TITLE III EVALUATION REPORT FOR THE SUBSURFACE LIGHTING SYSTEM (open access)

TITLE III EVALUATION REPORT FOR THE SUBSURFACE LIGHTING SYSTEM

The objective of this evaluation is to provide recommendations to ensure consistency between the technical baseline requirements, baseline design, and the as-constructed Subsurface Lighting System. Recommendations for resolving discrepancies between the as-constructed system, and the technical baseline requirements are included in this report. Cost and Schedule estimates are provided for all recommended modifications. This report does not address items which do not meet current safety or code requirements. These items are identified to the CMO and immediate action is taken to correct the situation. The report does identify safety and code items for which the A/E is recommending improvements. The recommended improvements will exceed the minimum requirements of applicable code and safety guide lines. These recommendations are intended to improve and enhance the operation and maintenance of the facility.
Date: September 9, 1998
Creator: Fernandez, L.J.
Object Type: Report
System: The UNT Digital Library
Tank waste remediation system retrieval and disposal mission key enabling assumptions (open access)

Tank waste remediation system retrieval and disposal mission key enabling assumptions

An overall systems approach has been applied to develop action plans to support the retrieval and immobilization waste disposal mission. The review concluded that the systems and infrastructure required to support the mission are known. Required systems are either in place or plans have been developed. An analysis of the programmatic, management and technical activities necessary to declare Readiness to Proceed with execution of the mission demonstrates that the system, people, and hardware will be on line and ready to support the private contractors. The systems approach included defining the retrieval and immobilized waste disposal mission requirements and evaluating the readiness of the TWRS contractor to supply waste feed to the private contractors in June 2002. The Phase 1 feed delivery requirements from the Private Contractor Request for Proposals were reviewed, transfer piping routes were mapped on it, existing systems were evaluated, and upgrade requirements were defined. Technical Basis Reviews were completed to define work scope in greater detail, cost estimates and associated year by year financial analyses were completed. Personnel training, qualifications, management systems and procedures were reviewed and shown to be in place and ready to support the Phase 1B mission. Key assumptions and risks that could negatively …
Date: January 9, 1998
Creator: Baldwin, J. H.
Object Type: Report
System: The UNT Digital Library
Tank 241-SX-106, cores 223 and 224, analytical results for the final report (open access)

Tank 241-SX-106, cores 223 and 224, analytical results for the final report

This report is a compilation of the analytical results for tank 241-SX-106, cores 223 and 224.
Date: June 9, 1998
Creator: Steen, F. H.
Object Type: Report
System: The UNT Digital Library
Management assessment of tank waste remediation system contractor readiness to proceed with phase 1B privatization (open access)

Management assessment of tank waste remediation system contractor readiness to proceed with phase 1B privatization

This Management Assessment of Tank Waste Remediation System (TWRS) Contractor Readiness to Proceed With Phase 1B Privatization documents the processes used to determine readiness to proceed with tank waste treatment technologies from private industry, now known as TWRS privatization. An overall systems approach was applied to develop action plans to support the retrieval and disposal mission of the TWRS Project. The systems and infrastructure required to support the mission are known. Required systems are either in place or plans have been developed to ensure they exist when needed. Since October 1996 a robust system engineering approach to establishing integrated Technical Baselines, work breakdown structures, tank farms organizational structure and configurations, work scope, and costs has become part of the culture within the TWRS Project. An analysis of the programmatic, management, and technical activities necessary to declare readiness to proceed with execution of the mission demonstrates that the system, personnel, and hardware will be on-line and ready to support the private contractors. The systems approach included defining the retrieval and disposal mission requirements and evaluating the readiness of the Project Hanford Management Contract (PHMC) team to support initiation of waste processing by the private contractors in June 2002 and to receive …
Date: January 9, 1998
Creator: Honeyman, J. O.
Object Type: Report
System: The UNT Digital Library
Tank waste remediation system retrieval and disposal mission readiness-to-proceed memorandum (open access)

Tank waste remediation system retrieval and disposal mission readiness-to-proceed memorandum

This memorandum provides a summary of PHMC (Project Hanford Management Contract) team work scope for the Phase 1 TWRS Retrieval and Disposal Mission, a declaration of readiness-to proceed, a summary of the PHMC readiness evaluation process, summary results of a structured independent appraisal and financial analysis including information associated with assumptions, risks, and recommendations and, a summary of program plans for the PHMC team`s component of the Phase 1 Mission.
Date: January 9, 1998
Creator: Jordan, K. N.
Object Type: Report
System: The UNT Digital Library
Tank waste remediation system retrieval and disposal mission readiness-to-proceed guidance and requirements to deliverables crosswalk (open access)

Tank waste remediation system retrieval and disposal mission readiness-to-proceed guidance and requirements to deliverables crosswalk

Before RL can authorize proceeding with Phase 1B, the PHMC team must demonstrate its readiness to retrieve and deliver the waste to the private contractors and to receive and dispose of the products and byproducts returned from the treatment. The PHMC team has organized their plans for providing these vitrification-support services into the Retrieval and Disposal Mission within the Tank Waste Remediation System (TWRS) Program.
Date: January 9, 1998
Creator: Hall, C. E.
Object Type: Report
System: The UNT Digital Library
Tank waste remediation system retrieval and disposal mission phase 1 financial analysis (open access)

Tank waste remediation system retrieval and disposal mission phase 1 financial analysis

The purpose of the Tank Waste Remediation System (TWRS) Retrieval and Disposal Mission Phase 1 Financial Analysis is to provide a quantitative and qualitative cost and schedule risk analysis of HNF-1946, Tank Waste Remediation System Retrieval and Disposal Mission Initial Updated Baseline (Swita et al. 1998). The Updated Baseline (Section 3.0) is compared to the current TWRS Project Multi-Year Work Plan (MYWP) for fiscal year (FY) 1998 and target budgets for FY 1999 through FY 2011 (Section 4.1). The analysis then evaluates the executability of HNF-1946 (Sections 4.2 through 4.5) and recommends a path forward for risk mitigation (Sections 4.6, 4.7, and 5.0). A sound systems engineering approach was applied to understand and analyze the Phase 1B Retrieval and Disposal mission. Program and Level 1 Logics were decomposed to Level 8 of the Work Breakdown Structure (WBS) where logic was detailed, scope was defined, detail durations and estimates prepared, and resource loaded schedules developed. Technical Basis Review (TBR) packages were prepared which include this information and, in addition, defined the enabling assumptions for each task, and the risks associated with performance. This process is discussed in Section 2.1. Detailed reviews at the subactivity within the Level 1 Logic TBR levels …
Date: January 9, 1998
Creator: Wells, M. W.
Object Type: Report
System: The UNT Digital Library
Procedures and acceptance criteria for PAS-1 cask inspections (open access)

Procedures and acceptance criteria for PAS-1 cask inspections

The procedures and acceptance criteria that comprise this document were prepared to support a one-time test to certify two PAS-1 casks in accordance with US Department of Energy Certificate of Compliance US A/9184/B(U), which was issued in 1998. The specific inspections addressed in this document are the visual weld inspection and a dimensional inspection of the primary containment vessel.
Date: September 9, 1998
Creator: Mercado, J. E.
Object Type: Report
System: The UNT Digital Library
Tank waste remediation system mission analysis report (open access)

Tank waste remediation system mission analysis report

This document describes and analyzes the technical requirements that the Tank Waste Remediation System (TWRS) must satisfy for the mission. This document further defines the technical requirements that TWRS must satisfy to supply feed to the private contractors` facilities and to store or dispose the immobilized waste following processing in these facilities. This document uses a two phased approach to the analysis to reflect the two-phased nature of the mission.
Date: January 9, 1998
Creator: Acree, C. D.
Object Type: Report
System: The UNT Digital Library
A Strategy to Conduct an Analysis of the Long-Term Performance of Low-Activity Waste Glass in a Shallow Subsurface Disposal System at Hanford (open access)

A Strategy to Conduct an Analysis of the Long-Term Performance of Low-Activity Waste Glass in a Shallow Subsurface Disposal System at Hanford

Privatized services are being procured to vitrify low-activity tank wastes for eventual disposalin a shallow subsurface facility at the Hanford Site. Over 500,000 metric tons of low-activitywaste glass will be generated, which is among the largest volumes of waste within the U.S.Department of Energy (DOE) complex and is one of the largest inventories of long-livedradionuclides planned for disposal in a low-level waste facility. Before immobilized waste canbe disposed, DOE must approve a"performance assessment," which is a document that describesthe impacts of the disposal facility on public health and environmental resources. Because therelease rate of radionuclides from the glass waste form is a key factor determining these impacts,a sound scientific basis for determining their long-term release rates must be developed if thisdisposal action is to be accepted by regulatory agencies, stakeholders, and the public. In part, thescientific basis is determined from a sound testing strategy.The foundation of the proposed testing strategy is a well accepted mechanistic model that isbeing used to calculate the glass corrosion behavior over the geologic time scales required forperformance assessment. This model requires that six parameters be determined, and the testingprogram is defined by an appropriate set of laboratory experiments to determine theseparameters, and is combined with …
Date: October 9, 1998
Creator: McGrail, B. Peter; Ebert, W. L.; Bacon, Diana H. & Strachan, Denis M.
Object Type: Report
System: The UNT Digital Library
Tank waste remediation system program plan (open access)

Tank waste remediation system program plan

This TWRS Program plan presents the planning requirements and schedules and management strategies and policies for accomplishing the TWRS Project mission. It defines the systems and practices used to establish consistency for business practices, engineering, physical configuration and facility documentation, and to maintain this consistency throughout the program life cycle, particularly as changes are made. Specifically, this plan defines the following: Mission needs and requirements (what must be done and when must it be done); Technical objectives/approach (how well must it be done); Organizational structure and philosophy (roles, responsibilities, and interfaces); and Operational methods (objectives and how work is to be conducted in both management and technical areas). The plan focuses on the TWRS Retrieval and Disposal Mission and supports the DOE mid-1998 Readiness to Proceed with Privatized Waste Treatment evaluation for establishing contracts with private contractors for the treatment (immobilization) of Hanford tank high-level radioactive waste.
Date: January 9, 1998
Creator: Powell, R. W.
Object Type: Report
System: The UNT Digital Library
Tank waste remediation system retrieval and disposal mission initial updated baseline summary (open access)

Tank waste remediation system retrieval and disposal mission initial updated baseline summary

This document provides a summary of the Tank Waste Remediation System (TWRS) Retrieval and Disposal Mission Initial Updated Baseline (scope, schedule, and cost), developed to demonstrate Readiness-to-Proceed (RTP) in support of the TWRS Phase 1B mission. This Updated Baseline is the proposed TWRS plan to execute and measure the mission work scope. This document and other supporting data demonstrate that the TWRS Project Hanford Management Contract (PHMC) team is prepared to fully support Phase 1B by executing the following scope, schedule, and cost baseline activities: Deliver the specified initial low-activity waste (LAW) and high-level waste (HLW) feed batches in a consistent, safe, and reliable manner to support private contractors` operations starting in June 2002; Deliver specified subsequent LAW and HLW feed batches during Phase 1B in a consistent, safe, and reliable manner; Provide for the interim storage of immobilized HLW (IHLW) products and the disposal of immobilized LAW (ILAW) products generated by the private contractors; Provide for disposal of byproduct wastes generated by the private contractors; and Provide the infrastructure to support construction and operations of the private contractors` facilities.
Date: January 9, 1998
Creator: Swita, W. R.
Object Type: Report
System: The UNT Digital Library
Helium Background in the D0 Detector Related to the Photomultiplier Tubes (open access)

Helium Background in the D0 Detector Related to the Photomultiplier Tubes

Helium is present in the earth's atmosphere at about 5 parts per million. (ref. Technology of liquid helium, NBS monograph 111). The D-Zero detector uses helium for the cryogenic cooling of its superconducting magnet and visible light photon counter (VLPC) electronics chips. In addition, the tevatron accelerator has superconducting magnets that use helium Due to the possibility of leaks or releases of helium from these helium lines and components, the background helium level in the collision hall may exceed the natural level of 5 ppm. This engineering note will quantify the probability and level of helium background in the D-Zero detector. The photomultiplier tubes used in the D-Zero detector are sensitive to an elevated helium atmosphere. This is due to the permeation rate of helium gas through the glass tube, into the vacuum space inside. It is very important for the helium atmosphere surrounding the photomultiplier tubes is known and controlled. If the level of helium in the vacuum tube reaches a level above 5 ppm, then the photomuliplier tube may no longer work as designed. The process is an irreversible one.
Date: April 9, 1998
Creator: Rucinski, R.
Object Type: Report
System: The UNT Digital Library
Improved single sector supersymmetry breaking (open access)

Improved single sector supersymmetry breaking

Building on recent work by N. Arkani-Hamed and the present authors, we construct realistic models that break supersymmetry dynamically and give rise to composite quarks and leptons, all in a single strongly-coupled sector. The most important improvement compared to earlier models is that the second-generation composite states correspond to dimension-2 ''meson'' operators in the ultraviolet. This leads to a higher scale for flavor physics, and gives a completely natural suppression of flavor-changing neutral currents. We also construct models in which the hierarchy of Yukawa couplings is explained by the dimensionality of composite states. These models provide an interesting and viable alternative to gravity- and gauge-mediated models. The generic signatures are unification of scalar masses with different quantum numbers at the compositeness scale, and lighter gaugino, Higgsino, and third-generation squark and slepton masses. We also analyze large classes of models that give rise to both compositeness and supersymmetry breaking, based on gauge theories with confining, fixed-point, or free-magnetic dynamics.
Date: December 9, 1998
Creator: Luty, Markus A. & Terning, John
Object Type: Article
System: The UNT Digital Library
Argonne National Laboratory Institutional Plan FY 1999 - FY 2004. (open access)

Argonne National Laboratory Institutional Plan FY 1999 - FY 2004.

The ''Institutional Plan'' is the culmination of Argonne's annual planning cycle. This document outlines the Laboratory's plans for the optimal development of its research programs and support operations, in the context of national research and development needs, the missions of the Department of Energy and Argonne National Laboratory, and expected resource constraints. The ''Institutional Plan'' is the product of internal planning and extensive discussions with DOE managers.
Date: December 9, 1998
Creator: Beggs, S. D.
Object Type: Report
System: The UNT Digital Library
Elements of Doping Engineering in Semiconductors (open access)

Elements of Doping Engineering in Semiconductors

Using defect thermodynamics, we discuss physical factors that affect doping limits in semiconductors. The dependencies of the defect formation enthalpy on the atomic chemical potentials and on the electron Fermi energy are demonstrated. These dependencies, in particular on the Fermi energy, lead to spontaneous formation of charge-compensating defects that can limit doping. Experimental data compiled for III-V, II-VI, and I-III-VI2 compounds support this view and further provide insight into the connections among different host materials. We argue that what matters is not the magnitude of the band gap that determines the dopability of a material, but rather, the relative position of the conduction-band minimum (in the case of n-doping) and the valence-band maximum (in the case of p-doping) with respect to vacuum.
Date: November 9, 1998
Creator: Zhang, S. B.; Wei, S. & Zunger, A.
Object Type: Article
System: The UNT Digital Library
Tank 241-SY-101 push mode core sampling and analysis plan (open access)

Tank 241-SY-101 push mode core sampling and analysis plan

This sampling and analysis plan (SAP) identifies characterization objectives pertaining to sample collection, laboratory analytical evaluation, and reporting requirements for push mode core samples from tank 241-SY-101 (SY-101). It is written in accordance with Data Quality Objective to Support Resolution of the Flammable Gas Safety Issue (Bauer 1998), Low Activity Waste Feed Data Quality Objectives (Wiemers and Miller 1997 and DOE 1998), Data Quality Objectives for TWRS Privatization Phase I: Confirm Tank T is an Appropriate Feed Source for Low-Activity Waste Feed Batch X (Certa 1998), and the Tank Safety Screening Data Quality Objective (Dukelow et al. 1995). The Tank Characterization Technical Sampling Basis document (Brown et al. 1998) indicates that these issues apply to tank SY-101 for this sampling event. Brown et al. also identifies high-level waste, regulatory, pretreatment and disposal issues as applicable issues for this tank. However, these issues will not be addressed via this sampling event.
Date: October 9, 1998
Creator: CONNER, J.M.
Object Type: Report
System: The UNT Digital Library
Return on investment (ROI) proposal preparation guide (open access)

Return on investment (ROI) proposal preparation guide

The ROI Proposal Preparation Guide is a tool to assist Hanford waste generators in preparing ROI proposal forms for submittal to Department of Energy, Richland Operations Office (DOE/RL) for funding. The guide describes the requirements for submitting an ROI proposal and provides examples of completed ROI forms. The intent is to assist waste generators in identifying projects that meet the criteria, provide information necessary to complete the ROI forms, and submit a proposal that is eligible to receive funding.
Date: October 9, 1998
Creator: VALERO, O.J.
Object Type: Report
System: The UNT Digital Library
Thermodynamics of lattice QCD with 2 quark flavours : chiral symmetry and topology. (open access)

Thermodynamics of lattice QCD with 2 quark flavours : chiral symmetry and topology.

We have studied the restoration of chiral symmetry in lattice QCD at the finite temperature transition from hadronic matter to a quark-gluon plasma. By measuring the screening masses of flavour singlet and non-singlet meson excitations, we have seen evidence that, although flavour chiral symmetry is restored at this transition, flavour singlet (U(1)) axial symmetry is not. We conclude that this indicates that instantons continue to play an important role in the quark-gluon plasma phase.
Date: June 9, 1998
Creator: Lagae, J.-F.
Object Type: Article
System: The UNT Digital Library
Emission estimates for air pollution transport models. (open access)

Emission estimates for air pollution transport models.

The results of studies of energy consumption and emission inventories in Asia are discussed. These data primarily reflect emissions from fuel combustion (both biofuels and fossil fuels) and were collected to determine emissions of acid-deposition precursors (SO{sub 2} and NO{sub x}) and greenhouse gases (CO{sub 2} CO, CH{sub 4}, and NMHC) appropriate to RAINS-Asia regions. Current work is focusing on black carbon (soot), volatile organic compounds, and ammonia.
Date: October 9, 1998
Creator: Streets, D. G.
Object Type: Article
System: The UNT Digital Library
MCO Monitoring issue closure package (open access)

MCO Monitoring issue closure package

Agreement on a focused, limited approach to MCO monitoring has been documented. While the value of monitoring has been understood by those interested in the SNF Project, there had been a diversity of opinion on details of approach and implementation. For this reason, MCO monitoring had been identified as a technical issue. A cooperative effort involving the contractor, RL, and the technical assistance group (TAG), resulted in the definition of an approach agreeable to all and of the remaining details to be resolved through conceptual engineering. MCO monitoring will consist of temperature, pressure, and gas composition monitoring of 4 to 6 MCOs for up to two years. High pressure detection capability for the duration of interim storage for every MCO will also be evaluated and implemented within the current project baseline, if possible. Otherwise a BCR will be prepared and submitted.
Date: November 9, 1998
Creator: SEXTON, R.A.
Object Type: Report
System: The UNT Digital Library
GaN: Defect and Device Issues (open access)

GaN: Defect and Device Issues

The role of extended and point defects, and key impurities such as C, O and H, on the electrical and optical properties of GaN is reviewed. Recent progress in the development of high reliability contacts, thermal processing, dry and wet etching techniques, implantation doping and isolation and gate insulator technology is detailed. Finally, the performance of GaN-based electronic and photonic devices such as field effect transistors, UV detectors, laser diodes and light-emitting diodes is covered, along with the influence of process-induced or grown-in defects and impurities on the device physics.
Date: November 9, 1998
Creator: Pearton, S. J.; Ren, F.; Shul, R. J. & Zolper, J. C.
Object Type: Article
System: The UNT Digital Library
ICF quarterly report January - March 1997 volume 7, number 3 (open access)

ICF quarterly report January - March 1997 volume 7, number 3

The National Ignition Facility Project The mission of the National Ignition Facility (NIF) is to produce ignition and modest energy gain in inertial confinement fusion (ICF) targets. Achieving these goals will maintain U.S. world leadership in ICF and will directly benefit the U.S. Department of Energy (DOE) missions in national security, science and technology, energy resources, and industrial competitiveness. Development and operation of the NIF are consistent with DOE goals for environmental quality, openness to the community, and nuclear nonproliferation and arms control. Although the primary mission of inertial fusion is for defense applications, inertial fusion research will provide critical information for the development of inertial fusion energy. The NIF, under construction at Lawrence Livermore National Laboratory (LLNL), is a cornerstone of the DOE's science-based Stockpile Stewardship Program for addressing high-energy-density physics issues in the absence of nuclear weapons testing. In pursuit of this mission, the DOE's Defense Programs has developed a state-of-the-art capability with the NIF to investigate high-energy-density physics in the laboratory with a microfusion capability for defense and energy applications. As a Strategic System Acquisition, the NIF Project has a separate and disciplined reporting chain to DOE as shown below.
Date: April 9, 1998
Creator: Murray, J
Object Type: Report
System: The UNT Digital Library
Studies of electrolyte penetration in carbon anodes by NMR techniques. (open access)

Studies of electrolyte penetration in carbon anodes by NMR techniques.

A toroid cavity nuclear magnetic resonance (NMR) detector capable of recording radial concentration profiles, diffusion constants, and displacements of charge carriers was employed to investigate the lithium ion distribution in an electrochemical cell containing a carbonaceous material synthesized from pyrene and pillared clays as inorganic templates. A carbon rod was used in a control experiment to assign the Li{sup +} spectrum and to calibrate the one dimensional radial images.
Date: December 9, 1998
Creator: Sandi, G.
Object Type: Article
System: The UNT Digital Library