Measurements of the cross sections of theW186(n,γ)W187, 

New cross section measurements on tungsten isotopes around 14 MeV neutrons and their excitation functions *

“…The evaluated curve of JEFF-3.3 passes only through the experimental point of Qaim and Graca [4] within experimental error. In contrast, the results of Ganguly and Bakhru [5] and Poularikas et al [6] are much higher than the values of three excitation function curves and those of the theoretical excitation curve at the corresponding energies. The theoretical excitation curve based on TALYS-1.9 matches our experimental cross-section data and the result of Qaim and Graca [4] well.…”

“…Owing to the use of high-resolution detectors, there was no difficulty. However, for the measurement of the cross section of the 182 W(n,2n) 181 W reaction, the energy of the characteristic gamma-ray selected is 152.32 keV, which is still affected by a gamma-ray 13.4 0.25±0.04 [22] 13.65 0.4±0.06 [22] 13.88 0.48±0.07 [22] 14.28 0.57±0.08 [22] 14.58 0.65±0.09 [22] 14.87 0.83±0.11 [22] 14.6 0.54±0.05 [11] 13.33 0.237±0.6 [15] 13.56 0.311±0.57 [15] 14.66 0.6±0.11 [15] 14.93 0.64±0.13 [15] 14.7 0.55±0.07 [4] 14.5 0.85 [16] 14.8 2.5±1 [6] with energy close to 152.43 keV and 7.02% intensity of 182 Ta from the 182 W(n, p) 182 Ta+ 183 W(n,d*) 182 Ta+ 184 W(n,t*) 182 Ta reaction after using a different cooling time depending on the half-life of the product. During the cross-section calculation of the 182 W(n,2n) 181 W reaction, a formula was used to subtract the effect of the gamma-ray with 152.43 keV energy and 7.02% intensity of 182 Ta from the others that affect the measured reaction [41].…”

“…There are remarkable differences in those data at the corresponding energies, with a maximum difference given by a factor greater than 4. For the 186 W(n,d*) 185 Ta[(n,d*) = (n,d)+(n,n+p)] reaction, the experimental cross-section data induced by neutrons were obtained only by three experimental groups [4][5][6], and all of them have only one cross-section value at a single neutron energy. These data were also very different, with the maximum difference given by a factor of 8.…”

“…These experimental data are also significantly different, with the maximum difference being greater than 45%. For the 184 W(n,p) 184 Ta reaction, experimental cross-section data around the neutron energy of 14 MeV were obtained by eleven experimental groups [2][3][4]6,[8][9][10][11][13][14][15][16][17], and one of them reported their experimental results in 2016, 2003. and 1999 [2,3,13]. These experimental data are also hugely different, with the maximum difference given by a factor greater than 4.…”

“…These experimental data are also hugely different, with the maximum difference given by a factor greater than 4. For the 182 W(n,2n) 181 W, 184 W(n,α) 181 Hf, and 186 W(n,α) 183 Hf reactions, experimental cross-section data around the neutron energy of 14 MeV were obtained by seven [4,10,12,[18][19][20][21], six [2][3]9,11,12,22], and nine [2][3][4]6,[9][10][11]15,16,22] experimental groups, respectively. These experimental data are also different, with the maximum difference given by a factor greater than 2, greater than 28%, and a factor greater than 4, respectively.…”