaction point with high precision. This allows researchers to much more effectively separate useful data from background noise.

### Complex Engineering and International Collaboration

The creation of GRETA was the result of large-scale collaboration among several US national laboratories. The main detector modules were developed by specialists at Lawrence Berkeley National Laboratory. Engineers from Argonne and Oak Ridge National Laboratories were responsible for auxiliary systems and the software for signal processing.

During the initial tests, scientists directed a beam of light atomic nuclei at a stationary target. The collisions produced excited nuclei that emitted gamma-ray photons. This process allowed for the verification of synchronization accuracy and the operation of all key systems. The obtained results fully matched the calculations.

### From Fundamental Science to Medicine

Researchers expect that GRETA will help better understand the limits of atomic nucleus existence, the processes of heavy chemical element formation during supernova explosions and neutron star mergers, as well as test a number of fundamental physical theories. The system will allow for the study of extremely rare and short-lived atomic nuclei that were previously difficult to investigate.

In the future, the results obtained with the help of the new complex may prove useful not only for fundamental science. Developers believe that the technologies underlying GRETA could find application in:

- Nuclear energy;

- Medical diagnostics and therapy;

- Radiation monitoring systems;

- National security assurance.