Transparent ceramic scintillators for gamma spectroscopy and radiography
Transparent ceramic scintillators for gamma spectroscopy and radiography
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DOI：
10.1117/12.862503
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发表时间：
2010-08
期刊：
影响因子：
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通讯作者：
N. Cherepy;J. Kuntz;Z. Seeley;S. Fisher;Owen B. Drury;B. Sturm;T. A. Hurst;R. Sanner;Jeffery J. Roberts;S. Payne
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文献类型：
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作者：
N. Cherepy;J. Kuntz;Z. Seeley;S. Fisher;Owen B. Drury;B. Sturm;T. A. Hurst;R. Sanner;Jeffery J. Roberts;S. Payne
透明陶瓷联合收割机将单晶的闪烁性能与玻璃的坚固性和可加工性结合在一起。我们已经开发出一种通用的、可扩展的制造方法，其中纳米颗粒原料在远低于熔化的温度下固结，以形成具有α <0.1 cm-1的光学散射的英寸级纯相透明陶瓷。我们已经制备了光产额约为50，000 Ph/MeV的铈掺杂钆石榴石，在662 keV下的能量分辨率<5%。我们还开发了形成高Z陶瓷闪烁体片的方法，掺铕氧化镥方铁锰矿，产生约75，000 Ph/MeV用于射线照相成像应用。
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.