ELECTRONIC BAND STRUCTURE AND SPECTROSCOPY OF PbWO4
نویسندگان
چکیده
Lead tungstate (PbWO4) crystallizes in the scheelite (CaWO4) structure, is transparent (Eg ≈ 4.2 eV), and has a broad intrinsic luminescence band at 420 nm. The high atomic numbers, high density, short electron and γ-ray stopping range, radiation hardness, and short lifetime of its intrinsic luminescence at room temperature (~10ns), have resulted in the selection of PbWO4 as the scintillator for an electromagnetic calorimeter under construction at the Large Hadron Collider. Intensive research and crystal growth development have occurred in the last few years.
منابع مشابه
Electronic structure of pure and defective PbWO4, CaWO4, and CdWO4
Lead tungstate (PbWO4) and cadmium tungstate (CdWO4) are dense, fast scintillator crystals which have achieved technological importance for high energy radiation detectors and medical imaging, respectively. Calcium tungstate (CaWO4, the mineral scheelite) is an important phosphor for lighting and displays. We recently compared the electronic structures of the four scheelite-structure materials ...
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