BCP selector valves and limit switches (open access)

BCP selector valves and limit switches

This Acceptance Test Procedure (ATP) has been prepared to demonstrate that the Electrical/Instrumentation systems for the BCP stream function as required by project criteria. Specifically, the test will verify the operation of the solenoid valves and associated limit switches installed for the BCP portion of W-OO7H. This equipment is part of the B-Plant Process Condensate Treatment Facility.
Date: January 9, 1995
Creator: Rippy, G. L.
Object Type: Report
System: The UNT Digital Library
Spectroscopy and decay kinetics of Pr{sup 3+}-doped chloride crystals for 1300-nm optical amplifiers (open access)

Spectroscopy and decay kinetics of Pr{sup 3+}-doped chloride crystals for 1300-nm optical amplifiers

Several Pr{sup 3+}-doped chloride crystals have been tested spectroscopically for suitability as 1300-nm optical amplifiers operating on the {sup 1}G{sub 4} - {sup 3}H{sub 5} transition. {sup 1}G{sub 4} lifetimes are much longer than in fluoride hosts, ranging up to 1300 {mu}sec and suggesting a near-unity luminescence quantum yield. Emission spectra are typically broad (FWHM {approximately} 70 nm) and include the 1310-nm zero-dispersion wavelength of standard telecommunications fiber.
Date: March 9, 1995
Creator: Page, R.H.; Schaffers, K.I. & Wilke, G.D.
Object Type: Article
System: The UNT Digital Library
A search for optical counterparts of gamma-ray bursts. Final report (open access)

A search for optical counterparts of gamma-ray bursts. Final report

Gamma Ray Bursts (GRBS) are mysterious flashes of gamma rays lasting several tens to hundreds of seconds that occur approximately once per day. NASA launched the orbiting Compton Gamma Ray Observatory to study GRBs and other gamma ray phenomena. CGRO carries the Burst and Transient Experiment (BATSE) specifically to study GRBS. Although BATSE has collected data on over 600 GRBS, and confirmed that GRBs are localized, high intensity point sources of MeV gamma rays distributed isotropically in the sky, the nature and origin of GRBs remains a fundamental problem in astrophysics. BATSE`s 8 gamma ray sensors located on the comers of the box shaped CGRO can detect the onset of GRBs and record their intensity and energy spectra as a function of time. The position of the burst on the sky can be determined to < {plus_minus}10{degrees} from the BATSE data stream. This position resolution is not sufficient to point a large, optical telescope at the exact position of a GRB which would determine its origin by associating it with a star. Because of their brief duration it is not known if GRBs are accompanied by visible radiation. Their seemingly large energy output suggests thatthis should be. Simply scaling the …
Date: March 9, 1995
Creator: Park, Hye-Sook
Object Type: Report
System: The UNT Digital Library
Spent Nuclear Fuel Project Configuration Management Plan (open access)

Spent Nuclear Fuel Project Configuration Management Plan

This document is a rewrite of the draft ``C`` that was agreed to ``in principle`` by SNF Project level 2 managers on EDT 609835, dated March 1995 (not released). The implementation process philosphy was changed in keeping with the ongoing reengineering of the WHC Controlled Manuals to achieve configuration management within the SNF Project.
Date: June 9, 1995
Creator: Reilly, M. A.
Object Type: Report
System: The UNT Digital Library
Capacitive deionization of water: An innovative new process (open access)

Capacitive deionization of water: An innovative new process

The capacitive deionization of water with a stack of carbon aerogel electrodes has been successfully demonstrated for the first time. Unlike ion exchange, one of the more conventional deionization processes, no chemicals were required for regeneration of the system. Electricity was used instead. Water with various anions and cations was pumped through the electrochemical cell. After polarization, ions were electrostatically removed from the water and held in the electric double layers formed at electrode surfaces. The water leaving the cell was purified, as desired.
Date: January 9, 1995
Creator: Farmer, J.; Fix, D. & Mack, G.
Object Type: Article
System: The UNT Digital Library
Tank characterization report for Double-Shell Tank 241-SY-102 (open access)

Tank characterization report for Double-Shell Tank 241-SY-102

This tank characterization report presents an overview of Double-Shell Tank 241-SY-102 (hereafter, Tank 241-SY-102) and its waste contents. It provides estimated concentrations and inventories for the waste components based on the latest sampling and analysis activities and background tank information. This report describes the results of three sampling events. The first core sample was taken in October 1988. The tank supernate and sludge were next core sampled in February and March of 1990 (Tingey and Sasaki 1995). A grab sample of the supernate was taken in March of 1994. Tank 241-SY-102 is in active service and can be expected to have additional transfers to and from the tank that will alter the composition of the waste. The concentration and inventory estimates reported in this document no longer reflect the exact composition of the waste but represent the best estimates based on the most recent and available data. This report supports the requirements of the Hanford Federal Facility Agreement and Consent Order Milestone M-44-08 (Ecology, EPA, DOE 1994).
Date: June 9, 1995
Creator: DiCenso, A.T.; Amato, L. C. & Winters, W. I.
Object Type: Report
System: The UNT Digital Library
Sorption and chemical transformation of PAH`s on coal fly ash (open access)

Sorption and chemical transformation of PAH`s on coal fly ash

The major objective of this work was to characterize the interactions of coal fly ash with polycyclic aromatic hydrocarbons (PAHS) and their derivatives, and to attempt to understand the influence of the surface properties of coal ash (and other atmospheric particles) on the chemical transformations of polycyclic aromatic compounds. Our studies have concentrated on the photochemical behavior of PAHs sorbed form the vapor phase on coal fly ashes, and compositional subfractions obtained therefrom. The PAHs are deposited onto the fly ash substrates from the vapor phase, using apparatus and techniques developed in this laboratory in order to simulate, as closely as possible under laboratory conditions, the processes by which PAHs deposit onto fly ash particles in the atmosphere. In this report phototransformation of pyrene sorbed on fly ash fractions, and phototransformations of 1-nitropyrene sorbed on fly ash fractions are discussed.
Date: May 9, 1995
Creator: Mamantov, G. & Wehry, E. L.
Object Type: Report
System: The UNT Digital Library
Effects of ethanol on small engines and the environment (open access)

Effects of ethanol on small engines and the environment

With the support of the Missouri Corn Merchandising Council and the Department of Energy, Northwest Missouri State University conducted an applied research project to investigate the effects of the commercially available ethanol/gasoline fuel blend on small engines. The study attempted to identify any problems when using the 10% ethanol/gasoline blend in engines designed for gasoline and provide solutions to the problems identified. Fuel economy, maximum power, internal component wear, exhaust emissions and engine efficiency were studied.
Date: January 9, 1995
Creator: Bettis, M. D.
Object Type: Report
System: The UNT Digital Library
Position paper: Live load design criteria for Project W-236A Multi-Function Waste Tank Facility (open access)

Position paper: Live load design criteria for Project W-236A Multi-Function Waste Tank Facility

The purpose of this paper is to discuss the live loads applied to the underground storage tanks of the Multi Function Waste Tank Facility, and to provide the basis for Project W-236A live load criteria. Project 236A provides encompasses building a Weather Enclosure over the two underground storage tanks at the 200-West area. According to the Material Handling Study, the Groves AT 1100 crane used within the Weather Enclosure will have a gross vehicle weight of 66.5 tons. Therefore, a 100-ton concentrated live load is being used for the planning of the construction of the Weather Enclosure.
Date: June 9, 1995
Creator: Giller, R.A.
Object Type: Report
System: The UNT Digital Library
Feasibility of organo-beryllium target mandrels using organo-germanium PECVD as a surrogate (open access)

Feasibility of organo-beryllium target mandrels using organo-germanium PECVD as a surrogate

Inertial Confinement Fusion capsules incorporating beryllium are becoming attractive for use in implosion experiments designed for modest energy gain. This paper explores the feasibility of chemical vapor deposition of organo-beryllium precursors to form coating materials of interest as ablators and fuel containers. Experiments were performed in a surrogate chemical system utilizing tetramethylgermane as the organometallic precursor. Coatings with up to 60 mole percent germanium were obtained. These coatings compare favorably with those previously reported in the literature and provide increasing confidence that a similar deposition process with an organo-beryllium precursor would be successful.
Date: March 9, 1995
Creator: Brusasco, R.M.; Dittrich, T. & Cook, R.C.
Object Type: Article
System: The UNT Digital Library
105-KE Basin isolation barrier leak rate test analytical development. Revision 1 (open access)

105-KE Basin isolation barrier leak rate test analytical development. Revision 1

This document provides an analytical development in support of the proposed leak rate test of the 105-KE Basin. The analytical basis upon which the K-basin leak test results will be used to determine the basin leakage rates is developed in this report. The leakage of the K-Basin isolation barriers under postulated accident conditions will be determined from the test results. There are two fundamental flow regimes that may exist in the postulated K-Basin leakage: viscous laminar and turbulent flow. An analytical development is presented for each flow regime. The basic geometry and nomenclature of the postulated leak paths are denoted.
Date: May 9, 1995
Creator: Irwin, J. J.
Object Type: Report
System: The UNT Digital Library
Dose rate estimates in the first optical enclosure due to particle beam loss in the insertion device transition region during injection (open access)

Dose rate estimates in the first optical enclosure due to particle beam loss in the insertion device transition region during injection

The particle beam, during injection into the storage ring, can be partly lost in one of the transition regions between the storage-ring vacuum chamber and the insertion-device (ID) straight section. The transition region is a copper interface between a standard aluminum vacuum chamber and an insertion-device vacuum chamber. This can be a problem, at least in the first few insertion devices where the injected beam is still unstable. It may create higher photon and neutron dose rates in the first optical enclosures of the upstream ID beamlines adjacent to this region. This report presents the results of the dose rate estimates for such an event and some recommendations for mitigation.
Date: May 9, 1995
Creator: Job, P. K. & Moe, H. J.
Object Type: Report
System: The UNT Digital Library
Model-based internal wave processing (open access)

Model-based internal wave processing

A model-based approach is proposed to solve the oceanic internal wave signal processing problem that is based on state-space representations of the normal-mode vertical velocity and plane wave horizontal velocity propagation models. It is shown that these representations can be utilized to spatially propagate the modal (dept) vertical velocity functions given the basic parameters (wave numbers, Brunt-Vaisala frequency profile etc.) developed from the solution of the associated boundary value problem as well as the horizontal velocity components. Based on this framework, investigations are made of model-based solutions to the signal enhancement problem for internal waves.
Date: June 9, 1995
Creator: Candy, J. V. & Chambers, D. H.
Object Type: Article
System: The UNT Digital Library
Nonlinear image filtering within IDP++ (open access)

Nonlinear image filtering within IDP++

IDP++, image and data processing in C++, is a set of a signal processing libraries written in C++. It is a multi-dimension (up to four dimensions), multi-data type (implemented through templates) signal processing extension to C++. IDP++ takes advantage of the object-oriented compiler technology to provide ``information hiding.`` Users need only know C, not C++. Signals or data sets are treated like any other variable with a defined set of operators and functions. We here some examples of the nonlinear filter library within IDP++. Specifically, the results of MIN, MAX median, {alpha}-trimmed mean, and edge-trimmed mean filters as applied to a real aperture radar (RR) and synthetic aperture radar (SAR) data set.
Date: February 9, 1995
Creator: Lehman, S.K.; Wieting, M.G. & Brase, J.M.
Object Type: Article
System: The UNT Digital Library
Properties of a new average power Nd-doped phosphate laser glass (open access)

Properties of a new average power Nd-doped phosphate laser glass

The Nd-doped phosphate laser glass described herein can withstand 2.3 times greater thermal loading without fracture, compared to APG-1 (commercially-available average-power glass from Schott Glass Technologies). The enhanced thermal loading capability is established on the basis of the intrinsic thermomechanical properties and by direct thermally-induced fracture experiments using Ar-ion laser heating of the samples. This Nd-doped phosphate glass (referred to as APG-t) is found to be characterized by a 29% lower gain cross section and a 25% longer low-concentration emission lifetime.
Date: March 9, 1995
Creator: Payne, S. A.; Marshall, C. D.; Bayramian, A. J.; Wilke, G. D. & Hayden, J. S.
Object Type: Article
System: The UNT Digital Library
Low efficiency gratings for 3rd harmonic diagnostics applications (open access)

Low efficiency gratings for 3rd harmonic diagnostics applications

The baseline design of the National Ignition Facility (NIF) calls for sampling gratings to provide third-harmonic energy diagnostics in the highly constrained area of the target chamber. These 40 {times} 4O cm transmission gratings are to diffract at (order +1) nominally 0.3% of the incident 351 run light at a small angle on to a focusing mirror and into a calorimeter. The design calls for a plane grating of 500 lines/mm, and approximately 30 run deep, etched into a fused silica focusing lens and subsequently overcoated with a solgel anti reflective coating. Gratings of similar aperture and feature size have been produced for other applications by ion etching processes, but, in an effort to reduce substantially the cost of such optics, we are studying the feasibility of making these gratings by wet chemical etching techniques. Experimentation with high-quality fused silica substrates on 5 and 15 cm. scale has led to a wet etching process which can meet the design goals and which offers no significant scaleup barriers to full sized optics. The grating is produced by holographic exposure and a series of processing steps using only a photoresist mask and a final hydrofluoric acid etch. Gratings on 15 cm diameter …
Date: August 9, 1995
Creator: Britten, J. A.; Boyd, R. D.; Perry, M. D.; Shore, B. W. & Thomas, I. M.
Object Type: Article
System: The UNT Digital Library
Continuous contour phase plates for tailoring the focal plane irradiance profile (open access)

Continuous contour phase plates for tailoring the focal plane irradiance profile

We present fully continuous phase screens for producing super-Gaussian focal-plane irradiance profiles. Such phase screens are constructed with the assumption of either circular symmetric near-field and far-field profiles or a separable phase screen in Cartesian co-ordinates. In each case, the phase screen is only a few waves deep. Under illumination by coherent light, such phase screens produce high order super-Gaussian profiles in the focal plane with high energy content effects of beam aberrations on the focal profiles and their energy content are also discussed.
Date: August 9, 1995
Creator: Dixit, S. N.; Rushford, M. C.; Thomas, I. M. & Perry, M. D.
Object Type: Article
System: The UNT Digital Library
Effect of ELMs on the SOL plasma in DIII-D (open access)

Effect of ELMs on the SOL plasma in DIII-D

We have studied the evolution of the edge plasma in VH-mode discharges in DIII-D as the discharge evolves from the ELM-free H-mode phase through the VH-mode phase to the final ELMing H-mode phase, by following the changes in the radial profiles of the density and temperature, in the core plasma near the separatrix and in the scrape-off-layer (SOL) plasma outside the separatrix. The electron density and temperature profiles in the SOL do not show any significant difference between the ELM-free H-mode and VH-mode phases. In the ELMing phase, the, density profile broadens during an ELM, forming a high density (n{sub e} > 1 x 10{sup 19}/m{sup 3}) plateau that extends out into the SOL to the limit of the measurement. This density plateau persists between the ELMs, although the density in the SOL does relax somewhat between the ELMs, with a characteristic time that can be larger than ten milliseconds, much longer than the sonic particle flow time to the divertor plates. The time average density scale length measured at the separatrix increases by about a factor of two after the ELMs begin. This density scale length increases with the ELM background, as measured by the photo-diodes nearest to, but …
Date: May 9, 1995
Creator: Jong, R. A.; Porter, G. D. & Groebner, R. J.
Object Type: Article
System: The UNT Digital Library
An Estimate on the Effects of Triplet Magnet Misalignments in RHIC (open access)

An Estimate on the Effects of Triplet Magnet Misalignments in RHIC

None
Date: October 9, 1995
Creator: J., Wei; Harrison, M.; Peggs, S.; Thompson, P.A. & Trbojevic, D.
Object Type: Report
System: The UNT Digital Library
Design of a mid-IR immersion echelle grating spectrograph for remote sensing (open access)

Design of a mid-IR immersion echelle grating spectrograph for remote sensing

We describe the design of a silicon immersion grating spectrograph for the remote detection of chemicals in the atmosphere. The instrument is designed to operate in the two atmospheric windows from 2.3 to 2.5 and 2.8 and 4.2 microns at a resolution of 0.1 cm{sup {minus}1}. This is achieved by cross dispersing a high order silicon immersion echelle (13.5 grooves/mm) and a first order concave grating operating in a reflective configuration to generate a two-dimensional spectrum in the image plane with diffraction limited performance.
Date: May 9, 1995
Creator: Thomas, N.L.; Lewis, I.T. & Stevens, C.G.
Object Type: Article
System: The UNT Digital Library
Multi-Function Waste Tank Facility phase out basis. Revision 2 (open access)

Multi-Function Waste Tank Facility phase out basis. Revision 2

Additional double-shell tank storage capacity is not needed until FY 2004 or later. The waste volume in the current baseline program can be managed within the existing tank capacity. However, this requires implementation of some risk management actions and significant investment in software and hardware to accomplish the actions necessary to maximize use of existing storage tank space.
Date: June 9, 1995
Creator: Awadalla, N. G.
Object Type: Report
System: The UNT Digital Library
THERMAL EVALUATION OF THE CONCEPTUAL 40 BWR MULTI-PURPOSE CANISTER (MPC) WITH ACD DISPOSAL CONTAINER (SCPB: N/A) (open access)

THERMAL EVALUATION OF THE CONCEPTUAL 40 BWR MULTI-PURPOSE CANISTER (MPC) WITH ACD DISPOSAL CONTAINER (SCPB: N/A)

This analysis is prepared by the Mined Geologic Disposal System (MGDS) Waste Package Development Department (WPDD) as specified in the Waste Package Implementation Plan and Waste Package Plan. The design data request addressed herein is: (1) Characterize the conceptual 40 BWR Multi-Purpose Canister (MPC) Waste Package (WP) design to show that the design is feasible for use in the MGDS environment. The purpose of this analysis is to respond to a concern that the long-term disposal thermal issues for the Multi-Purpose Canister (MPC) Subsystem Design do not preclude MPC compatibility with the MGDS. The objective of this analysis is to provide thermal parameter information for the conceptual MPC design with disposal container under nominal MGDS repository conditions. The results are intended to show that the design has a reasonable chance to meet the MGDS design requirements for normal MGDS operation and to provide the required guidance to determining the major design issues for future design efforts. Future design efforts focus on specific MPC vendor design when they become available.
Date: November 9, 1995
Creator: Lotz, T.L.
Object Type: Report
System: The UNT Digital Library
Yb{sup 3+}:BaCaBO{sub 3}F: A potential new self-frequency-doubling laser material (open access)

Yb{sup 3+}:BaCaBO{sub 3}F: A potential new self-frequency-doubling laser material

Yb:BaCaBO{sub 3}F (Yb:BCBF) has been investigated as a new laser crystal with potential for self-frequency-doubling. An YB:BCBF laser has been pumped at 912 mm, and a measured slope efficiency of 38% has been obtained for the fundamental laser output at 1034 nm. Single crystal powders of BCBF have been compared with K*P for a relative measure of the second harmonic generating potential, yielding d{sub eff}[BCBF]= (0-66)d{sub eff}[K*P]. The growth, spectroscopy, laser performance, and linear and nonlinear optical properties of YB:BCBF are reported here.
Date: March 9, 1995
Creator: Schaffers, K. I.; DeLoach, L. D.; Ebbers, C. A. & Payne, S. A.
Object Type: Article
System: The UNT Digital Library
Legal aspects of national implementation of the Chemical Weapons Convention national authority provisions. Workshop I: The National Authority (open access)

Legal aspects of national implementation of the Chemical Weapons Convention national authority provisions. Workshop I: The National Authority

This seminar is an excellent opportunity for all attendees to learn from each other about how the Chemical Weapons Convention (CWC) can become a foundation of arms control in Africa and around the world. The author discusses legal aspects of implementing the CWC`s national authority provisions. These implementing measures are universal, applying not only to the few States Parties that will declare and destroy chemical weapons, but also to the many States Parties that have never had a chemical weapons programme. This new need for national measures to implement multilateral arms control agreements has generated unease due to a perception that implementation may be burdensome and at odds with national law. In 1993, concerns arose that the complexity of integrating the treaty with national law would cause each nation to effectuate the Convention without regard to what other nations were doing, thereby engendering significant disparities in implementation steps among States Parties. As a result, the author prepared the Manual for National Implementation of the Chemical Weapons Convention late last year and presented it to each national delegation at the December 1993 meeting of the Preparatory Commission in The Hague. Here the author discusses progress among several States in actually developing …
Date: May 9, 1995
Creator: Tanzman, E. A. & Kellman, B.
Object Type: Article
System: The UNT Digital Library