Spallation reaction study for the long-lived fission product Pd-107
Spallation reaction study for the long-lived fission product Pd-107
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长寿命裂变产物 Pd-107 的散裂反应研究
DOI：
10.1093/ptep/ptw187
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发表时间：
2017
影响因子：
3.5
通讯作者：
et al.
中科院分区：
文献类型：
--
作者：
H. Wang;T. Isobe;et al.
为了核废料嬗变的目的，已经研究了长寿命裂变产物的裂变反应。在RIKEN放射性同位素束工厂的逆运动学中，在196和118 MeV/核子下获得了质子和氘诱导的散射截面。系统地研究了截面的靶向和能量依赖性。结果表明，在196 MeV/核子下的质子感生截面与在118 MeV/核子下的轻质量产物的氘感生截面接近。实验数据与SPACS半经验参数化和PHITS计算包括核内级联和蒸发过程进行了比较。我们的数据给出了使用散裂反应进行嬗变的质子/氘核通量的设计目标。此外，由于其它长寿命放射性同位素的产生量较少，所以118 MeV/核子的溅射反应可能比嬗变反应具有优势。
Spallation reactions for the long-lived fission producthave been studied for the purpose of nuclear waste transmutation. The cross sections on the proton- and deuteron-induced spallation were obtained at 196 and 118 MeV/nucleon in inverse kinematics at the RIKEN Radioactive Isotope Beam Factory. Both the target and energy dependences of cross sections have been investigated systematically. It was found that the proton-induced cross sections at 196 MeV/nucleon are close to those for deuteron obtained at 118 MeV/nucleon for the light-mass products. The experimental data are compared with the SPACS semi-empirical parameterization and the PHITS calculations including both the intranuclear cascade and evaporation processes. Our data give a design goal of proton/deuteron flux for the transmutation ofusing the spallation reaction. In addition, it is found that the spallation reaction at 118 MeV/nucleon may have an advantage over thetransmutation because of the low production of other long-lived radioactive isotopes.