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2015-12-251 Benchmarks for Data Testing of Iron China Nuclear Data Center(CNDC) China Institute of Atomic Energy(CIAE) P.O.Box 275-41,Beijing 102413, P.R.China.

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Presentation on theme: "2015-12-251 Benchmarks for Data Testing of Iron China Nuclear Data Center(CNDC) China Institute of Atomic Energy(CIAE) P.O.Box 275-41,Beijing 102413, P.R.China."— Presentation transcript:

1 2015-12-251 Benchmarks for Data Testing of Iron China Nuclear Data Center(CNDC) China Institute of Atomic Energy(CIAE) P.O.Box 275-41,Beijing 102413, P.R.China E-Mail: ping@ciae.ac.cn Ping Liu

2 1. Introduction 2015-12-252

3 CIELO/Iron According to CIELO project, CNDC are working on the improvement of Iron evaluations, especially on the experimental data evaluations of Iron CNDC validated the evaluations of iron with both shielding and criticality benchmarks 2015-12-253

4 The method of benchmarks testing Selecting integral benchmarks Using the transport codes to perform benchmark simulations Analyzing benchmarking results Providing feedbacks to evaluator Key points of above procedure Suitable benchmarks Quantitative feedbacks to evaluators To meet above requirements, related works have been done at CNDC Study on how to select integral benchmarks Development of nuclear data adjustment code (H. Wu’s presentation on SG39 meeting, May 2015) 2015-12-254

5 2. Benchmarks Testing of Iron 2015-12-255

6 Data processing Evaluated data library CENDL-3.1 ENDF/B-VII.1 JENDL-4.0 CENDL-NP Processing of evaluated data files NJOY99.396 ACE format library 2015-12-256

7 Integral benchmarks Transport Code MCNP5 Benchmarks Criticality (ICSBEP) Shielding (LLNL, FNS/JAPAN) 2015-12-257

8 Benchmarks The methodology of selecting benchmarks - The weight (lost to capture) of 56 Fe > 1% Cases of benchmarks 184 2015-12-258 Criticality benchmarking

9 2015-12-259 Identification LaboratoryCase Label Cladding material Fuel formFuel materialReflector material Moderator material PU-MET-FAST-015 IPPE, Russia SteelMetal / AlloyPlutonium MetalIronNone PU-MET-FAST-025 VNIIEF, RussiaSimplified ModelMetal / AlloyPlutonium MetalSteelNone PU-MET-FAST-026 VNIIEF, RussiaSimplified ModelMetal / AlloyPlutonium MetalSteelNone PU-MET-FAST-028 VNIIEF, RussiaSimplified ModelMetal / AlloyPlutonium MetalSteelNone PU-MET-FAST-032 VNIIEF, RussiaSimplified ModelMetal / AlloyPlutonium MetalSteelNone HEU-MET-FAST-013 LANL, USA.0625-in.-thick FePolyethyleneMetal / AlloyUranium MetalPolyethylene HEU-MET-FAST-021 VNIIEF, RussiaSimplified ModelMetal / AlloyUranium MetalSteelNone HEU-MET-FAST-024 VNIITF, Russia Metal / AlloyUranium MetalSteel + PolyethyleneNone IEU-MET-FAST-005 VNIIEF, RussiaSimplified ModelMetal / AlloyUranium MetalSteelNone IEU-MET-FAST-006 VNIIEF, RussiaSimplified ModelMetal / AlloyUranium MetalDuraluminNone HEU-MET-THERM-013 LANL, USA15-mil-thick FePolyethyleneMetal /AlloyUranium MetalPolyethylene HEU-MET-THERM-015 LANL, USA PolyethyleneMetal / AlloyUranium MetalPolyethylene HEU-MET-INTER-001 ANL, USAZPR-9/34Metal / AlloyUranium MetalSteelNone PU-MET-INTER-002 ANL, USAZPR-6/10SteelMetal /AlloyPlutonium MetalSteel + IronGraphite MIX-COMP-FAST-001 ANL, USAZPR-6/7SteelCompoundDepleted UraniumNone

10 Criticality benchmarking 2015-12-2510

11 Criticality benchmarking 2015-12-2511

12 Criticality benchmarking 2015-12-2512

13 Criticality benchmarking Identification ALIAS EALF (MeV) K eff ICSBEP uncertainty (1 sigma) C/E of k eff CENDL-NPCENDL-3.1ENDF/B-VII.0/1 PU-MET-FAST-015BR-1-311.004110.00260.99640.99201.0014 PU-MET-FAST-025pmf0251.27110.00220.99770.99490.9987 PU-MET-FAST-026pmf0261.16110.00260.99730.99130.9988 PU-MET-FAST-028pmf0281.12110.00240.99920.99170.9994 PU-MET-FAST-032pmf0321.25110.00220.99900.99210.9986 HEU-MET-FAST-013VNIITF-CTF-SS-130.8320.99910.00150.99960.99530.9986 HEU-MET-FAST-021VNIITF-CTF-SS-210.796110.00260.99890.99380.9975 HEU-MET-FAST-024VNIITF-CTF-SS-240.08110.99910.00151.00061.00281.0000 IEU-MET-FAST-005VNIITF-CTF-SS-50.647110.00231.00151.00011.0020 IEU-MET-FAST-006VNIITF-CTF-SS-60.639110.00250.99540.99840.9961 HEU-MET-THERM-013hmt013-27.51E-080.998310.0021.01471.02101.0159 HEU-MET-THERM-015hmt0156.52E-081.0086410.00210.99851.00451.0001 HEU-MET-INTER-001ZPR-9/340.02940.996610.00261.00071.01771.0044 PU-MET-INTER-002ZPR-6/100.01020.986910.00261.05151.04041.0481 MIX-COMP-FAST-001ZPR-6/70.10500.986610.00231.00150.99921.0005 2015-12-2513

14 Results analysis 2015-12-2514 C/E of k eff for steel/iron benchmarks (without PMI002 and HMT013_2) HMT013_2 is not a good one for validating iron data, because the polyethylene brings serious overestimation of k eff, but not 56 Fe. The similar overestimation of k ef is also occurred in PMI002. Regardless of HMT013 and PMI002, the criticality results of iron are not so bad. Criticality benchmarking

15 2015-12-2515 With the increase of weight, k eff has an increasing tendency With the increase of weight, k eff has an increasing tendency

16 Benchmarks Lawrence Livermore pulsed sphere (LLNL) FNS (JAPAN) 2015-12-2516 Shielding benchmarking

17 Benchmarking results 2015-12-2517 Neutron leakage angular flux from 5cm-thick iron Shielding benchmarking

18 2015-12-2518 Shielding benchmarking Neutron leakage current from iron sphere The results indicate that cross sections and neutron emission spectra for inelastic scattering reactions are needed to be improved

19 Shielding benchmarking 2015-12-2519 The contribution of secondary neutron in 2-10 MeV is mainly from inelastic scattering of discrete energy level and the continuous energy level

20 3. Summary 2015-12-2520

21 CENDL-3.1 shows good performance for most criticality benchmarks, but the performance of CENDL-3.1 for shielding benchmarks is not good. For criticality benchmarking Not all benchmarks are suitable for data testing of Iron HMT013_2 and PMI002 are not suitable to validate the Iron Further study on the selection of benchmarks is needed For shielding benchmarking The results indicate that cross sections and neutron emission spectra for inelastic scattering reactions data from CENDL are need to be improved. 2015-12-2521

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