Title :
High-efficiency scintillation detector for thermal and high-energy neutrons and gamma radiation
Author :
Chiles, M.M. ; Mihalczo, J.T. ; Blakeman, E.D.
Author_Institution :
Oak Ridge Nat. Lab., TN, USA
Abstract :
Subcriticality experiments require high-efficiency radiation detectors that are sensitive to neutrons (thermal and fast) over a wide energy range and to gamma radiation. A scintillation detector design that meets these criteria is described. It consists of two scintillators assembled on a single photomultiplier tube. One scintillator is a glass, loaded with lithium enriched in /sup 6/Li, and has high efficiency for low-energy neutrons. The second scintillator is a plastic having very good efficiency for higher-energy neutrons. Efficiency values are reported for various neutron energy ranges and for gamma radiation.<>
Keywords :
gamma-ray detection and measurement; neutron detection and measurement; scintillation counters; /sup 6/Li; gamma radiation; high-efficiency radiation detectors; high-energy neutrons; plastic; scintillation detector; thermal; Assembly; Gamma rays; Glass; Lithium; Neutrons; Photomultipliers; Plastics; Radiation detectors; Scintillation counters;
Journal_Title :
Nuclear Science, IEEE Transactions on
