ENTRY C1762 20220805 C216C176200000001 SUBENT C1762001 20220805 C216C176200100001 BIB 8 28 C176200100002 TITLE Production of Y87 and a Sr87m generator C176200100003 AUTHOR (M.Hillman,M.W.Greene,W.N.Bishop,P.Richards) C176200100004 REFERENCE (J,ARI,17,9,1966) C176200100005 #doi:10.1016/0020-708X(66)90098-6 C176200100006 INSTITUTE (1USABNL) C176200100007 FACILITY (CYCLO,1USABNL) C176200100008 SAMPLE A thick target of RbCl with sufficient aluminum. C176200100009 METHOD (ACTIV,CHSEP) For irradiations short with respect to C176200100010 the half-lives the relative yields of radioactive C176200100011 products are inversely proportional to their C176200100012 half-lives. Thus, after a 1-hr irradiation, the ratio C176200100013 of the Y88/Y87 activities is about 0.03 of the ratio C176200100014 of the saturation activities. The Y88 activity formed C176200100015 is consequently very small and may be ignored, Y90 is C176200100016 also formed in relatively small quantities. The C176200100017 Y86/Y87 factor, however, is about 5.0, and the C176200100018 presence of Y s6 is a problem. The formation of the C176200100019 bulk of the Y86 may be eliminated by using C176200100020 alpha-particles of an initial energy of about 35 MeV. C176200100021 Degradation of the alpha-particle energy by the C176200100022 proper amount is achieved by covering the rubidium C176200100023 chloride target with sufficient aluminum. The yttrium, C176200100024 after purification, is loaded onto a Dowex-1 column C176200100025 in the carbonate form. Y85,87 decay to strontium C176200100026 isotopes. The Sr87m is milked with a citric acid C176200100027 solution(0.005% at pH 5.0). C176200100028 HISTORY (20171129C) BP C176200100029 (20220726A) OS. REACTION corrected in sub.2 C176200100030 ENDBIB 28 0 C176200100031 NOCOMMON 0 0 C176200100032 ENDSUBENT 31 0 C176200199999 SUBENT C1762002 20220805 C216C176200200001 BIB 4 6 C176200200002 REACTION (37-RB-CMP(A,X)39-Y-87-G,M+,TTY,,(PHY)) RbCl target. C176200200003 EOB activity divided by irradiated charge of 1 hr. C176200200004 DECAY-DATA (39-Y-87-G,80.HR) C176200200005 STATUS (TABLE) page 11. C176200200006 HISTORY (20220726A) Added -G to REACTION SF4, changed DATA to C176200200007 DATA-APRX C176200200008 ENDBIB 6 0 C176200200009 NOCOMMON 0 0 C176200200010 DATA 2 1 C176200200011 EN-APRX DATA-APRX C176200200012 MEV MUCI/MUAHR C176200200013 35.0 59.0 C176200200014 ENDDATA 3 0 C176200200015 ENDSUBENT 14 0 C176200299999 ENDENTRY 2 0 C176299999999