ENTRY C2251 20241031 C243C225100000001 SUBENT C2251001 20241031 C243C225100100001 BIB 11 46 C225100100002 TITLE Large scale accelerator production of 225Ac: Effective C225100100003 cross sections for 78 - 192 MeV protons incident on C225100100004 232Th targets C225100100005 AUTHOR (J.R.Griswold,D.G.Medvedev,J.W.Engle,R.Copping, C225100100006 J.M.Fitzsimmons,V.Radchenko,J.C.Cooley,M.E.Fassbender, C225100100007 D.L.Denton,K.E.Murphy,A.C.Owens,E.R.Birnbaum,K.D.John, C225100100008 F.M.Nortier,D.W.Stracener,L.H.Heilbronn,L.F.Mausner, C225100100009 S.Mirzadeh) C225100100010 INSTITUTE (1USAORL,1USATEN,1USABNL,1USALAS) C225100100011 REFERENCE (J,ARI,118,366,2016) C225100100012 #doi:10.1016/j.apradiso.2016.09.026 C225100100013 FACILITY (LINAC,1USALAS) Isotope Production Facility (IPF) uses C225100100014 a 100-MeV proton beam extracted from the main LANSCE C225100100015 linear accelerator. IPF was used to irradiate samples C225100100016 at energies bellow 100 MeV C225100100017 (LINAC,1USABNL) The Brookhaven Linac Isotope Producer C225100100018 BLIP consists of a beam line and target area for C225100100019 isotope production that uses protons up to 200 MeV C225100100020 energy and 110 mu-A intensity from the BNL Linac. C225100100021 DETECTOR (HPGE) Canberra Model GC2020 High-Purity Germanium C225100100022 detector with a relative efficiency of 20% was used C225100100023 for radioactivity measurements C225100100024 METHOD (ACTIV,CHSEP). Activation method was used followed by C225100100025 chemical separation. Samples were irradiated for C225100100026 period from 3 to 220 hours by average current ranging C225100100027 from 30 mu-A (BLIP) to 200 mu-A (IPF) C225100100028 SAMPLE For irradiations at IPF metallic Th was arc melted and C225100100029 rolled to thickness 637.6 mg/cm2. The purity was betterC225100100030 than 99.6%. The discs were electron-beam welded into C225100100031 machined Inconel capsules. Three different target were C225100100032 used at IPF. C225100100033 For the irradiations at BLIP, Th foils (0.125 mm, C225100100034 99.5% purity) were purchased from Goodfellow C225100100035 Corporation. For a typical irradiation, a 27.9 mm C225100100036 circle was cut from the foil and wrapped in 0.025 mm C225100100037 Al metal foil C225100100038 ERR-ANALYS (ERR-1,6.7,11.9) Systematic uncertainty in target mass C225100100039 (ERR-2,7.,10.) Systematic uncertainty in beam intensityC225100100040 (ERR-3) Systematic uncertainty in sampling and C225100100041 detector efficiency C225100100042 (ERR-T) Total uncertainty calculated using error C225100100043 propagation C225100100044 FLAG (1.) Irradiated at IPF C225100100045 (2.) Irradiated at BLIB C225100100046 HISTORY (20170228C) Compiled by S.H. C225100100047 (20241028A) OS. DECAY-DATA in subs.2,6 corrected C225100100048 ENDBIB 46 0 C225100100049 COMMON 2 3 C225100100050 EN-RSL ERR-3 C225100100051 MEV PER-CENT C225100100052 0.4 5. C225100100053 ENDCOMMON 3 0 C225100100054 ENDSUBENT 53 0 C225100199999 SUBENT C2251002 20241031 C243C225100200001 BIB 5 6 C225100200002 REACTION (90-TH-232(P,X)89-AC-225,CUM,SIG) C225100200003 STATUS (TABLE,,J.R.Griswold+,J,ARI,118,366,2016) Tabs.3, 4. C225100200004 DECAY-DATA (89-AC-225,9.92D) C225100200005 (83-BI-213,,DG,440.5,0.259) C225100200006 RAD-DET (83-BI-213,DG) C225100200007 HISTORY (20241028A) DECAY-DATA corrected, RAD-DET added C225100200008 ENDBIB 6 0 C225100200009 NOCOMMON 0 0 C225100200010 DATA 4 6 C225100200011 EN DATA ERR-T FLAG C225100200012 MEV MB MB NO-DIM C225100200013 77.8 3.6 0.5 1. C225100200014 89.6 6.6 0.9 1. C225100200015 128. 10.8 1.5 2. C225100200016 151.5 13.0 1.3 2. C225100200017 170.7 16.7 1.6 2. C225100200018 191.8 14.0 1.6 2. C225100200019 ENDDATA 8 0 C225100200020 ENDSUBENT 19 0 C225100299999 SUBENT C2251003 20170228 C167C2251 3 1 BIB 3 5 C2251 3 2 REACTION (90-TH-232(P,X)89-AC-226,,SIG) C2251 3 3 Contribution from other decay branches were considered C2251 3 4 insignificant C2251 3 5 STATUS (TABLE) Data taken from tab.3,4 of the reference C2251 3 6 DECAY-DATA (89-AC-226,29.37HR,DG,230.0,0.269) C2251 3 7 ENDBIB 5 0 C2251 3 8 NOCOMMON 0 0 C2251 3 9 DATA 4 4 C2251 3 10 EN DATA ERR-T FLAG C2251 3 11 MEV MB MB NO-DIM C2251 3 12 128. 8.1 1.0 2. C2251 3 13 151.5 11.4 1.3 2. C2251 3 14 170.7 13.0 1.5 2. C2251 3 15 191.8 14.7 1.7 2. C2251 3 16 ENDDATA 6 0 C2251 3 17 ENDSUBENT 16 0 C2251 399999 SUBENT C2251004 20170228 C167C2251 4 1 BIB 3 5 C2251 4 2 REACTION (90-TH-232(P,X)89-AC-227,,SIG) C2251 4 3 Contribution from other decay branches were considered C2251 4 4 insignificant C2251 4 5 STATUS (TABLE) Data taken from tab.3,4 of the reference C2251 4 6 DECAY-DATA (89-AC-227,21.77YR,DG,236.0,0.129) C2251 4 7 ENDBIB 5 0 C2251 4 8 NOCOMMON 0 0 C2251 4 9 DATA 4 6 C2251 4 10 EN DATA ERR-T FLAG C2251 4 11 MEV MB MB NO-DIM C2251 4 12 77.8 4.5 0.7 1. C2251 4 13 89.6 6.3 1.0 1. C2251 4 14 128. 26.5 3.5 2. C2251 4 15 151.5 18.6 2.8 2. C2251 4 16 170.7 14.0 1.9 2. C2251 4 17 191.8 16.2 2.7 2. C2251 4 18 ENDDATA 8 0 C2251 4 19 ENDSUBENT 18 0 C2251 499999 SUBENT C2251005 20170228 C167C2251 5 1 BIB 3 3 C2251 5 2 REACTION (90-TH-232(P,X)90-TH-227,CUM,SIG) C2251 5 3 STATUS (TABLE) Data taken from tab.3,4 of the reference C2251 5 4 DECAY-DATA (90-TH-227,18.72D,DG,236.0,0.129) C2251 5 5 ENDBIB 3 0 C2251 5 6 NOCOMMON 0 0 C2251 5 7 DATA 4 6 C2251 5 8 EN DATA ERR-T FLAG C2251 5 9 MEV MB MB NO-DIM C2251 5 10 77.8 37.2 5.0 1. C2251 5 11 89.6 35.8 4.9 1. C2251 5 12 128. 26.3 4.0 2. C2251 5 13 151.5 26.0 2.9 2. C2251 5 14 170.7 24.3 2.7 2. C2251 5 15 191.8 25.8 3.4 2. C2251 5 16 ENDDATA 8 0 C2251 5 17 ENDSUBENT 16 0 C2251 599999 SUBENT C2251006 20241031 C243C225100600001 BIB 5 6 C225100600002 REACTION (90-TH-232(P,X)90-TH-228,CUM,SIG) C225100600003 STATUS (TABLE,,J.R.Griswold+,J,ARI,118,366,2016) Tabs.3, 4. C225100600004 DECAY-DATA (90-TH-228,697.15D) C225100600005 (82-PB-212,,DG,238.6,0.436) C225100600006 RAD-DET (82-PB-212,DG) C225100600007 HISTORY (20241028A) DECAY-DATA corrected, RAD-DET added C225100600008 ENDBIB 6 0 C225100600009 NOCOMMON 0 0 C225100600010 DATA 4 6 C225100600011 EN DATA ERR-T FLAG C225100600012 MEV MB MB NO-DIM C225100600013 77.8 56.7 7.2 1. C225100600014 89.6 47.6 6.1 1. C225100600015 128. 42.5 4.0 2. C225100600016 151.5 46.7 4.5 2. C225100600017 170.7 41.8 3.9 2. C225100600018 191.8 37.1 3.1 2. C225100600019 ENDDATA 8 0 C225100600020 ENDSUBENT 19 0 C225100699999 SUBENT C2251007 20170228 C167C2251 7 1 BIB 3 3 C2251 7 2 REACTION (90-TH-232(P,X)42-MO-99,CUM,SIG) C2251 7 3 STATUS (TABLE) Data taken from tab.3,4 of the reference C2251 7 4 DECAY-DATA (42-MO-99,65.98HR,DG,739.5,0.123) C2251 7 5 ENDBIB 3 0 C2251 7 6 NOCOMMON 0 0 C2251 7 7 DATA 4 6 C2251 7 8 EN DATA ERR-T FLAG C2251 7 9 MEV MB MB NO-DIM C2251 7 10 77.8 32.7 4.2 1. C2251 7 11 89.6 35.9 4.6 1. C2251 7 12 128. 29.6 4.2 2. C2251 7 13 151.5 34.9 3.4 2. C2251 7 14 170.7 36.3 3.4 2. C2251 7 15 191.8 25.8 3.0 2. C2251 7 16 ENDDATA 8 0 C2251 7 17 ENDSUBENT 16 0 C2251 799999 SUBENT C2251008 20170228 C167C2251 8 1 BIB 3 3 C2251 8 2 REACTION (90-TH-232(P,X)56-BA-140,CUM,SIG) C2251 8 3 STATUS (TABLE) Data taken from tab.3,4 of the reference C2251 8 4 DECAY-DATA (56-BA-140,12.75D,DG,537.3,0.244) C2251 8 5 ENDBIB 3 0 C2251 8 6 NOCOMMON 0 0 C2251 8 7 DATA 4 6 C2251 8 8 EN DATA ERR-T FLAG C2251 8 9 MEV MB MB NO-DIM C2251 8 10 77.8 14.2 1.8 1. C2251 8 11 89.6 11.7 1.7 1. C2251 8 12 128. 10.9 1.5 2. C2251 8 13 151.5 13.4 1.4 2. C2251 8 14 170.7 14.0 1.7 2. C2251 8 15 191.8 5.2 1.1 2. C2251 8 16 ENDDATA 8 0 C2251 8 17 ENDSUBENT 16 0 C2251 899999 SUBENT C2251009 20170228 C167C2251 9 1 BIB 3 3 C2251 9 2 REACTION (90-TH-232(P,X)58-CE-139,CUM,SIG) C2251 9 3 STATUS (TABLE) Data taken from tab.3,4 of the reference C2251 9 4 DECAY-DATA (58-CE-139-G,137.64D,DG,165.9,0.800) C2251 9 5 ENDBIB 3 0 C2251 9 6 NOCOMMON 0 0 C2251 9 7 DATA 4 6 C2251 9 8 EN DATA ERR-T FLAG C2251 9 9 MEV MB MB NO-DIM C2251 9 10 77.8 0.4 0.1 1. C2251 9 11 89.6 0.6 0.1 1. C2251 9 12 128. 3.6 0.5 2. C2251 9 13 151.5 1.4 0.2 2. C2251 9 14 170.7 1.6 0.2 2. C2251 9 15 191.8 1.5 0.2 2. C2251 9 16 ENDDATA 8 0 C2251 9 17 ENDSUBENT 16 0 C2251 999999 SUBENT C2251010 20170228 C167C2251 10 1 BIB 3 3 C2251 10 2 REACTION (90-TH-232(P,X)58-CE-141,CUM,SIG) C2251 10 3 STATUS (TABLE) Data taken from tab.3,4 of the reference C2251 10 4 DECAY-DATA (58-CE-141,32.50D,DG,145.4,0.483) C2251 10 5 ENDBIB 3 0 C2251 10 6 NOCOMMON 0 0 C2251 10 7 DATA 4 3 C2251 10 8 EN DATA ERR-T FLAG C2251 10 9 MEV MB MB NO-DIM C2251 10 10 89.6 15.8 2.0 1. C2251 10 11 128. 11.5 1.6 2. C2251 10 12 191.8 9.4 1.1 2. C2251 10 13 ENDDATA 5 0 C2251 10 14 ENDSUBENT 13 0 C2251 1099999 SUBENT C2251011 20170228 C167C2251 11 1 BIB 3 3 C2251 11 2 REACTION (90-TH-232(P,X)58-CE-143,CUM,SIG) C2251 11 3 STATUS (TABLE) Data taken from tab.3,4 of the reference C2251 11 4 DECAY-DATA (58-CE-143,33.04HR,DG,293.3,0.428) C2251 11 5 ENDBIB 3 0 C2251 11 6 NOCOMMON 0 0 C2251 11 7 DATA 4 5 C2251 11 8 EN DATA ERR-T FLAG C2251 11 9 MEV MB MB NO-DIM C2251 11 10 77.8 16.5 2.1 1. C2251 11 11 128. 7.0 1.0 2. C2251 11 12 151.5 8.1 0.8 2. C2251 11 13 170.7 7.9 0.7 2. C2251 11 14 191.8 7.2 0.7 2. C2251 11 15 ENDDATA 7 0 C2251 11 16 ENDSUBENT 15 0 C2251 1199999 SUBENT C2251012 20170228 C167C2251 12 1 BIB 3 3 C2251 12 2 REACTION (90-TH-232(P,X)58-CE-144,CUM,SIG) C2251 12 3 STATUS (TABLE) Data taken from tab.3,4 of the reference C2251 12 4 DECAY-DATA (58-CE-144,284.9D,DG,133.5,0.111) C2251 12 5 ENDBIB 3 0 C2251 12 6 NOCOMMON 0 0 C2251 12 7 DATA 4 6 C2251 12 8 EN DATA ERR-T FLAG C2251 12 9 MEV MB MB NO-DIM C2251 12 10 77.8 12.6 1.6 1. C2251 12 11 89.6 8.7 1.4 1. C2251 12 12 128. 10.0 1.5 2. C2251 12 13 151.5 6.9 0.7 2. C2251 12 14 170.7 6.3 0.6 2. C2251 12 15 191.8 6.4 0.8 2. C2251 12 16 ENDDATA 8 0 C2251 12 17 ENDSUBENT 16 0 C2251 1299999 ENDENTRY 12 0 C225199999999