ENTRY 21890 20161103 22552189000000001 SUBENT 21890001 20161103 22552189000100001 BIB 16 59 2189000100002 INSTITUTE (2GERKFK) 2189000100003 REFERENCE (J,NSE,87,48,1984) Capture widths, MACS in Tables. 2189000100004 (R,KFK-3582,1,198309) 2189000100005 Radiative widths of s-wave resonances, MACS 2189000100006 ((P,NEANDC(E)-242U,4,198306)= 2189000100007 (P,INDC(GER)-25/L,4,1983)) Prelim. data for gamma-width2189000100008 AUTHOR (K.Wisshak,F.Kaeppeler,R.L.Macklin,G.Reffo,F.Fabbri) 2189000100009 TITLE Neutron capture in s-wave resonances of nickel-64 2189000100010 REL-REF (M,21882001,K.Wisshak+,J,NSE,86,168,1984) 2189000100011 (M,21666001,K.Wisshak+,J,NSE,77,58,1981) 2189000100012 FACILITY (VDG,2GERKFK) 3 MV accelerator, pulsed beam, 2189000100013 frequency 1 MHz 2189000100014 INC-SOURCE (P-LI7)Proton energy just above reaction threshold 2189000100015 giving a collimated neutron beam. 2189000100016 SAMPLE .Isotopically enriched: Ni-64 - 97.92 %, Ni-58 - 0.92%,2189000100017 Ni-60 - 0.23%, Ni-61 - 0.05%, Ni-62 - 0.38%. 2189000100018 Thickness 0.46 mm ( 3.034E-3 at/b), squares 26*26 mm, 2189000100019 weight 2.176 g 2189000100020 .Thickness of the gold samples- 0.20(1.268E-3 at/b) and2189000100021 0.40 mm (2.440E-3 at/b), weight 2.804g and 5.394g, 2189000100022 squares 26*26 mm . 2189000100023 METHOD (TOF) Neutron flight path 6 - 8 cm, distance sample - 2189000100024 detector about 16 cm. 2189000100025 .Empty sample frame for background subtraction. 2189000100026 Parameters for three runs: 2189000100027 I II III 2189000100028 Sample 1 64Ni 64Ni 64Ni 2189000100029 Sample 2 Au thickness,mm 0.4 0.2mm 0.2mm 2189000100030 Flight path,mm 80.4 61.2 60.1 2189000100031 Neutron energy range,keV 10-60 15-55 10-60 2189000100032 Measuring time per sample, hr 43.5 34.2 34.1 2189000100033 DETECTOR (MOXR) 3 Moxon-Rae detectors with graphite, bismuth - 2189000100034 graphite and pure bismuth converters. 2189000100035 (GLASD) Two Li-6 glass detectors : 2189000100036 -located at 0 deg relative to the beam axis to measure2189000100037 incident neutron TOF spectrum; 2189000100038 - located at 20 deg - to measure pulse height spectrum2189000100039 MONITOR (79-AU-197(N,G)79-AU-198,,SIG)ENDF/B-V gold cross 2189000100040 sections used for normalization. 2189000100041 MONIT-REF (,,3,ENDF/B-V,,1979) 2189000100042 PART-DET (G) Gamma rays. 2189000100043 HISTORY (19831107C) 2189000100044 (19840202E) 2189000100045 (20161103A) M.M. Ref. J,NSE,87,48,1984 was added. 2189000100046 BIB information was updated. 2189000100047 Upper -> lower case correction. 2189000100048 Dates were corrected for 4-digits year. 2189000100049 Subents 003-006 were added . 2189000100050 CORRECTION .For 2189000100051 -Different neutron fluence per sample using LI-6 glass2189000100052 detectors. 2189000100053 -Constant background. 2189000100054 -Background from scattered neutrons. 2189000100055 -Multiple scattering and self-shielding 2189000100056 in the gold samples. 2189000100057 -Self-absorption in the gold sample. 2189000100058 -Detector efficiency 2189000100059 ADD-RES Level scheme for compound nucleus Ni-65 - Table X 2189000100060 of R,KFK-3582,1,1983 2189000100061 ENDBIB 59 0 2189000100062 NOCOMMON 0 0 2189000100063 ENDSUBENT 62 0 2189000199999 SUBENT 21890002 20161103 22552189000200001 BIB 8 73 2189000200002 REACTION (28-NI-64(N,G),,WID) 2189000200003 Average value for three detectors and three runs. 2189000200004 ANALYSIS .Capture widths of the s-wave resonances were deduced 2189000200005 with the FANAC code of Froehner,(R,KFK-2145); 2189000200006 fixed 64Ni parameters are in Table III of ref. 2189000200007 R,KFK-3582,1983 . 2189000200008 .Procedure was described in (R,KFK-3516,1,198307) 2189000200009 and (J,NSE,77,58,198101) . 2189000200010 ASSUMED (ASSUM1,28-NI-64(N,EL),,STF) s-wave strength function 2189000200011 (ASSUM2,28-NI-64(N,EL)28-NI-64,,RAD) s-wave radius 2189000200012 (ASSUM3,28-NI-64(N,EL),,WID) s-wave neutron width 2189000200013 p-wave radius - 5.4 Fm. 2189000200014 p-wave resonances: 2189000200015 Eres,keV g Gn,eV Ggamma,eV g*Gn*Ggamma/G 2189000200016 25.8 1 3 0.140 0.134 2189000200017 27.4 2 3 0.018 0.035 2189000200018 31.9 1 3 0.739 0.593 2189000200019 39.4 2 1 0.160 0.276 2189000200020 45.8 1 3 0.108 0.104 2189000200021 46.7 2 1 0.064 0.121 2189000200022 60.1 2 3 0.094 0.183 2189000200023 62.7+62.8 1 3 1.140 0.820 2189000200024 REL-REF (N,,F.H.Froener,R,KFK-2145,1977) FANAC code 2189000200025 (M,21882001,K.Wisshak+,R,KFK-3516,1,1983) 2189000200026 CORRECTION -Detector efficiency. 2189000200027 ERR-ANALYS (ERR-S) Statistical Uncertainty. 2189000200028 (ERR-SYS) Total systematic uncertainty from : 2189000200029 13.9 keV resonance 33.8 keV resonance 2189000200030 Run I II III I II III 2189000200031 5.9 5.6 5.7 6.4 6.0 6.1 2189000200032 (ERR-1,0.6,0.8) 2189000200033 Transformation to equal flight paths for 64Ni 2189000200034 0.6 0.8 0.8 0.6 0.8 0.8 2189000200035 (ERR-2,2.3,3.5) Constant background for 64Ni 2189000200036 3.5 2.7 2.9 3.4 2.3 2.5 2189000200037 (ERR-3) Background from scattered neutrons for 64Ni 2189000200038 2.1 2.1 2.1 - - - 2189000200039 (ERR-4,0.6,0.8) 2189000200040 Transformation to equal flight paths for Au 2189000200041 0.6 0.8 0.8 0.6 0.8 0.8 2189000200042 (ERR-5) Constant background for Au 2189000200043 0.2 0.2 0.2 0.1 0.1 0.1 2189000200044 (ERR-6) Multiple scattering for Au 2189000200045 0.7 0.7 0.7 0.7 0.7 0.7 2189000200046 (ERR-7) Capture cross sections for gold. 2189000200047 2.5 2.5 2.5 2.5 2.5 2.5 2189000200048 (ERR-8) Neutron beam intensity. 2189000200049 0.3 0.3 0.3 0.3 0.3 0.3 2189000200050 (ERR-9) Gamma-ray self-absorption. 2189000200051 0.5 0.5 0.5 0.5 0.5 0.5 2189000200052 (ERR-10) FANAC calculation. 2189000200053 2.0 2.0 2.0 2.0 2.0 2.0 2189000200054 (ERR-11) Energy scale. 2189000200055 1.0 1.0 1.0 2.5 2.5 2.5 2189000200056 (ERR-12) Subtraction of p-waves 2189000200057 - - - 1.7 1.7 1.7 2189000200058 (ERR-13) Isotopic impurities. 2189000200059 0.6 0.6 0.6 1.9 1.9 1.9 2189000200060 (ERR-14) Detector efficiency. 2189000200061 2.3 2.3 2.3 2.3 2.3 2.3 2189000200062 (ERR-T) Total uncertainty. 2189000200063 STATUS (TABLE) Table VII in R,KFK-3582,1,1983 . 2189000200064 Table II of J,NSE,87,48,1984 - data. 2189000200065 (DEP,21890003) Data for graphite converter material 2189000200066 (DEP,21890004) Data for bismuth-graphite converter 2189000200067 (DEP,21890005) Data for bismuth converter material 2189000200068 HISTORY (19831107C) 2189000200069 (19840202E) 2189000200070 (20161103A) M.M. ERR-1 -> ERR-SYS; 2189000200071 ERR-ANALYS was recompiled, errors values were added in2189000200072 COMMON and DATA blocks. 2189000200073 DEP,* was added in STATUS. 2189000200074 ANALYSIS, ASSUMED were added. 2189000200075 ENDBIB 73 0 2189000200076 COMMON 9 6 2189000200077 MOMENTUM L ASSUM1 ASSUM2 ERR-6 ERR-7 ERR-8 2189000200078 ERR-9 ERR-10 ERR-14 2189000200079 NO-DIM NO-DIM FERMI PER-CENT PER-CENT PER-CENT 2189000200080 PER-CENT PER-CENT PER-CENT 2189000200081 0. 2.9E-4 7.5 0.7 2.5 0.3 2189000200082 0.5 2.0 2.3 2189000200083 ENDCOMMON 6 0 2189000200084 DATA 11 2 2189000200085 EN-RES DATA ERR-S ERR-SYS ERR-T ASSUM3 2189000200086 ERR-3 ERR-5 ERR-11 ERR-12 ERR-13 2189000200087 KEV EV PER-CENT PER-CENT PER-CENT KEV 2189000200088 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2189000200089 13.9 1.01 3.7 5.7 6.8 2.9 2189000200090 2.1 0.2 1.0 0.6 2189000200091 33.8 1.16 3.4 6.2 7.1 8.9 2189000200092 0.1 2.5 1.7 1.9 2189000200093 ENDDATA 8 0 2189000200094 ENDSUBENT 93 0 2189000299999 SUBENT 21890003 20161103 22552189000300001 BIB 5 11 2189000300002 REACTION (28-NI-64(N,G),,WID) 2189000300003 DETECTOR (MOXR) Moxon-Rae detector with graphite converter 2189000300004 ANALYSIS Average values for three runs and two types of fitting:2189000300005 - Gn free, 2189000300006 - Gn fixed. 2189000300007 For details - see Table V of R,KFK-3582,1,1983 2189000300008 Normalization factor for p-wave resonances - 0.865 2189000300009 Correction factor for detector efficiency - 0.868 2189000300010 STATUS (TABLE) Table VII in R,KFK-3582,1,1983 -data. 2189000300011 Table II of Nucl.Sci.Eng.87(1984)48. 2189000300012 HISTORY (20161103C) M.M. Subent was added. 2189000300013 ENDBIB 11 0 2189000300014 COMMON 1 3 2189000300015 MOMENTUM L 2189000300016 NO-DIM 2189000300017 0. 2189000300018 ENDCOMMON 3 0 2189000300019 DATA 2 2 2189000300020 EN-RES DATA 2189000300021 KEV EV 2189000300022 13.9 0.97 2189000300023 33.8 1.24 2189000300024 ENDDATA 4 0 2189000300025 ENDSUBENT 24 0 2189000399999 SUBENT 21890004 20161103 22552189000400001 BIB 5 12 2189000400002 REACTION (28-NI-64(N,G),,WID) 2189000400003 DETECTOR (MOXR) Moxon-Rae detectors with bismuth - graphite 2189000400004 converter. 2189000400005 ANALYSIS Average values for three runs and two types of fitting:2189000400006 - Gn free, 2189000400007 - Gn fixed. 2189000400008 For details - see Table V of R,KFK-3582,1,1983 2189000400009 Normalization factor for p-wave resonances - 0.920 2189000400010 Correction factor for detector efficiency - 0.906 2189000400011 STATUS (TABLE) Table VII in R,KFK-3582,1,1983 -data. 2189000400012 Table II of Nucl.Sci.Eng.87(1984)48. 2189000400013 HISTORY (20161103C) M.M. Subent was added. 2189000400014 ENDBIB 12 0 2189000400015 COMMON 1 3 2189000400016 MOMENTUM L 2189000400017 NO-DIM 2189000400018 0. 2189000400019 ENDCOMMON 3 0 2189000400020 DATA 2 2 2189000400021 EN-RES DATA 2189000400022 KEV EV 2189000400023 13.9 1.01 2189000400024 33.8 1.18 2189000400025 ENDDATA 4 0 2189000400026 ENDSUBENT 25 0 2189000499999 SUBENT 21890005 20161103 22552189000500001 BIB 5 11 2189000500002 REACTION (28-NI-64(N,G),,WID) 2189000500003 DETECTOR (MOXR) Moxon-Rae detectors with bismuth converter. 2189000500004 ANALYSIS Average values for three runs and two types of fitting:2189000500005 - Gn free, 2189000500006 - Gn fixed. 2189000500007 For details - see Table V of R,KFK-3582,1,1983 2189000500008 Normalization factor for p-wave resonances - 0.971 2189000500009 Correction factor for detector efficiency - 0.929 2189000500010 STATUS (TABLE) Table VII in R,KFK-3582,1,1983 -data, 2189000500011 Table II of Nucl.Sci.Eng.87(1984)48. 2189000500012 HISTORY (20161103C) M.M. Subent was added. 2189000500013 ENDBIB 11 0 2189000500014 COMMON 1 3 2189000500015 MOMENTUM L 2189000500016 NO-DIM 2189000500017 0. 2189000500018 ENDCOMMON 3 0 2189000500019 DATA 2 2 2189000500020 EN-RES DATA 2189000500021 KEV EV 2189000500022 13.9 1.01 2189000500023 33.9 1.06 2189000500024 ENDDATA 4 0 2189000500025 ENDSUBENT 24 0 2189000599999 SUBENT 21890006 20161103 22552189000600001 BIB 7 15 2189000600002 REACTION (28-NI-64(N,G)28-NI-65,,SIG,,MXW,DERIV) MACS 2189000600003 ANALYSIS MACS were calculated using present results for the 2189000600004 s-wave resonances at 13.9 and 33.9 keV and the 2189000600005 preliminary values of R.R.Spencer and R.L.Macklin 2189000600006 ( private communication) for all other resonances. 2189000600007 REL-REF (R,,R.R.Spencer+,W,SPENCER,1982) 2189000600008 MISC-COL (MISC1) Contribution of s-wave resonances at 13.9 and 2189000600009 33.8 keV, absolute value . 2189000600010 (MISC2) Contribution of s-wave resonances at 13.9 and 2189000600011 33.8 keV, relative value in percents. 2189000600012 ERR-ANALYS (ERR-T) Total uncertainty. 2189000600013 STATUS (TABLE) Table IX in R,KFK-3582,1,1983 2189000600014 = Table IV of J,NSE,87,48,1984 . 2189000600015 (DEP,21890002) Resonance parameters 2189000600016 HISTORY (20161103C) M.M. Subent was added. 2189000600017 ENDBIB 15 0 2189000600018 NOCOMMON 0 0 2189000600019 DATA 5 5 2189000600020 KT DATA ERR-T MISC1 MISC2 2189000600021 KEV MB MB MB PER-CENT 2189000600022 20. 13.7 10.1 73.6 2189000600023 25. 11.9 8.1 68.1 2189000600024 30. 10.7 0.9 6.7 63.0 2189000600025 35. 9.8 5.8 58.5 2189000600026 40. 9.2 5.0 54.5 2189000600027 ENDDATA 7 0 2189000600028 ENDSUBENT 27 0 2189000699999 ENDENTRY 6 0 2189099999999