ENTRY 22680 20200119 22852268000000001 SUBENT 22680001 20200119 22852268000100001 BIB 20 194 2268000100002 TITLE Neutron activation cross sections on lead isotopes 2268000100003 AUTHOR (V.Semkova, P.Reimer, T.Altzitzoglou, A.J.M.Plompen, 2268000100004 C.Quetel, S.Sudar, J.Vogl, A.J.Koning, S.M.Qaim, 2268000100005 D.L.Smith, F.Cserpak, V.Avrigeanu) 2268000100006 INSTITUTE (2ZZZGEL) Plompen, Email: Arjan.Plompen@ec.europa.eu; 2268000100007 Semkova, Reimer, Altzitzoglou, Quetel, Sudar, 2268000100008 J.Vogl 2268000100009 (2NEDNRG) Koning 2268000100010 (2GERJUL) Reimer, Qaim 2268000100011 (1USAANL) Smith 2268000100012 (3HUNDEB) Cserpak, Sudar 2268000100013 (3RUMBUC) Avrigeanu 2268000100014 REFERENCE (J,PR/C,80,024610,2009) Main reference, final 2268000100015 data tables are given 2268000100016 (R,EUR-20820-EN,2003) Detailed data are given for Ni, 2268000100017 Co, Pb, Zr. Entry 22822 2268000100018 (R,JUEL-3980,2002) P. Reimer, fast neutron-induced 2268000100019 reaction leading to activation products: selected 2268000100020 cases relevant to the development of low activation 2268000100021 materials transmutation and hazard assessment of 2268000100022 nuclear wastes. Thesis. 2268000100023 (W,Plompen,20010121) Preliminary numerical data 2268000100024 provided by A.J.M.Plompen and V.Semkova. 2268000100025 REL-REF (M,,P.Reimer+,J,PR/C,71,044617,2005) 2268000100026 (M,,V.Semkova+,J,NP/A,730,255,2004) 2268000100027 (M,,P.Reimer+,J,NP/A,705,265,2002) 2268000100028 (M,,P.Reimer+,J,PR/C,65,014604,2002) 2268000100029 (M,,A.Fessler+,J,NSE,134,171,2000) 2268000100030 (I,,A.Fessler+,J,RCA,84,1,1999) 2268000100031 FACILITY (VDG,2ZZZGEL) 7-MV Van de Graaff accelerator, Neutron 2268000100032 Physics Unit, Institute For Reference Materials and 2268000100033 Measurements, Geel, Belgium. 2268000100034 INC-SOURCE (D-T) (1-H-3(d,N)2-He-4). Deuterons incident on a 2268000100035 solid titanium-tritium target (approximately 2 mg/cm2 2268000100036 thick) on a silver backing (0.5 mm thick), Q-value = 2268000100037 17.59 MeV. This reaction generated the primary 2268000100038 neutrons with energies in the range 14 to 20.5 MeV. 2268000100039 Samples were placed at angles from 0 to 75 degrees. 2268000100040 The energy scale uncertainty is 5 keV. Deuteron 2268000100041 energies of 1, 2, 3, and 4 MeV were used. 2268000100042 INC-SPECT .The neutron spectra from this source reaction were 2268000100043 quasimonoenergetic. The effective spread in the 2268000100044 neutron energy of the primary group was deduced from 2268000100045 the target thickness, kinematics, and sample geometry.2268000100046 The quoted neutron energy resolution is the root-mean-2268000100047 square (EN-RSL) of the distribution of primary 2268000100048 neutrons. 2268000100049 SAMPLE .Both isotopically enriched and natural abundance 2268000100050 materials were employed in the present measurements. 2268000100051 Aluminum metal samples with diameter equal to the 2268000100052 various lead samples and thickness of 50 - 300 micro- 2268000100053 meters were used for fluence monitoring purposes. 2268000100054 The lead samples were sandwiched in layers between 2268000100055 aluminum monitor foils for the cross section determi- 2268000100056 nations. Also, auxiliary aluminum, iron, nickel, 2268000100057 indium, and niobium samples were used at various times2268000100058 during these experiments, either to serve as secondary2268000100059 standards for neutron fluence determination or for 2268000100060 the purpose of establishing corrections for low-energy2268000100061 neutrons via the method of spectral indexing. 2268000100062 METHOD (ACTIV) Cross sections were measured using the neutron 2268000100063 activation method. Packets containing various lead 2268000100064 samples and monitor foils were irradiated in well- 2268000100065 defined geometries near the target of the accelerator.2268000100066 (GSPEC) All sample activities were measured by obser-2268000100067 ving radioactive decay gamma rays from each of the 2268000100068 irradiated samples. They were measured using shielded,2268000100069 high-purity germanium (HPGe) detectors and gamma-ray 2268000100070 spectroscopy techniques. 2268000100071 (STTA) Stack target irradiation. Stacks from two to 2268000100072 twelve intermittent lead-main and secondary monitor 2268000100073 samples were employed 2268000100074 DETECTOR (HPGE) High purity germanium detectors were used. 2268000100075 The photon detectors were calibrated using standard 2268000100076 gamma-ray calibration sources acquired from radiation 2268000100077 metrology laboratories at PTB (Braunschweig, Germany) 2268000100078 and Damri (Gif-sur-Yvette, France). 2268000100079 (LONGC,BF3) Boron trifluoride detector in a long- 2268000100080 counter configuration. Long counter for relative 2268000100081 measurements. Current integrator for relative 2268000100082 measurements. 2268000100083 ANALYSIS .The various lead reaction cross sections were usually 2268000100084 determined from measured cross-section ratios relative2268000100085 to the Al-27(N,a)Na-24 standard. Cross-section ratios 2268000100086 were derived in each case from the experimental data 2268000100087 following the application of various corrections. 2268000100088 MONITOR All measurements involving secondary standards were 2268000100089 ultimately referenced to the primary standard. 2268000100090 All relative measurements were ultimately normalized 2268000100091 to the primary standard. 2268000100092 Monitor cross-section values at arbitrary neutron 2268000100093 energies were derived from tabulated values by means 2268000100094 of linear interpolation. 2268000100095 (13-AL-27(N,A)11-NA-24,,SIG) Primary standard 2268000100096 used directly or indirectly for all the cross section 2268000100097 determinations. 2268000100098 (13-AL-27(N,P)12-MG-27,,SIG) Secondary standard and 2268000100099 spectral index component. 2268000100100 (26-FE-56(N,P)25-MN-56,,SIG) Secondary standard and 2268000100101 spectral index component. 2268000100102 (41-NB-93(N,2N)41-NB-92-M,,SIG) Secondary standard and2268000100103 spectral index component. 2268000100104 (49-IN-115(N,INL)49-IN-115-M,,SIG) Spectral index 2268000100105 component. This reaction is very sensitive to the 2268000100106 lowest-energy background neutrons. 2268000100107 (28-NI-58(N,P)27-CO-58,,SIG) Secondary standard and 2268000100108 spectral index component. 2268000100109 MONIT-REF (,M.Wagner+,B,PH-DAT,13,(5),34,1990) Value for 2268000100110 the 1-st monitor Al-27(N,a)Na-24 (1) 2268000100111 (,V.Mclane,3,ENDF/B-VI,,1998) Evaluated nuclear data 2268000100112 file, section B, version VI (ENDF/B-VI), national 2268000100113 nuclear data center, BNL(1998), available online at 2268000100114 www.nndc.bnl.gov/nndc/endf. (2) 2268000100115 (,C.M.Baglin,J,NDS,91,423,2000) Nucl.Data sheets 2268000100116 91, 423 (2000). (3) 2268000100117 (,M.Wagner+,R,INDC(AUS)-14,1991) M.Wagner, 2268000100118 report INDC(AUS)-D14, Vienna (1991). (4) 2268000100119 (,H.Conde+,R,INDC(SEC)-101,1992) (5) 2268000100120 (,A.B.Smith+,R,ANL-NDM-115,1990) (6) 2268000100121 DECAY-MON (11-NA-24,14.997HR,DG,1368.6,0.99994) MONIT-REF(1): 2268000100122 ERR-HL=0.012hr, ERR-IDD=0.002%, 2268000100123 (12-MG-27,9.458MIN,DG,843.8,0.871) MONIT-REF(2): 2268000100124 ERR-HL=0.012min, ERR-IDD=.04% 2268000100125 (25-MN-56,2.5789HR,DG,846.8,0.989) MONIT-REF(2): 2268000100126 ERR-HL=0.0001hr, ERR-IDD=0.3% 2268000100127 (41-NB-92-M,10.15D,DG,934.4,0.9907) MONIT-REF(3-5): 2268000100128 ERR-HL=0.02d, ERR-IDD=0.04%. 2268000100129 (49-IN-115-M,4.486HR,DG,336.2,0.458) MONIT-REF(6): 2268000100130 ERR-HL=0.004hr, ERR-IDD=2.2%. 2268000100131 (27-CO-58-G,70.86D,DG,810.8,0.9945) MONIT-REF(2): 2268000100132 ERR-HL=0.07d, ERR-IDD=0.01%. 2268000100133 ADD-RES (THEO) TALYS, TALYS-mu and STAPRE codes were used 2268000100134 for auxiliary cross section calculations 2268000100135 CORRECTION .Most of these correction procedures were standard. 2268000100136 The neutron scattering corrections were derived by 2268000100137 the Monte-Carlo method using the computer code 2268000100138 MCNP4C. These corrections were largest for the D-T 2268000100139 neutron source measurements at 4-MeV deuteron energy. 2268000100140 There, the correction was 2268000100141 11% for the In-115(N,INL)In-115-M reaction, 2268000100142 7% for the Ni-58(N,P)Co-58 reaction, and 2268000100143 less than 2% for all the remaining monitor reactions. 2268000100144 The raw experimental data were corrected for the 2268000100145 following effects: 2268000100146 . Gamma-ray detection efficiency. 2268000100147 . Gamma-ray branching factors. 2268000100148 . Gamma-ray coincidence summing effects. 2268000100149 . Geometric effects. 2268000100150 . Gamma-ray absorption. 2268000100151 . Absorption and scattering of neutrons. 2268000100152 . Low-energy neutrons from the target. 2268000100153 . Decay of product nuclei. 2268000100154 . Radioactivity build-up (for cyclic activation) 2268000100155 . Fluctuations in neutron flux during the 2268000100156 irradiation period. 2268000100157 . Isotopic abundances. 2268000100158 . Sample chemical composition and impurities. 2268000100159 *The low-energy neutron corrections were deduced using 2268000100160 a representation of the neutron spectrum, evaluated 2268000100161 cross sections for the various spectral-index monitor 2268000100162 reactions, estimates of the various lead reaction 2268000100163 cross-section shapes. 2268000100164 ERR-ANALYS (DATA-ERR) Standard errors for the cross sections were 2268000100165 deduced by combining partial errors from various 2268000100166 sources in quadrature. Error sources considered were:2268000100167 . Statistical counting errors. 2268000100168 . Uncertainty in detector efficiencies. 2268000100169 . Uncertainty in decay branching factors. 2268000100170 . Uncertainty in coincidence summing corrections. 2268000100171 . Geometric uncertainty. 2268000100172 . Uncertainty in the absorption of gamma rays. 2268000100173 . Uncertainty in the absorption and scattering 2268000100174 of neutrons. 2268000100175 . Uncertainty in low-energy neutron corrections. 2268000100176 . Uncertainty in primary and secondary neutron 2268000100177 fluence standards. 2268000100178 . Uncertainty in decay half lives. 2268000100179 (ERR-HL) Half-life error 2268000100180 (ERR-IDD) Intensity error 2268000100181 STATUS .Data from PR/C,-vol.80, p.024610 2268000100182 preliminary data provided in tabular form by private 2268000100183 communication, A.J.M.Plompen, 2002-7-04. 2268000100184 HISTORY (20020121C) Raw entry obtained from A.J.M. Plompen. 2268000100185 Corrected by S.M. 2268000100186 (20091019A) Final data from PR/C,80,024610 introduced 2268000100187 for new measured instead of preliminary. 2268000100188 BIB Information corrected and updated. 2268000100189 (20100808U) Minor corrections in ENTRY 22680 2268000100190 (20120120A) NDS(VZ): MONIT-REF: ND/B->NDS 2268000100191 (20140404A) SD: Subent 009 deleted according to 2268000100192 Dr.V.Semkova remark (dupl. with 22818.018). Data 2268000100193 in Subents 3,4 revise based on Tables of the PR/C,80. 2268000100194 (20190327U) SD: Year in PR/C,65 (see REL-REF) corrected2268000100195 (20200119U) SD: Small correction in Subents 006-008,0102268000100196 ENDBIB 194 0 2268000100197 NOCOMMON 0 0 2268000100198 ENDSUBENT 197 0 2268000199999 SUBENT 22680002 20100715 22192268000200001 BIB 6 19 2268000200002 REACTION (82-PB-208(N,P)81-TL-208,,SIG) 2268000200003 DECAY-DATA (81-TL-208,3.053MIN,DG,583.2,0.650) 2268000200004 SAMPLE .Natural lead samples and the cyclic activation method.2268000200005 Metal disks 13 mm diameter. 2268000200006 Isotopic composition measured in this work: 2268000200007 (82-PB-204,NAT=0.01284) (1.284+-0.020)% 2268000200008 (82-PB-206,NAT=0.2712) (27.12+-0.26)% 2268000200009 (82-PB-207,NAT=0.2049) (20.49+-0.17)% 2268000200010 (62-PB-208,NAT=0.5111) (51.11+-0.24)%. 2268000200011 CORRECTION .Corrected of the measured activity for contributions 2268000200012 from preceding cycles since both the irradiation 2268000200013 and cooling times for each cycle were significantly 2268000200014 smaller than the half-life for the Tl-208 activity. 2268000200015 STATUS (TABLE) Table IV from PR/C,80,024610, lower panel 2268000200016 Supersedes 22822.010 with deletion of data 2268000200017 HISTORY (20040119U) Correlation established 2268000200018 (20091115A) Bib section corrected, data taken from 2268000200019 main reference 2268000200020 (20100715A) Correlation skipped. BIB info corrected 2268000200021 ENDBIB 19 0 2268000200022 COMMON 2 3 2268000200023 ERR-HL ERR-IDD 2268000200024 MIN NO-DIM 2268000200025 0.004 0.003 2268000200026 ENDCOMMON 3 0 2268000200027 DATA 4 6 2268000200028 EN EN-RSL-FW DATA DATA-ERR 2268000200029 MEV MEV MB MB 2268000200030 14.81 0.17 0.95 0.22 2268000200031 16.3 0.2 2.1 0.3 2268000200032 17.95 0.12 4.2 0.4 2268000200033 19.05 0.09 6.1 0.4 2268000200034 19.3 0.09 6.1 0.5 2268000200035 20.5 0.08 8.1 0.5 2268000200036 ENDDATA 8 0 2268000200037 ENDSUBENT 36 0 2268000299999 SUBENT 22680003 20140404 22382268000300001 BIB 5 12 2268000300002 REACTION (82-PB-206(N,A)80-HG-203,,SIG) 2268000300003 DECAY-DATA (80-HG-203,46.612D,DG,279.1967,0.8146) 2268000300004 SAMPLE .Natural and enriched lead samples. 2268000300005 STATUS (TABLE) Table from A.Plompen, 2002-07-04. 2268000300006 The same in Tbl. IV PR/C,80,024610 2268000300007 (SPSDD,22680010) final results 2268000300008 HISTORY (20040119U) Correlation with 22680010 established 2268000300009 (20091019A) Bib section corrected: SAMPLE given 2268000300010 instead of COMMENT, STATUS corrected 2268000300011 (20091115U) Decay data errors given. BIB info corrected2268000300012 (20100808U) Correlation to SAN 010 specified. 2268000300013 (20140404U) SD: STATUS was changed (COREL -> SPSDD) 2268000300014 ENDBIB 12 0 2268000300015 COMMON 2 3 2268000300016 ERR-HL ERR-IDD 2268000300017 D NO-DIM 2268000300018 0.012 0.0005 2268000300019 ENDCOMMON 3 0 2268000300020 DATA 4 6 2268000300021 EN EN-RSL-FW DATA DATA-ERR 2268000300022 MEV MEV MB MB 2268000300023 16.1 0.26 0.86 0.09 2268000300024 17.2 0.2 1.94 0.15 2268000300025 18.7 0.2 2.6 0.2 2268000300026 19.2 0.173 3.33 0.25 2268000300027 20.0 0.11 3.89 0.35 2268000300028 20.5 0.139 3.81 0.31 2268000300029 ENDDATA 8 0 2268000300030 ENDSUBENT 29 0 2268000399999 SUBENT 22680004 20140404 22382268000400001 BIB 6 13 2268000400002 REACTION (82-PB-206(N,3N)82-PB-204-M,,SIG) 2268000400003 DECAY-DATA (82-PB-204-M,67.2MIN,DG,899.15,0.99170) 2268000400004 ANALYSIS .These cross sections were measured using both natural 2268000400005 lead samples and samples enriched in Pb-204 and 2268000400006 Pb-206, respectively. Use of these isotopically 2268000400007 enriched samples enabled contributions from the 2268000400008 reaction Pb-204(n,inl) and Pb-206(n,3n) to be 2268000400009 distinguished in the experiment. 2268000400010 SAMPLE .Natural and enriched lead samples. 2268000400011 STATUS (TABLE) Table from A.Plompen, 2002-7-04. 2268000400012 The same in Tbl. IV PR/C,80,024610 2268000400013 (SPSDD,22680011) Final results 2268000400014 HISTORY (20140404A) SD: STATUS was changed (COREL -> SPSDD) 2268000400015 ENDBIB 13 0 2268000400016 COMMON 2 3 2268000400017 ERR-HL ERR-IDD 2268000400018 MIN NO-DIM 2268000400019 0.3 0.0002 2268000400020 ENDCOMMON 3 0 2268000400021 DATA 4 3 2268000400022 EN EN-RSL-FW DATA DATA-ERR 2268000400023 MEV MEV MB MB 2268000400024 18.05 0.123 4.22 0.32 2268000400025 19.43 0.09 92. 6. 2268000400026 20.68 0.07 292. 31. 2268000400027 ENDDATA 5 0 2268000400028 ENDSUBENT 27 0 2268000499999 SUBENT 22680005 20100715 22192268000500001 BIB 6 20 2268000500002 REACTION (82-PB-204(N,INL)82-PB-204-M,,SIG) 2268000500003 DECAY-DATA (82-PB-204-M,67.2MIN,DG,899.2,0.9917) 2268000500004 SAMPLE .For the Pb-204(n,inl)Pb-204m cross-section measurement2268000500005 a 0.2193 g sample of metallic lead enriched to 48.9% 2268000500006 in Pb-204 was used. The sample was pressed into a 2268000500007 pellet 6 mm in dia. By 0.8 mm thick. 2268000500008 (82-PB-204,ENR=0.487) 2268000500009 (82-PB-206,ENR=0.062) 2268000500010 (82-PB-207,ENR=0.072) 2268000500011 (82-PB-208,ENR=0.379) 2268000500012 COMMENT .These cross sections were measured using both natural 2268000500013 lead samples and samples enriched in Pb-204 and Pb-206,2268000500014 respectively. Use of these isotopically enriched 2268000500015 samples enabled contributions from the reactions 2268000500016 Pb-204(n,inl) and Pb-206(n,3n) to be distinguished 2268000500017 in the experiment. 2268000500018 STATUS (TABLE) Table V from PR/C,80,024610, 1st panel 2268000500019 Supersedes 22822.008 with deletion of data 2268000500020 HISTORY (20040119U) Correlation established 2268000500021 (20100715A) Supersedes 22822.008, Correlation skipped 2268000500022 ENDBIB 20 0 2268000500023 COMMON 2 3 2268000500024 ERR-HL ERR-IDD 2268000500025 MIN NO-DIM 2268000500026 0.3 0.0002 2268000500027 ENDCOMMON 3 0 2268000500028 DATA 4 6 2268000500029 EN EN-RSL-FW DATA DATA-ERR 2268000500030 MEV MEV MB MB 2268000500031 3.45 0.03 43. 3. 2268000500032 14.81 0.17 62. 4. 2268000500033 16.26 0.20 51. 3. 2268000500034 17.95 0.12 42. 5. 2268000500035 19.39 0.09 36. 3. 2268000500036 20.53 0.08 27. 5. 2268000500037 ENDDATA 8 0 2268000500038 ENDSUBENT 37 0 2268000599999 SUBENT 22680006 20200119 22852268000600001 BIB 6 20 2268000600002 REACTION (82-PB-204(N,2N)82-PB-203-M1+M2,,SIG) 2268000600003 DECAY-DATA (82-PB-203-M1,6.21SEC,DG,825.3,0.716) 2268000600004 (82-PB-203-M2,0.48SEC,DG,2948.) 2268000600005 SAMPLE (82-PB-204,NAT=0.01284) (1.284+-0.020)% 2268000600006 Natural lead rod from Advent Research Materials 2268000600007 COMMENT .These cross sections were measured using the cyclic 2268000600008 activation method and a fast rabbit sample transport 2268000600009 system. Elemental lead samples were used. This isomer 2268000600010 decays entirely by an isomeric transition to the 2268000600011 ground state of Pb-203. The corresponding emitted 2268000600012 gamma ray was observed. The activity was observed 2268000600013 after the decay of the second isomer with half life 2268000600014 of 0.48 s. 2268000600015 .ERR-HL and ERR-IDD given for M1 meta state 2268000600016 STATUS (TABLE) Table V of PR/C,80,024610, 3d panel 2268000600017 Supersedes 22822.009 with deletion of data 2268000600018 HISTORY (20040119U) Correlation to 22822009 established 2268000600019 (20091115U) Source of data given under STATUS 2268000600020 (20100715A) Supersedes 22822.009. Correlation skipped 2268000600021 (20200119U) SD: SAMPLE updated. 2268000600022 ENDBIB 20 0 2268000600023 COMMON 2 3 2268000600024 ERR-HL ERR-IDD 2268000600025 SEC NO-DIM 2268000600026 0.08 0.007 2268000600027 ENDCOMMON 3 0 2268000600028 DATA 4 4 2268000600029 EN EN-RSL-FW DATA DATA-ERR 2268000600030 MEV MEV MB MB 2268000600031 16.26 0.20 1039. 72. 2268000600032 17.95 0.12 1030. 70. 2268000600033 19.11 0.09 1032. 82. 2268000600034 20.31 0.08 828. 73. 2268000600035 ENDDATA 6 0 2268000600036 ENDSUBENT 35 0 2268000699999 SUBENT 22680007 20200119 22852268000700001 BIB 6 18 2268000700002 REACTION (82-PB-204(N,2N)82-PB-203,,SIG) 2268000700003 DECAY-DATA (82-PB-203-G,51.92HR,DG,279.1967,0.8080) 2268000700004 (82-PB-203-M1,6.21SEC,DG,825.2,0.714) 2268000700005 (82-PB-203-M2,0.48SEC,DG,2948.) 2268000700006 SAMPLE (82-PB-204,NAT=0.01284) (1.284+-0.020)% 2268000700007 Natural lead rod from Advent Research Materials 2268000700008 COMMENT .These cross sections were obtained by first allowing 2268000700009 for all nuclei residing in the 6.3-sec isomeric state 2268000700010 at 825.20-keV excitation in Pb-203 to decay to the 2268000700011 ground state. The cross section values refer to the 2268000700012 total (N,2N) cross section for formation of the 2268000700013 isomer plus the ground state of Pb-203. 2268000700014 .ERR-HL and ERR-IDD given for the ground state 2268000700015 transition, Nuclear Wallet Card 2268000700016 STATUS (TABLE) Table V of PR/C,80,024610, 2nd panel 2268000700017 HISTORY (20100714U) DECAY-DATA and figures in DATA section 2268000700018 changed 2268000700019 (20200119U) SD: SAMPLE updated. 2268000700020 ENDBIB 18 0 2268000700021 COMMON 2 3 2268000700022 ERR-HL ERR-IDD 2268000700023 D NO-DIM 2268000700024 0.009 0.0001 2268000700025 ENDCOMMON 3 0 2268000700026 DATA 4 9 2268000700027 EN EN-RSL-FW DATA DATA-ERR 2268000700028 MEV MEV MB MB 2268000700029 14.81 0.17 2146. 133. 2268000700030 15.55 0.25 2163. 109. 2268000700031 16.26 0.20 2154. 114. 2268000700032 18.0 0.1 2007. 185. 2268000700033 18.7 0.2 1923. 147. 2268000700034 19.2 0.2 1852. 132. 2268000700035 19.4 0.1 1827. 138. 2268000700036 20.5 0.1 1461. 140. 2268000700037 20.5 0.1 1544. 108. 2268000700038 ENDDATA 11 0 2268000700039 ENDSUBENT 38 0 2268000799999 SUBENT 22680008 20200119 22852268000800001 BIB 6 12 2268000800002 REACTION (82-PB-204(N,3N)82-PB-202-M,,SIG) 2268000800003 DECAY-DATA (82-PB-202-M,3.53HR,DG,960.70,0.92) 2268000800004 SAMPLE (82-PB-204,NAT=0.01284) (1.284+-0.020)% 2268000800005 Natural lead rod from Advent Research Materials 2268000800006 ANALYSIS .This reaction cross section was determined by 2268000800007 measuring gamma rays associated with the decay of the 2268000800008 isomeric level at 2169.84 keV by isomeric transitions 2268000800009 to the ground state. Some of the decays of this state 2268000800010 occurred by electron capture but the gamma rays 2268000800011 associated with this process were not measured. 2268000800012 STATUS (TABLE) Table V of PR/C,80,024610, 4th panel 2268000800013 HISTORY (20200119U) SD: SAMPLE updated. 2268000800014 ENDBIB 12 0 2268000800015 COMMON 2 3 2268000800016 ERR-HL ERR-IDD 2268000800017 HR NO-DIM 2268000800018 0.01 0.005 2268000800019 ENDCOMMON 3 0 2268000800020 DATA 4 5 2268000800021 EN EN-RSL-FW DATA DATA-ERR 2268000800022 MEV MEV MB MB 2268000800023 18.0 0.1 0.17 0.07 2268000800024 18.7 0.2 3.8 0.5 2268000800025 19.2 0.2 13.4 2.2 2268000800026 19.4 0.1 18.3 2.2 2268000800027 20.5 0.1 82. 14. 2268000800028 ENDDATA 7 0 2268000800029 ENDSUBENT 28 0 2268000899999 NOSUBENT 22680009 20140404 22382268000900001 SUBENT 22680010 20200119 22852268001000001 BIB 5 8 2268001000002 REACTION (82-PB-206(N,A)80-HG-203,,SIG) 2268001000003 DECAY-DATA (80-HG-203,46.594D,DG,279.2,0.8156) 2268001000004 SAMPLE (82-PB-206,NAT=0.2712) (27.12+-0.26)% 2268001000005 Natural lead rod from Advent Research Materials 2268001000006 STATUS (TABLE) Table IV from PR/C,80,024610, upper panel 2268001000007 HISTORY (20091115C) S.M. 2268001000008 (20100808U) Correlation explained 2268001000009 (20200119U) SD: SAMPLE updated. 2268001000010 ENDBIB 8 0 2268001000011 COMMON 2 3 2268001000012 ERR-HL ERR-IDD 2268001000013 D NO-DIM 2268001000014 0.012 0.0005 2268001000015 ENDCOMMON 3 0 2268001000016 DATA 4 6 2268001000017 EN EN-RSL-FW DATA DATA-ERR 2268001000018 MEV MEV MB MB 2268001000019 16.1 0.2 1.12 0.13 2268001000020 17.2 0.1 1.9 0.2 2268001000021 18.7 0.2 2.6 0.2 2268001000022 19.2 0.2 3.3 0.3 2268001000023 20.0 0.1 3.9 0.4 2268001000024 20.5 0.1 3.7 0.4 2268001000025 ENDDATA 8 0 2268001000026 ENDSUBENT 25 0 2268001099999 SUBENT 22680011 20100808 22242268001100001 BIB 6 15 2268001100002 REACTION (82-PB-206(N,3N)82-PB-204-M,,SIG) 2268001100003 DECAY-DATA (82-PB-204-M,67.2MIN,DG,899.2,0.9917) 2268001100004 SAMPLE .Pb-206 enriched sample. Metal disks 13 mm diameter. 2268001100005 Isotopic composition of Pb-206 enriched sample: 2268001100006 (82-PB-204,ENR=0.) 2268001100007 (82-PB-206,ENR=0.9400) 2268001100008 (82-PB-207,ENR=0.0404) 2268001100009 (82-PB-208,ENR=0.0196) 2268001100010 ANALYSIS .No consideration was made of the Pb-204(N,inl)Pb204-m 2268001100011 and Pb-206(N,3N)Pb-204-m to be distinguished in the 2268001100012 experiment due to the absence of Pb204 nuclei in the 2268001100013 sample. 2268001100014 STATUS (TABLE) Table V of PR/C,80,024610, 5th panel 2268001100015 (COREL,22680004) Correlated with natural sample 2268001100016 HISTORY (20100808U) Correlation explained 2268001100017 ENDBIB 15 0 2268001100018 COMMON 2 3 2268001100019 ERR-HL ERR-IDD 2268001100020 MIN NO-DIM 2268001100021 0.3 0.0002 2268001100022 ENDCOMMON 3 0 2268001100023 DATA 4 3 2268001100024 EN EN-RSL-FW DATA DATA-ERR 2268001100025 MEV MEV MB MB 2268001100026 18.1 0.1 4.2 0.3 2268001100027 19.4 0.1 92.1 6.4 2268001100028 20.5 0.1 292. 31. 2268001100029 ENDDATA 5 0 2268001100030 ENDSUBENT 29 0 2268001199999 ENDENTRY 11 0 2268099999999