| Autor: |
T. Niedermayr, J.J. Blair, D. Beckedahl, G.J. Schmid, L. Mihailescu, J.E. Kammeraad, Kai Vetter |
| Rok vydání: |
2005 |
| Předmět: |
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| Zdroj: |
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 553:501-511 |
| ISSN: |
0168-9002 |
| DOI: |
10.1016/j.nima.2005.07.017 |
| Popis: |
We report on the first experimental demonstration of Compton imaging of gamma rays with a single coaxial high-purity germanium (HPGe) detector. This imaging capability is realized by two-dimensional segmentation of the outside contact in combination with digital pulse-shape analysis, which enables to image gamma rays in 4{pi} without employing a collimator. We are able to demonstrate the ability to image the 662keV gamma ray from a {sup 137}Cs source with preliminary event selection with an angular accuracy of 5 degree with an relative efficiency of 0.2%. In addition to the 4{pi} imaging capability, such a system is characterized by its excellent energy resolution and can be implemented in any size possible for Ge detectors to achieve high efficiency. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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