ENTRY 32882 20250902 3288200000001 SUBENT 32882001 20250902 20260228 3288200100001 BIB 15 46 3288200100002 TITLE Measurement of 54Fe(n,2n)53Fe reaction cross- 3288200100003 sections at 14 MeV energies using activation method 3288200100004 and its relevance for fusion-plasma temperature 3288200100005 diagnosis 3288200100006 AUTHOR (Changlin Lan, Xianlin Yang, Xiaojun Li, Li Feng, 3288200100007 Benchao Lou, Li Jiang, Chao Xu, Jiahao Wang) 3288200100008 INSTITUTE (3CPRLNZ,3CPRNPC) 3288200100009 REFERENCE (J,NIM/B,525,18,2022) 3288200100010 #doi:10.1016/j.nimb.2022.06.003 3288200100011 FACILITY (NGEN,3CPRNPC) K-400 neutron generator 3288200100012 INC-SOURCE (D-T) Neutrons with a yield of about 5E10 n/4PIs. The 3288200100013 beam current of the deuterium was up to 180 uA with 3288200100014 an effective energy of 112 keV. 3288200100015 SAMPLE The iron film of 99.99% purity was tailored into 3288200100016 circular samples with a diameter of 15 mm and a 3288200100017 thickness of 0.1 mm. Each Iron target was sandwiched 3288200100018 between natural niobium foil and zirconium foil with 3288200100019 the same diameter. 3288200100020 DETECTOR (HPGE) A well calibrated GEM-60P coaxial high-purity 3288200100021 germanium detector. The relative efficiency of this 3288200100022 low background gamma-ray spectroscopy was 68% and the 3288200100023 energy resolution was 1.69 keV FWHM at 1.33 MeV. 3288200100024 METHOD (ACTIV) Three natural abundance iron samples 3288200100025 sandwiched with zirconium and niobium foil were 3288200100026 irradiated at three angles for 50 min. Due to the 3288200100027 short half-lives of the product isotopes, 3288200100028 measurements were started within 10 min after 3288200100029 irradiation. 3288200100030 MONITOR (26-FE-56(N,P)25-MN-56,,SIG) 3288200100031 DECAY-MON (25-MN-56,2.5789HR,DG,846.7638,0.9885) 3288200100032 2.5789+-0.0001 h, 98.85+-0.03% 3288200100033 MONIT-REF (,A.A.Filatenkov,R,INDC(CCP)-0460,2016) 3288200100034 ERR-ANALYS (ERR-T) The total uncertainty 3288200100035 (ERR-1,,0.32) Counting statistics of 56Mn 3288200100036 (ERR-2,3.28,7.37) Counting statistics of 53Fe 3288200100037 (ERR-3) Half-life of 53Fe (0.24%) 3288200100038 (ERR-4) Half-life of 56Mn (0.0040%) 3288200100039 (ERR-5) Sample weight (0.10%) 3288200100040 (ERR-6,,3.00) Neutron fluency fluctuation 3288200100041 (ERR-7) Solid angle and intrinsic efficiency of the 3288200100042 gamma detector (3.00%) 3288200100043 (ERR-8) Total correction factor (0.50%) 3288200100044 (ERR-9) Relative gamma-ray intensity of 53Fe (7.14%) 3288200100045 (ERR-10) Isotopic abundance (0.10%) 3288200100046 STATUS (TABLE,,Changlin Lan+,J,NIM/B,525,18,2022) Table 2 3288200100047 HISTORY (20250902C) WEN Lili and WANG Jimin 3288200100048 ENDBIB 46 0 3288200100049 COMMON 7 6 3288200100050 ERR-3 ERR-4 ERR-5 ERR-7 ERR-8 ERR-9 3288200100051 ERR-10 3288200100052 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3288200100053 PER-CENT 3288200100054 0.24 0.0040 0.10 3.00 0.50 7.143288200100055 0.10 3288200100056 ENDCOMMON 6 0 3288200100057 ENDSUBENT 56 0 3288200199999 SUBENT 32882002 20250902 20260228 3288200200001 BIB 2 3 3288200200002 REACTION (26-FE-54(N,2N)26-FE-53,,SIG) 3288200200003 DECAY-DATA (26-FE-53-G,8.51MIN,DG,377.9,0.42) 3288200200004 8.51+-0.02 min, 42+-3% 3288200200005 ENDBIB 3 0 3288200200006 NOCOMMON 0 0 3288200200007 DATA 6 3 3288200200008 EN EN-RSL-HW DATA ERR-T MONIT MONIT-ERR 3288200200009 MEV MEV MB MB MB MB 3288200200010 14.51 0.10 5.40 0.61 109.44 2.19 3288200200011 14.67 0.14 6.96 0.72 107.43 1.99 3288200200012 14.83 0.16 10.30 0.94 105.38 1.90 3288200200013 ENDDATA 5 0 3288200200014 ENDSUBENT 13 0 3288200299999 ENDENTRY 2 0 3288299999999