Transparent ceramic scintillators for gamma spectroscopy and radiography

N. J. Cherepy; J. D. Kuntz; Z. M. Seeley; S. E. Fisher; O. B. Drury; B. W Sturm; T. A. Hurst; R. D. Sanner; J. J. Roberts; S. A. Payne

doi:10.1117/12.862503

20 September 2010 Transparent ceramic scintillators for gamma spectroscopy and radiography

N. J. Cherepy, J. D. Kuntz, Z. M. Seeley, S. E. Fisher, O. B. Drury, B. W Sturm, T. A. Hurst, R. D. Sanner, J. J. Roberts, S. A. Payne

Author Affiliations +

Proceedings Volume 7805, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII; 78050I (2010) https://doi.org/10.1117/12.862503
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

Abstract

Transparent ceramics combine the scintillation performance of single crystals with the ruggedness and processability of glass. We have developed a versatile, scaleable fabrication method, wherein nanoparticle feedstock is consolidated at temperatures well below melting to form inch-scale phase-pure transparent ceramics with optical scatter of α <0.1 cm^-1. We have fabricated Cerium-doped Gadolinium Garnets with light yields of ~50,000 Ph/MeV and energy resolution of <5% at 662 keV. We have also developed methods to form sheets of the high-Z ceramic scintillator, Europium-doped Lutetium Oxide Bixbyite, producing ~75,000 Ph/MeV for radiographic imaging applications.

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N. J. Cherepy, J. D. Kuntz, Z. M. Seeley, S. E. Fisher, O. B. Drury, B. W Sturm, T. A. Hurst, R. D. Sanner, J. J. Roberts, and S. A. Payne "Transparent ceramic scintillators for gamma spectroscopy and radiography", Proc. SPIE 7805, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XII, 78050I (20 September 2010); https://doi.org/10.1117/12.862503

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