Gamma-Ray Energy Tracking Array

A rendering of GRETA, the Gamma-Ray Energy Tracking Array. (Credit: Berkeley Lab)

GRETA is a new high-resolution gamma-ray detector system that will be used to study nuclear reactions in real-time and in unprecedented detail. 

The GRETA detector array is designed to surround samples, forming a spherical shell to more completely and precisely measure the energy and 3D position of gamma rays propagating in the detectors. The array's 120 germanium crystals will be able to capture up to 50,000 signals per second in each generating so much data that the instrument will require a petabyte of storage just to capture the rapid-fire data.

ESnet is contributing to the project in several important ways. ESnet is the primary architect and developer for two high-performance computing components of the system (the Forward Buffer and the Global Event Builder). Also, ESnet staff are serving as networking consultants for the internal networking of the detector and its data acquisition systems. 

»Visit the GRETA website to learn more.