ENTRY C2154 20150204 C150C215400000001 SUBENT C2154001 20150204 C150C215400100001 BIB 11 22 C215400100002 TITLE Ac, La, and Ce radioimpurities in 225Ac produced in C215400100003 40 - 200 MeV proton irradiations of thorium C215400100004 AUTHOR (J.W.Engle,J.W.Weidner,B.D.Ballard,M.E.Fassbender, C215400100005 L.A.Hudston,K.R.Jackman,D.E.Dry,L.E.Wolfsberg, C215400100006 L.J.Bitteker,J.L.Ullmann,M.S.Gulley,Ch.Pillai,G.Goff, C215400100007 E.R.Birnbaum,K.D.John,S.G.Mashnik,F.M.Nortier) C215400100008 INSTITUTE (1USALAS,1USAAFT) C215400100009 REFERENCE (J,RCA,102,569,2014) C215400100010 REL-REF (I,,J.W.Weidner+,J,ARI,70,2602,2012) Detailed C215400100011 description of experimental irradiations C215400100012 FACILITY (LINAC,1USALAS) Irradiations were performed at the C215400100013 Los Alamos National Laboratory's Neutron Science C215400100014 Center (LANSCE), proton beams of approximately 90-120 C215400100015 nA intensities with incident energies of 100 and C215400100016 200MeV. C215400100017 SAMPLE Thorium foil stacks were used as a sample. Each stack C215400100018 contained two sets of six thin thorium foils C215400100019 separated by aluminum energy degraders. C215400100020 METHOD (ACTIV,CHSEP) C215400100021 MONITOR (13-AL-27(P,X)11-NA-22,,SIG) C215400100022 ERR-ANALYS (DATA-ERR) No information given C215400100023 HISTORY (20150204C) Compiled by S.H. C215400100024 ENDBIB 22 0 C215400100025 NOCOMMON 0 0 C215400100026 ENDSUBENT 25 0 C215400199999 SUBENT C2154002 20150204 C150C215400200001 BIB 5 16 C215400200002 REACTION (90-TH-232(P,X)89-AC-227,CUM,SIG) C215400200003 STATUS (TABLE) Data taken from tab. 3 of the reference C215400200004 DETECTOR (SIBAR) Samples were assayed in eight chambers, each C215400200005 with a 300mm2 ruggedized Si surface barrier detector C215400200006 having a depletion depth of 100 mu-m, under a C215400200007 pressure of approximately 10 millitorr. C215400200008 DECAY-DATA (89-AC-227,21.8YR) C215400200009 (90-TH-227,18.68D) C215400200010 (88-RA-223,11.43D) C215400200011 (86-RN-219,3.96SEC) C215400200012 (84-PO-215,1.781MSEC,A,7.39,0.999998) C215400200013 METHOD Amount of reduced 227Ac was determined from its decay C215400200014 product 215Po. To reach equilibrium with 215Po parents C215400200015 to facilitate spectroscopic measurement required C215400200016 approximately 100-day waiting period following C215400200017 chemical separation C215400200018 ENDBIB 16 0 C215400200019 NOCOMMON 0 0 C215400200020 DATA 4 12 C215400200021 EN EN-ERR DATA DATA-ERR C215400200022 MEV MEV MB MB C215400200023 194.5 0.3 13.9 1.8 C215400200024 178.3 0.7 14.2 1.8 C215400200025 160.7 1.0 15.5 1.9 C215400200026 141.8 1.3 14.2 1.8 C215400200027 120.9 1.6 10.9 1.4 C215400200028 97.0 2.0 8.8 1.1 C215400200029 90.8 0.4 6.6 0.8 C215400200030 81.7 0.6 5.6 0.7 C215400200031 72.8 0.7 2.8 0.3 C215400200032 64.9 0.9 2.6 0.3 C215400200033 56.3 1.1 2.1 0.2 C215400200034 44.0 1.4 4.0 0.5 C215400200035 ENDDATA 14 0 C215400200036 ENDSUBENT 35 0 C215400299999 SUBENT C2154003 20150204 C150C215400300001 BIB 4 7 C215400300002 REACTION (90-TH-232(P,X)89-AC-226,CUM,SIG) C215400300003 STATUS (TABLE) Data taken from tab. 3 of the reference C215400300004 DETECTOR (SIBAR) Samples were assayed in eight chambers, each C215400300005 with a 300mm2 ruggedized Si surface barrier detector C215400300006 having a depletion depth of 100 mu-m, under a C215400300007 pressure of approximately 10 millitorr. C215400300008 DECAY-DATA (89-AC-226,29.4HR) C215400300009 ENDBIB 7 0 C215400300010 NOCOMMON 0 0 C215400300011 DATA 4 12 C215400300012 EN EN-ERR DATA DATA-ERR C215400300013 MEV MEV MB MB C215400300014 194.5 0.3 15.7 1.1 C215400300015 178.3 0.7 17.2 1.3 C215400300016 160.7 1.0 16.0 1.1 C215400300017 141.8 1.3 14.2 1.3 C215400300018 120.9 1.6 12.8 0.8 C215400300019 97.0 2.0 8.4 0.5 C215400300020 90.8 0.4 7.5 0.4 C215400300021 81.7 0.6 4.9 1.4 C215400300022 72.8 0.7 4.3 0.2 C215400300023 64.9 0.9 4.9 0.2 C215400300024 56.3 1.1 5.0 1.3 C215400300025 44.0 1.4 3.5 0.8 C215400300026 ENDDATA 14 0 C215400300027 ENDSUBENT 26 0 C215400399999 SUBENT C2154004 20150204 C150C215400400001 BIB 4 8 C215400400002 REACTION (90-TH-232(P,X)58-CE-139,CUM,SIG) C215400400003 STATUS (TABLE) Data taken from tab. 3 of the reference C215400400004 DETECTOR (HPGE) Following the separation the samples were C215400400005 counted on an HPGe detector (1min count length), and C215400400006 the integrated counts were compared with those C215400400007 obtained from the 5mL standards counted in the same C215400400008 geometry. C215400400009 DECAY-DATA (58-CE-139-G,137.64D,DG,166.0,0.800) C215400400010 ENDBIB 8 0 C215400400011 NOCOMMON 0 0 C215400400012 DATA 4 9 C215400400013 EN EN-ERR DATA DATA-ERR C215400400014 MEV MEV MB MB C215400400015 194.5 0.3 2.1 0.2 C215400400016 178.3 0.7 2.2 0.2 C215400400017 160.7 1.0 2.1 0.1 C215400400018 141.8 1.3 1.9 0.2 C215400400019 120.9 1.6 1.5 0.1 C215400400020 97.0 2.0 1.1 0.2 C215400400021 90.8 0.4 0.9 0.4 C215400400022 81.7 0.6 0.9 0.6 C215400400023 72.8 0.7 0.2 0.0 C215400400024 ENDDATA 11 0 C215400400025 ENDSUBENT 24 0 C215400499999 SUBENT C2154005 20150204 C150C215400500001 BIB 4 8 C215400500002 REACTION (90-TH-232(P,X)58-CE-141,CUM,SIG) C215400500003 STATUS (TABLE) Data taken from tab. 3 of the reference C215400500004 DETECTOR (HPGE) Following the separation the samples were C215400500005 counted on an HPGe detector (1min count length), and C215400500006 the integrated counts were compared with those C215400500007 obtained from the 5mL standards counted in the same C215400500008 geometry. C215400500009 DECAY-DATA (58-CE-141,32.51D,DG,145.0,0.4829) C215400500010 ENDBIB 8 0 C215400500011 NOCOMMON 0 0 C215400500012 DATA 4 12 C215400500013 EN EN-ERR DATA DATA-ERR C215400500014 MEV MEV MB MB C215400500015 194.5 0.3 13.1 0.9 C215400500016 178.3 0.7 15.8 1.2 C215400500017 160.7 1.0 16.3 4.0 C215400500018 141.8 1.3 17.0 1.9 C215400500019 120.9 1.6 19.8 1.4 C215400500020 97.0 2.0 24.5 2.7 C215400500021 90.8 0.4 24.7 1.2 C215400500022 81.7 0.6 25.9 1.2 C215400500023 72.8 0.7 26.5 1.2 C215400500024 64.9 0.9 28.1 1.2 C215400500025 56.3 1.1 28.4 1.1 C215400500026 44.0 1.4 30.4 1.6 C215400500027 ENDDATA 14 0 C215400500028 ENDSUBENT 27 0 C215400599999 SUBENT C2154006 20150204 C150C215400600001 BIB 4 8 C215400600002 REACTION (90-TH-232(P,X)58-CE-143,CUM,SIG) C215400600003 STATUS (TABLE) Data taken from tab. 3 of the reference C215400600004 DETECTOR (HPGE) Following the separation the samples were C215400600005 counted on an HPGe detector (1min count length), and C215400600006 the integrated counts were compared with those C215400600007 obtained from the 5mL standards counted in the same C215400600008 geometry. C215400600009 DECAY-DATA (58-CE-143,33.04HR,DG,293.0,0.428) C215400600010 ENDBIB 8 0 C215400600011 NOCOMMON 0 0 C215400600012 DATA 4 12 C215400600013 EN EN-ERR DATA DATA-ERR C215400600014 MEV MEV MB MB C215400600015 194.5 0.3 7.7 0.5 C215400600016 178.3 0.7 9.3 0.7 C215400600017 160.7 1.0 9.6 0.6 C215400600018 141.8 1.3 10.9 0.7 C215400600019 120.9 1.6 13.4 1.6 C215400600020 97.0 2.0 15.2 1.7 C215400600021 90.8 0.4 15.2 0.8 C215400600022 81.7 0.6 16.4 0.8 C215400600023 72.8 0.7 17.8 0.8 C215400600024 64.9 0.9 19.9 1.0 C215400600025 56.3 1.1 21.7 1.0 C215400600026 44.0 1.4 24.3 1.4 C215400600027 ENDDATA 14 0 C215400600028 ENDSUBENT 27 0 C215400699999 SUBENT C2154007 20150204 C150C215400700001 BIB 4 8 C215400700002 REACTION (90-TH-232(P,X)57-LA-140,IND,SIG) C215400700003 STATUS (TABLE) Data taken from tab. 3 of the reference C215400700004 DETECTOR (HPGE) Following the separation the samples were C215400700005 counted on an HPGe detector (1min count length), and C215400700006 the integrated counts were compared with those C215400700007 obtained from the 5mL standards counted in the same C215400700008 geometry. C215400700009 DECAY-DATA (57-LA-140,1.68D,DG,1596.0,0.954) C215400700010 ENDBIB 8 0 C215400700011 NOCOMMON 0 0 C215400700012 DATA 4 12 C215400700013 EN EN-ERR DATA DATA-ERR C215400700014 MEV MEV MB MB C215400700015 194.5 0.3 2.6 0.2 C215400700016 178.3 0.7 2.8 0.4 C215400700017 160.7 1.0 3.2 0.3 C215400700018 141.8 1.3 3.5 0.3 C215400700019 120.9 1.6 3.9 0.2 C215400700020 97.0 2.0 4.9 0.7 C215400700021 90.8 0.4 4.9 0.3 C215400700022 81.7 0.6 5.3 0.3 C215400700023 72.8 0.7 5.8 0.3 C215400700024 64.9 0.9 6.0 0.3 C215400700025 56.3 1.1 5.6 0.4 C215400700026 44.0 1.4 3.9 0.6 C215400700027 ENDDATA 14 0 C215400700028 ENDSUBENT 27 0 C215400799999 SUBENT C2154008 20150204 C150C215400800001 BIB 4 8 C215400800002 REACTION (90-TH-232(P,X)56-BA-140,CUM,SIG) C215400800003 STATUS (TABLE) Data taken from tab. 3 of the reference C215400800004 DETECTOR (HPGE) Following the separation the samples were C215400800005 counted on an HPGe detector (1min count length), and C215400800006 the integrated counts were compared with those C215400800007 obtained from the 5mL standards counted in the same C215400800008 geometry. C215400800009 DECAY-DATA (56-BA-140,12.75D) C215400800010 ENDBIB 8 0 C215400800011 NOCOMMON 0 0 C215400800012 DATA 4 12 C215400800013 EN EN-ERR DATA DATA-ERR C215400800014 MEV MEV MB MB C215400800015 194.5 0.3 8.0 0.8 C215400800016 178.3 0.7 10.0 0.8 C215400800017 160.7 1.0 10.6 0.8 C215400800018 141.8 1.3 12.0 0.8 C215400800019 120.9 1.6 13.6 0.9 C215400800020 97.0 2.0 16.8 1.9 C215400800021 90.8 0.4 17.1 1.1 C215400800022 81.7 0.6 18.5 1.1 C215400800023 72.8 0.7 19.7 1.2 C215400800024 64.9 0.9 22.3 1.4 C215400800025 56.3 1.1 25.8 1.4 C215400800026 44.0 1.4 30.9 2.0 C215400800027 ENDDATA 14 0 C215400800028 ENDSUBENT 27 0 C215400899999 ENDENTRY 8 0 C215499999999