ENTRY 30856 20230711 3085600000001 SUBENT 30856001 20230711 20260228 3085600100001 BIB 18 43 3085600100002 TITLE Measurement of cross sections of Zr-isotopes with the 3085600100003 fast neutrons based on the 9Be(p,n) reaction 3085600100004 AUTHOR (H.Naik, G.N.Kim, K.Kim, T.H.Nguyen, M.Nadeem, M.Sahid)3085600100005 INSTITUTE (3INDTRM,3KORKNU) 3085600100006 REFERENCE (J,EPJ/A,57,267,2021) 3085600100007 FACILITY (CYCLO,3KORKRM) MC-50 cyclotron (KIRAMS) 3085600100008 INC-SOURCE (P-BE) The neutron beam was produced from the 9Be(p,n) 3085600100009 reaction by impinging 25, 35 and 45 MeV proton beams 3085600100010 on a 5 mm thick Be target. 3085600100011 INC-SPECT The neutron spectrum was characterized by MCNPX 2.6.0. 3085600100012 SAMPLE natural Zr foil 3085600100013 - purity: >99.99% 3085600100014 - thickness: 0.05 mm 3085600100015 - Size: 0.8-1 cm x 1cm 3085600100016 - weight: 71.6, 103.8, 75.3 mg 3085600100017 METHOD (ACTIV) Irradiation for 1 hour 3085600100018 (GSPEC) Started after the cooling time (1.86-2.78 h) 3085600100019 DETECTOR (HPGE) Energy resolution and relative efficiency of 3085600100020 the detector at the 1332.5 keV gamma-ray of 60Co are 3085600100021 1.8 keV and 20% relative to a 7.6 cm diameter x 7.6 cm3085600100022 length NaI(Tl) 3085600100023 MONITOR Al foil (thickness: 0.025 mm) 3085600100024 - weight: 40.6, 64.4, 38.7 mg 3085600100025 The neutron fluxes from the reaction threshold to the 3085600100026 maximum neutron energies was calculated with the MCNPX3085600100027 code. 3085600100028 The experimental data used to obtain the flux-weighted 3085600100029 average cross-section for Al(n,a)24Na reaction for 3085600100030 the neutron energies of 25, 35 and 45 MeV are 40.78, 3085600100031 49.96 and 41.28 mb. 3085600100032 (13-AL-27(N,X)11-NA-24,,SIG) 3085600100033 DECAY-MON (11-NA-24,14.997HR,DG,1368.63,0.999936) 3085600100034 MONIT-REF (,E.Browne+,B,BROWNE,,,1986) 3085600100035 REL-REF (R,,E.Browne+,B,BROWNE,,,1986) Decay data 3085600100036 MISC-COL (MISC) Correction factor to obtain the neutron flux 3085600100037 ERR-ANALYS (ERR-T) Total uncertainty (6.26-13.05%)3085600100038 (ERR-S,2.,10.) counting statistics (2-10%)3085600100039 (ERR-1) irradiation time (~0.5%)3085600100040 (ERR-2,3.,4.) detection efficiency calibration (~3-4%)3085600100041 (ERR-3,5.,7.) neutron flux (5-7%)3085600100042 (ERR-4) half-life and gamma-ray intensity (~1%)3085600100043 STATUS (APRVD) Approved by G.N.Kim (2025-07-12) 3085600100044 HISTORY (20230711C) S.C.Yang 3085600100045 ENDBIB 43 0 3085600100046 COMMON 2 3 3085600100047 ERR-1 ERR-4 3085600100048 PER-CENT PER-CENT 3085600100049 0.5 1. 3085600100050 ENDCOMMON 3 0 3085600100051 ENDSUBENT 50 0 3085600199999 SUBENT 30856002 20230711 20260228 3085600200001 BIB 4 5 3085600200002 REACTION (40-ZR-96(N,2N)40-ZR-95,,SIG,,SPA) 3085600200003 DECAY-DATA (40-ZR-95,64.032D,DG,724.19,0.4427, 3085600200004 DG,756.73,0.5438) 3085600200005 SAMPLE (40-ZR-96,NAT=0.0280) 3085600200006 STATUS (TABLE,,H.Naik+,J,EPJ/A,57,267,2021) Table 4 3085600200007 ENDBIB 5 0 3085600200008 NOCOMMON 0 0 3085600200009 DATA 4 3 3085600200010 EN-MEAN DATA ERR-T MISC 3085600200011 MEV MB MB NO-DIM 3085600200012 13.80 1489.3 196.4 0.651 3085600200013 18.91 960.7 75.0 0.796 3085600200014 25.81 446.4 92.9 0.810 3085600200015 ENDDATA 5 0 3085600200016 ENDSUBENT 15 0 3085600299999 SUBENT 30856003 20230711 20260228 3085600300001 BIB 5 6 3085600300002 REACTION (40-ZR-90(N,2N)40-ZR-89-G,M+,SIG,,SPA) 3085600300003 DECAY-DATA (40-ZR-89-G,78.41HR,DG,909.15,0.9904) 3085600300004 SAMPLE (40-ZR-90,NAT=0.5145) 3085600300005 COMMENT By the author (2025-06-09): the other Zr target 3085600300006 isotopes have negligible contribution. 3085600300007 STATUS (TABLE,,H.Naik+,J,EPJ/A,57,267,2021) Table 4 3085600300008 ENDBIB 6 0 3085600300009 NOCOMMON 0 0 3085600300010 DATA 4 3 3085600300011 EN-MEAN DATA ERR-T MISC 3085600300012 MEV MB MB NO-DIM 3085600300013 16.11 983.3 51.3 0.401 3085600300014 20.92 1190.7 80.0 0.587 3085600300015 28.74 642.8 33.2 0.665 3085600300016 ENDDATA 5 0 3085600300017 ENDSUBENT 16 0 3085600399999 SUBENT 30856004 20230711 20260228 3085600400001 BIB 5 6 3085600400002 REACTION (40-ZR-90(N,3N)40-ZR-88,,SIG,,SPA) 3085600400003 DECAY-DATA (40-ZR-88,83.4D,DG,392.87,0.9729) 3085600400004 SAMPLE (40-ZR-90,NAT=0.5145) 3085600400005 COMMENT By the author (2025-06-09): the other Zr target 3085600400006 isotopes have negligible contribution. 3085600400007 STATUS (TABLE,,H.Naik+,J,EPJ/A,57,267,2021) Table 4 3085600400008 ENDBIB 6 0 3085600400009 NOCOMMON 0 0 3085600400010 DATA 4 2 3085600400011 EN-MEAN DATA ERR-T MISC 3085600400012 MEV MB MB NO-DIM 3085600400013 25.37 118.0 12.6 0.287 3085600400014 31.33 503.2 38.1 0.536 3085600400015 ENDDATA 4 0 3085600400016 ENDSUBENT 15 0 3085600499999 ENDENTRY 4 0 3085699999999