To address the current and future needs for nuclear materials management and safeguards information, Lawrence Livermore National Laboratory envisions an integrated nuclear information system that will support several functions. The vision is to link distributed information systems via a common communications infrastructure designed to address the information interdependencies between two major elements: Domestic, with information about specific nuclear materials and their properties, and International, with information pertaining to foreign nuclear materials, facility design and operations. The communication infrastructure will enable data consistency, validation and reconciliation, as well as provide a common access point and user interface for a broad range of nuclear materials information. Information may be transmitted to, from, and within the system by a variety of linkage mechanisms, including the Internet. Strict access control will be employed as well as data encryption and user authentication to provide the necessary information assurance. The system can provide a mechanism not only for data storage and retrieval, but will eventually provide the analytical tools necessary to support the U.S. government's nuclear materials management needs and non-proliferation policy goals.

This information represents SRS`s contribution of the DOE technology information network, an internet service coordinated out of Los Alamos. The information provided is strictly DOE-SR-titled and-issued patented technologies including environmental remediation, robotics, sensors, materials science, biomedical applications, hydrogen, and consumer products.

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In this paper we present experimental measurements and theoretical modeling of third harmonic (3{omega}) conversion efficiency with optical bandwidth. Third harmonic conversion efficiency drops precipitously as the input bandwidth significantly exceeds the phase matching limitations of the conversion crystals. For Type I/Type II frequency tripling, conversion efficiency be-gins to decrease for bandwidths greater than {approximately}60 GHz. However, conversion efficiency corresponding to monochromatic phase-matched beams can be recovered provided that the instantaneous Propagation vectors are phase matched at all times. This is achieved by imposing angular spectral dispersion (ASD) on the input beam via a diffraction grating, with a dispersion such that the phase mismatch for each frequency is zero. Experiments were performed on the Optical Sciences Laser (OSL), a 1--100 J class laser at LLNL. These experiments used a 200 GHz bandwidth source produced by a multipassed electro-optic phase modulator. The spectrum produced was composed of discrete frequency components spaced at 3 GHz intervals. Angular dispersion was incorporated by the addition of a 1200 gr/mm diffraction grating oriented at the Littrow angle, and capable of rotation about the beam direction. Experiments were performed with a pulse length of 1-ns and a 1{omega} input intensity of {approximately} 4 GW/cm{sup 2} for …

Naturally Occurring Radioactive Materials (NORM) is a common and costly contaminant of produced waters associated with natural gas production and exploration. One way of combating this problem is by identifying the problem beforehand. The approach to this problem involves development of NORM prediction capabilities based on the geological environment. During the third quarter of this project, emphasis was placed on three tasks; laboratory procedural development, continuance of preliminary geologic data acquisition, and the beginning of field testing of non-produced water sites. Laboratory procedures development included applications of pertinent EPA/Standard Methods, as well as continuing orientation with respect to radiation safety procedures and practices. In terms of progress on the geologic aspects of the project, compilation of relevant well data for the study area is in progress.

The top search in the dilepton and lepton plus jets channels with the Collider Detector at Fermilab is presented. The analysis uses a 67 pb{sup {minus}1} sample of p{bar p} collisions at 1.8 TeV. A 4.8{sigma} excess of candidate events establishes the existence of the top quark. The t{bar t} production cross section is measured to be {sigma}{sub t{bar t}} = 7.6{sub {minus}2.0}{sup +2.4} pb with branching Br(t {yields} Wb) = 0.87{sub {minus}0.30}{sup +0.13}(stat) {sub {minus}0.11}{sup +0.13}(syst). The measured mass is M{sub top} = 176{plus_minus}8{plus_minus}10 GeV.

The objective of this document is to propose a strategy for addressing applicable LDMM-related criteria in order to determine an allowable leakage volume for SSTs targeted for waste retrieval using sluicing. A strategy is required to work through the individual ALV criterion (and related issues) in a prioritized,orderly, and efficient manner. All components of the strategy are based upon LDMM-related issues, functions and requirements,and technology alternatives.

The objectives of the 1994 and 1995 wildlife and vegetation surveys were to gather data to be used for various applications including: (1) basewide Environmental Risk Assessment (ERA) Work Plan (Scoping Document), (2) the completion of the basewide ERA, (3) determining remedial activities, and (4) determining the distribution of state and federal list plant and animal species on Norton AFB. Data gathering included an inventory of plant and animal species present, the identification of potential ecological receptors, mapping of habitats, and constructing the ecological food web present on or near the IRP sites of concern.

TFTR experiments on the enhanced reversed shear (ERS) mode have demonstrated particle and ion thermal diffusivities in the region of negative shear which are equal to or less than the neoclassical values. Similar enhancements have been observed in reversed central shear discharges in the shaped DIII-D geometry. These results, if sustained over times long compared with current diffusion times, offer the opportunity of an improved reactor. We are modeling the evolution of the TFTR ERS mode using Corsica, a predictive 1-1/2 D equilibrium code. Similar modeling is being done for DIII-D; the common goal is to better understand the physics of the discharges in order to predict performance and eventually to provide a capability of real-time control of the profiles. Here we describe a first step in applying Corsica to the TFTR discharges. We first examine the equilibria generated in TRANSP, using the output pressure and safety factor, q, (or the parallel current) profiles to regenerate the magnetic equilibria. Two TRANSP options are used: (1) a minor radius- like coordinate is used as a flux surface label, or (2) toroidal flux is used to label the surfaces. Our equilibria agree much better with option (1) than (2). However, we still …

This report contains tables of the analytical results from sampling tank 241-U-109 using two types of samplers. Activity levels of radionuclides are tabulated. This tank has been on the Hydrogen Watch List.

Acoustic sources found in the ocean environment are spatially complex and broadband, complicating the analysis of received acoustic data considerably. A model-based approach is developed for a broadband source in a shallow ocean environment characterized by a normal-mode propagation model. Here we develop the optimal Bayesian solution to the broadband pressure-field enhancement and modal function extraction problem.

These test procedures are written to meet the procedural needs of the Test Plan for immobilization of salt containing surrogate mixed waste using polymer resins, HNF-SD-RE-TP-026 and to ensure adequacy of conduct and collection of samples and data. This testing will demonstrate the use of four different polyester vinyl ester resins in the solidification of surrogate liquid and dry wastes, similar to some mixed wastes generated by DOE operations.

This engineering study evaluates the availability of electric power from the existing 13.8 kV substation, BPA 115 kV system,and RL 230 kV transmission line; for supporting the Privatization Phase I Facilities. 230 kV system is a preferable alternative.

The goal of this CRADA was the continued research and development by LLNL, and the commercialization by EOSystems, Inc., of the waste treatment technology known as Mediated Electrochemical Oxidation. MEO is a non-thermal electrochemical technology developed in part at LLNL for the destruction of organic waste streams; this technology has wide applications in the government, manufacturing, biomedical and industrial sectors. The system uses an electrochemical cell to generate highly oxidizing {open_quote}mediators{close_quote} in an acidic aqueous solution, which subsequently react with organic waste and convert it to carbon dioxide and water. The broad research responsibilities of LLNL in this CRADA were the investigation of numerous cell electrode materials and materials of construction, the evaluation of the process chemistry, and the testing of a flow visualization cell and a functional prototype. Major deliverables included: a determination of suitable electrode materials, an investigation of the destruction efficiency for numerous organic substrates, the construction and testing of a flow visualization cell, and the testing of a functional prototype commercial cell. The responsibilities of EOSystems included the definition of the market and potential customers, the design and engineering of the flow visualization and prototype cells, and the commercialization of the MEO units. Deliverables included the …

A small research group at the Florida Solar Energy Center has been working for several years to perform research and other work in support of U.S. Department of Energy and State of Florida energy efficiency objectives in the area of windows, skylights, clerestories, and other glazed apertures in buildings, generically called fenestrations. This work includes not only thermal energy transfer through fenestration systems but also the controlled introduction of daylight illumination for the displacement of electric lighting energy. Work in the last few years has focused almost entirely on providing technical support to the National Fenestration Rating Council`s program to introduce energy performance rating and labelling of windows into the United States. This work has included a variety of activities. (1) Annual energy performance simulations aimed at determining the relative performances of a variety of residential window and glazing options for different climates. (2) Evaluation of Lawrence Berkeley Laboratory reports and software products in the area of fenestrations. (3) Development of better computational tools for predicting the solar spectral irradiance incident on fenestration systems and contributing to solar radiant heat gain, and the effects of exterior shading. (4) Service on various committees and task groups of the NFRC as well …

As a result of these meetings, the Geologic Review Group made suggestions and recommendations on radioactive waste repository sites, covering priorities for needed data on rock types, retrievable storage, use of Nevada Test Site, non-salt rock types, etc.

We are in the process of developing and building the ``Mercury`` laser system as the first in a series of a new generation of diode-pumped solid-state Inertial Confinement Fusion (ICF) lasers at LLNL. Mercury will be the first integrated demonstration of a scalable laser architecture compatible with advanced high energy density (HED) physics applications. Primary performance goals include 10% efficiencies at 10 Hz and a 1-10 ns pulse with 1{omega} energies of 100 J and with 2{omega}/3{omega} frequency conversion.

High-fired PuO{sub 2}, RFP ash heels, and synthetic RFP incinerator ash were easily soluble after oxidation of Pu(IV) to Pu(VI) by heating with Na{sub 2}O{sub 2} or KO{sub 2} to 450{degrees} for two hours. This offers a route to the recovery of Pu from these and similar PuO{sub 2}-bearing solids that can be carried out in present equipment. Evidence for new compounds K{sub 2}PuO{sub 4}, K{sub 4}PuO{sub 5} and K{sub 6}PuO{sub 6} is presented. A process for recovery of Pu from RFP incinerator ash is presented.

This report describes a series of hydrothermal experiments using crushed tuff from the Topopah Spring Member and natural ground water from well J-13. The purpose of these experiments is to define the changes in water chemistry that would result from temperature changes caused by emplacing high-level nuclear waste in a repository in the Topopah Spring tuff. Experiments were conducted at 120{sup 0}C in Teflon-lined reaction vessels at four separate rock-to-water ratios and for reaction times up to 72 days. The composition of evaporite deposits contained in the pores of the surface-outcrop rock material used in these experiments is determined from solution compositions resulting from treatment of the rock before the start of the experiments. Results from the experiments at 120{sup 0}C are compared with previous experimental results from hydrothermal reaction of the Topopah Spring tuff with J-13 water at 90 and 150{sup 0}C. The main conclusion that can be drawn from this work is that changes in the water chemistry due to heating of the rock-water system can be expected to be very minor. There is no significant source of anions (F{sup -}, Cl{sup -}, NO{sub 3}{sup -}, or SO{sub 4}{sup 2-}) in the rock; solution anion compositions after reaction …

A high sensitivity, CO{sub 2} lidar detector, based on recent advances in ultra-low noise, readout integrated circuits (ROIC), is being developed. This detector will combine a high speed, low noise focal plane array (FPA) with a dispersive grating spectrometer. The spectrometer will filter the large background flux, thereby reducing the limiting background photon shot noise. In order to achieve the desired low noise levels, the HgCdTe FPA will be cooled to {approximately}50K. High speed, short pulse operation of the lidar system should enable the detector to operate with the order of a few noise electrons in the combined detector/ ROIC output. Current receiver design concepts will be presented, along with their expected noise performance.

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Final Report for tank 241-BY-105 rotary and push mode core 108.

It is not uncommon for remote sensing systems to produce in excess of 100 Mbytes/sec. Los Alamos National Laboratory designed a reconfigurable computer to tackle the signal and image processing challenges of high bandwidth sensors. Reconfigurable computing, based on field programmable gate arrays, offers ten to one hundred times the performance of traditional microprocessors for certain algorithms. This paper discusses the architecture of the computer and the source of performance gains, as well as an example application. The calculation of multiple matched filters applied to multispectral imagery, showing a performance advantage of forty-five over Pentium II (450 MHz), is presented as an exemplar of algorithms appropriate for this technology.

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