ENTRY C2479 20200225 C191C247900000001 SUBENT C2479001 20200225 C191C247900100001 BIB 11 29 C247900100002 TITLE Search for Evidence of Ternary Fission Induced in C247900100003 Au197, Bi209, and Pu239 by Intermediate-Energy Helium C247900100004 Ions C247900100005 AUTHOR (D.L.Uhl,T.L.McDaniel,J.W.Cobble) C247900100006 REFERENCE (J,PR/C,4,1357,1971) C247900100007 #doi:10.1103/PhysRevC.4.1357 C247900100008 INSTITUTE (1USAPUR) C247900100009 FACILITY (CYCLO,1USAORL) C247900100010 (CYCLO,1USAANL) C247900100011 DETECTOR (GEMUC) Gas-flow Geiger counters. C247900100012 METHOD (CHSEP) Radiochemical separation procedures were C247900100013 developed and modified from existing techniques for C247900100014 the isotopes and target materials involved and C247900100015 purification procedures were repeated until C247900100016 sufficient decontamination of the ternary and C247900100017 binary-fission products was obtained. Counting was C247900100018 carried out in low-background (0.09-0.20-counts/min) C247900100019 gas-flow Geiger counters fitted with a surrounding C247900100020 anticoincidence guard counter. C247900100021 ANALYSIS (DECAY) C247900100022 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C247900100023 COMMENT Compiler's comment: Cross sections for 209Bi, 197Au, C247900100024 239Pu alpha absorptions are given as a function of C247900100025 compound nuclei excitation energies. Using the AME C247900100026 2016 the Q-values for 213At(a), 201Tl(a) and 243Cm(a) C247900100027 decays were deduced as 9254.0, 1534.0 and 6168.8 keV. C247900100028 These values could be used to reconstruct the alpha CC247900100029 beam energies. C247900100030 HISTORY (20200225C) BP C247900100031 ENDBIB 29 0 C247900100032 NOCOMMON 0 0 C247900100033 ENDSUBENT 32 0 C247900199999 SUBENT C2479002 20200225 C191C247900200001 BIB 3 9 C247900200002 REACTION (83-BI-209(A,F)12-MG-28,TER,SIG) C247900200003 SAMPLE 99.9999% pure bismuth and silver beads from United C247900200004 Mineral and Chemical Corporation, New York, were C247900200005 vacuum evaporated onto Lexan strips which were C247900200006 subsequently removed with dichloromethane. The C247900200007 brittle bismuth foils so produced were C247900200008 self-supporting and varied from 15-32 mg/cm2, the C247900200009 silver foils varied from 1-10 mg/cm2. C247900200010 STATUS (TABLE) Table I, page 1358. C247900200011 ENDBIB 9 0 C247900200012 NOCOMMON 0 0 C247900200013 DATA 3 6 C247900200014 E-EXC-CMP DATA DATA-ERR C247900200015 MEV NB NB C247900200016 31.9 0.5 0.5 C247900200017 32.6 1.8 0.5 C247900200018 33.4 1.6 0.5 C247900200019 38.5 4.4 0.6 C247900200020 43.4 8.0 0.9 C247900200021 44.9 19.0 2.0 C247900200022 ENDDATA 8 0 C247900200023 ENDSUBENT 22 0 C247900299999 SUBENT C2479003 20200225 C191C247900300001 BIB 3 9 C247900300002 REACTION (83-BI-209(A,F)20-CA-47,TER,SIG) C247900300003 SAMPLE 99.9999% pure bismuth and silver beads from United C247900300004 Mineral and Chemical Corporation, New York, were C247900300005 vacuum evaporated onto Lexan strips which were C247900300006 subsequently removed with dichloromethane. The C247900300007 brittle bismuth foils so produced were C247900300008 self-supporting and varied from 15-32 mg/cm2, the C247900300009 silver foils varied from 1-10 mg/cm2. C247900300010 STATUS (TABLE) Table I, page 1358. C247900300011 ENDBIB 9 0 C247900300012 NOCOMMON 0 0 C247900300013 DATA 4 2 C247900300014 E-EXC-CMP DATA DATA-ERR DATA-MAX C247900300015 MEV NB NB NB C247900300016 32.6 4.0 C247900300017 44.9 5.0 1.0 C247900300018 ENDDATA 4 0 C247900300019 ENDSUBENT 18 0 C247900399999 SUBENT C2479004 20200225 C191C247900400001 BIB 3 9 C247900400002 REACTION (83-BI-209(A,F)38-SR-89,TER,SIG) C247900400003 SAMPLE 99.9999% pure bismuth and silver beads from United C247900400004 Mineral and Chemical Corporation, New York, were C247900400005 vacuum evaporated onto Lexan strips which were C247900400006 subsequently removed with dichloromethane. The C247900400007 brittle bismuth foils so produced were C247900400008 self-supporting and varied from 15-32 mg/cm2, the C247900400009 silver foils varied from 1-10 mg/cm2. C247900400010 STATUS (TABLE) Table I, page 1358. C247900400011 ENDBIB 9 0 C247900400012 NOCOMMON 0 0 C247900400013 DATA 3 9 C247900400014 E-EXC-CMP DATA DATA-ERR C247900400015 MEV MICRO-B MICRO-B C247900400016 15.0 0.026 0.004 C247900400017 18.0 0.15 0.02 C247900400018 24.0 0.39 0.06 C247900400019 31.9 1.14 0.17 C247900400020 32.6 68.0 10.0 C247900400021 33.4 87.0 10.0 C247900400022 38.5 245.0 40.0 C247900400023 43.4 640.0 100.0 C247900400024 44.9 790.0 120.0 C247900400025 ENDDATA 11 0 C247900400026 ENDSUBENT 25 0 C247900499999 SUBENT C2479005 20200225 C191C247900500001 BIB 3 5 C247900500002 REACTION (79-AU-197(A,F)12-MG-28,TER,SIG) C247900500003 SAMPLE 1-mil 99.999% pure gold foils were obtained from C247900500004 United Mineral and Chemical Corporation and from C247900500005 Cominco American, Spokane, Washington in 1-in. strips. C247900500006 STATUS (TABLE) Table I, page 1358. C247900500007 ENDBIB 5 0 C247900500008 NOCOMMON 0 0 C247900500009 DATA 4 8 C247900500010 E-EXC-CMP DATA DATA-ERR DATA-MAX C247900500011 MEV NB NB NB C247900500012 32.5 0.8 0.7 C247900500013 39.0 0.4 1.5 C247900500014 40.4 1.6 1.9 C247900500015 45.6 0.0 0.9 C247900500016 51.6 0.5 C247900500017 64.7 1.4 0.8 C247900500018 76.6 15.0 4.0 C247900500019 77.1 27.0 6.0 C247900500020 ENDDATA 10 0 C247900500021 ENDSUBENT 20 0 C247900599999 SUBENT C2479006 20200225 C191C247900600001 BIB 3 5 C247900600002 REACTION (79-AU-197(A,F)20-CA-47,TER,SIG) C247900600003 SAMPLE 1-mil 99.999% pure gold foils were obtained from C247900600004 United Mineral and Chemical Corporation and from C247900600005 Cominco American, Spokane, Washington in 1-in. strips. C247900600006 STATUS (TABLE) Table I, page 1358. C247900600007 ENDBIB 5 0 C247900600008 NOCOMMON 0 0 C247900600009 DATA 4 6 C247900600010 E-EXC-CMP DATA DATA-ERR DATA-MAX C247900600011 MEV NB NB MB C247900600012 32.5 1.5 C247900600013 39.0 2.0 C247900600014 45.6 1.0 C247900600015 51.6 3.0 6.0 C247900600016 64.7 210.0 70.0 C247900600017 76.6 1730.0 520.0 C247900600018 ENDDATA 8 0 C247900600019 ENDSUBENT 18 0 C247900699999 SUBENT C2479007 20200225 C191C247900700001 BIB 3 5 C247900700002 REACTION (79-AU-197(A,F)38-SR-89,TER,SIG) C247900700003 SAMPLE 1-mil 99.999% pure gold foils were obtained from C247900700004 United Mineral and Chemical Corporation and from C247900700005 Cominco American, Spokane, Washington in 1-in. strips. C247900700006 STATUS (TABLE) Table I, page 1358. C247900700007 ENDBIB 5 0 C247900700008 NOCOMMON 0 0 C247900700009 DATA 3 11 C247900700010 E-EXC-CMP DATA DATA-ERR C247900700011 MEV MICRO-B MICRO-B C247900700012 19.2 0.005 0.001 C247900700013 21.6 0.007 0.001 C247900700014 32.5 0.74 0.11 C247900700015 39.0 8.7 1.3 C247900700016 40.4 17.4 2.6 C247900700017 45.6 36.2 5.4 C247900700018 51.6 140.0 60.0 C247900700019 64.7 340.0 140.0 C247900700020 66.0 1240.0 350.0 C247900700021 76.6 2700.0 1200.0 C247900700022 77.1 4800.0 800.0 C247900700023 ENDDATA 13 0 C247900700024 ENDSUBENT 23 0 C247900799999 SUBENT C2479008 20200225 C191C247900800001 BIB 3 6 C247900800002 REACTION (94-PU-239(A,F)ELEM/MASS,TER,SIG) C247900800003 SAMPLE The Pu239 target was fabricated at the Oak Ridge C247900800004 National Laboratory as a 2.1x2.1-cm foil containing C247900800005 10.2 mg/cm2 of plutonium metal coated with ~0.3 C247900800006 mg/cm2 of silver. C247900800007 STATUS (TABLE) Table I, page 1358. C247900800008 ENDBIB 6 0 C247900800009 COMMON 1 3 C247900800010 E-EXC-CMP C247900800011 MEV C247900800012 35.4 C247900800013 ENDCOMMON 3 0 C247900800014 DATA 5 3 C247900800015 ELEMENT MASS DATA DATA-ERR DATA-MAX C247900800016 NO-DIM NO-DIM MICRO-B MICRO-B MICRO-B C247900800017 12.0 28.0 2.400 0.600 C247900800018 20.0 47.0 0.001 C247900800019 38.0 89.0 20.0 2.0 C247900800020 ENDDATA 5 0 C247900800021 ENDSUBENT 20 0 C247900899999 ENDENTRY 8 0 C247999999999