ENTRY 10974 20200229 14641097400000001 SUBENT 10974001 20200229 14641097400100001 BIB 14 35 1097400100002 INSTITUTE (1USAINL) 1097400100003 REFERENCE (R,ENICO-10016,1983) 1097400100004 AUTHOR (T.C.Chapman,R.L.Tromp,W.A.Emel) 1097400100005 TITLE Shielded mass 136 yield from fast fission of 233U, 1097400100006 235U,237Np,and 239-242Pu. 1097400100007 FACILITY (REAC,1USAINL) Experimental breeder reactor II. 1097400100008 INC-SOURCE (REAC) 1097400100009 The irradiation time was 1340 hrs with reactor at 1097400100010 62.5 MW. 1097400100011 INC-SPECT Neutron spectrum mean energy ranged from 250-485 keV. 1097400100012 METHOD (CHSEP) Chemical separation followed by isotope 1097400100013 isotope dilution mass spectrometry. 1097400100014 SAMPLE 99.99 percent pure oxide powder targets were 1097400100015 individually mixed with 99.99 percent nickel powder. 1097400100016 Row 8 was used for irradiation location. 1097400100017 MONITOR Number of fissions determined by measuring 90 percent 1097400100018 nuclides in heavy mass peak and estimating remainder. 1097400100019 CORRECTION Corrections for the presence of minor isotopes 1097400100020 and for the natural barium content of the separated 1097400100021 barium samples were made. 1097400100022 No correction for the capture of 135Cs into the mass 1097400100023 136 chain was made. 1097400100024 ERR-ANALYS (DATA-ERR) 1097400100025 The reported standard deviation includes allowances for1097400100026 known systematic errors as well as for random 1097400100027 measurement errors.-See ref. ENICO-1001,(1979), 1097400100028 ICP-1050-IV(1979), ICP-1050-II(1977),ENICO-1091(1981),1097400100029 ICP-1050-III(1977). 1097400100030 STATUS (TABLE) Data taken from report ENICO-10016 Oct.,1983, 1097400100031 Table VIII. 1097400100032 (APRVD) T.C.Chapman, 84/2/21. 1097400100033 HISTORY (19830104C) 1097400100034 (20200226A) OS. Changed EN-DUMMY, changed REACTION SF8 1097400100035 FIS -> FST, converted to lower case, 1097400100036 various BIB changes 1097400100037 ENDBIB 35 0 1097400100038 COMMON 1 3 1097400100039 EN-DUMMY 1097400100040 KEV 1097400100041 360. 1097400100042 ENDCOMMON 3 0 1097400100043 ENDSUBENT 42 0 1097400199999 SUBENT 10974002 20200229 14641097400200001 BIB 2 7 1097400200002 REACTION (92-U-233(N,F)56-BA-136,CUM,FY,,FST) 1097400200003 SAMPLE Compound U3-O8. Two capsules, 472 and 488 mgms. 1097400200004 (92-U-233,ENR=0.99540) 233U 99.540% 1097400200005 (92-U-234,ENR=0.00184) 234U 0.184% 1097400200006 (92-U-235,ENR=0.00062) 235U 0.062% 1097400200007 (92-U-236,ENR=0.00013) 236U 0.013% 1097400200008 (92-U-238,ENR=0.00203) 238U 0.203% 1097400200009 ENDBIB 7 0 1097400200010 NOCOMMON 0 0 1097400200011 DATA 2 1 1097400200012 DATA DATA-ERR 1097400200013 PC/FIS PER-CENT 1097400200014 0.1073 1.5 1097400200015 ENDDATA 3 0 1097400200016 ENDSUBENT 15 0 1097400299999 SUBENT 10974003 20200229 14641097400300001 BIB 2 7 1097400300002 REACTION (92-U-235(N,F)56-BA-136,CUM,FY,,FST) 1097400300003 SAMPLE Compound U3-O8. Three capsules, 695,834 and 803 MGMS.1097400300004 (92-U-233,ENR=0.000) 233U 0.000% 1097400300005 (92-U-234,ENR=0.00260) 234U 0.260% 1097400300006 (92-U-235,ENR=0.98298) 235U 98.208% 1097400300007 (92-U-236,ENR=0.00937) 236U 0.937% 1097400300008 (92-U-238,ENR=0.00595) 238U 0.595% 1097400300009 ENDBIB 7 0 1097400300010 NOCOMMON 0 0 1097400300011 DATA 2 1 1097400300012 DATA DATA-ERR 1097400300013 PC/FIS PER-CENT 1097400300014 0.0091 3.3 1097400300015 ENDDATA 3 0 1097400300016 ENDSUBENT 15 0 1097400399999 SUBENT 10974004 20200229 14641097400400001 BIB 2 7 1097400400002 REACTION (93-NP-237(N,F)56-BA-136,CUM,FY,,FST) 1097400400003 SAMPLE Compound Np-O2. Two capsules, 5192 and 4683 mgms. 1097400400004 237Np greater than 99.9 percent 1097400400005 U 7 ppm 1097400400006 Th less than .2 ppm 1097400400007 Pu less than .1 ppm 1097400400008 Am less than .1 ppm 1097400400009 ENDBIB 7 0 1097400400010 NOCOMMON 0 0 1097400400011 DATA 2 1 1097400400012 DATA DATA-ERR 1097400400013 PC/FIS PER-CENT 1097400400014 0.0618 1.5 1097400400015 ENDDATA 3 0 1097400400016 ENDSUBENT 15 0 1097400499999 SUBENT 10974005 20200229 14641097400500001 BIB 2 7 1097400500002 REACTION (94-PU-239(N,F)56-BA-136,CUM,FY,,FST) 1097400500003 SAMPLE Compound Pu-O2. Three capsules with 755,659,754 mgms. 1097400500004 (94-PU-238,ENR=0.000) 238Pu 0.000% 1097400500005 (94-PU-239,ENR=0.99100) 239Pu 99.100% 1097400500006 (94-PU-240,ENR=0.00888) 240Pu 0.888% 1097400500007 (94-PU-241,ENR=0.00014) 241Pu 0.014% 1097400500008 (94-PU-241,ENR=0.000) 242Pu 0.000% 1097400500009 ENDBIB 7 0 1097400500010 NOCOMMON 0 0 1097400500011 DATA 2 1 1097400500012 DATA DATA-ERR 1097400500013 PC/FIS PER-CENT 1097400500014 0.1095 1.3 1097400500015 ENDDATA 3 0 1097400500016 ENDSUBENT 15 0 1097400599999 SUBENT 10974006 20200229 14641097400600001 BIB 2 7 1097400600002 REACTION (94-PU-240(N,F)56-BA-136,CUM,FY,,FST) 1097400600003 SAMPLE Compound Pu-O2. Two capsules, 3746 and 3808 mgms. 1097400600004 (94-PU-238,ENR=0.00002) 238Pu 0.002% 1097400600005 (94-PU-239,ENR=0.00769) 239Pu 0.769% 1097400600006 (94-PU-240,ENR=0.98426) 240Pu 98.426% 1097400600007 (94-PU-241,ENR=0.00630) 241Pu 0.630% 1097400600008 (94-PU-242,ENR=0.00173) 242Pu 0.173% 1097400600009 ENDBIB 7 0 1097400600010 NOCOMMON 0 0 1097400600011 DATA 2 1 1097400600012 DATA DATA-ERR 1097400600013 PC/FIS PER-CENT 1097400600014 0.0495 8.2 1097400600015 ENDDATA 3 0 1097400600016 ENDSUBENT 15 0 1097400699999 SUBENT 10974007 20200229 14641097400700001 BIB 2 7 1097400700002 REACTION (94-PU-241(N,F)56-BA-136,CUM,FY,,FST) 1097400700003 SAMPLE Compound Pu-O2. Two capsules, 638 and 755 mgms. 1097400700004 238Pu less than 0.009 percent 1097400700005 (94-PU-239,ENR=0.00862) 239Pu 0.862% 1097400700006 (94-PU-240,ENR=0.02973) 240Pu 2.973% 1097400700007 (94-PU-241,ENR=0.94636) 241Pu 94.636% 1097400700008 (94-PU-242,ENR=0.01520) 242Pu 1.520% 1097400700009 ENDBIB 7 0 1097400700010 NOCOMMON 0 0 1097400700011 DATA 2 1 1097400700012 DATA DATA-ERR 1097400700013 PC/FIS PER-CENT 1097400700014 0.0158 1.3 1097400700015 ENDDATA 3 0 1097400700016 ENDSUBENT 15 0 1097400799999 SUBENT 10974008 20200229 14641097400800001 BIB 2 7 1097400800002 REACTION (94-PU-242(N,F)56-BA-136,CUM,FY,,FST) 1097400800003 SAMPLE Compound Pu-O2. Two capsules, 5699 and 4283 mgms. 1097400800004 (94-PU-238,ENR=0.000) 238Pu 0.000% 1097400800005 (94-PU-239,ENR=0.00756) 239Pu 0.756% 1097400800006 (94-PU-240,ENR=0.00005) 240Pu 0.005% 1097400800007 (94-PU-241,ENR=0.00005) 241Pu 0.005% 1097400800008 (94-PU-242,ENR=0.99189) 242Pu 99.189% 1097400800009 ENDBIB 7 0 1097400800010 NOCOMMON 0 0 1097400800011 DATA 2 1 1097400800012 DATA DATA-ERR 1097400800013 PC/FIS PER-CENT 1097400800014 0.0081 4.4 1097400800015 ENDDATA 3 0 1097400800016 ENDSUBENT 15 0 1097400899999 ENDENTRY 8 0 1097499999999