Method for sintering high density yttria-gadolinia ceramic scintillators Export

@misc{citeulike:1514445, abstract = {A method for preparing high density yttria-gadolinia ceramic scintillators includes cold-pressing a multicomponent powder to form powder compacts and then sintering the compacts to form transparent-to-translucent ceramic scintillator bodies. The powder compacts are formed by either die pressing or die pressing followed by isostatic pressing to further increase green density. The powder compacts are sintered in vacuum or a reducing atmosphere at a temperature of between 1800.degree. C. and 2100.degree. C. The preferred heating sequence includes a holding period at a temperature lower than the final sintering temperature. The finished scintillator includes Y.sub.2 O.sub.3, Gd.sub.2 O.sub.3, and one or more of Eu.sub.2 O.sub.3, Nd.sub.2 O.sub.3, Yb.sub.2 O.sub.3, Pr.sub.2 O.sub.3, Dy.sub.2 O.sub.3, and Tb.sub.2 O.sub.3 rare earth activator oxides. The finished scintillator may also include at least one of SrO and CaO as afterglow reducers.}, author = {Cusano, D. A. and Greskovich, C. D. and Dibianca, F. A.}, citeulike-article-id = {1514445}, citeulike-linkout-0 = {http://www.google.com/patents?id=TCoyAAAAEBAJ&dq=389812}, citeulike-linkout-1 = {http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN%2F4473513}, day = {25}, journal = {United States Patent}, keywords = {dy, gadolinia, nb, oxalate, patent, pr, scintillator, tb, transparent\_ceramic, wet, yb, yttria}, month = {September}, posted-at = {2007-07-30 17:05:41}, priority = {2}, title = {Method for sintering high density yttria-gadolinia ceramic scintillators}, url = {http://www.google.com/patents?id=TCoyAAAAEBAJ&dq=389812}, volume = {4473513}, year = {1984} }

TY - GEN ID - citeulike:1514445 L3 - citeulike-article-id:1514445 N2 - A method for preparing high density yttria-gadolinia ceramic scintillators includes cold-pressing a multicomponent powder to form powder compacts and then sintering the compacts to form transparent-to-translucent ceramic scintillator bodies. The powder compacts are formed by either die pressing or die pressing followed by isostatic pressing to further increase green density. The powder compacts are sintered in vacuum or a reducing atmosphere at a temperature of between 1800.degree. C. and 2100.degree. C. The preferred heating sequence includes a holding period at a temperature lower than the final sintering temperature. The finished scintillator includes Y.sub.2 O.sub.3, Gd.sub.2 O.sub.3, and one or more of Eu.sub.2 O.sub.3, Nd.sub.2 O.sub.3, Yb.sub.2 O.sub.3, Pr.sub.2 O.sub.3, Dy.sub.2 O.sub.3, and Tb.sub.2 O.sub.3 rare earth activator oxides. The finished scintillator may also include at least one of SrO and CaO as afterglow reducers. JF - United States Patent TI - Method for sintering high density yttria-gadolinia ceramic scintillators VL - 4473513 KW - dy KW - gadolinia KW - nb KW - oxalate KW - patent KW - pr KW - scintillator KW - tb KW - transparent_ceramic KW - wet KW - yb KW - yttria AU - Cusano, DA AU - Greskovich, CD AU - Dibianca, FA PY - 1984/09/25/ UR - http://www.google.com/patents?id=TCoyAAAAEBAJ&dq=389812 ER -