Status of GRETA
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley CA (United States)
A gamma-ray energy tracking array (GRETA) consisting of a shell of highly segmented Ge detectors is a new concept for the detection of gamma radiation. In such an array, the individual interactions of all the gamma rays are identified by their energies and positions. Then, using tracking algorithms based on the properties of gamma ray interactions the scattering sequences are reconstructed. GRETA will give high peak efficiency, peak-to-background ratio, and position resolution. Progress has been made in four key areas of development; 1) the manufacture of segmented detectors, 2) a data processing system to digitize the signals, 3) signal processing methods for determining energy, time, and position from pulse shape, and 4) a tracking algorithm to identify interaction points belonging to a particular gamma ray. These technical advances have demonstrated that the construction of a gamma ray energy-tracking array is feasible, and a plan for constructing a US array is in place.
- OSTI ID:
- 20632636
- Journal Information:
- AIP Conference Proceedings, Vol. 680, Issue 1; Conference: 17. international conference on the application of accelerators in research and industry, Denton, TX (United States), 12-16 Nov 2002; Other Information: DOI: 10.1063/1.1619779; (c) 2003 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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