David Grow
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View article: Packaging Capacity Calculation: Pu Oxide Packaging Options with the 2 Quart SAVY Container
Packaging Capacity Calculation: Pu Oxide Packaging Options with the 2 Quart SAVY Container Open
This calculation supports programmatic efforts to Dilute and Dispose Pu. Metal is to be oxidized at LANL, then transported to SRS for dilution at SRS. Ultimately, the diluted oxide will be disposed of at the Waste Isolation Pilot Plant (WI…
View article: Advancing Vision-based Feedback and Convolutional Neural Networks for Visual Outlier Detection
Advancing Vision-based Feedback and Convolutional Neural Networks for Visual Outlier Detection Open
Machine learning has matured into a technology that has immediate applicability to the surveillance needs of nuclear material storage containers. These containers at LANL are the barrier preventing release of radioactive material to the wo…
View article: Improving Non-Destructive Detection Technology Through SAVY Feature Detection
Improving Non-Destructive Detection Technology Through SAVY Feature Detection Open
Surveillance of special nuclear material (SNM) storage containers is required by the DOE to assess their integrity across the Complex. This work aims to improve the task of container inspections by leveraging automation through machine lea…
View article: Recovery of a cubic nonlinearity for the nonlinear Schrödinger equation
Recovery of a cubic nonlinearity for the nonlinear Schrödinger equation Open
We consider the problem of recovering a spatially-localized cubic nonlinearity in a nonlinear Schrödinger equation in dimensions two and three. We prove that solutions with data given by small-amplitude wave packets accrue a nonlinear phas…
View article: A Demonstration of Intelligent Container Surveillance Using Stationary and Mobile Camera Platforms
A Demonstration of Intelligent Container Surveillance Using Stationary and Mobile Camera Platforms Open
Surveillance of nuclear material storage containers is required to ensure that the container safety boundary is maintained during the service life of the container. As many of these container types are the first and only containment barrie…
View article: Rules of Use Report Engineering evaluations of nuclear material storage containers against the packaging requirements at TA-55
Rules of Use Report Engineering evaluations of nuclear material storage containers against the packaging requirements at TA-55 Open
A set of obligations in the yearly storage container surveillance program, ensures that a retrospective approach is applied with loaded containers in inventory to confirm compliance with all “users” to ensure nuclear material storage conta…
View article: 2021 Hagan Container Surveillance Plan
2021 Hagan Container Surveillance Plan Open
Prior to 2021, Hagan containers were examined on an ad hoc basis as part of the SAVY-4000 surveillance plan. Given the size, aging horizon, and unique potential failure mechanisms of the Hagan population, the authors identified the need fo…
View article: Evaluation of the Los Alamos Nuclear Material Packaging Risk Ranking Method
Evaluation of the Los Alamos Nuclear Material Packaging Risk Ranking Method Open
Repackaging nuclear material into robust containers to protect workers and the public has been ongoing at LANL and around the DOE complex for nearly two decades. The number of containers at LANL is around 5,000; limited resources for repac…
View article: Investigation of Luminescent Ceria as a Plutonium Oxide Simulant. Final Report
Investigation of Luminescent Ceria as a Plutonium Oxide Simulant. Final Report Open
Plutonium oxide powders from various production lines at Los Alamos National Laboratory are stored and transported in specially designed “SAVY-4000”, “Hagan”, or other containment systems. Cerium oxide powder has been used as a less-hazard…
View article: Liquid Metal Intrusion Testing Final Report
Liquid Metal Intrusion Testing Final Report Open
Los Alamos National Lab (LANL) is concerned about potential interactions between a tin-antimony pewter material used for localized radiation shielding and stainless-steel containers used for storage and movement of radioactive materials wh…
View article: An Investigation of Critical Pit Size in Savy 4000 Wall
An Investigation of Critical Pit Size in Savy 4000 Wall Open
The Department of Energy (DOE) issued DOE M 441.1-1, Nuclear Material Packaging Manual, in March 2008 to protect workers who handle nuclear material from exposure due to loss of containment of stored materials. The Manual specifies a detai…
View article: Guide for Joint Participation in a DOE Complex Wide SAVY-4000 Surveillance Program
Guide for Joint Participation in a DOE Complex Wide SAVY-4000 Surveillance Program Open
This document describes LANL Storage Program best practices when working with other User Sites to implement DOE M441.1-1 Manual requirements through the use of the SAVY nuclear material packaging system. It is a Manual directive for Field …
View article: Comparative Approach for Evaluating the Containment Performance of Legacy NM Storage Containers
Comparative Approach for Evaluating the Containment Performance of Legacy NM Storage Containers Open
Many different types of nuclear material storage containers are used throughout TA-55 and specifically PF-4, in some instances these containers are used outside of engineering control barriers in most cases these barriers are gloveboxes. W…
View article: Technical Basis: SAVY-4000 Series, 2 qt Container
Technical Basis: SAVY-4000 Series, 2 qt Container Open
The 2 qt SAVY nuclear material storage container is the latest in the SAVY-4000 series. The 2 qt design is identical to the 1 qt container, with the exception of an extended, deep-drawn body. Here, a technical basis using engineering equiv…