scholarly journals Quantification of integral data effectiveness using the concept of active subspace in evaluated nuclear data validation

2020 ◽  
Vol 57 (11) ◽  
pp. 1245-1255
Author(s):  
Go Chiba ◽  
Daichi Imazato
Keyword(s):  
Nuclear Data ◽  
Data Validation ◽  
Active Subspace ◽  
Integral Data ◽  
Evaluated Nuclear Data

scholarly journals Critical review of CIELO evaluations of n+ 235U, 238U using differential experiments

2018 ◽  
Vol 4 ◽  
pp. 27 ◽  
Author(s):  
Roberto Capote ◽  
Andrej Trkov
Keyword(s):  
Cross Sections ◽  
Critical Review ◽  
Nuclear Data ◽  
Reaction Cross ◽  
Reaction Models ◽  
Reaction Channels ◽  
Data Files ◽  
Integral Data ◽  
Evaluated Nuclear Data ◽  
Reaction Cross Sections

Key reactions have been selected to compare JEFF-3.3 (CIELO 2) and IAEA CIELO (CIELO 1) evaluated nuclear data files for neutron induced reactions on 235U and 238U targets. IAEA CIELO evaluation uses reaction models to construct the evaluation prior, but strongly relied on differential data including all reaction cross sections fitted within the IAEA Neutron Standards project. The JEFF-3.3 evaluation relied on a mix of differential and integral data with strong contribution from nuclear reaction modelling. Differences in evaluations are discussed; a better reproduction of differential data for the IAEA CIELO evaluation is shown for key reaction channels.

scholarly journals Use of shielding integral benchmark archive and database for nucleardata validation

2020 ◽  
Vol 239 ◽  
pp. 18001
Author(s):  
I. Kodeli ◽  
O. Cabellos ◽  
L. Leal
Keyword(s):  
Cross Section ◽  
Working Party ◽  
Nuclear Data ◽  
General Purpose ◽  
Data Evaluation ◽  
Evaluation Procedure ◽  
Data Validation ◽  
Scope Test ◽  
Further Development ◽  
Evaluated Nuclear Data

Shielding benchmarks were extensively used for the validation and improvement of nuclear data since many years. Recent evaluations however mostly rely on the validation using critical benchmarks, which can introduce biases and compensation effects. A new Working Party on International Nuclear Data Evaluation Co-operation Subgroup 47 (WPEC SG47) entitled "Use of Shielding Integral Benchmark Archive and Database for Nuclear Data Validation" was started in June 2019 with the objective to promote further development and use of Shielding Integral Benchmark Archive and Database (SINBAD) and thus contribute to the diversification of the nuclear data validation practice by including more extensively other types of integral measurements, such as shielding benchmarks, in the validation and evaluation procedure. Use of shielding benchmarks is expected to provide a wider-scope test of the performance of the evaluated nuclear data and would ultimately contribute to a production of more general-purpose cross-section evaluations.

Transfer-induced fission in inverse kinematics: Impact on experimental and evaluated nuclear data bases

2015 ◽  
Vol 51 (12) ◽  
Author(s):  
F. Farget ◽  
M. Caamaño ◽  
D. Ramos ◽  
C. Rodrıguez-Tajes ◽  
K. -H. Schmidt ◽  
...  
Keyword(s):  
Inverse Kinematics ◽  
Nuclear Data ◽  
Data Bases ◽  
Induced Fission ◽  
Evaluated Nuclear Data

scholarly journals CENDL project, the chinese evaluated nuclear data library

2017 ◽  
Vol 146 ◽  
pp. 02002 ◽  
Author(s):  
Zhigang Ge ◽  
Haicheng Wu ◽  
Guochang Chen ◽  
Ruirui Xu
Keyword(s):  
Nuclear Data ◽  
Nuclear Data Library ◽  
Data Library ◽  
Evaluated Nuclear Data

scholarly journals Methodology and issues of integral experiments selection for nuclear data validation

2017 ◽  
Vol 146 ◽  
pp. 06002
Author(s):  
Ivanova Tatiana ◽  
Evgeny Ivanov ◽  
Ian Hill
Keyword(s):  
Nuclear Data ◽  
Data Validation ◽  
Selection For

scholarly journals Multi-group cross section library generation for HTGR lattice physics code XPZ

2021 ◽  
Vol 2048 (1) ◽  
pp. 012028
Author(s):  
Lerui Zhang ◽  
Ding She ◽  
Lei Shi ◽  
Richard Chambon ◽  
Alain Hébert
Keyword(s):  
Data Processing ◽  
Cross Section ◽  
Nuclear Data ◽  
Automatic Generation ◽  
Detailed Data ◽  
Processing Scheme ◽  
Processing Module ◽  
Complete Set ◽  
Evaluated Nuclear Data ◽  
High Temperature Gas

Abstract The XPZ code was previously developed for the lattice physics computation in High Temperature Gas-cooled Reactors (HTGRs), which adopted the multi-group cross section library converted from the existing open-source DRAGON library. In this paper, a new format of multi-group cross section library named XPZLIB has been implemented in XPZ code. XPZLIB is designed in binary and HDF5 formats, including detailed data contents for resonance, transport and depletion calculations. A new data-processing module named XPZR is developed based on NJOY-2016 to generate nuclide dependent XPZLIB from the most recent evaluated nuclear data, and besides, the PyNjoy-2016 system is developed for automatic generation of integrated XPZLIB including a complete set of nuclides. The new generated XPZLIB is presented with the XPZ code. Numerical results demonstrate the accuracy of the new library XPZLIB and the reliability of the data processing scheme. Moreover, the influence of different versions of ENDF/B data is investigated.

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