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109Ag位于慢速中子俘获过程路径上, 且79%由快速中子俘获过程产生. 同时, 银铟镉(Ag-In-Cd)控制棒中109Ag的质量比为38.56%, 109Ag的中子俘获反应截面数据在核能和核天体物理学应用中非常重要. 本工作利用中国散裂中子源的白光中子源开展了109Ag同位素靶的中子俘获截面实验, 结合中子飞行时间法和脉冲高度权重技术等方法获得了1—500 eV能区的109Ag中子俘获截面. 使用基于R矩阵理论的SAMMY程序提取了109Ag的共振能量、中子共振宽度和辐射共振宽度参数, 实验所提取的中子共振参数值在139.4 eV处符合JENDL-4.0库收录的结果, 在169.9 eV处和328.1 eV处符合JEFF-4.0库收录的结果, 在259.3 eV处符合CENDL-3.2库收录的结果. 本文数据集可在
https://www.doi.org/10.57760/sciencedb.j00213.00197 中访问获取.109Ag is located on the pathway of the slow neutron capture process, and 79% of 109Ag is generated through a rapid neutron capture process. Meanwhile, the mass fraction of 109Ag in Ag-In-Cd control rods is 38.56%. Therefore, the neutron capture cross-section of 109Ag is crucial for both nuclear energy and nuclear astrophysics applications. In this work, a neutron capture cross-section is measured using a 109Ag isotope target at the Back-n white neutron facility of the China Spallation Neutron Source (CSNS). Neutron capture cross-sections in the 1–500 eV energy region are obtained by combining the time-of-flight method and the pulse-height weighting technique. The 109Ag resonance energy, neutron resonance width, and gamma resonance width parameters are extracted using the SAMMY code, which is based on R-matrix theory. The neutron resonance parameters extracted from this study at 139.4 eV are in agreement with the values evaluated in the JENDL-4.0, while the parameters at 169.9 eV and 328.1 eV are in agreement with the values evaluated in the JEFF-4.0. Additionally, the result at 259.3 eV is consistent with the value evaluated in the CENDL-3.2. The datasets presented in this paper are openly available at https://www.doi.org/10.57760/sciencedb.j00213.00197 . -
图 3 Back-n设施中的C6D6探测器
Fig. 3. Photograph of the C6D6 detector in the Back-n facility of CSNS.
图 5 109Ag实验靶加吸收片和不加吸收片的对比以及本底能谱
Fig. 5. The 109Ag target with and without filters and background energy spectrum.
图 6 C6D6效率 (a) 原始效率; (b) 加权后的探测效率; (c) 加权效率和$ \gamma $射线能量的比值
Fig. 6. The C6D6 efficiency: (a) Original efficiency; (b) weighted efficiency; (c) the ratio between the weighted efficiency and the γ-ray energy.
图 9 实验提取的俘获核K与各主流评价库的对比
Fig. 9. Comparison between the capture Kernels K from the major evaluations and the ones from this work.
表 1 实验所用靶材信息
Table 1. Information of experimental targets.
实验靶 纯度/% 直径/mm 靶厚/mm 质量/g 109Ag >99% 30.00±0.02 0.100±0.005 0.745±0.005 197Au >99% 30.00±0.02 0.100±0.005 1.423±0.005 natC — 30.00±0.02 0.100±0.005 0.160±0.005 natPb — 30.00±0.02 0.100±0.005 0.787±0.005 
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表 2 实验测量中不确定度来源
Table 2. The sources of uncertainty in experimental measurement.
不确定度来源 组成 不确定度/% 实验条件 加速器功率 <1.5 中子能谱(<0.15 MeV) <8.0 靶参数 <1.5 数据分析 归一化 <2.0 PHWT方法 <3.0 双束团解谱 <2.0 本底扣除 <2.0 数理统计 统计误差 <0.7
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表 3 实验提取的109Ag的共振参数与各主流评价库对比
Table 3. Comparison of the 109Ag resonance parameters obtained from experiment and the major evaluated libraries.
$ {E}_{\text{n}} $/eV $ {{\varGamma}}_{\gamma } $/meV $ {{\varGamma}}_{\text{n}} $/meV This Work DB#1/#5 DB#2 DB#3 DB#4 This Work DB#1/#5 DB#2 DB#3 DB#4 5.1 131.11±8.35 130.00 136.00 136.00 135.30 10.02±0.77 12.73 12.70 12.67 13.24 30.6 135.53±3.89 130.00 128.00 130.00 125.50 4.62±0.12 7.33 7.30 7.20 7.38 40.4 151.81±5.30 131.00 131.00 130.00 139.70 2.57±0.07 5.33 6.20 5.87 4.76 55.9 146.22±5.78 139.00 139.00 130.00 130.60 14.94±0.50 37.20 36.80 21.60 36.09 71.2 111.70±5.45 120.00 117.00 130.00 130.00 12.37±0.49 26.67 26.40 25.20 27.49 88.1 149.92±8.18 130.00 131.00 130.00 127.90 2.84±0.11 6.40 6.20 5.47 5.91 133.8 108.54±2.15 120.00 120.00 130.00 130.00 274.05±4.84 80.00 82.00 92.13 85.86 139.4 137.93±12.29 133.00 133.00 130.00 130.00 2.02±0.09 6.00 5.00 2.00 1.73 169.9 133.81±11.21 163.00 130.00 130.00 130.00 1.05±0.04 0.24 0.29 1.44 1.34 173.0 134.96±8.34 140.00 130.00 130.00 130.00 17.42±0.55 44.93 50.00 44.93 46.48 209.0 112.91±9.51 133.00 123.00 130.00 130.00 10.02±1.28 24.00 24.40 24.80 26.36 252.4 123.58±11.90 124.00 130.00 130.00 130.00 6.28±0.54 5.87 11.80 5.87 5.87 259.3 131.94±13.07 111.00 130.00 130.00 130.00 5.03±0.50 13.60 5.20 13.60 7.92 272.9 137.47±13.60 141.00 130.00 130.00 130.00 1.95±0.19 2.00 4.00 2.00 1.82 291.1 132.99±13.10 140.00 140.00 130.00 130.00 12.60±1.11 33.20 34.20 11.07 10.92 293.2 129.80±12.98 163.00 130.00 130.00 130.00 1.67±0.15 0.40 0.68 0.40 0.40 300.6 130.38±12.94 141.00 130.00 130.00 130.00 1.66±0.16 6.00 0.93 6.00 4.27 317.7 102.90±8.91 141.00 124.00 130.00 130.00 121.70±11.33 178.67 158.00 200.00 153.70 328.1 134.04±12.99 163.00 130.00 130.00 130.00 6.82±0.63 0.87 15.40 0.87 6.00 387.3 153.07±13.65 147.00 147.00 130.00 130.00 44.91±4.19 43.33 43.10 55.33 43.02 398.2 140.83±13.94 140.00 140.00 130.00 130.00 22.48±1.96 22.00 22.70 13.33 20.77 405.6 115.84±13.20 146.00 143.00 130.00 130.00 182.11±18.87 200.00 190.00 168.00 210.60 428.9 126.15±12.41 141.00 130.00 130.00 130.00 19.06±1.83 38.00 37.40 18.27 13.32 470.0 120.00±10.92 141.00 134.00 130.00 130.00 129.26±11.96 138.00 148.00 138.00 139.30 487.4 134.34±13.15 141.00 130.00 130.00 130.00 41.76±4.15 45.40 46.80 22.80 15.77
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[1] Battino U, Pignatari M, Tattersall A, Denissenkov P, Herwig F 2022 Universe 8 170
Google Scholar
[2] Käppeler F, Gallino R, Bisterzo S, Aoki W 2011 Rev. Mod. Phys. 83 157
Google Scholar
[3] Thielemann F K, Arcones A, Käppeli R, Liebendörfer M, Rauscher T, Winteler C, Fröhlich C, Dillmann I, Fischer T, Martinez-Pinedo G, Langanke K, Farouqi K, Kratz K-L, Panov I, Korneev I K 2011 Prog. Part. Nucl. Phys. 66 346
Google Scholar
[4] Arnould M, Katsuma M 2007 International Conference on Nuclear Data for Science and Technology Nice, France, April 22–27, 2007 p5
[5] Arlandini C, Käppeler F, Wisshak K, Gallino R, Lugaro M, Busso M, Straniero O 1999 Astron. J. 525 886
Google Scholar
[6] Lin M, Cheng M S, Dai Z M 2020 Nucl. Sci. Tech. 31 33
Google Scholar
[7] Qayyum F, Ali M R, Zahur A, Khan R 2019 Nucl. Sci. Tech. 30 63
Google Scholar
[8] Ge Z G, Xu R R, Wu H C, Zhang Y, Chen G C, Jin Y L, Shu N C, Chen Y J, Tao X, Tian Y, Liu P, Qian J, Wang J M, Zhang H Y, Liu L L, Huang X L 2020 EPJ Web Conf. 239 09001
Google Scholar
[9] Brown D A, Chadwick M B, Capote R, Kahler A C, Trkov A, Herman M W, Sonzogni A A, Danon Y, Carlson A D, Dunn M, et al. 2018 Nucl. Data Sheets. 148 1
Google Scholar
[10] Shibata K, Iwamoto O, Nakagawa T, Iwamoto N, Ichihara A, Kunieda S, Kunieda S, Chiba S, Furutaka K, Otuka N, Ohsawa T, Murata T, Matsunobu H, Zukeran A, Kamada S, Katakura J I 2011 Nucl. Sci. Technol. 48 1
[11] Hursin M, Xia F, Rochman D 2025 Nucl. Sci. Eng. 199 1987
Google Scholar
[12] Blokhin A I, Gai E V, Ignatyuk A V, Koba I I, Manokhin V N, Pronyaev V G, 2016 Yad. Reak. Kon. 2 62
[13] Otuka N, Dupont E, Semkova V, Pritchenko B, Blokhin A I, Aikawa M, Babykina S, Bossant M, Chen G, Dunaeva S, et al. 2014 Nucl. Data Sheets. 120 272
Google Scholar
[14] Šalamon L, Geslot B, Heyse J, Kopecky S, Leconte P, Noguere G, Paradela C, Schillebeeckx P, Snoj L 2019 Nucl. Instrum. Methods Phys. Res. B 446 19
Google Scholar
[15] Li X X, Liu L X, Jiang W, Ren J, Wang H W, Fan G T, Wang D X, Zhang S Y L T, Yang G L, Li K X, An Z D, He X J, Luo S X, Cao G L, Song L, Zhang Y, Hu X R, Hao Z R, Kuang P, Jiang B, Wang X H, Hu J F, Liu Y D, Ma C W, Wang Y T, Su J, Zhang H N, Feng C W, Liu W B, Su W Q, Jin S, Chen K J 2022 Chin. Phys. B 31 038204
Google Scholar
[16] Chen H, Wang X L 2016 Nat. Mater. 15 689
Google Scholar
[17] Tang J Y, An Q, Bai J B, Bao J, Bao Y, Cao P, Chen H L, Chen Q P, Chen Y H, Chen Z, et al. 2021 Nucl. Sci. Tech. 32 11
Google Scholar
[18] Larson N M 2008 Oak Ridge National Laboratory Technical Report No. ORNL/TM-9179/R8
[19] Zhang L Y, Jing H T, Tang J Y, Wang X Q 2016 Rad. Phys. Chem. 127 133
Google Scholar
[20] 王德鑫, 张苏雅拉吐, 蒋伟, 任杰, 王金成, 唐靖宇, 阮锡超, 王宏伟, 陈志强, 黄美容, 唐鑫, 胡新荣, 李鑫祥, 刘龙祥, 刘丙岩, 孙慧, 张岳, 郝子锐, 宋娜, 李雪, 牛丹丹, 利国, 蒙古夫 2022 71 072901
Google Scholar
Wang D X, Zhang S Y L T, Jiang W, Ren J, Wang J C, Tang J Y, Ruan X C, Wang H W, Chen Z Q, Huang M R, Tang X, Hu X R, Li X X, Liu L X, Liu B Y, Sun H, Zhang Y, Hao Z R, Song N, Li X, Niu D D, Li G, Meng G F 2022 Acta. Phys. Sin. 71 072901
Google Scholar
[21] Li X X, Liu L X, Jiang W, Chen Y J, Ren J, Wang H W, Fan G T, Luo W, Feng S, Xie W, et al. 2025 Nucl. Sci. Tech. 36 178
Google Scholar
[22] Wang J C, Ren J, Jiang W, Ruan X C, Liu Y Y, Yang H L, Xu K Z, Pan X Y, Sun Q, Bao J, et al. 2024 Nucl. Sci. Tech. 35 164
Google Scholar
[23] Jiang B, Han J L, Jiang W, Hu J F, Wang X H, Chen J G, Cai X Z 2021 Nucl. Instrum. Methods Phys. Res. A 1013 165677
Google Scholar
[24] Liu X Y, Yang Y W, Liu R, Wen J, Wen Z W, Han Z J, Ren Z Z, An Q, Bai H Y, Bao J, et al. 2019 Nucl. Sci. Tech. 30 139
Google Scholar
[25] Yi H, Wang T F, Li Y, Ruan X C, Ren J, Chen Y H, Li Q, Wen J, Tang J Y, An Q, et al. 2020 Jour. Instrum. 15 P03026
Google Scholar
[26] Carlson A D, Pronyaev V G, Smith D L, Smith D L, Larson N M, Chen Z P, Hale G M, Hambsch F J, Gai E V, Oh S Y, Badikov S A, Kawano T, Hofmann H M, Vonach H, Tagesen S 2009 Nucl. Data Sheets. 110 3215
Google Scholar
[27] Li X X, Liu L X, Jiang W, Ren J, Wang H W, Fan G T, Cao G L, Zhang Y, Hu X R, Liu H X, Wang J W, Zhang S Y, Ma X, Ma C W, Wang Y T, An Z D, He J J, Su J, Zhang L Y, Yang Y X 2021 Phy. Rev. C 104 054302
[28] Ren J, Ruan X, Jiang W, Bao J, Luan G, Zhang Q W, Huang H X, Nie Y B, Ge Z G, An Q, et al. 2021 Nucl. Instrum. Methods Phys. Res. A 985 164703
Google Scholar
[29] 任杰, 阮锡超, 陈永浩, 蒋伟, 鲍杰, 栾广源, 张奇诗, 黄翰雄, 王朝辉, 安琪, 等 2020 69 233
Ren J, Ruan X C, Chen Y H, Jiang W, Bao J, Luan G Y, Zhang Q S, Huang H X, Wang Z H, An Q, et al. 2020 Acta. Phys. Sin. 69 233
[30] Li X X, Liu L X, Jiang W, Ren J, Wang H W, Fan G T, Jiang D X, Wang D X, Luo S Y, Cao G L, et al. 2022 Phy. Rev. C 106 065804
Google Scholar
[31] Li X K, An Z D, Jiang W, Zhang J Y, Bai R R, Liu S K, Li X X, Zhu Z C, Yang G L, Qiu W W, et al. 2023 Phys. Rev. C 108 035802
Google Scholar
[32] Ren J, Ruan X C, Bao J, Luan G Y, Jiang W, An Q, Bai H Y, Cao P, Chen Q P, Chen Y H, et al. 2019 Radiat. Detect. Tech. Meth. 3 52
Google Scholar
[33] Macklin R L, Gibbons J H 1967 Phys. Rev. 159 1007
Google Scholar
[34] Apostolakis J, Arce P, Burkhardt H, Chytracek R, Cosmo G, Dell’Acqua A, Folger G, Giani S, Ivanchenko V, Lara V, et al. 2003 Nucl. Instrum. Methods Phys. Res. A 506 250
Google Scholar
[35] Chen Y H, Luan G Y, Bao J, Jing H T, Zhang L Y, An Q, Bai H Y, Cao P, Chen Q P, Cheng P J, et al. 2019 Eur. Phys. J. A 55 115
Google Scholar
[36] 李鑫祥, 刘龙祥, 蒋伟, 任杰, 王宏伟, 范功涛, 曹喜光, 胡新荣, 张岳, 王俊文, 郝子锐, 姜炳, 王小鹤, 胡继峰, 王金成, 王德鑫, 张苏雅拉吐, 刘应都, 麻旭, 马春旺, 王玉廷, 安振东, 何健军, 苏俊, 张立勇 2020 核技术 43 080501
Li X X, Liu L X, Jiang W, Ren J, Wang H W, Fan G T, Cao X G, Hu X R, Zhang Y, Wang J W, Hao Z R, Jiang B, Wang X H, Hu J F, Wang J C, Wang D X, Zhang S Y L T, Liu Y D, Ma X, Ma C W, Wang Y T, An Z D, He J J, Su J, Zhang L Y 2020 Nucl. Tech. 43 080501
[37] Chen Y J, Li X X, Jiang W, Ren J, Xie W, Wang H W, Fan G T, Liu L X, Zhang Y, Lin Z A, Jiang T, Li Z C, Luo K J, Shi X M, Li X K, Cao Z W, Yang G L, An Z D, Jiang B, Luo W 2025 Phys. Rev. C 111 054607
Google Scholar
[38] Huang W J, Wang M, Kondev F G, Audi G, Naimi S 2021 Chin. Phys. C 45 030002
Google Scholar
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