ENTRY 32876 20251124 3287600000001 SUBENT 32876001 20251124 20260228 3287600100001 BIB 10 36 3287600100002 TITLE Cross section measurement for the 14N(n,a0,1)11B 3287600100003 reactions in the 4.5 - 11.5 MeV neutron energy region 3287600100004 AUTHOR (Yiwei Hu, Yu.M.Gledenov, Zengqi Cui, Jie Liu, 3287600100005 Haofan Bai, Cong Xia, Zhenpeng Chen, Zepeng Wu, 3287600100006 Wenkai Ren, Wentiancao, Tieshuan Fan, Guohui Zhang, 3287600100007 E.Sansarbayar, G.Khuukhenkhuu, L.Krupa, I.Chuprakov, 3287600100008 Qiwen Fan, Xichao Ruan, Hanxiong Huang, Jie Ren, 3287600100009 Yuan Gao, Xiangjun Yang) 3287600100010 INSTITUTE (3CPRBJG,4ZZZDUB,3CPRTSI,3CPRNIX,3MGLNUM,3CZRCTI, 3287600100011 4KASKAZ,3CPRAEP) 3287600100012 (3CPRCPR) Naval University of Engineering, Wuhan 3287600100013 REFERENCE (J,EPJ/A,60,51,2024) 3287600100014 #doi:10.1140/epja/s10050-024-01268-9 3287600100015 (J,CST,56,825,2022) 3287600100016 #doi:10.7538/yzk.2022.youxian.0110 3287600100017 INC-SOURCE (D-D) 3287600100018 SAMPLE Two C3H6N6 (melamine) samples, each with a diameter 3287600100019 of 41.29 mm, were back-to-back mounted. The 14N 3287600100020 nuclei number of C3H6N6#I was 9.86 +- 0.03 E19, and 3287600100021 C3H6N6#II was 9.83 +- 0.03 E19. 3287600100022 DETECTOR (IOCH) The 238U3O8#I sample with 99.999% enrichment was3287600100023 glued on the center of the shield for monitoring the 3287600100024 neutron fluence. The diameter of the 238U3O8 sample is3287600100025 45.0 mm, and the nuclei number of 238U was 2.081 +- 3287600100026 0.020 E19. 3287600100027 (SCIN) EJ309 was used to measure the neutron spectrum 3287600100028 by the recoil proton spectroscopy method. 3287600100029 METHOD (PHD) The 238U3O8#II sample with 43.0 mm in diameter 3287600100030 and 1.898 +- 0.018 E19 in nuclei number (NU) of 238U 3287600100031 was mounted on the sample position 2# of the sample 3287600100032 changer at the cathode. It was used to measure the 3287600100033 average neutron fluence through the solid samples. 3287600100034 Back- to-back tantalum foils 0.1 mm in thickness were 3287600100035 used for background measurement. 3287600100036 ERR-ANALYS (ERR-T) The total uncertainty 3287600100037 HISTORY (20251124C) Compiled by Xi Tao (CNDC) 3287600100038 ENDBIB 36 0 3287600100039 NOCOMMON 0 0 3287600100040 ENDSUBENT 39 0 3287600199999 SUBENT 32876002 20251124 20260228 3287600200001 BIB 5 28 3287600200002 REACTION (7-N-14(N,A)5-B-11,PAR,SIG) 3287600200003 FACILITY (VDG,3CPRBJG) 4.5 MV Van de Graaff accelerator at PKU 3287600200004 between 4.5 and 5.5 MeV 3287600200005 SAMPLE Working gas, the NMRV sample is 2.700 +- 0.033 E21 - 3287600200006 2.762 +- 0.034 E21 at 4.5 - 5.5 MeV 3287600200007 ERR-ANALYS (MONIT1-ERR,0.7,0.8) the standard cross section of 3287600200008 the 238U(n,f) reaction 3287600200009 (ERR-1) The neutron fluence ratio of the 238U3O8 3287600200010 sample to MRV(main reaction volume) 3287600200011 (ERR-2) Number of 238U 3287600200012 (ERR-3) Number of the 14N nuclei in MRV 3287600200013 (ERR-4,2.4,3.2) Fission counts of the fission spectrum 3287600200014 (ERR-5) Detection efficiency 3287600200015 (ERR-6,1.2,2.1) Alpha detection efficiency within the 3287600200016 thresholds of the anode spectra 3287600200017 (ERR-7,0.5,1.7) The detection efficiency in terms of 3287600200018 distance 3287600200019 (ERR-8,0.1,2.1) Correction factor 3287600200020 (ERR-9,1.0,1.4) Count of alpha events 3287600200021 (ERR-10,1.9,10.1) Correction coefficient of the alpha 3287600200022 and fission events 3287600200023 STATUS (TABLE,,Yiwei Hu+,J,EPJ/A,60,51,2024) Table 2 3287600200024 (COREL,32876003) 14N(n,a1) 11B cross sections 3287600200025 measured at PKU 3287600200026 (COREL,32876004) 14N(n,a0) 11B cross sections 3287600200027 measured at CIAE 3287600200028 (COREL,32876005) 14N(n,a1) 11B cross sections 3287600200029 measured at CIAE 3287600200030 ENDBIB 28 0 3287600200031 COMMON 5 3 3287600200032 E-LVL ERR-1 ERR-2 ERR-3 ERR-5 3287600200033 KEV PER-CENT PER-CENT PER-CENT PER-CENT 3287600200034 0. 1.0 1.0 1.2 1.7 3287600200035 ENDCOMMON 3 0 3287600200036 DATA 4 10 3287600200037 EN EN-ERR DATA ERR-T 3287600200038 MEV MEV MB MB 3287600200039 4.53 0.05 309.9 18.6 3287600200040 4.59 0.05 323.7 24.2 3287600200041 4.66 0.05 267.6 15.7 3287600200042 4.78 0.04 205.6 16.5 3287600200043 4.88 0.04 184.6 13.6 3287600200044 4.96 0.03 199.4 14.8 3287600200045 5.06 0.03 242.9 18.3 3287600200046 5.15 0.04 213.3 14.2 3287600200047 5.31 0.03 111.9 8.6 3287600200048 5.51 0.03 66.5 7.8 3287600200049 ENDDATA 12 0 3287600200050 ENDSUBENT 49 0 3287600299999 SUBENT 32876003 20251124 20260228 3287600300001 BIB 5 30 3287600300002 REACTION (7-N-14(N,A)5-B-11,PAR,SIG) 3287600300003 FACILITY (VDG,3CPRBJG) 4.5 MV Van de Graaff accelerator at PKU 3287600300004 between 4.5 and 5.5 MeV 3287600300005 SAMPLE Working gas, the NMRV sample is 2.700 +- 0.033 E21 - 3287600300006 2.762 +- 0.034 E21 at 4.5 - 5.5 MeV 3287600300007 ERR-ANALYS (MONIT1-ERR,0.7,0.8) the standard cross section of 3287600300008 the 238U(n,f) reaction 3287600300009 (ERR-1) The neutron fluence ratio of the 238U3O8 3287600300010 sample to MRV(main reaction volume) 3287600300011 (ERR-2) Number of 238U 3287600300012 (ERR-3) Number of the 14N nuclei in MRV 3287600300013 (ERR-4,2.4,3.2) Fission counts of the fission spectrum 3287600300014 (ERR-5) Detection efficiency 3287600300015 (ERR-6,0.9,2.6) Alpha detection efficiency within the 3287600300016 thresholds of the anode spectra 3287600300017 (ERR-7,0.2,1.3) The detection efficiency in terms of 3287600300018 distance 3287600300019 (ERR-8,0.1,2.1) Correction factor 3287600300020 (ERR-9,1.7,2.2) Count of alpha events 3287600300021 (ERR-10,1.1,3.2) Correction coefficient of the alpha 3287600300022 and fission events 3287600300023 (ERR-11,10.4,10.7) Correction coefficient for 3287600300024 background interference 3287600300025 STATUS (TABLE,,Yiwei Hu+,J,EPJ/A,60,51,2024) Table 2 3287600300026 (COREL,32876002) 14N(n,a0) 11B cross sections 3287600300027 measured at PKU 3287600300028 (COREL,32876004) 14N(n,a0) 11B cross sections 3287600300029 measured at CIAE 3287600300030 (COREL,32876005) 14N(n,a1) 11B cross sections 3287600300031 measured at CIAE 3287600300032 ENDBIB 30 0 3287600300033 COMMON 5 3 3287600300034 E-LVL ERR-1 ERR-2 ERR-3 ERR-5 3287600300035 MEV PER-CENT PER-CENT PER-CENT PER-CENT 3287600300036 2.125 1.0 1.0 1.2 1.7 3287600300037 ENDCOMMON 3 0 3287600300038 DATA 4 10 3287600300039 EN EN-ERR DATA ERR-T 3287600300040 MEV MEV MB MB 3287600300041 4.53 0.05 32.4 3.9 3287600300042 4.59 0.05 34.0 4.3 3287600300043 4.66 0.05 36.4 4.4 3287600300044 4.78 0.04 40.3 5.1 3287600300045 4.88 0.04 43.5 5.4 3287600300046 4.96 0.03 43.9 5.4 3287600300047 5.06 0.03 51.4 6.3 3287600300048 5.15 0.04 51.5 6.2 3287600300049 5.31 0.03 56.5 6.9 3287600300050 5.51 0.03 54.5 6.9 3287600300051 ENDDATA 12 0 3287600300052 ENDSUBENT 51 0 3287600399999 SUBENT 32876004 20251124 20260228 3287600400001 BIB 5 30 3287600400002 REACTION (7-N-14(N,A)5-B-11,PAR,SIG) 3287600400003 FACILITY (VDGT,3CPRAEP) HI-13 tandem accelerator at CIAE 3287600400004 between 7.1 and 11.5 MeV 3287600400005 SAMPLE Working gas, the NMRV sample is 2.700 +- 0.033 E21 - 3287600400006 2.762 +- 0.034 E21 at 4.5 - 5.5 MeV 3287600400007 ERR-ANALYS (MONIT1-ERR,0.8,1.1) the standard cross section of 3287600400008 the 238U(n,f) reaction 3287600400009 (ERR-1) The neutron fluence ratio of the 238U3O8 3287600400010 sample to MRV(main reaction volume) 3287600400011 (ERR-2) Number of 238U 3287600400012 (ERR-3) Number of the 14N nuclei in MRV 3287600400013 (ERR-4,0.1,0.7) Fission counts of the fission spectrum 3287600400014 (ERR-5,1.7,2.6) Detection efficiency 3287600400015 (ERR-6,4.8,15.5) Alpha detection efficiency within 3287600400016 the thresholds of the anode spectra 3287600400017 (ERR-7,0.1,1.4) The detection efficiency in terms of 3287600400018 distance 3287600400019 (ERR-8,0.1,1.6) Correction factor 3287600400020 (ERR-9,0.3,1.2) Count of alpha events 3287600400021 (ERR-10,0.7,3.2) Correction coefficient of the alpha 3287600400022 and fission events 3287600400023 (ERR-11,0.6,7.1) Correction coefficient for 3287600400024 background interference 3287600400025 STATUS (TABLE,,Yiwei Hu+,J,EPJ/A,60,51,2024) Table 2 3287600400026 (COREL,32876002) 14N(n,a0) 11B cross sections 3287600400027 measured at PKU 3287600400028 (COREL,32876003) 14N(n,a1) 11B cross sections 3287600400029 measured at PKU 3287600400030 (COREL,32876005) 14N(n,a1) 11B cross sections 3287600400031 measured at CIAE 3287600400032 ENDBIB 30 0 3287600400033 COMMON 4 3 3287600400034 E-LVL ERR-1 ERR-2 ERR-3 3287600400035 MEV PER-CENT PER-CENT PER-CENT 3287600400036 0. 1.0 1.0 1.0 3287600400037 ENDCOMMON 3 0 3287600400038 DATA 4 14 3287600400039 EN EN-ERR DATA ERR-T 3287600400040 MEV MEV MB MB 3287600400041 7.09 0.09 62.6 4.1 3287600400042 7.38 0.08 66.9 5.6 3287600400043 7.58 0.08 50.8 4.6 3287600400044 7.83 0.08 42.6 4.0 3287600400045 8.11 0.07 55.9 5.7 3287600400046 8.26 0.08 43.3 3.9 3287600400047 8.56 0.07 33.1 4.0 3287600400048 8.97 0.08 31.5 3.0 3287600400049 9.28 0.07 33.7 3.8 3287600400050 9.71 0.06 36.1 4.5 3287600400051 10.25 0.07 44.6 5.5 3287600400052 10.57 0.06 32.9 4.3 3287600400053 10.93 0.07 44.3 5.9 3287600400054 11.48 0.05 28.0 4.6 3287600400055 ENDDATA 16 0 3287600400056 ENDSUBENT 55 0 3287600499999 SUBENT 32876005 20251124 20260228 3287600500001 BIB 5 30 3287600500002 REACTION (7-N-14(N,A)5-B-11,PAR,SIG) 3287600500003 FACILITY (VDGT,3CPRAEP) HI-13 tandem accelerator at CIAE 3287600500004 between 7.1 and 11.5 MeV 3287600500005 SAMPLE Working gas, the NMRV sample is 2.700 +- 0.033 E21 - 3287600500006 2.762 +- 0.034 E21 at 4.5 - 5.5 MeV 3287600500007 ERR-ANALYS (MONIT1-ERR,0.8,1.1) the standard cross section of 3287600500008 the 238U(n,f) reaction 3287600500009 (ERR-1) The neutron fluence ratio of the 238U3O8 3287600500010 sample to MRV(main reaction volume) 3287600500011 (ERR-2) Number of 238U 3287600500012 (ERR-3) Number of the 14N nuclei in MRV 3287600500013 (ERR-4,0.1,0.7) Fission counts of the fission spectrum 3287600500014 (ERR-5,1.7,2.6) Detection efficiency 3287600500015 (ERR-6,2.2,10.1) Alpha detection efficiency within 3287600500016 the thresholds of the anode spectra 3287600500017 (ERR-7,0.1,1.5) The detection efficiency in terms of 3287600500018 distance 3287600500019 (ERR-8,0.4,3.6) Correction factor 3287600500020 (ERR-9,0.4,1.1) Count of alpha events 3287600500021 (ERR-10,0.7,3.2) Correction coefficient of the alpha 3287600500022 and fission events 3287600500023 (ERR-11,1.9,13.0) Correction coefficient for 3287600500024 background interference 3287600500025 STATUS (TABLE,,Yiwei Hu+,J,EPJ/A,60,51,2024) Table 2 3287600500026 (COREL,32876002) 14N(n,a0) 11B cross sections 3287600500027 measured at PKU 3287600500028 (COREL,32876003) 14N(n,a1) 11B cross sections 3287600500029 measured at PKU 3287600500030 (COREL,32876004) 14N(n,a0) 11B cross sections 3287600500031 measured at CIAE 3287600500032 ENDBIB 30 0 3287600500033 COMMON 4 3 3287600500034 E-LVL ERR-1 ERR-2 ERR-3 3287600500035 MEV PER-CENT PER-CENT PER-CENT 3287600500036 2.125 1.0 1.0 1.0 3287600500037 ENDCOMMON 3 0 3287600500038 DATA 4 14 3287600500039 EN EN-ERR DATA ERR-T 3287600500040 MEV MEV MB MB 3287600500041 7.09 0.09 34.5 4.2 3287600500042 7.38 0.08 49.7 4.1 3287600500043 7.58 0.08 48.1 3.3 3287600500044 7.83 0.08 46.7 2.9 3287600500045 8.11 0.07 30.3 3.7 3287600500046 8.26 0.08 23.5 3.3 3287600500047 8.56 0.07 21.5 2.8 3287600500048 8.97 0.08 21.4 2.2 3287600500049 9.28 0.07 22.3 2.6 3287600500050 9.71 0.06 26.7 2.7 3287600500051 10.25 0.07 27.3 2.6 3287600500052 10.57 0.06 20.6 1.8 3287600500053 10.93 0.07 22.8 2.5 3287600500054 11.48 0.05 15.2 2.5 3287600500055 ENDDATA 16 0 3287600500056 ENDSUBENT 55 0 3287600599999 ENDENTRY 5 0 3287699999999