ENTRY 13598 20120714 13841359800000001 SUBENT 13598001 20120714 13841359800100001 BIB 13 41 1359800100002 INSTITUTE (1USALAS,1USAAI,1USABNW,2AUSIRK) 1359800100003 REFERENCE (J,NSE,124,219,199610) 1359800100004 (C,94GATLIN,1,275,1994) - Prelim. data except for 61Ni 1359800100005 (R,LA-UR-94-1593,1994) - Prelim. data except for 61Ni 1359800100006 AUTHOR (R.C.Haight,D.W.Kneff,B.M.Oliver,L.R.Greenwood, 1359800100007 H.Vonach) 1359800100008 TITLE Helium production by 9.85-MeV neutrons in elemental 1359800100009 iron, nickel, and copper and in 56Fe and 58,60,61Ni 1359800100010 FACILITY (VDGT,1USALAS) Los Alamos Ion Beam Facility 1359800100011 INC-SOURCE (P-T) 1359800100012 METHOD (ACTIV,HE-AC) Activation, followed by isotope-dilution 1359800100013 gas mass spectrometry. 1359800100014 SAMPLE The sample package consisted of foils, thicker pure- 1359800100015 element disks, and irregular pieces (chunks) of 1359800100016 separated isotopes in metallic form. The foils 1359800100017 were used for dosimetry, whereas the thicker disks and 1359800100018 the irregular pieces were later analyzed for helium 1359800100019 produced in the irradiation. Both natural elements and 1359800100020 enriched isotopes, including iron, nickel, and copper 1359800100021 and 54Fe, 56Fe, 58Ni, 60Ni, and 61Ni were in the 1359800100022 package. The total thickness of material in the 1359800100023 package was ~11 g/cm2. 1359800100024 DETECTOR (GE) Calibrated germanium gamma-ray detectors at 1359800100025 Argonne National Laboratory. 1359800100026 CORRECTION Corrected for: 1359800100027 .contamination due to low-energy neutrons produced by 1359800100028 triton breakup in the gas cell and down-scattered 1359800100029 neutrons within the sample package 1359800100030 ERR-ANALYS (ERR-T) Total uncertainty includes uncertainties 1359800100031 (ERR-1) Correlated uncertainty for gas-out neutrons 1359800100032 (ERR-2) Uncertainty due to secondary neutrons produced 1359800100033 in sample 1359800100034 (ERR-3) Activity measurement uncertainty 1359800100035 (ERR-4) Helium concentration measurement uncertainty 1359800100036 (MONIT-ERR) Uncertainty in reference cross section 1359800100037 STATUS (TABLE) Data taken from Table 4 in NSE,124,219,1996 1359800100038 No reply from R. Haight to author proof. 1359800100039 HISTORY (19950215C) 1359800100040 (19970204A) BIB and Data updated to published reference1359800100041 (20120711A) SD:Updated to new date formats. BIB update.1359800100042 Refs on 94GATLIN and LA-UR-94-1593 were added. 1359800100043 ENDBIB 41 0 1359800100044 COMMON 2 3 1359800100045 EN EN-RSL-FW 1359800100046 MEV MEV 1359800100047 9.85 0.6 1359800100048 ENDCOMMON 3 0 1359800100049 ENDSUBENT 48 0 1359800199999 SUBENT 13598002 19970204 00001359800200001 BIB 4 10 1359800200002 REACTION (26-FE-56(N,X)2-HE-4,,SIG) 1359800200003 SAMPLE Enriched 56Fe sample. 1359800200004 Isotopic composition: 54Fe (0.03%), 56Fe (99.94%), 1359800200005 57Fe (0.03%), 58Fe (<0.02%). 1359800200006 Isotopic composition of monitor sample: 1359800200007 54Fe (96.81%), 56Fe (3.04%), 1359800200008 57Fe (0.12%), 58Fe (0.03%). 1359800200009 MONITOR (26-FE-54(N,A)24-CR-51,,SIG) 1359800200010 COMMENT Authors recommend value of 22.2+-3.8 mb (average of 1359800200011 measurements for natural Fe and 56Fe. 1359800200012 ENDBIB 10 0 1359800200013 COMMON 4 3 1359800200014 ERR-1 ERR-2 ERR-3 ERR-4 1359800200015 PER-CENT PER-CENT PER-CENT PER-CENT 1359800200016 2. 1. 2.7 12.2 1359800200017 ENDCOMMON 3 0 1359800200018 DATA 4 1 1359800200019 DATA ERR-T MONIT MONIT-ERR 1359800200020 MB MB MB MB 1359800200021 26.0 3.5 50. 2.5 1359800200022 ENDDATA 3 0 1359800200023 ENDSUBENT 22 0 1359800299999 SUBENT 13598003 19970204 00001359800300001 BIB 3 8 1359800300002 REACTION (28-NI-58(N,X)2-HE-4,,SIG) 1359800300003 SAMPLE Enriched 58Ni sample 1359800300004 Isotopic composition: 58Ni (99.83%), 60Ni (0.17%), 1359800300005 61Ni (<0.01%), 62Ni (<0.01%), 64Ni (<0.02%). 1359800300006 Isotopic composition of monitor sample: 1359800300007 58Ni (0.21%), 60Ni (99.79%), 1359800300008 61Ni (<0.05%), 62Ni (<0.05%), 64Ni (<0.05%). 1359800300009 MONITOR (28-NI-60(N,P)27-CO-60,,SIG) 1359800300010 ENDBIB 8 0 1359800300011 COMMON 4 3 1359800300012 ERR-1 ERR-2 ERR-3 ERR-4 1359800300013 PER-CENT PER-CENT PER-CENT PER-CENT 1359800300014 4. 2. 1.3 15.0 1359800300015 ENDCOMMON 3 0 1359800300016 DATA 4 1 1359800300017 DATA ERR-T MONIT MONIT-ERR 1359800300018 MB MB MB MB 1359800300019 92. 15. 104.2 3.8 1359800300020 ENDDATA 3 0 1359800300021 ENDSUBENT 20 0 1359800399999 SUBENT 13598004 19970204 00001359800400001 BIB 3 5 1359800400002 REACTION (28-NI-60(N,X)2-HE-4,,SIG) 1359800400003 SAMPLE Enriched 60Ni sample 1359800400004 Isotopic composition: 58Ni (0.21%), 60Ni (99.79%), 1359800400005 61Ni (<0.05%), 62Ni (<0.05%), 64Ni (<0.05%). 1359800400006 MONITOR (28-NI-60(N,P)27-CO-60,,SIG) 1359800400007 ENDBIB 5 0 1359800400008 COMMON 4 3 1359800400009 ERR-1 ERR-2 ERR-3 ERR-4 1359800400010 PER-CENT PER-CENT PER-CENT PER-CENT 1359800400011 2. 1. 1.3 2.6 1359800400012 ENDCOMMON 3 0 1359800400013 DATA 4 1 1359800400014 DATA ERR-T MONIT MONIT-ERR 1359800400015 MB MB MB MB 1359800400016 47.7 2.5 104.2 3.8 1359800400017 ENDDATA 3 0 1359800400018 ENDSUBENT 17 0 1359800499999 SUBENT 13598005 19970204 00001359800500001 BIB 4 8 1359800500002 REACTION (26-FE-0(N,X)2-HE-4,,SIG) 1359800500003 SAMPLE Natural iron sample 1359800500004 Isotopic composition of monitor sample: 1359800500005 54Fe (96.81%), 56Fe (3.04%), 1359800500006 57Fe (0.12%), 58Fe (0.03%). 1359800500007 MONITOR (26-FE-54(N,A)24-CR-51,,SIG) 1359800500008 COMMENT Authors recommend value of 22.2+-3.8 mb (average of 1359800500009 measurements for natural Fe and 56Fe. 1359800500010 ENDBIB 8 0 1359800500011 COMMON 4 3 1359800500012 ERR-1 ERR-2 ERR-3 ERR-4 1359800500013 PER-CENT PER-CENT PER-CENT PER-CENT 1359800500014 2. 1. 2.6 18.5 1359800500015 ENDCOMMON 3 0 1359800500016 DATA 4 1 1359800500017 DATA ERR-T MONIT MONIT-ERR 1359800500018 MB MB MB MB 1359800500019 18.5 3.6 50. 2.5 1359800500020 ENDDATA 3 0 1359800500021 ENDSUBENT 20 0 1359800599999 SUBENT 13598006 19970204 00001359800600001 BIB 3 6 1359800600002 REACTION (28-NI-0(N,X)2-HE-4,,SIG) 1359800600003 SAMPLE Natural nickel sample 1359800600004 Isotopic composition of monitor sample: 1359800600005 58Ni (0.21%), 60Ni (99.79%), 1359800600006 61Ni (<0.05%), 62Ni (<0.05%), 64Ni (<0.05%). 1359800600007 MONITOR (28-NI-60(N,P)27-CO-60,,SIG) 1359800600008 ENDBIB 6 0 1359800600009 COMMON 4 3 1359800600010 ERR-1 ERR-2 ERR-3 ERR-4 1359800600011 PER-CENT PER-CENT PER-CENT PER-CENT 1359800600012 4. 2. 1.1 12.0 1359800600013 ENDCOMMON 3 0 1359800600014 DATA 4 1 1359800600015 DATA ERR-T MONIT MONIT-ERR 1359800600016 MB MB MB MB 1359800600017 83.9 11.2 104.2 3.8 1359800600018 ENDDATA 3 0 1359800600019 ENDSUBENT 18 0 1359800699999 SUBENT 13598007 19970204 00001359800700001 BIB 3 4 1359800700002 REACTION (29-CU-0(N,X)2-HE-4,,SIG) 1359800700003 SAMPLE Natural copper sample 1359800700004 MONITOR ((MONIT1)13-AL-27(N,A)11-NA-24,,SIG) 1359800700005 ((MONIT2)26-FE-0(N,X)2-HE-4,,SIG) 1359800700006 ENDBIB 4 0 1359800700007 COMMON 4 3 1359800700008 ERR-1 ERR-2 ERR-3 ERR-4 1359800700009 PER-CENT PER-CENT PER-CENT PER-CENT 1359800700010 2. 1. 2.0 4.1 1359800700011 ENDCOMMON 3 0 1359800700012 DATA 6 1 1359800700013 DATA ERR-T MONIT1 MONIT1-ERR MONIT2 MONIT2-ERR 1359800700014 MB MB MB MB MB MB 1359800700015 21.2 1.4 89. 1.7 18.5 3.6 1359800700016 ENDDATA 3 0 1359800700017 ENDSUBENT 16 0 1359800799999 SUBENT 13598008 19970204 00001359800800001 BIB 4 9 1359800800002 REACTION (28-NI-61(N,X)2-HE-4,,SIG) 1359800800003 SAMPLE Enriched 61Ni sample 1359800800004 Isotopic composition: 58Ni (3.45%), 60Ni (6.12%), 1359800800005 61Ni (88.84%), 62Ni (1.40%), 64Ni (0.20%). 1359800800006 Isotopic composition of monitor sample: 1359800800007 58Ni (0.21%), 60Ni (99.79%), 1359800800008 61Ni (<0.05%), 62Ni (<0.05%), 64Ni (<0.05%). 1359800800009 MONITOR (28-NI-60(N,P)27-CO-60,,SIG) 1359800800010 HISTORY (970204C) 1359800800011 ENDBIB 9 0 1359800800012 COMMON 4 3 1359800800013 ERR-1 ERR-2 ERR-3 ERR-4 1359800800014 PER-CENT PER-CENT PER-CENT PER-CENT 1359800800015 2. 1. 1.3 6.1 1359800800016 ENDCOMMON 3 0 1359800800017 DATA 4 1 1359800800018 DATA ERR-T MONIT MONIT-ERR 1359800800019 MB MB MB MB 1359800800020 27.6 2.1 104.2 3.8 1359800800021 ENDDATA 3 0 1359800800022 ENDSUBENT 21 0 1359800899999 ENDENTRY 8 0 1359899999999