Growth and X-ray characterization of GdxYb1−xTaO4 () single crystals with large lattice spacing gradient

Silva, R. Almeida; Tirao, G.; Cusatis, C.; Andreeta, José Pedro

doi:10.1016/j.jcrysgro.2005.01.046

Cited by 5 publications

References 14 publications

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Crystal Fibers and Thin Films for Imaging Applications

Pédrini

Dujardin

NATO Security Through Science Series

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Huge progress in the elaboration of crystal fibers and thin films of scintillating materials opens new opportunities for the improvement of imaging techniques and the design of new systems. It is particularly true in the case of medical imaging for which better spatial resolution and sensitivity are required for clear diagnostics in major diseases. Different techniques of elaboration of crystal fibers and thin films are presented with their advantages and drawbacks. For fibers, Laser Heated Pedestal Growth (LHPG), Micro Pulling-Down (MPD), Edge-defined Film-fed Growth (EFG) and Internal Crystallization Method (ICM) are described. Their merits are compared and some are adapted for industrial production. Their use in PET scanners and other detectors are promising to increase the spatial resolution. Two kind of scintillating thin films are of interest for imaging applications: films deposited on substrates through liquid phase and molecular beam epitaxy, sol-gel coating and pulsed laser deposition; films created by irradiation of crystals and containing color centers. Examples of applications are given concerning mainly X-ray imaging with high spatial resolution.

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