Renderings of GRETA Full Detector Array (IMAGE) DOE/Lawrence Berkeley National Laboratory Caption This set of renderings shows the completed GRETA array (top and bottom left) and half of the completed array (right). The detector is designed to open up, with each half sliding on tracks. Samples can be placed at the center of the spherical array. The completed array will contain 120 high-purity germanium crystals. Credit GRETA collaboration Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.