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2 May 2000 New transparent polycrystalline silicate scintillators
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Proceedings Volume 3943, Sol-Gel Optics V; (2000)
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States
The sol-gel process was used in the fabrication of new polycrystalline silicate scintillators. Lutetium orthosilicate (LSO) is one of the most promising scintillators discovered in almost five decades, with a unique combination of important properties for X and (gamma) -ray spectroscopy, namely high density, fast decay, and large light yield. However, the practical utilization of LSO as a single crystal is hindered by difficulties related to high temperature crystal growth by the Czochralski method. In the new approach presented here, Ce-doped lutetium silicate crystals are grown from a gel. The processing temperatures are much lower than that of conventional processes. The polycrystalline scintillators are characterized by XRD, TEM, DTA, light decay measurement and gamma-ray spectral response.
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Eric P. Bescher, Sarah Robson, John D. Mackenzie, Bradley E. Patt, Jan S. Iwanczyk, and Edward J. Hoffman "New transparent polycrystalline silicate scintillators", Proc. SPIE 3943, Sol-Gel Optics V, (2 May 2000);

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