Jeremy Conlin
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View article: Modern Models for Calculating the Atmospheric Dispersion Factor
Modern Models for Calculating the Atmospheric Dispersion Factor Open
View article: ACE format development at LANL: Mixed mode thermal scattering and the ACEtk toolkit
ACE format development at LANL: Mixed mode thermal scattering and the ACEtk toolkit Open
View article: Cross Section Evaluation Working Group—2020 Presentations
Cross Section Evaluation Working Group—2020 Presentations Open
View article: GNDStk (GNDS Toolkit)
GNDStk (GNDS Toolkit) Open
View article: Nuclear Data Pipeline, Part II: From ENDF to Application
Nuclear Data Pipeline, Part II: From ENDF to Application Open
View article: Next generation safeguards initiative effort to determining plutonium mass in spent fuel with nondestructive assay techniques
Next generation safeguards initiative effort to determining plutonium mass in spent fuel with nondestructive assay techniques Open
View article: Predicting fissile content of spent nuclear fuel asemblies with the passive neutron Albedo reactivity technique and Monte Carlo code emulation
Predicting fissile content of spent nuclear fuel asemblies with the passive neutron Albedo reactivity technique and Monte Carlo code emulation Open
View article: Determining fissile content in PWR spent fuel assemblies using a passive neutron Albedo reactivity with fission chambers technique
Determining fissile content in PWR spent fuel assemblies using a passive neutron Albedo reactivity with fission chambers technique Open
State regulatory bodies and organizations such as the IAEA that are concerned with preventing the proliferation of nuclear weapons are interested in a means of quantifying the amount of plutonium in a given spent fuel assembly. The complex…
View article: Predicting fissile content of spent nuclear fuel assemblies with the passive neutron Albedo reactivity technique and Monte Carlo code emulation
Predicting fissile content of spent nuclear fuel assemblies with the passive neutron Albedo reactivity technique and Monte Carlo code emulation Open
There is a great need in the safeguards community to be able to nondestructively quantify the mass of plutonium of a spent nuclear fuel assembly. As part of the Next Generation of Safeguards Initiative, we are investigating several techniq…
View article: Determining plutonium mass in spent fuel with non-destructive assay techniques - NGSU research overview and update on 6 NDA techniques
Determining plutonium mass in spent fuel with non-destructive assay techniques - NGSU research overview and update on 6 NDA techniques Open
This poster is one of two complementary posters. The Next Generation Safeguards Initiative (NGSI) of the U.S. DOE has initiated a multi-lab/university collaboration to quantify the plutonium (Pu) mass in, and detect the diversion of pins f…
View article: Nuclear Safety at Los Alamos National Laboratory
Nuclear Safety at Los Alamos National Laboratory Open
View article: Safety Basis for Nuclear Engineers
Safety Basis for Nuclear Engineers Open
View article: LANL Nuclear Data Manager Format Specification v1.0
LANL Nuclear Data Manager Format Specification v1.0 Open
The LANL nuclear data manager tool is a Python utility that downloads nuclear data from the Nuclear Data Team’s website at https://nucleardata.lanl.gov, arranges it, and configures directory listings for nuclear codes such as the MCNP code…
View article: Nuclear Data: What, Why How, Who? [Slides]
Nuclear Data: What, Why How, Who? [Slides] Open
Nuclear data is data that describes physics in forms and formats that computer code can read to perform simulations of nuclear processes. The data is put into ”evaluations” following the combination of experiment and theory. Various physic…
View article: Nuclear Data Activities Supporting MCNP [Slides]
Nuclear Data Activities Supporting MCNP [Slides] Open
Nuclear Data Team at LANL is working to improve nuclear data availability. These efforts include an updated, modernized, and improved website and a new, dynamic tool for examining what ACE data is on your machine.
View article: NJOY work in FY21 [Slides]
NJOY work in FY21 [Slides] Open
LANL lists several NJOY priorities for the future, including the maintenance of NJOY2016 for the foreseeable future, as well as the delivery of usable NJOY21 components.
View article: Preparation of Nuclear Data Libraries for Web Release [Slides] and Tutorial for Generating Correlated Random Samples and Propagation of Uncertainty [Slides]
Preparation of Nuclear Data Libraries for Web Release [Slides] and Tutorial for Generating Correlated Random Samples and Propagation of Uncertainty [Slides] Open
The first presentation discuses moving distribution of nuclear data to an online platform which allows ore frequent nuclear data updates, greater ease of acquiring nuclear data, and user flexibility in what nuclear data to download. The se…
View article: n + <sup>11</sup>B Gamma-Ray Production Evaluation
n + <sup>11</sup>B Gamma-Ray Production Evaluation Open
Group P-3 (Auchampaugh and Wender) has provided T-2 with measurements of neutron-induced gamma-ray spectra for neutron energies between 2 and 42 MeV and gamma-ray energies between ~ 1.6 and 20 MeV.
View article: Charged Particle Transport Libraries (Final Report FY2020 Level-2 Milestone #7127)
Charged Particle Transport Libraries (Final Report FY2020 Level-2 Milestone #7127) Open
This document is the final report on the status and developments of the Charged-Particle Transport (CPT) Level-2 (“CP2020”) ASC/PEM Milestone work. This section gives an overview of the CP2020 work partitioned into two subsections: 1) a su…
View article: IMPROVED THERMAL SCATTERING DATA PREPARATION
IMPROVED THERMAL SCATTERING DATA PREPARATION Open
Convenient access to accurate nuclear data, particularly data describing low-energy neutrons, is crucial for trustworthy simulations of thermal nuclear systems. Obtaining the scattering kernel for thermal neutrons (i.e., neutrons with ener…
View article: Charged-Particle Transport Libraries: ASC/PEM Level-2 Milestone Review [Slides]
Charged-Particle Transport Libraries: ASC/PEM Level-2 Milestone Review [Slides] Open
the following Section 3. Section 4 discusses testing and validation of the evaluated and processed data for the CP2020 library. Conclusions based on the experience of this Level-2 work and the outlook for future development of CPT-relevant…
View article: Proceedings of the Workshop for Applied Nuclear Data: WANDA2020
Proceedings of the Workshop for Applied Nuclear Data: WANDA2020 Open
On March 3–5, 2020, in Washington, DC, the Nuclear Data Interagency Working Group (NDIAWG) supported the 3-day Workshop for Applied Nuclear Data (WANDA2020) to facilitate interagency collaboration on nuclear data for applications and to co…
View article: Release of NDI Libraries MENDF80 and MT80—Libraries Based on ENDF/B-VIII.0
Release of NDI Libraries MENDF80 and MT80—Libraries Based on ENDF/B-VIII.0 Open
Several new NDI libraries have been released by the Nuclear Data Team. There are multigroup-energy neutron libraries (see Section II.) and associated production-depletion libraries (see Section IV.). The libraries are based on data from EN…
View article: Verification of the Re-Released ENDF/B VIII.0 Based Thermal Scattering Libraries
Verification of the Re-Released ENDF/B VIII.0 Based Thermal Scattering Libraries Open
An accurate description of the scattering of thermal neutrons (E < 4 eV) is crucial for the design and safety of nuclear reactors, criticality safety, and shielding. The thermal scattering libraries (TSL) of evaluated nuclear data describe…
View article: WPEC Subgroup-38 Final Report part II: Specifications for a new database structure
WPEC Subgroup-38 Final Report part II: Specifications for a new database structure Open
This is the revision of the specifications for the Generalised Nuclear Database Structure (GNDS), corresponding to GNDS version 1.9. GNDS is designed to serve as a replacement for the Evaluated Nuclear Data Format (ENDF). Although GNDS sup…
View article: A Compact ENDF (ACE) Format Specification
A Compact ENDF (ACE) Format Specification Open
The ACE format consists of two types and many classes of data. The data are kept in\nan ACE Table. The term ACE Table and ACE file are often used interchangeably.
View article: Neutron-induced damage simulations: Beyond defect production cross-section, displacement per atom and iron-based metrics
Neutron-induced damage simulations: Beyond defect production cross-section, displacement per atom and iron-based metrics Open
View article: Development and Maintenance of NJOY
Development and Maintenance of NJOY Open
NJOY is the leading nuclear data processing code, which is developed at Los Alamos National Laboratory. NJOY21 is the current production version. It replaces the legacy, Fortran-based, NJOY2016 which is a direct descendent of the original …
View article: Nuclear Data Processing
Nuclear Data Processing Open
View article: Release of ENDF/B-VIII.0-Based ACE Data Files
Release of ENDF/B-VIII.0-Based ACE Data Files Open
In February 2018, the National Nuclear Data Center released ENDF/B-VIII.0 in the standard Evaluated Nuclear Data Format (ENDF). This represents the advances made in nuclear data since the release of ENDF/B-VII.1 in 2011.