ENTRY O0357 19990712 0000O035700000001 SUBENT O0357001 19990712 0000O035700100001 BIB 11 37 O035700100002 TITLE Production of Heavy Nuclides in 440-MeV Proton Fission O035700100003 Of Uranium. O035700100004 AUTHOR (J.J.HOGAN,N.SUGARMAN) O035700100005 INSTITUTE (1USACHI) The Enrico Fermi Institute and Department of O035700100006 Chemistry. O035700100007 REFERENCE (J,PR,182,1210,1969) O035700100008 HISTORY (19970610C) O035700100009 (19970616U) Last checking has been done. O035700100010 SAMPLE A 1-Mil Uranium Target Foil was Surrounded by 1-Mil Al O035700100011 Catcher Foils.The Target Stacks For the First O035700100012 Experiments on a Given Element Also Contained a 1-Mil O035700100013 Al Foil For Impurity Activitation Situated Downstream O035700100014 From the Target and Catchers. O035700100015 The U Foils were of Natural Isotopic Composition, O035700100016 Nominally 1-Mil Thick and 1.0*1.5 Cm in Size.The O035700100017 Average Thickness,Ranging from 40 to 43 Mg/Cm**2,was O035700100018 Determined by Weighing the Target and Carefully O035700100019 Measuring Its Size. O035700100020 ADD-RES (RANGE) The Recoil Properties of 20 Nuclides of Mass O035700100021 About 140 Formed in the 440-MeV Proton Fission of O035700100022 Uranium were Determined. The Average Kinetic Energy,O035700100023 Cascade Deposition Energy and Angular Anisotropy ForO035700100024 Each Fission Product were Calculated from the RecoilO035700100025 Results. O035700100026 (Z-DIS) O035700100027 FACILITY (ISOCY,1USAORL) O035700100028 DETECTOR (PROPC).For the Determination of 85-Min Ba-139. O035700100029 (NAICR) O035700100030 (SOLST).A Li-Drifted Solid-State Ge Detector For Ba. O035700100031 (GELI).The Ce Samples were Counted on a Solid-State O035700100032 Ge-Li Detector. O035700100033 METHOD (STTA) O035700100034 (INTB).The Period of Irradiation Varied from 1 Min For O035700100035 The Short-Lived Cs-139 to 2 Hr For the Long-Lived Ce O035700100036 Isotopes. O035700100037 (CHSEP) O035700100038 STATUS (TABLE) O035700100039 ENDBIB 37 0 O035700100040 NOCOMMON 0 0 O035700100041 ENDSUBENT 40 0 O035700199999 SUBENT O0357002 19990712 0000O035700200001 BIB 2 4 O035700200002 REACTION ((92-U-0(P,F)55-CS-139,CUM,FY)/ O035700200003 (92-U-0(P,F)56-BA-139,IND,FY)) O035700200004 ERR-ANALYS (ERR-T).The Uncertainty is Reported by Authors. O035700200005 The Error Arising from the Counting Statistics. O035700200006 ENDBIB 4 0 O035700200007 NOCOMMON 0 0 O035700200008 DATA 3 1 O035700200009 EN DATA ERR-T O035700200010 MEV NO-DIM NO-DIM O035700200011 147. 0.806 0.029 O035700200012 ENDDATA 3 0 O035700200013 ENDSUBENT 12 0 O035700299999 SUBENT O0357003 19990712 0000O035700300001 BIB 3 18 O035700300002 REACTION ((92-U-0(P,F)59-PR-139,CUM,FY)/ O035700300003 (92-U-0(P,F)58-CE-139,IND,FY)) O035700300004 COMMENT /by Authors/.This Measurement was Performed in Two O035700300005 Ways. O035700300006 In the Cumulative Procedure,Three Aliquots were Taken O035700300007 After 0.1,1.0, and 1.2 Half-Lives of Pr-139,and O035700300008 Analyzed For Ce-139 Activity. O035700300009 In the Milking Experiment,Ce was Separated from a O035700300010 Single Aliquot from the Same Bombardment As That Above O035700300011 After 0.1,1.0 and 12 Half-Lives of Pr-139.The Last Two O035700300012 Samples Determine the Activity of Pr-139 at the End of O035700300013 Bombardment.This Value was Calculated by a Least- O035700300014 Squares Analysis in Which the Activity of Each Sample O035700300015 Was Weighted by the Total Number of Observed Counts. O035700300016 The Cross-Section Ratio,Calculated by Weighting the O035700300017 Results of the Two Experiments by the Squares of the O035700300018 Error. O035700300019 ERR-ANALYS (ERR-T).The Uncertainty is Reported by Authors. O035700300020 ENDBIB 18 0 O035700300021 NOCOMMON 0 0 O035700300022 DATA 3 1 O035700300023 EN DATA ERR-T O035700300024 MEV NO-DIM NO-DIM O035700300025 147. 0.426 0.01 O035700300026 ENDDATA 3 0 O035700300027 ENDSUBENT 26 0 O035700399999 SUBENT O0357004 19990712 0000O035700400001 BIB 3 8 O035700400002 REACTION ((92-U-0(P,F)58-CE-139,CUM,FY)/ O035700400003 (92-U-0(P,F)56-BA-139,CUM,FY)) O035700400004 COMMENT /by Authors/.The Experiment Relating the Cumulative O035700400005 Yield of Neutron-Deficient and Neutron-Excess Products O035700400006 Was Performed by Analyses For Cumulative Ce and Ba, O035700400007 Respectively. O035700400008 ERR-ANALYS (ERR-T).The Uncertainty is Reported by Authors. O035700400009 The Error Arising from the Counting Statistics. O035700400010 ENDBIB 8 0 O035700400011 NOCOMMON 0 0 O035700400012 DATA 3 1 O035700400013 EN DATA ERR-T O035700400014 MEV NO-DIM NO-DIM O035700400015 147. 0.545 0.015 O035700400016 ENDDATA 3 0 O035700400017 ENDSUBENT 16 0 O035700499999 ENDENTRY 4 0 O035799999999