6LiF:ZnS(Ag) Mixture Optimization for a Highly Efficient Ultrathin Cold Neutron Detector
| Autor: | Y. Yehuda-Zada, C. Hurlbut, N.C. Maliszewskyj, Catherine C. Cooksey, Alan K. Thompson, G.M. Baltic, K. Pritchard, Charles F. Majkrzak, P. Tsai, Kerry Siebein, E. Binkley, A. Osovizky, N. Hadad, J. Ziegler, R. M. Ibberson, M. Jackson |
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| Rok vydání: | 2018 |
| Předmět: |
Nuclear and High Energy Physics
Materials science 010308 nuclear & particles physics Astrophysics::High Energy Astrophysical Phenomena Nuclear Theory Analytical chemistry Phosphor Scintillator 01 natural sciences Electronic mail Neutron temperature Neutron capture Nuclear Energy and Engineering 0103 physical sciences Neutron detection Neutron Electrical and Electronic Engineering Nuclear Experiment 010306 general physics Absorption (electromagnetic radiation) |
| Zdroj: | IEEE Transactions on Nuclear Science. 65:1025-1032 |
| ISSN: | 1558-1578 0018-9499 |
| DOI: | 10.1109/tns.2018.2809567 |
| Popis: | We report the optimization of 6LiF:ZnS(Ag) scintillator mixtures for an ultrathin ( $\approx 30$ %). Our optimization took the form of exploring the weight ratios of neutron converter, phosphor, and binder to promote high neutron capture probability and light transport within the medium. We characterized a series of 6LiF:ZnS(Ag):binder mixtures for neutron absorption, light yield, and light transmission properties. In the process, we determined the optimal configuration for our requirements of millimeter thickness and cold neutron energy. Optimized prototypes exhibit excellent absorption and demonstrate neutron sensitivities of above 85% for 3.27-meV neutrons and gamma ray rejection ratios approaching 10−7. |
| Databáze: | OpenAIRE |
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