ENTRY 22351 20150824 22432235100000001 SUBENT 22351001 20150824 22432235100100001 BIB 17 94 2235100100002 TITLE .Measurements of activation cross sections on Ta, W 2235100100003 for 14 MeV neutrons 2235100100004 AUTHOR (Y.Kasugai,H.Yamamoto,A.Takahashi,T.Iida,K.Kawade) 2235100100005 INSTITUTE (2JPNNAG) Y.Kasugai, H.Yamamoto, K.Kawade 2235100100006 Department of Nuclear Engineering 2235100100007 (2JPNOSA) A.Takahashi, T.Iida 2235100100008 REFERENCE ((S,JAERI-M-93-046,277,1993)= 2235100100009 (S,INDC(JPN)-163,277,1993)) main reference, data 2235100100010 are given. Proceedings of the 1992 Symposium on 2235100100011 Nuclear Data, November 26-27, 1992, JAERI 2235100100012 FACILITY (CCW,2JPNOSA) The intense 14 MeV neutron source 2235100100013 OKTAVIAN at Osaka University. 2235100100014 INC-SOURCE (D-T) The d-beam energy was 300 keV and the intensity 2235100100015 was 5 milliamps. A sample transport system of six 2235100100016 pneumatic tubes at angles of 0, 50, 75, 105, 125 and 2235100100017 155 deg to the deuteron beam provided irradiation 2235100100018 positions giving monochromatic neutrons of 13.4-14.9 2235100100019 MeV. Another tube was put at -105 deg to check the 2235100100020 symmetry of the system. The irradiation positions were2235100100021 about 15 cm from the tritium target. An additional 2235100100022 tube set at -22.5 deg and at 1.5 cm distance was used 2235100100023 when strong activities were required. The transfer 2235100100024 time was about 2 sec. The effective reaction neutron 2235100100025 energy at each position was determined by the ratio of2235100100026 the 90-Zr(n,2n) and 93-Nb(n,2n) cross sections. The 2235100100027 uncertainty in the neutron energy is estimated to be 2235100100028 +/- 50 keV. 2235100100029 MONITOR (13-AL-27(N,P)12-MG-27,,SIG) For neutron flux 2235100100030 monitoring 2235100100031 The reference 27Al(n,p)27Mg reaction was determined 2235100100032 by referring to the standard 27Al(n,alpha) reaction. 2235100100033 (13-AL-27(N,A)11-NA-24,,SIG) 2235100100034 (41-NB-93(N,2N)41-NB-92-M,,SIG) 2235100100035 MONIT-REF (,,3,ENDF/B-V,,1979) - standard 27Al(n,alpha) reaction 2235100100036 INC-SPECT .Angles of irradiation were 0,50,75,105, 125, 155 adeg 2235100100037 effective neutron energy determined by Zr/Nb method 2235100100038 DETECTOR (HPGE) Three Ge-detectors - 12 pc, 21 pc, 16 pc at an 2235100100039 equivalent distance 5 cm 2235100100040 METHOD (ACTIV) 2235100100041 DECAY-MON (41-NB-92-M,10.5D,DG) 2235100100042 SAMPLE .For neutron flux monitoring two niobium foils (99.9% 2235100100043 purity, 1*1 cm area, 0.1 mm thickness) and aluminium 2235100100044 foil (purity 99.2%, 1*1 cm2 area 0.2 mm thickness) 2235100100045 were used. 2235100100046 CORRECTION .Corrections were made for - 2235100100047 true coincidence sum - less than 0.5% 2235100100048 random coincidence sum - less than 0.4% 2235100100049 sample thickness - 0.2-0.6% (20% of corrections) 2235100100050 self-absorption of gamma-rays - 0-0.5% 2235100100051 (20% of corrections) 2235100100052 low-energy neutrons - 0.-5.% (30-40% of 2235100100053 corrections) 2235100100054 STATUS (TABLE) Data from table 3 of the JAERI-M-93-046,277 2235100100055 ERR-ANALYS (ERR-T) The square root of the sum of squared of the 2235100100056 experimental error and error in nuclear data 2235100100057 Experimental error includes: 2235100100058 (ERR-S,0.5,20.) counting statistics error 2235100100059 (ERR-1) sample mass (including purity) error 2235100100060 (ERR-2,,0.1) neutron flux fluctuation error 2235100100061 (ERR-3) gamma-peak area evaluation error 2235100100062 (ERR-4,1.5,5.) detector efficiency error for 2235100100063 E-gamma > 300 keV - 1.5% 2235100100064 E-gamma between 300-80 keV - 3.% 2235100100065 E-gamma < 80 keV - 5.% 2235100100066 (ERR-5) efficiency calibration error 2235100100067 (ERR-6) Uncertainty in reference cross 2235100100068 section of 27-Al(n,p)27-mg (statistics only) 0.5% 2235100100069 (ERR-7,,0.5) Uncertainty in correction for true 2235100100070 coincidence sum <0.5% 2235100100071 (ERR-8,,0.4) Uncertainty in correct. for random 2235100100072 coincidence sum < 0.4% 2235100100073 (ERR-9,0.2,0.6) Uncertainty in correction for sample 2235100100074 thickness 0.2 - 0.6% 2235100100075 (ERR-10,0.,0.5) Uncertainty in correction for 2235100100076 self-absorption of gammas 0 - 0.5% 2235100100077 (ERR-11,0.,5.) Uncertainty in correction for low 2235100100078 energy neutrons 0 - 5% 2235100100079 .Nuclear data error includes: 2235100100080 (ERR-12) Uncertainty in ENDF/B-V reference cross 2235100100081 section of 27-Al(N,alpha)24-Na 3.0% 2235100100082 (ERR-13) Uncertainty in reference cross 2235100100083 section of 93Nb(n,2n)92mNb 4.2% 2235100100084 (ERR-14,0.,20.) Uncertainty in absolute gamma 2235100100085 intensity 0 - 20% 2235100100086 (ERR-15,0.,5.) Uncertainty in half-life 0 - 5% 2235100100087 (EN-ERR) uncertainty in energy 2235100100088 HISTORY (19970921C) + + Compiled by S.Maev + + 2235100100089 (20080416A) sd nds: isomeric state for 73-Ta-182-m 2235100100090 isotope at subent 006 was changed on 73-Ta-182-m2 2235100100091 according to exfor reaction formalism. 2235100100092 (20150824U) SD:Updated to new date formats,lower case. 2235100100093 Corrections according last EXFOR rules and Dict. 2235100100094 STATUS "superseded" was added to Subents 2,4,8-10. 2235100100095 ERR-ANALYS updated. 2235100100096 ENDBIB 94 0 2235100100097 COMMON 7 6 2235100100098 EN-ERR ERR-1 ERR-3 ERR-5 ERR-6 ERR-12 2235100100099 ERR-13 2235100100100 KEV PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2235100100101 PER-CENT 2235100100102 50. 0.1 0.5 2.0 0.5 3.02235100100103 4.2 2235100100104 ENDCOMMON 6 0 2235100100105 ENDSUBENT 104 0 2235100199999 SUBENT 22351002 20150824 22432235100200001 BIB 5 5 2235100200002 REACTION (73-TA-181(N,P)72-HF-181,,SIG) 2235100200003 DECAY-DATA (72-HF-181,42.39D,DG,482.0,0.806) 2235100200004 SAMPLE .Samples of natural element 1*1 cm area 2235100200005 STATUS (SPSDD,23011002) by K.Kawade (2014-04-30) 2235100200006 HISTORY (20150824U) SD: STATUS "superseded" was added. 2235100200007 ENDBIB 5 0 2235100200008 NOCOMMON 0 0 2235100200009 DATA 3 6 2235100200010 EN DATA ERR-T 2235100200011 EV MB MB 2235100200012 1.3400E+07 2.17 0.14 2235100200013 1.3650E+07 2.34 0.15 2235100200014 1.3880E+07 2.81 0.18 2235100200015 1.4280E+07 3.19 0.21 2235100200016 1.4580E+07 3.92 0.45 2235100200017 1.4870E+07 4.16 0.24 2235100200018 ENDDATA 8 0 2235100200019 ENDSUBENT 18 0 2235100299999 SUBENT 22351003 20150824 22432235100300001 BIB 3 3 2235100300002 REACTION (73-TA-181(N,A)71-LU-178-M,,SIG) 2235100300003 DECAY-DATA (71-LU-178-M,23.1MIN,DG,426.3,0.974) 2235100300004 SAMPLE .Samples of natural element 1*1 cm area 2235100300005 ENDBIB 3 0 2235100300006 NOCOMMON 0 0 2235100300007 DATA 3 6 2235100300008 EN DATA ERR-T 2235100300009 EV MB MB 2235100300010 1.3400E+07 0.192 0.018 2235100300011 1.3650E+07 0.213 0.018 2235100300012 1.3880E+07 0.233 0.020 2235100300013 1.4280E+07 0.240 0.036 2235100300014 1.4580E+07 0.301 0.026 2235100300015 1.4870E+07 0.341 0.029 2235100300016 ENDDATA 8 0 2235100300017 ENDSUBENT 16 0 2235100399999 SUBENT 22351004 20150824 22432235100400001 BIB 5 6 2235100400002 REACTION (73-TA-181(N,X)72-HF-180-M,,SIG) 2235100400003 DECAY-DATA (72-HF-180-M,5.519HR,DG,332.3,0.944) 2235100400004 SAMPLE .Samples of natural element 1*1 cm area 2235100400005 STATUS (SPSDD,23011003) by K.Kawade (2014-04-30) 2235100400006 HISTORY (20150824A) SD: STATUS "superseded" was added. Sum of 2235100400007 reactions reduced using SF3=X. 2235100400008 ENDBIB 6 0 2235100400009 NOCOMMON 0 0 2235100400010 DATA 3 6 2235100400011 EN DATA ERR-T 2235100400012 EV MB MB 2235100400013 1.3400E+07 0.030 0.004 2235100400014 1.3650E+07 0.042 0.005 2235100400015 1.3880E+07 0.066 0.005 2235100400016 1.4280E+07 0.091 0.011 2235100400017 1.4580E+07 0.134 0.011 2235100400018 1.4870E+07 0.151 0.011 2235100400019 ENDDATA 8 0 2235100400020 ENDSUBENT 19 0 2235100499999 SUBENT 22351005 20150824 22432235100500001 BIB 3 3 2235100500002 REACTION (73-TA-181(N,2N)73-TA-180-G,,SIG) 2235100500003 DECAY-DATA (73-TA-180-G,8.152HR,DG,93.3,0.05) 2235100500004 SAMPLE .Samples of natural element 1*1 cm area 2235100500005 ENDBIB 3 0 2235100500006 NOCOMMON 0 0 2235100500007 DATA 3 6 2235100500008 EN DATA ERR-T 2235100500009 EV B B 2235100500010 1.3400E+07 1.24 0.09 2235100500011 1.3650E+07 1.25 0.09 2235100500012 1.3880E+07 1.21 0.08 2235100500013 1.4280E+07 1.25 0.09 2235100500014 1.4580E+07 1.23 0.09 2235100500015 1.4870E+07 1.24 0.09 2235100500016 ENDDATA 8 0 2235100500017 ENDSUBENT 16 0 2235100599999 SUBENT 22351006 20150824 22432235100600001 BIB 3 4 2235100600002 REACTION (74-W-182(N,P)73-TA-182-M2,,SIG) 2235100600003 DECAY-DATA (73-TA-182-M2,15.84MIN,DG,171.6,0.459) 2235100600004 SAMPLE .Samples of enriched element 1*1 cm area, 2235100600005 W-182 content not given 2235100600006 ENDBIB 4 0 2235100600007 NOCOMMON 0 0 2235100600008 DATA 3 5 2235100600009 EN DATA ERR-T 2235100600010 EV MB MB 2235100600011 1.3400E+07 0.080 0.034 2235100600012 1.3880E+07 0.088 0.028 2235100600013 1.4280E+07 0.13 0.04 2235100600014 1.4580E+07 0.22 0.05 2235100600015 1.4870E+07 0.25 0.08 2235100600016 ENDDATA 7 0 2235100600017 ENDSUBENT 16 0 2235100699999 SUBENT 22351007 20150824 22432235100700001 BIB 3 4 2235100700002 REACTION (74-W-184(N,P)73-TA-184,,SIG) 2235100700003 DECAY-DATA (73-TA-184,8.7HR,DG,414.0,0.739) 2235100700004 SAMPLE .Samples of enriched element 1*1 cm area, 2235100700005 W-184 content is not given 2235100700006 ENDBIB 4 0 2235100700007 NOCOMMON 0 0 2235100700008 DATA 3 5 2235100700009 EN DATA ERR-T 2235100700010 EV MB MB 2235100700011 1.3400E+07 2.08 0.10 2235100700012 1.3650E+07 2.16 0.10 2235100700013 1.3880E+07 2.33 0.12 2235100700014 1.4280E+07 2.91 0.13 2235100700015 1.4870E+07 3.72 0.17 2235100700016 ENDDATA 7 0 2235100700017 ENDSUBENT 16 0 2235100799999 SUBENT 22351008 20150824 22432235100800001 BIB 5 7 2235100800002 REACTION (74-W-186(N,P)73-TA-186-G,,SIG) 2235100800003 DECAY-DATA (73-TA-186-G,10.5MIN,DG,198.1,0.59) 2235100800004 SAMPLE .Samples of enriched element 1*1 cm area, 2235100800005 W-186 content is not given 2235100800006 STATUS (SPSDD,22311014) by K.Kawade (2014-04-30) 2235100800007 HISTORY (20150824A) SD: STATUS "superseded" was added. 2235100800008 Ta-186 -> Ta-186g in REACTION code and DECAY-DATA. 2235100800009 ENDBIB 7 0 2235100800010 NOCOMMON 0 0 2235100800011 DATA 3 5 2235100800012 EN DATA ERR-T 2235100800013 EV MB MB 2235100800014 1.3400E+07 0.84 0.22 2235100800015 1.3650E+07 0.97 0.21 2235100800016 1.3880E+07 1.08 0.24 2235100800017 1.4580E+07 1.73 0.34 2235100800018 1.4870E+07 1.90 0.40 2235100800019 ENDDATA 7 0 2235100800020 ENDSUBENT 19 0 2235100899999 SUBENT 22351009 20150824 22432235100900001 BIB 5 6 2235100900002 REACTION (74-W-184(N,A)72-HF-181,,SIG) 2235100900003 DECAY-DATA (72-HF-181,42.39D,DG,482.0,0.806) 2235100900004 SAMPLE .Samples of enriched element 1*1 cm area, 2235100900005 W-184 content is not given 2235100900006 STATUS (SPSDD,23011004) by K.Kawade (2014-04-30) 2235100900007 HISTORY (20150824U) SD: STATUS "superseded" was added. 2235100900008 ENDBIB 6 0 2235100900009 NOCOMMON 0 0 2235100900010 DATA 3 6 2235100900011 EN DATA ERR-T 2235100900012 EV MB MB 2235100900013 1.3400E+07 0.56 0.09 2235100900014 1.3650E+07 0.56 0.09 2235100900015 1.3880E+07 0.67 0.09 2235100900016 1.4280E+07 0.79 0.10 2235100900017 1.4580E+07 0.87 0.11 2235100900018 1.4870E+07 0.91 0.13 2235100900019 ENDDATA 8 0 2235100900020 ENDSUBENT 19 0 2235100999999 SUBENT 22351010 20150824 22432235101000001 BIB 5 6 2235101000002 REACTION (74-W-186(N,A)72-HF-183,,SIG) 2235101000003 DECAY-DATA (72-HF-183,1.067HR,DG,783.8,0.65) 2235101000004 SAMPLE .Samples of enriched element 1*1 cm area, 2235101000005 W-186 content is not given 2235101000006 STATUS (SPSDD,23011006) by K.Kawade (2014-04-30) 2235101000007 HISTORY (20150824U) SD: STATUS "superseded" was added. 2235101000008 ENDBIB 6 0 2235101000009 NOCOMMON 0 0 2235101000010 DATA 3 6 2235101000011 EN DATA ERR-T 2235101000012 EV MB MB 2235101000013 1.3400E+07 0.24 0.08 2235101000014 1.3650E+07 0.38 0.05 2235101000015 1.3880E+07 0.41 0.06 2235101000016 1.4280E+07 0.51 0.07 2235101000017 1.4580E+07 0.56 0.08 2235101000018 1.4870E+07 0.71 0.09 2235101000019 ENDDATA 8 0 2235101000020 ENDSUBENT 19 0 2235101099999 ENDENTRY 10 0 2235199999999