Yttrium aluminum doping cerium is a fast, mechanically strong and chemically resistant scintillation material. Mechanical properties enable precise machining and entrance windows can be made with a very thin aluminum layer deposited directly on the entrance surface of the crystal. YAP:Ce scintillators have very low energy secondary X-ray emissions which makes them desirable for imagining applications. YAP:Ce detectors are used for gamma and X-ray counting, electron microscopy, electron and X-ray imaging screens, and tomography systems.
Properties:
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Afterglow (% @6msec)
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<0.005
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Cleavage Planes
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NIL
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Decay Constant (ns)
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25
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Density (g.cm-3)
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5.4
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Emission Spectral Range (nm)
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325 to 425
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Melting Point
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1875
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Peak Scintillation Wavelength (nm)
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350
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Photons/MeV
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10000
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Radiation Length (cm)
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2.7
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Refractive Index at peak emission
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1.95
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Stability
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Good
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Structure
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Rhombic
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Temperature Coefficient of Light Output
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-0.1
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Water Solubility (g/100g H2O)
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NIL
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