ENTRY G4107 20240312 G410700000001 SUBENT G4107001 20240312 20250110 G410700100001 BIB 15 39 G410700100002 TITLE Cross sections of photoneutron reactions on 181Ta at G410700100003 Egmax up to 95 MeV G410700100004 AUTHOR (O.S.Deiev,I.S.Timchenko,S.N.Olejnik,V.A.Kushnir, G410700100005 V.V.Mytrochenko,S.A.Perezhogin) G410700100006 INSTITUTE (4UKRKFT) G410700100007 REFERENCE (J,PR/C,106,024617,2022) G410700100008 #doi:10.1103/PhysRevC.106.024617 G410700100009 FACILITY (LINAC,4UKRKFT) LUE-40 G410700100010 INC-SOURCE (BRST) G410700100011 DETECTOR (HPGE) A semiconductor HPGe detector (Canberra GC-2018)G410700100012 was used with resolutions of 0.8 keV and 1.8 keV (FWHM)G410700100013 for the energies Eg = 122 keV and 1332 keV. The G410700100014 absolute registration efficiency of the detector was G410700100015 calibrated with a standard set of gamma-ray sources G410700100016 22Na, 60Co, 133Ba, 137Cs, 152Eu and 241Am. G410700100017 SAMPLE The targets made of natural tantalum with a diameter G410700100018 8 mm and mass about of 43 mg. G410700100019 METHOD (ACTIV) Induced beta-delayed gamma-activity measured. G410700100020 MONITOR (42-MO-100(G,N)42-MO-99,,SIG,,BRA) G410700100021 The natMo witness-targets were placed inside the G410700100022 aluminum capsule together with the tantalum targets. G410700100023 DECAY-MON (42-MO-99,65.94HR,DG,739.50,0.1213) G410700100024 ERR-ANALYS (ERR-T) A squared sum of statistical and systematic G410700100025 errors. G410700100026 (ERR-S,1.,10.) The statistical error in the observed G410700100027 gamma-activity. G410700100028 (ERR-1) time of exposure and the electron current, G410700100029 (ERR-2,2.,3.) radiation detection efficiency (2-3%), G410700100030 (ERR-3,1.3,20.) half-life period of reaction products G410700100031 and the absolute intensity of the G410700100032 gamma-quanta (1.3-20)%, G410700100033 (ERR-4,5.,6.) normalization of the experimental data toG410700100034 the yield of the monitoring reaction G410700100035 100Mo(g,n)99Mo. G410700100036 CORRECTION The self-absorption of gamma-radiation of the reaction G410700100037 products in the target was taken into account. G410700100038 ADD-RES (COMP) Experimental data are compared with theoretical G410700100039 predictions calculated with TALYS 1.9 code. G410700100040 HISTORY (20240312C) UkrNDC G410700100041 ENDBIB 39 0 G410700100042 COMMON 1 3 G410700100043 ERR-1 G410700100044 PER-CENT G410700100045 0.5 G410700100046 ENDCOMMON 3 0 G410700100047 ENDSUBENT 46 0 G410700199999 SUBENT G4107002 20240312 20250110 G410700200001 BIB 3 3 G410700200002 REACTION (73-TA-181(G,N)73-TA-180-G,,SIG,,BRA) G410700200003 DECAY-DATA (73-TA-180-G,8.152HR,DG,103.557,0.0081) G410700200004 STATUS (TABLE,,O.S.Deiev+,J,PR/C,106,024617,2022) Tab.II G410700200005 ENDBIB 3 0 G410700200006 NOCOMMON 0 0 G410700200007 DATA 3 16 G410700200008 EN-MAX DATA ERR-T G410700200009 MEV MB MB G410700200010 35.1 97.3 19.9 G410700200011 39.9 96.6 19.7 G410700200012 45.1 80.4 16.4 G410700200013 50.0 75.1 15.3 G410700200014 55.2 78.0 15.9 G410700200015 60.1 78.3 16.0 G410700200016 64.6 74.7 15.3 G410700200017 70.3 71.7 14.6 G410700200018 75.2 68.5 14.0 G410700200019 80.2 71.7 14.5 G410700200020 80.7 73.2 15.0 G410700200021 84.9 67.1 13.6 G410700200022 85.6 67.4 13.6 G410700200023 90.5 64.0 12.9 G410700200024 90.9 67.0 13.5 G410700200025 95.0 65.4 13.2 G410700200026 ENDDATA 18 0 G410700200027 ENDSUBENT 26 0 G410700299999 SUBENT G4107003 20240312 20250110 G410700300001 BIB 4 6 G410700300002 REACTION (73-TA-181(G,2N)73-TA-179,,SIG,,BRA) G410700300003 DECAY-DATA (73-TA-179,1.82YR,DG,54.611,0.136, G410700300004 DG,55.790,0.237) G410700300005 STATUS (TABLE,,O.S.Deiev+,J,PR/C,106,024617,2022) Tab.III G410700300006 REL-REF (O,G4094007,A.N.Vodin+,J,EPJ/A,57,208,2021) Data at G410700300007 Eg>=80.2 MeV G410700300008 ENDBIB 6 0 G410700300009 NOCOMMON 0 0 G410700300010 DATA 3 8 G410700300011 EN-MAX DATA ERR-T G410700300012 MEV MB MB G410700300013 35.1 89.7 5.5 G410700300014 39.9 85.2 5.2 G410700300015 50.0 63.2 3.9 G410700300016 55.2 59.2 3.6 G410700300017 60.1 59.9 3.7 G410700300018 64.6 57.5 3.5 G410700300019 70.3 51.5 3.2 G410700300020 75.2 50.8 3.1 G410700300021 ENDDATA 10 0 G410700300022 ENDSUBENT 21 0 G410700399999 SUBENT G4107004 20240312 20250110 G410700400001 BIB 4 5 G410700400002 REACTION (73-TA-181(G,4N)73-TA-177,,SIG,,BRA) G410700400003 DECAY-DATA (73-TA-177,56.56HR,DG,112.9498,0.072) G410700400004 STATUS (TABLE,,O.S.Deiev+,J,PR/C,106,024617,2022) Tab.III G410700400005 REL-REF (O,G4094008,A.N.Vodin+,J,EPJ/A,57,208,2021) Data at G410700400006 Eg=80.2 MeV and at Eg>=84.9 MeV G410700400007 ENDBIB 5 0 G410700400008 NOCOMMON 0 0 G410700400009 DATA 3 7 G410700400010 EN-MAX DATA ERR-T G410700400011 MEV MB MB G410700400012 50.0 6.15 1.09 G410700400013 55.2 5.15 1.08 G410700400014 60.1 5.18 0.84 G410700400015 64.6 5.08 0.89 G410700400016 70.3 5.26 0.85 G410700400017 75.2 3.96 0.73 G410700400018 80.7 3.32 0.51 G410700400019 ENDDATA 9 0 G410700400020 ENDSUBENT 19 0 G410700499999 SUBENT G4107005 20240312 20250110 G410700500001 BIB 4 5 G410700500002 REACTION (73-TA-181(G,5N)73-TA-176,,SIG,,BRA) G410700500003 DECAY-DATA (73-TA-176,8.09HR,DG,1159.28,0.25) G410700500004 STATUS (TABLE,,O.S.Deiev+,J,PR/C,106,024617,2022) Tab.III G410700500005 REL-REF (O,G4094009,A.N.Vodin+,J,EPJ/A,57,208,2021) Data at G410700500006 Eg=80.2 MeV and at Eg>=84.9 MeV G410700500007 ENDBIB 5 0 G410700500008 NOCOMMON 0 0 G410700500009 DATA 3 7 G410700500010 EN-MAX DATA ERR-T G410700500011 MEV MB MB G410700500012 50.0 2.14 0.18 G410700500013 55.2 3.50 0.27 G410700500014 60.1 4.13 0.31 G410700500015 64.6 4.36 0.33 G410700500016 70.3 4.19 0.31 G410700500017 75.2 3.66 0.27 G410700500018 80.7 3.79 0.30 G410700500019 ENDDATA 9 0 G410700500020 ENDSUBENT 19 0 G410700599999 SUBENT G4107006 20240312 20250110 G410700600001 BIB 4 5 G410700600002 REACTION (73-TA-181(G,6N)73-TA-175,,SIG,,BRA) G410700600003 DECAY-DATA (73-TA-175,10.5HR,DG,348.5,0.120) G410700600004 STATUS (TABLE,,O.S.Deiev+,J,PR/C,106,024617,2022) Tab.IV G410700600005 REL-REF (O,G4094010,A.N.Vodin+,J,EPJ/A,57,208,2021) Data at G410700600006 Eg=80.2 MeV and at Eg>=84.9 MeV G410700600007 ENDBIB 5 0 G410700600008 NOCOMMON 0 0 G410700600009 DATA 3 5 G410700600010 EN-MAX DATA ERR-T G410700600011 MEV MB MB G410700600012 60.1 1.46 0.22 G410700600013 64.6 2.41 0.23 G410700600014 70.3 2.26 0.19 G410700600015 75.2 2.20 0.18 G410700600016 80.7 2.49 0.19 G410700600017 ENDDATA 7 0 G410700600018 ENDSUBENT 17 0 G410700699999 SUBENT G4107007 20240312 20250110 G410700700001 BIB 4 5 G410700700002 REACTION (73-TA-181(G,7N)73-TA-174,,SIG,,BRA) G410700700003 DECAY-DATA (73-TA-174,1.05HR,DG,1205.92,0.049) G410700700004 STATUS (TABLE,,O.S.Deiev+,J,PR/C,106,024617,2022) Tab.IV G410700700005 REL-REF (O,G4094011,A.N.Vodin+,J,EPJ/A,57,208,2021) Data at G410700700006 Eg=80.2 MeV and at Eg>=84.9 MeV G410700700007 ENDBIB 5 0 G410700700008 NOCOMMON 0 0 G410700700009 DATA 3 2 G410700700010 EN-MAX DATA ERR-T G410700700011 MEV MB MB G410700700012 75.2 0.99 0.10 G410700700013 80.7 1.01 0.09 G410700700014 ENDDATA 4 0 G410700700015 ENDSUBENT 14 0 G410700799999 SUBENT G4107008 20240312 20250110 G410700800001 BIB 5 19 G410700800002 REACTION (73-TA-181(G,N)73-TA-180,,SIG,,BRA,DERIV) G410700800003 The experimental result for the total cross section of G410700800004 the 181Ta(g,n)180Ta reaction is given using the value G410700800005 g/=0.915 G410700800006 DECAY-DATA (73-TA-180-G,8.152HR,DG,103.557,0.0081) G410700800007 T1/2 for Ta180m >1.2e15 years G410700800008 ANALYSIS The total average cross section for this reaction was G410700800009 estimated through the use a ratio of the theoretical G410700800010 values for the total cross section and for the G410700800011 ground-state one, calculated by the TALYS1.95 code. G410700800012 The average value of this ratio was equal 0.915+/-5%. G410700800013 It leads to uncertainty of the total cross-section G410700800014 about of 5%. G410700800015 FLAG (1.) Present data for Ta181(g,n)Ta180 G410700800016 (2.) Improved data for Ta181(g,n)Ta180 G410700800017 from G4094006,A.N.Vodin+,J,EPJ/A,57,208,2021 G410700800018 STATUS (TABLE,,O.S.Deiev+,J,PR/C,106,024617,2022) G410700800019 (DEP,G4107002) Ta181(g,n)Ta180-G cross section G410700800020 determined G410700800021 ENDBIB 19 0 G410700800022 NOCOMMON 0 0 G410700800023 DATA 4 16 G410700800024 EN-MAX DATA ERR-T FLAG G410700800025 MEV MB MB NO-DIM G410700800026 35.1 106.4 21.7 1. G410700800027 39.9 105.6 21.6 1. G410700800028 45.1 87.8 17.9 1. G410700800029 50.0 82.0 16.8 1. G410700800030 55.2 85.3 17.4 1. G410700800031 60.1 85.6 17.5 1. G410700800032 64.6 81.7 16.7 1. G410700800033 70.3 78.3 14.6 1. G410700800034 75.2 74.8 15.3 1. G410700800035 80.2 78.4 15.8 2. G410700800036 80.7 80.0 16.4 1. G410700800037 84.9 73.4 14.8 2. G410700800038 85.6 73.7 14.9 2. G410700800039 90.5 69.9 14.9 2. G410700800040 90.9 73.2 14.8 2. G410700800041 95.0 71.5 14.4 2. G410700800042 ENDDATA 18 0 G410700800043 ENDSUBENT 42 0 G410700899999 SUBENT G4107009 20240312 20250110 G410700900001 BIB 3 3 G410700900002 REACTION (73-TA-181(G,8N)73-TA-173,,SIG,,BRA) G410700900003 DECAY-DATA (73-TA-173,3.14HR,DG,172.2,0.18) G410700900004 STATUS (TABLE,,O.S.Deiev+,J,PR/C,106,024617,2022) Tab.IV G410700900005 ENDBIB 3 0 G410700900006 NOCOMMON 0 0 G410700900007 DATA 3 6 G410700900008 EN-MAX DATA ERR-T G410700900009 MEV MB MB G410700900010 80.2 0.16 0.12 G410700900011 84.9 0.44 0.16 G410700900012 85.6 0.38 0.14 G410700900013 90.5 0.60 0.28 G410700900014 90.9 0.79 0.15 G410700900015 95.0 0.74 0.19 G410700900016 ENDDATA 8 0 G410700900017 ENDSUBENT 16 0 G410700999999 SUBENT G4107010 20240313 20250110 G410701000001 BIB 3 3 G410701000002 REACTION (73-TA-181(G,3N)73-TA-178-G,,SIG,,BRA) G410701000003 DECAY-DATA (73-TA-178-G,9.31MIN,DG,1350.68,0.0118) G410701000004 STATUS (TABLE,,O.S.Deiev+,J,PR/C,106,024617,2022) Tab.II G410701000005 ENDBIB 3 0 G410701000006 NOCOMMON 0 0 G410701000007 DATA 3 16 G410701000008 EN-MAX DATA ERR-T G410701000009 MEV MB MB G410701000010 35.1 8.59 0.70 G410701000011 39.9 9.57 0.67 G410701000012 45.1 7.30 0.49 G410701000013 50.0 6.98 0.45 G410701000014 55.2 6.33 0.50 G410701000015 60.1 6.21 0.57 G410701000016 64.6 5.29 0.43 G410701000017 70.3 5.20 0.48 G410701000018 75.2 4.86 0.45 G410701000019 80.2 4.96 0.47 G410701000020 80.7 4.82 0.39 G410701000021 84.9 4.77 0.67 G410701000022 85.6 4.78 0.46 G410701000023 90.5 4.64 0.63 G410701000024 90.9 4.49 0.43 G410701000025 95.0 4.56 0.46 G410701000026 ENDDATA 18 0 G410701000027 ENDSUBENT 26 0 G410701099999 SUBENT G4107011 20240313 20250110 G410701100001 BIB 3 3 G410701100002 REACTION (73-TA-181(G,3N)73-TA-178-M,,SIG,,BRA) G410701100003 DECAY-DATA (73-TA-178-M,2.36HR,DG,426.383,0.97) G410701100004 STATUS (TABLE,,O.S.Deiev+,J,PR/C,106,024617,2022) Tab.II G410701100005 ENDBIB 3 0 G410701100006 NOCOMMON 0 0 G410701100007 DATA 3 16 G410701100008 EN-MAX DATA ERR-T G410701100009 MEV MB MB G410701100010 35.1 2.63 0.17 G410701100011 39.9 2.92 0.18 G410701100012 45.1 2.50 0.16 G410701100013 50.0 2.23 0.14 G410701100014 55.2 2.12 0.13 G410701100015 60.1 2.08 0.13 G410701100016 64.6 2.00 0.12 G410701100017 70.3 1.81 0.11 G410701100018 75.2 1.69 0.11 G410701100019 80.2 1.85 0.10 G410701100020 80.7 1.74 0.11 G410701100021 84.9 1.71 0.09 G410701100022 85.6 1.81 0.10 G410701100023 90.5 1.60 0.09 G410701100024 90.9 1.73 0.09 G410701100025 95.0 1.70 0.09 G410701100026 ENDDATA 18 0 G410701100027 ENDSUBENT 26 0 G410701199999 SUBENT G4107012 20240313 20250110 G410701200001 BIB 4 8 G410701200002 REACTION (73-TA-181(G,3N)73-TA-178,,SIG,,BRA) G410701200003 ANALYSIS The total cross section is determined as the sum G410701200004 g and m. G410701200005 DECAY-DATA (73-TA-178-G,9.31MIN,DG,1350.68,0.0118) G410701200006 (73-TA-178-M,2.36HR,DG,426.383,0.97) G410701200007 STATUS (TABLE,,O.S.Deiev+,J,PR/C,106,024617,2022) Tab.II G410701200008 (DEP,G4107010) 181Ta(g,3n)178gTa cross section G410701200009 (DEP,G4107011) 181Ta(g,3n)178mTa cross section G410701200010 ENDBIB 8 0 G410701200011 NOCOMMON 0 0 G410701200012 DATA 3 16 G410701200013 EN-MAX DATA ERR-T G410701200014 MEV MB MB G410701200015 35.1 11.22 0.72 G410701200016 39.9 12.49 45.1 G410701200017 45.1 9.80 50.0 G410701200018 50.0 9.20 55.2 G410701200019 55.2 8.45 60.1 G410701200020 60.1 8.29 64.6 G410701200021 64.6 7.28 70.3 G410701200022 70.3 7.01 75.2 G410701200023 75.2 6.55 80.2 G410701200024 80.2 6.81 80.7 G410701200025 80.7 6.56 84.9 G410701200026 84.9 6.48 85.6 G410701200027 85.6 6.59 90.5 G410701200028 90.5 6.24 90.9 G410701200029 90.9 6.22 95.0 G410701200030 95.0 6.26 0.47 G410701200031 ENDDATA 18 0 G410701200032 ENDSUBENT 31 0 G410701299999 ENDENTRY 12 0 G410799999999