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“Neutron Shell”: a high efficiency array of neutron detectors for γ-ray spectroscopic studies with Gammasphere |
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| Authors: | D G Sarantites W Reviol C J Chiara R J Charity L G Sobotka M Devlin M Furlotti O L Pechenaya J Elson P Hausladen S Fischer D Balamuth R M Clark |
| Affiliation: | a Department of Chemistry, Washington University, 1 Brookings Dr., P.O. Box 1134, St. Louis, MO 63130, USA b Department of Physics, Washington University, 1 Brookings Dr., P.O. Box 1134, St. Louis, MO 63130, USA c Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA d Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA |
| Abstract: | A shell of neutron detectors was designed, constructed, and employed in γ-ray spectroscopy with Gammasphere. It consists of up to 35 tapered regular hexagons that replace the same number of forward Ge-detector modules in Gammasphere. The shell was designed for high detection efficiency and very good neutron–γ discrimination. The simultaneous use of time-of-flight, and two methods of pulse shape discrimination between neutrons and γ rays is described. Techniques for spectroscopy with efficient detection of two neutrons are discussed. |
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