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24 September 2007 LaF3:Ce nanocomposite scintillator for gamma-ray detection
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Abstract
Nanophosphor LaF3:Ce has been synthesized and incorporated into a matrix to form a nanocomposite scintillator suitable for application to γ-ray detection. Owing to the small nanocrystallite size (sub-10 nm), optical emission from the γ / nanophosphor interaction is only weakly Rayleigh scattered (optical attenuation length exceeds 1 cm for 5-nm crystallites), thus yielding a transparent scintillator. The measured energy resolution is ca. 16% for 137Cs γ rays, which may be improved by utilizing brighter nanophosphors. Synthesis of the nanophosphor is achieved via a solution-precipitation method that is inexpensive, amenable to routine processing, and readily scalable to large volumes. These results demonstrate nanocomposite scintillator proof-of- principle and provide a framework for further research in this nascent field of scintillator research.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
E. A. McKigney, R. E. Muenchausen, D. W. Cooke, R. E. Del Sesto, R. D. Gilbertson, M. K. Bacrania, B. L. Bennett, L. G. Jacobsohn, T. M. McCleskey, K. C. Ott, S. C. Sitarz, J. F. Smith, and S. Stange "LaF3:Ce nanocomposite scintillator for gamma-ray detection", Proc. SPIE 6706, Hard X-Ray and Gamma-Ray Detector Physics IX, 67061A (24 September 2007); https://doi.org/10.1117/12.737364
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