Measurement of the ²⁴⁰Pu(n,f) cross-section at the CERN n_TOF facility: first results from experimental area II (EAR-2)
Measurement of the ²⁴⁰Pu(n,f) cross-section at the CERN n_TOF facility: first results from experimental area II (EAR-2)
复制标题
CERN n_TOF 设施中 ²⁴⁰Pu(n,f) 横截面的测量：实验区 II (EAR-2) 的第一个结果
DOI：
10.1051/epjconf/201714604030
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
E. Chiaveri
中科院分区：
文献类型：
--
作者：
A. Stamatopoulos;A. Tsinganis;N. Colonna;R. Vlastou;P. Schillebeeckx;A. Plompen;J. Heyse;M. Kokkoris;M. Barbagallo;M. Calviani;E. Berthoumieux;E. Chiaveri
准确了解核燃料循环中涉及的锕系元素和其他同位素的中子诱发裂变截面对于设计先进的核系统（如第四代核反应堆）至关重要。这些实验数据还可以为评估过程中使用的核模型参数的调整提供必要的反馈，从而进一步发展核裂变模型。在目前的工作中，240 Pu（n，f）的横截面测量在欧洲核子研究中心的n TOF设施相对于众所周知的235 U（n，f）的横截面，在很宽的中子能量范围内，从MeV到几乎MeV，使用飞行时间技术和基于Micromegas探测器的设置。该测量是在n TOF的新实验区（N2 -2）进行的第一个实验，与现有的实验区（N2 -1）相比，该实验区提供了显着更高的中子通量。初步结果以及实验过程，包括设施和数据处理和分析的描述，提出。
The accurate knowledge of the neutron-induced fission cross-sections of actinides and other isotopes involved in the nuclear fuel cycle is essential for the design of advanced nuclear systems, such as Generation-IV nuclear reactors. Such experimental data can also provide the necessary feedback for the adjustment of nuclear model parameters used in the evaluation process, resulting in the further development of nuclear fission models. In the present work, the 240Pu(n,f) cross-section was measured at CERN’s n TOF facility relative to the well-known 235U(n,f) cross section, over a wide range of neutron energies, from meV to almost MeV, using the time-of-flight technique and a set-up based on Micromegas detectors. This measurement was the first experiment to be performed at n TOF’s new experimental area (EAR-2), which offers a significantly higher neutron flux compared to the already existing experimental area (EAR-1). Preliminary results as well as the experimental procedure, including a description of the facility and the data handling and analysis, are presented.
影响因子：
2.7
作者：
Guerrero, C.;Tsinganis, A.;Zugec, P.
通讯作者：
Zugec, P.