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      • KCI등재

        Benchmarking CENDL-3.1 with Critical Benchmarks

        Hua. Zhang,Haicheng. Wu 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23

        In the frame of criticality safety, the new release of China Evaluated Nuclear Data Library, version 3.1, were validated with hundreds of critical benchmarks from the International Handbook of Evaluated Criticality Safety Benchmark Experiments. These benchmarks were selected to cover fast spectrum, intermediate spectrum and thermal spectrum. Criticality calculations were performed by using Monte Carlo transport code MCNP4C. Continuous-energy point-wise libraries were prepared with nuclear data processing code NJOY99.259 The calculated eigenvalues for CENDL-2.1 and CENDL-3.1 were compared with the benchmark values. The validation showed that evaluations from CENDL-3.1 gave better predictions of k<sub>eff</sub> values than those from CENDL-2.1 in whole respect, especially in fast energy range.

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        Development of multigroup cross section library generation system TPAMS

        Wen Lili,Wu Haicheng,Chen Ying,Chai Xiaoming,Wu Xiaofei,Tu Xiaolan,Liu Yuan 한국원자력학회 2024 Nuclear Engineering and Technology Vol.56 No.6

        Kylin-2 is an advanced neutronics lattice code, developed by Nuclear Power Institute of China. High-precision multigroup cross section library is need for KYLIN-2 to carry out simulation of current pressurized water reactor (PWR) and advanced reactor. In this paper a multigroup cross section library generation system named TPAMS was developed, the methods in TPAMS dealing with resonance data such as subgroup parameters, lambda factor, resonance integral were discussed. Moreover, the depletion chain simplification method was studied. TPAMS can produce multigroup library in binary and ASIIC formats, including detailed data contents for resonance, transport and depletion calculations. A multigroup cross section library has been generated for KYLIN-2 based on TPAMS system. The multigroup cross section library was verified through the analysis of various criticality and burnup benchmarks, the values of multiplication factor and isotope density were compared with the experiment data. Numerical results demonstrate the accuracy of the multigroup cross section library and the reliability of the multigroup cross section library generation system TPAMS.

      • KCI등재

        Influence of nuclear data library on neutronics benchmark of China experimental fast reactor start-up tests

        Guo Hui,Jin Xin,Huo Xingkai,Gu Hanyang,Wu Haicheng 한국원자력학회 2022 Nuclear Engineering and Technology Vol.54 No.10

        Nuclear data is the basis of reactor physics analysis. This paper aim at studying the influence of major evaluated nuclear data libraries, CENDL-3.2, ENDF/B-VIII.0, JEFF-3.3, and JENDL-4.0u, on the neutronics modelling of CEFR start-up tests. Results show these four libraries have a good performance and consistency in the modelling CEFR start-up tests. The JEFF-3.3 results exhibit only an 8 pcm keff difference with the measurement. The difference in criticality is decomposed by nuclide, which shows the large overestimation of CENDL-3.2 is mainly from the cross-section of 52Cr. Except for few cases, the calculation results are within 1s of measurement uncertainty in control rod worth, sodium void reactivity, temperature reactivity, and subassembly swap reactivity. In the evaluation of axial and radial reaction distribution, there are about 65% of relative errors that are less than 5% and 82% of relative errors that are less than 10%

      • KCI등재

        Structural, Electronic and Optical Characteristics of HgSiX2 (X=P, As) Chalcopyrite Materials: A DFT-Based Computer Simulation

        Khalid Shah,Khenata Rabah,Ma Yue,Sun Xiaoliang,Gao Meng,Wu Haicheng,Lu Guiwu,Yang Zhenqing 한국물리학회 2020 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.77 No.1

        In the present work, we determined the structural, electronic and optical properties of HgSiX2 (X = P, As) chalcopyrite materials by using the density functional theory (DFT). Our calculated results showed alignment with the data drawn from other experimental and theoretical studies. Therefore including the lattice parameters, bulk moduli, band gaps, the total and partial densities of states and the optical properties. The computed band structures and density of states (DOS) disclosed that HgSiP2 and HgSiAs2 are semiconductors materials with energy gaps equal to 0.931 eV and 0.425 eV, respectively. Our findings displace that the Si-3p, P-3p and As-4p atomic orbitals contribute to the density of states. Moreover, a comprehensive analysis of the electronic and the optical properties such as the reflectivity, absorption spectra, and dielectric functions revealed that the HgSiP2 and the HgSiAs2 materials may be beneficial in optoelectronic applications. We hope that the designs and preparations of the HgSiP2 and the HgSiAs2 materials will lead to give new advance strategies and gateways for the explorations of highly efficient optoelectronic devices.

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