Transparent ceramics formed from garnet and sesquioxide crystal structures are under development for gamma spectroscopy detectors, x-ray imaging screens, solid state lighting, and laser gain media. For lens-coupled radiographic imaging, thin transparent scintillators with low optical scatter are required. For gamma spectroscopy, intra-band gap trap state distribution is critical to achieve light yield proportionality, to modify the pulse duration and afterglow. Recent advances in fabrication and implementation into systems will be described.
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