Measurements of the Ag-107 neutron capture cross sections with pulse height weighting technique at the CSNS Back-n facility
PUBLICATION: CHINESE PHYSICS B
AUTHORS: Li, XX; Liu, LX; Jiang, W; Ren, J; Wang, HW; Fan, GT; He, JJ; Cao, XG; Song, LL; Zhang, Y; Hu, XR; Hao, ZR; Kuang, P; Jiang, B; Wang, XH; Hu, JF; Wang, JC; Wang, DX; Zhang, SY; Liu, YD; Ma, X; Ma, CW; Wang, YT; An, ZD; Su, J; Zhang, LY; Yang, YX; Liu, WB; Su, WQ; Jin, S; Chen, KJ
ABSTRACT
Silver indium cadmium (Ag-In-Cd) control rod is widely used in pressurized water reactor nuclear power plants, and it is continuously consumed in a high neutron flux environment. The mass ratio of Ag-107 in the Ag-In-Cd control rod is 41.44%. To accurately calculate the consumption value of the control rod, a reliable neutron reaction cross section of the Ag-107 is required. Meanwhile, Ag-107 is also an important weak r nucleus. Thus, the cross sections for neutron induced interactions with Ag-107 are very important both in nuclear energy and nuclear astrophysics. The (n, y) cross section of Ag-107 has been measured in the energy range of 1-60 eV using a back streaming white neutron beam line at China spallation neutron source. The resonance parameters are extracted by an R-matrix code. All the cross section of Ag-107 and resonance parameters are given in this paper as datasets.
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