ENTRY M1050 20240806 M132M1050 0 1 SUBENT M1050001 20240806 M132M1050 1 1 BIB 15 35 M1050 1 2 TITLE Evaluation of 180Ta-M formation cross-sections in M1050 1 3 photonuclear reactions. M1050 1 4 AUTHOR (R.V.Avetisyan,A.G.Barseghyan,Yu.A.Gharibyan, M1050 1 5 A.V.Gyurjinyan,H.A.Mkrtchyan,A.Yu.Petrosyan, M1050 1 6 I.A.Kerobyan) M1050 1 7 REFERENCE (J,NP/A,1046,122846,2024) M1050 1 8 #doi:10.1016/j.nuclphysa.2024.122846 M1050 1 9 INSTITUTE (4ARMJER) M1050 1 10 FACILITY (LINAC,4ARMJER) Linear electron accelerator LUE-75 at M1050 1 11 the A.I.Alikhanian National Science Laboratory M1050 1 12 (AANL), Yerevan, Armenia. M1050 1 13 INC-SOURCE (BRST) Bremsstrahlung with end-point energy 20 MeV. M1050 1 14 SAMPLE The natural Ta and Cu (monitor) targets. M1050 1 15 MONITOR (29-CU-65(G,N)29-CU-64,,SIG) M1050 1 16 COMMENT Owing to the different thresholds of the M1050 1 17 65Cu(g,n)64Cu and natTa(g,n)180gTa reactions the M1050 1 18 photon flux obtained from the 65Cu(g,n)64Cu reaction M1050 1 19 was modified using a conversion factor, which M1050 1 20 incorporated the value of the threshold energy of M1050 1 21 each studied reaction. M1050 1 22 DETECTOR (HPGE) High-purity Ge (HPGe); CANBERRA) germanium M1050 1 23 detector with the GENIE 2000 software. M1050 1 24 METHOD (GSPEC) M1050 1 25 ANALYSIS The flux-weighted average cross-section of the M1050 1 26 reaction 181Ta(g,n)180mTa was evaluated using the M1050 1 27 subtraction of experimentally determined M1050 1 28 cross-section of the reaction 181Ta(g,n)180gTa from M1050 1 29 the experimental cross-section of reaction M1050 1 30 181Ta(g,n)180m+gTa estimated using experimental M1050 1 31 cross-section of reaction 181Ta(g,n)180Ta, equations M1050 1 32 (1) and (2) of article. M1050 1 33 ERR-ANALYS (DATA-ERR) No information. M1050 1 34 STATUS (APRVD) By R.V.Avetisyan. M1050 1 35 HISTORY (20240806C) Compiled at the Russia MSU SINP CDFE by M1050 1 36 V.Varlamov. M1050 1 37 ENDBIB 35 0 M1050 1 38 COMMON 1 3 M1050 1 39 EN-MAX M1050 1 40 MEV M1050 1 41 20. M1050 1 42 ENDCOMMON 3 0 M1050 1 43 ENDSUBENT 42 0 M1050 199999 SUBENT M1050002 20240806 M132M1050 2 1 BIB 4 8 M1050 2 2 REACTION (73-TA-181(G,N)73-TA-180-G,,SIG,,BRA) M1050 2 3 Flux-weighted average cross-section. M1050 2 4 DECAY-DATA (73-TA-180-G,8.15HR,DG,93.324,0.451) M1050 2 5 ANALYSIS The flux-weighted average cross-section of the M1050 2 6 181Ta(g,n)180gTa reaction was determined using the M1050 2 7 activation method. M1050 2 8 STATUS (TABLE,,R.V.Avetisyan+,J,NP/A,1046,122846,2024) M1050 2 9 Data from Table 2. M1050 2 10 ENDBIB 8 0 M1050 2 11 NOCOMMON 0 0 M1050 2 12 DATA 2 1 M1050 2 13 DATA DATA-ERR M1050 2 14 MB MB M1050 2 15 135.61 15.49 M1050 2 16 ENDDATA 3 0 M1050 2 17 ENDSUBENT 16 0 M1050 299999 SUBENT M1050003 20240806 M132M1050 3 1 BIB 6 30 M1050 3 2 REACTION 1(73-TA-181(G,N)73-TA-180-M,,SIG,,BRA,DERIV) M1050 3 3 Flux-weighted average cross-section. M1050 3 4 2(73-TA-181(G,N)73-TA-180-M,,SIG,,BRA,DERIV) M1050 3 5 Flux-weighted average cross-section. M1050 3 6 DECAY-DATA (73-TA-180-G,8.15HR,DG,93.324,0.451) M1050 3 7 ANALYSIS The flux-weighted average cross-section for M1050 3 8 180mTa production was determined by M1050 3 9 arithmetically subtracting the 180gTa M1050 3 10 cross-sections from the evaluated M1050 3 11 180m+gTa total flux-weighted average M1050 3 12 cross-sections. M1050 3 13 1Experimental cross-section of reaction M1050 3 14 73-Ta-180(G,N)73-TA-180 was used for M1050 3 15 evaluation. M1050 3 16 2GEANT4 data were used for evaluation. M1050 3 17 ASSUMED (ASSUM,73-TA-181(G,N)73-TA-180,,SIG,,BRA) M1050 3 18 The total number of events with single neutron M1050 3 19 emission correspond to the total cross-section of M1050 3 20 the reaction 181Ta(g,n)180m+gTa. M1050 3 21 The cross-section of reaction 181Ta(g,n)180m+gTa M1050 3 22 was estimated (equations (1) and (2) of article) M1050 3 23 using experimental cross-section of reaction M1050 3 24 181Ta(g,n)180Ta and one calculated using GEANT4 M1050 3 25 code. M1050 3 26 REL-REF 1(R,L0012015,R.Bergere+,J,NP/A,121,463,1968) M1050 3 27 Experimental data for cross-section of reaction M1050 3 28 73-Ta-180(G,N)73-TA-180. M1050 3 29 STATUS (DEP,M1050002) M1050 3 30 (TABLE,,R.V.Avetisyan+,J,NP/A,1046,122846,2024) M1050 3 31 Data from Table 2. M1050 3 32 ENDBIB 30 0 M1050 3 33 NOCOMMON 0 0 M1050 3 34 DATA 8 1 M1050 3 35 DATA 1DATA-ERR 1DATA 2DATA-ERR 2ASSUM 1ASSUM-ERR 1M1050 3 36 ASSUM 2ASSUM-ERR 2 M1050 3 37 MB MB MB MB MB MB M1050 3 38 MB MB M1050 3 39 8.18 0.93 9.12 1.04 143.79 3.62 M1050 3 40 144.73 16.52 M1050 3 41 ENDDATA 6 0 M1050 3 42 ENDSUBENT 41 0 M1050 399999 SUBENT M1050004 20240806 M132M1050 4 1 BIB 3 8 M1050 4 2 REACTION 1(73-TA-181(G,N)73-TA-180-M/G,,SIG/RAT,,BRA,DERIV) M1050 4 3 2(73-TA-181(G,N)73-TA-180-M/G,,SIG/RAT,,BRA,DERIV) M1050 4 4 DECAY-DATA (73-TA-180-G,8.15HR,DG,93.324,0.451) M1050 4 5 (73-TA-180-M,7.15E+15YR) M1050 4 6 STATUS (DEP,M1050002) M1050 4 7 (DEP,M1050003) M1050 4 8 (TABLE,,R.V.Avetisyan+,J,NP/A,1046,122846,2024) M1050 4 9 Data from Table 2. M1050 4 10 ENDBIB 8 0 M1050 4 11 NOCOMMON 0 0 M1050 4 12 DATA 4 1 M1050 4 13 DATA 1DATA-ERR 1DATA 2DATA-ERR 2 M1050 4 14 NO-DIM NO-DIM NO-DIM NO-DIM M1050 4 15 0.0500 0.0085 0.0600 0.0095 M1050 4 16 ENDDATA 3 0 M1050 4 17 ENDSUBENT 16 0 M1050 499999 ENDENTRY 4 0 M105099999999