Conveners
Libraries: I
- Osamu Iwamoto (JAEA)
Libraries: II
- Bret Beck (LLNL)
Libraries: III
- Arjan Plompen
Libraries: IV
- Zhigang Ge
Libraries: V
- Elizabeth McCutchan
Libraries: VI
- Cedric Jouanne
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Dr Arjan Koning (IAEA)25/07/2022, 09:30
The TALYS Evaluated Nuclear Data Library (TENDL) had 11 releases since 2008. A
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number of achievements has been realized, translated in a growing user group, as well
as a high interaction with other library projects. The backbone of this achievement
is simple and robust: completeness, quality and reproducibility. In this presentation,
the strong points of TENDL will be outlined, as well as the... -
Mr Daniel Lopez Aldama (IAEA/Consultant)25/07/2022, 09:54
Since 2016 the Nuclear Data Section of the International Atomic Energy Agency (NDS/IAEA) has encouraged the development of new codes for processing evaluated nuclear data for applications. The main motivation has been the need for improving processing methods and avoiding common failure modes. In the frame of this effort, the NDS/IAEA has supported the development of the processing system...
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Bret Beck (LLNL)25/07/2022, 10:06
Transport codes used to simulate reactors, critical assemblies, medical diagnostics, etc. need access to nuclear and atomic data (e.g., data from ENDF/B-VIII.0 and EPICS2017). The Generalized Nuclear Data Structure (GNDS) supports storing evaluated and processed nuclear and atomic data - processed data are data in a form more suitable for transport codes (e.g., cross sections reconstructed...
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Dr Cédric Jouanne (CEA Saclay)25/07/2022, 10:18
GALILEE-1 is the new verification and processing system for evaluated data, developed at CEA.
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We have already presented in the past the reconstruction and Doppler broadening of cross-sections implemented in the GTREND module of GALILEE-1. The results obtained are of very good quality and we can explain the discrepancies observed with respect to other processing codes such as NJOY and PREPRO.... -
Wim Haeck (LANL)25/07/2022, 10:30
Each release of the ENDF/B nuclear data library [1] pushes the limits of the processing codes through the introduction of new data and new data formats. Processing codes must be adapted to ensure that they are capable of using these new formats, or at the very least understand them. NJOY [2], the nuclear data processing code developed at Los Alamos National Laboratory is no exception to this....
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Dr Tiejun Zu (Xi'an Jiaotong University)25/07/2022, 10:42
In the previous version of nuclear data processing code NECP-Atlas reported in the last ND-2019, the code could process the evaluated nuclear data into application libraries of typical formats with the conventional processing methods. NECP-Atlas is under continuous development and verification during the past years. Several new capabilities have been developed in the code.
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(1) The code is... -
Mario Veicht (Paul Scherrer Institut (PSI); École polytechnique fédérale de Lausanne (EPFL))25/07/2022, 11:45
$^{32}$Si is an extremely rare, naturally occurring radioactive isotope. With its half-life ($\textit{T}$$_{1/2}$) of approximately 150 years $^{32}$Si would be one of the suitable candidates for radiometric dating in the range of 100–1000 years, where an appropriate dating nuclide is still missing (Fig. 1a).
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The fact that the application of this nuclide for dating has been very limited so far... -
Isabel Hernandez25/07/2022, 12:09
Authors:
Isabel Hernandez, Jennifer Jo Ressler, Bonnie CanionUnderstanding gamma-ray production in a neutron environment is vital in many scientific concentrations. Emergency response, planetary exploration, safety and shielding designs – among many other applications – depend on analyzing neutron induced gamma-ray spectra from measurements. These research areas often require simulation...
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Peter Brain (RPI)25/07/2022, 12:21
{Evaluated nuclear data files are the basis for representing radiation interactions with nuclei in most modern transport and diffusion codes. It is therefore important to verify and update isotopic evaluations periodically to ensure they incorporate up-to-date experimental data and reaction theory in the hope to accurately model systems with low uncertainty. Recently, great interest has been...
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Dr Kenichi Tada (Japan Atomic Energy Agency)25/07/2022, 12:33
The self-shielding effect in the unresolved resonance region has a large impact on the fast- and intermediate-spectrum reactors. The probability table method is widely used for continuous-energy Monte Carlo calculation codes to treat the effect. In this method, a table provides the probability distribution of the cross-section for a nuclide in the given energy grid points. The table is...
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Jordan McDonnell (UT-Battelle)25/07/2022, 12:45
The neutron induced total, elastic, and capture cross sections of 63,65Cu iso- topes were selected for evaluation in the resolved and unresolved resonance energy ranges by the National Criticality Safety Program to resolve discrepancies related to benchmark performance. This is especially evident for the series of ZEUS benchmarks in which copper is used as a reflector. Because copper is also...
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Luca Pagani (UC Davis)25/07/2022, 12:57
A measurement of the transmission coefficient for neutrons through a thick ($\sim 3$ atoms/b) liquid natural argon target in the energy range $30$-$70$ keV was performed by the Argon Resonance Transmission Interaction Experiment (ARTIE) using a time of flight neutron beam at Los Alamos National Laboratory.
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In this energy range theory predicts an anti-resonance in the $^{40}$Ar cross section... -
Chris Morse27/07/2022, 11:00
The Evaluated Nuclear Structure Data File (ENSDF) database is the comprehensive
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nuclear structure and decay database, containing all published experimental
nuclear structure and decay data for the 3300 observed nuclides, along with
carefully evaluated recommended values and uncertainties. ENSDF is the leading
source of nuclear structure and decay data worldwide for both basic and... -
Donnie Mason27/07/2022, 11:24
The National Nuclear Data Center (NNDC) at Brookhaven National Laboratory (BNL) has developed and maintained NuDat, a web application where users can explore several databases containing nuclear structure, nuclear decay, and neutron-induced nuclear reaction information. NuDat is the primary web application used to query and visualize meticulously evaluated recommended values derived from all...
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Dr Viktor Zerkin (International Atomic Energy Agency)27/07/2022, 11:36
EXFOR (EXchange FORmat) database contains experimental nuclear reaction data compiled by the NRDC (Nuclear Reaction Data Centers) network. The network strictly regulates data format, rules of compilation, distribution of work and data exchange between data centers. The data dissemination is not regulated by the network - this includes output data formats, various database services, software...
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Godfree Gert27/07/2022, 12:00
The Generalized Nuclear Data Structure (GNDS) is the new international standard for the dissemination of nuclear reaction data. The GNDS structure is defined in a set of JSON files which allow for its implementation as follows:
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- a written report (illustrated in Figure 1) which supplements the GNDS description with examples; and
- post-processing of the JSON files to alternate formats, e.g.
o... -
Nathan Gibson (Los Alamos National Laboratory)27/07/2022, 12:12
Across the nuclear data pipeline, it is important to drive improvements in validation and verification. One powerful tool in this process, for evaluation through applications, is simply visualizing the data. The ability to visualize nuclear data exists in many forms already, ranging from the legacy but robust tools in NJOY [1] (PLOTR and VIEWR) to the NEA’s Java-based Nuclear Information...
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Boris Pritychenko (NNDC, BNL)28/07/2022, 06:00
The comprehensive experimental nuclear reaction data compilations were pioneered at the Metallurgical Laboratory (University of Chicago) and Los Alamos National
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Laboratory [1,2] for the Manhattan Project needs. In 1947 many Manhattan Project alumni moved to a newly created Brookhaven National Laboratory to work on nuclear physics research and data compilations [3,4] in support of nuclear... -
Allan Carlson (NIST and BNL)28/07/2022, 06:24
An effort is now underway to produce a new evaluation of the neutron cross section standards.
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It is important to maintain experimental programs to increase the quality and extend the database
for the neutron cross section standards in order to improve evaluations of them that will be used to convert cross section measurements made relative to those standards.
Measurements have been made for... -
Robert Casperson (LLNL)28/07/2022, 06:36
Adjustment is a useful tool for optimizing a nuclear data library for particular applications, but can also highlight deficiencies and suggest changes when employed with validation data that disagrees with an evaluation. Spectral indices validation data for ENDF/B-VIII.0 appear systematically higher than calculated values made using the evaluation. Adjustment with this data would lead to...
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Prof. Oscar Cabellos (Universidad Politécnica de Madrid (UPM))28/07/2022, 06:48
Recently, a second Target Accuracy Requirements (TAR) exercise has been launched in the framework of the WPEC/S46 on “Efficient and Effective Use of Integral Experiments for Nuclear Data Validation”. The TAR exercise aims at quantifying nuclear data needs (in terms of uncertainty reduction) to meet target accuracies on specific integral parameters. These target accuracies are driven by reactor...
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Dr Elias Vandermeersch (CEA)28/07/2022, 07:00
Nuclear data evaluation principally relies on adjustments of nuclear parameters on differential experiment data. To add another source of information, one may use integral experiments data. Usually, this process is applied on multi-group cross sections, with the help of deterministic transport code. However, nuclear data obtained are often biased toward the integral experiment studied, or the...
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Ramon Arcilla (NNDC-BNL)28/07/2022, 07:12
The benefits of containerized software in the deployment of applications are already well recognized and understood in the nuclear data community. In this regard, this paper describes how we migrated ADVANCE, NNDC’s continuous nuclear data quality assurance (QA) system, from the Buildbot CI/CD environment to an on-premise Kubernetes cluster of Docker containers which also serves as our new...
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Osamu Iwamoto (Japan Atomic Energy Agency)28/07/2022, 07:50
Japanese Evaluated Nuclear Data Library version 5 (JENDL-5) was released in 2021. JENDL-5 is intended to extend its generality from JENDL-4.0 by covering a wide variety of nuclear data for applications not only to nuclear design and decommissioning, but also to radiation-related fields. Overview of JENDL-5 and a future plan for the next of JENDL-5 are presented.
JENDL-5 includes up-to-date...
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Gustavo Nobre (BNL)28/07/2022, 08:14
The Cross Section Evaluation Working Group (CSEWG) is actively working to assemble its next library release, ENDF/B-VIII.1. In this contribution, we will outline progress toward this release. From the neutron sublibrary, there are several new evaluations from the INDEN collaboration (Cr, Mn, Fe, Si, 235U, 233U, 239Pu, 16,18O), and from others in...
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Zhigang GE (China Institute of Atomic Energy/China Nuclear Data Center)28/07/2022, 08:26
As the main output of CENDL project, the updated Chinese Evaluated Nuclear Data Library, CENDL-3.2 released in June 2020, which contains the neutron reaction data file which contained 272 materials, and the evaluated activation, fission yields, decay data and photonuclear data file are also included CENDL-3.2.
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Out of all 272 materials, the data for 135 materials are totally new，partly updated... -
Dr Shinsuke Nakayama (Japan Atomic Energy Agency)28/07/2022, 08:38
JENDL-5 contains several sub-libraries to contribute to various applications. This presentation outlines the deuteron and alpha ones.
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Nuclear data on neutron-production reactions induced by deuteron are required in the fields of design of accelerator-based neutron sources. In such facilities, ($d,xn$) reactions on Li, Be, or C are employed to generate neutron beams. We have recently developed... -
Arjan Plompen (European Commission, Joint Research Centre, Geel)28/07/2022, 08:50
Following the release of JEFF-3.3 in late 2017, the JEFF coordination group took a step back to review its goals for a new major release, JEFF-4: for users, in terms of fields of application and performance, and within the project to modernize the methods for the production, testing and benchmarking of its evaluated files. Given the broad range of applications of a nuclear data library and the...
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Dr Francisco Alvarez-Velarde (CIEMAT)28/07/2022, 09:02
The safe management of the spent nuclear waste (SNF) requires a special effort of characterization, since its isotopic composition is the key to its transport, handling and storage by means of the decay heat, gamma emission and neutron emission it produces due to radioactive decay.
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The effort is being done in the frame of the EU EURAD project (European Joint Programme on Radioactive Waste... -
Mr Antonio Jimenez-Carrascosa (Universidad Politécnica de Madrid)28/07/2022, 09:40
Nuclear data processing is the procedure devoted to the conversion of evaluated nuclear data into libraries suitable for specific final applications such as neutron transport or inventory calculations. AMPX is the modular processing code of SCALE Code System that takes basic cross section data in Evaluated Nuclear Data File format to provide both multigroup and continuous energy libraries for...
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Caleb Mattoon (Lawrence Livermore National Lab)28/07/2022, 09:52
FUDGE (For Updating Data and Generating Evaluations) is an open-source code that supports reading, visualizing, checking, modifying, and processing nuclear reaction and decay data. For ease of use the frontend of FUDGE is written in Python while C and C++ routines are employed for computationally intensive calculations.
FUDGE has been developed primarily at Lawrence Livermore National...
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Andrew Till (LANL)28/07/2022, 10:04
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Yihan Huang (Xi'an Jiaotong University)28/07/2022, 10:16
The latest evaluated nuclear data libraries, including ENDF/B-VIII.0, TENDL2019, all have two formats, the Evaluated Nuclear Data File (ENDF-6) nuclear data format, and the Generalised Nuclear Database Structure (GNDS). The first official public documentation of all of the options for storing data in GNDS was released by the Working Party on International Nuclear Data Evaluation...
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Jordan McDonnell28/07/2022, 10:28
\documentclass[11pt]{article}
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\usepackage{geometry} % See geometry.pdf to learn the layout options. There are lots.
\geometry{letterpaper} % ... or a4paper or a5paper or ...
%\geometry{landscape} % Activate for for rotated page geometry
%\usepackage[parfill]{parskip} % Activate to begin paragraphs with an empty line rather than an... -
Greg Bailey (UKAEA)
When a material or sample becomes activated $\beta$-emitting isotopes will often provide a significant contribution to nuclear responses. As such, accurate values for $\beta$-decay observables (decay energies, heating contributions) form an import part of decay data library development. Unfortunately, much of current evaluated $\beta$-decay data is incomplete.
During $\beta$-decay the...
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Mark Kellett (CEA/LNE-LNHB)
The JEFF Radioactive Decay Data Library forms part of the suite of nuclear data libraries produced under the auspices of the Joint Evaluated Fission and Fusion (JEFF) file project of the OECD Nuclear Energy Agency. An update of the radioactive decay data library, JEFF-4, is now in progress.
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All the sources of radioactive decay data that contribute to this library are being updated,... -
Dr Tim Ware (Jacobs)
The ANSWERS Software Service produces the MONK\textregistered and MCBEND Monte Carlo codes, and the WIMS deterministic code for nuclear criticality, shielding and reactor physics applications. MONK and MCBEND can utilise the BINGO continuous energy nuclear data library and MONK and WIMS can utilise the WIMS 172 energy group nuclear data library. Production of BINGO libraries currently utilises...
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Olga Vilkhivskaya (UK Atomic Energy Authority)
Accurate simulations of the radionuclide inventories and measurable quantities such as activity, dose rates and decay heat are made possible by means of carefully evaluated decay data (DD). In an automated compilation of a DD library of more than 3800 nuclides, the DD files could notably suffer from: misreading of data from the sources, omitting of the emitted particle spectra during the...
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