Trends and patterns of scintillator nonproportionality

Abstract

Data on the photon nonproportional response of 33 inorganic scintillation materials are systemized and analyzed. The main trends of nonproportionality for different groups of inorganic scintillators, especially for oxides and halides, are highlighted. The dependence of the shape and degree of photon nonproportional response versus chemical composition, dopant type, refractive index and other fundamental properties of the materials is studied. Better proportionality appears to be correlated with higher refractive index of the compound. Another related factor is the width of the valence band in halide compounds. With larger valence band width from fluorides, to chlorides, to bromides, and to iodides, a better proportionality is observed.

13 pages, 18 figures, 2 tables. Submitted to IEEE Transactions on Nuclear Science

References in corpus (7)

• Optical and Luminescence Properties of Zinc Oxide
• Non-proportional response between 0.1-100keV energy by means of highly monochromatic synchrotron X-rays
• Comparative Study of Nonproportionality and Electronic Band Structures Features in Scintillator Materials
• Nonproportional response of LaBr3:Ce and LaCl3:Ce scintillators to synchrotron X-ray irradiation
• Non-proportional scintillation response of NaI:Tl to low energy X-ray photons and electrons
• Picosecond dynamics of hot carriers and phonons and scintillator non-proportionality
• Improved scintillation proportionality and energy resolution of LaBr3:Ce at 80K

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