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What is GRETINA ? GRETINA is a new type of gamma-ray detector to study the structure and properties of atomic nuclei. It is built from large crystals of hyper-pure germanium and will be the first detector to use the recently developed concept of gamma-ray energy tracking. GRETINA consists of 30 highly segmented coaxial germanium crystals. Each crystal is segmented into 36 electrically isolated elements and three crystals are combined in a single cryostat to form a triple-crystal module. There will be 10 modules in total. The modules are designed to fit a close-packed spherical geometry that will cover one quarter of a sphere. GRETINA is the first stage of the full Gamma-Ray Energy Tracking Array (GRETA).
The Development and Current Status of the Project To find out more about the recent history of the project and its current status you are invited to browse through our Newsletters. They contain a great deal of information about recent progress of the project with many hyperlinks to associated meetings, and other events of interest.
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