natRe（γ，xn）光核反应在30 MeV和40 MeV韧致辐射能下的平均截面和异构比的测量
Measurement of average cross sections and isomeric ratios for natRe(γ,xn) photonuclear reactions at the end-point bremsstrahlung energies of 30 MeV and 40 MeV
摘要：
用高纯锗探测器（HPGe），用活化和离线γ能谱技术测量了韧致辐射终点能为30 MeV和40 MeV时天然铼（natRe）靶上（γ，xn）反应的截面。将测量的natRe（γ，xn）反应截面与用TMS1.9和EMPIRE 3.2计算机程序计算的理论截面进行了比较。测量允许的异构体截面比（ICR）的184 m，g Re和182 m，gRe异构对的测定。此外，我们还确定了186 m，gRe异构对的半经验值。这些结果为30 MeV和40 MeV的端点韧致辐射能量的第一次。
英文摘要：
The cross sections for (γ,xn) reactions at 30 MeV and 40 MeV bremsstrahlung end-point energies on natural rhenium (natRe) targets have been measured by the activation and the off-line γ-ray spectrometric techniques using a High Purity Germanium detector (HPGe). The measured natRe(γ,xn) reaction cross sections were compared to the theoretically calculated cross sections using TALYS 1.9 and EMPIRE 3.2 computer codes. The measurements allowed the determination of the Isomeric Cross section Ratios (ICR) for the 184m,g Re and 182m,gRe isomeric pairs. In addition, we have determined a semi-empirical value for the 186m,gRe isomeric pair. These results for the 30 MeV and 40 MeV end-point bremsstrahlung energies are obtained for the first time.
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