Laser isotope separation in nuclear-waste by-product utilization

Various by-products in spent nuclear fuels including strategic metals are uniquely useful and of high intrinsic value. Isotope separation is necessary to achieve the full benefits of fission-product partitioning, increasing the specific activity of radioactive modifications or reducing the intrinsic radiation associated with various elements. The atomic-vapor laser-isotope-separation process, under large-scale development for uranium enrighment, applies to most of the spent-fuel nuclides and offers attractive benefit to costs. 11 figures

Research proposal on certain atomic physics measurements associated with the laser isotope separation method

Research proposed in the following areas are briefly described: the measurement of photoionization cross sections near threshold for the excited states of uranium; measurement of the symmetric charge exchange cross section; and measurement of chemiionization cross sections for electronically excited uranium atoms

Summary of the cost analysis report for the long-term management of depleted uranium hexafluoride

This report is a summary of the Cost Analysis Report which provides comparative cost data for the management strategy alternatives. The PEIS and the Cost Analysis Report will help DOE select a management strategy. The Record of Decision, expected in 1998, will complete the first part of the Depleted Uranium Hexafluoride Management Program. The second part of the Program will look at specific sites and technologies for carrying out the selected strategy. The Cost Analysis Report estimates the primary capital and operating costs for the different alternatives. It reflects the costs of technology development construction of facilities, operation, and decontamination and decommissioning. It also includes potential revenues from the sale of by-products such as anhydrous hydrogen fluoride (ABF). These estimates are based on early designs. They are intended to help in comparing alternatives, rather than to indicate absolute costs for project budgets or bidding purposes. More detailed estimates and specific funding sources will be considered in part two of the Depleted Uranium Hexafluoride Management Program

Characterization of options and their analysis requirements for the long-term management of depleted uranium hexafluoride

The Department of Energy (DOE) is examining alternative strategies for the long-term management of depleted uranium hexafluoride (UF{sub 6}) currently stored at the gaseous diffusion plants at Portsmouth, Ohio, and Paducah, Kentucky, and on the Oak Ridge Reservation in Oak Ridge, Tennessee. This paper describes the methodology for the comprehensive and ongoing technical analysis of the options being considered. An overview of these options, along with several of the suboptions being considered, is presented. The long-term management strategy alternatives fall into three broad categories: use, storage, or disposal. Conversion of the depleted UF6 to another form such as oxide or metal is needed to implement most of these alternatives. Likewise, transportation of materials is an integral part of constructing the complete pathway between the current storage condition and ultimate disposition. The analysis of options includes development of pre-conceptual designs; estimates of effluents, wastes, and emissions; specification of resource requirements; and preliminary hazards assessments. The results of this analysis will assist DOE in selecting a strategy by providing the engineering information necessary to evaluate the environmental impacts and costs of implementing the management strategy alternatives

Strategic Enterprise Architectures

Part 2: Regular PapersInternational audienceEnterprise models are useful managerial tools for decision making and control, supporting the planning and design of enterprise strategic objectives as well as day-to-day operations. Although much research on the topic has been carried out since the 80s, most approaches offer rudimentary support for the representation of goal-related concepts, focusing either on the representation of strategic or operational goals, lacking a comprehensive ontology for goals. In contrast, this paper is interested in: (a) delineating differences between various shades of goals (mission, vision, strategic, tactical and operational goals) and operations, (b) proposing a hierarchical architecture for strategic enterprise models that includes goals and the operations/processes through which they are operationalized and (c) offering methodological guidelines on how to elaborate such models