1998 FFTF annual system assessment reports (open access)

1998 FFTF annual system assessment reports

The health of FFTF systems was assessed assuming a continued facility standby condition. The review was accomplished in accordance with the guidelines of FFTF-EI-083, Plant Evaluation Program. The attached document includes an executive summary of the significant conclusions and assessment reports for each system evaluated.
Date: March 19, 1998
Creator: Guttenberg, S.
Object Type: Report
System: The UNT Digital Library
Acceptable knowledge summary report for combustible/noncombustible, metallic, and HEPA filter waste resulting from {sup 238}Pu fabrication activities (open access)

Acceptable knowledge summary report for combustible/noncombustible, metallic, and HEPA filter waste resulting from {sup 238}Pu fabrication activities

All transuranic (TRU) waste must be sufficiently characterized and certified before it is shipped to the Waste Isolation Pilot Plant (WIPP). The US Environmental Protection Agency (EPA) allows use of acceptable knowledge (AK) for waste characterization. EPA uses the term AK in its guidance document and defines AK and provides guidelines on how acceptable knowledge should be obtained and documented. This AK package has been prepared in accordance with Acceptable Knowledge Documentation (TWCP-QP-1.1-021,R.2). This report covers acceptable knowledge information for five waste streams generated at TA-55 during operations to fabricate various heat sources using feedstock {sup 238}Pu supplied by the Savannah River Site (SRS). The {sup 238}Pu feedstock itself does not contain quantities of RCRA-regulated constituents above regulatory threshold limits, as known from process knowledge at SRS and as confirmed by chemical analysis. No RCRA-regulated chemicals were used during {sup 238}Pu fabrication activities at TA-55, and all {sup 238}Pu activities were physically separated from other plutonium processing activities. Most of the waste generated from the {sup 238}Pu fabrication activities is thus nonmixed waste, including waste streams TA-55-43, 45, and 47. The exceptions are waste streams TA-55-44, which contains discarded lead-lined rubber gloves used in the gloveboxes that contained the {sup …
Date: February 19, 1998
Creator: Rogers, P.S.Z. & Foxx, C.L.
Object Type: Report
System: The UNT Digital Library
Active and passive computed tomography mixed waste focus area final report (open access)

Active and passive computed tomography mixed waste focus area final report

The Mixed Waste Focus Area (MWFA) Characterization Development Strategy delineates an approach to resolve technology deficiencies associated with the characterization of mixed wastes. The intent of this strategy is to ensure the availability of technologies to support the Department of Energy� s (DOE) mixed waste low-level or transuranic (TRU) contaminated waste characterization management needs. To this end the MWFA has defined and coordinated characterization development programs to ensure that data and test results necessary to evaluate the utility of non-destructive assay technologies are available to meet site contact handled waste management schedules. Requirements used as technology development project benchmarks are based in the National TRU Program Quality Assurance Program Plan. These requirements include the ability to determine total bias and total measurement uncertainty. These parameters must be completely evaluated for waste types to be processed through a given nondestructive waste assay system constituting the foundation of activities undertaken in technology development projects. Once development and testing activities have been completed, Innovative Technology Summary Reports are generated to provide results and conclusions to support EM-30, -40, or -60 end user/customer technology selection. The Active and Passive Computed Tomography non-destructive assay system is one of the technologies selected for development by the …
Date: August 19, 1998
Creator: Roberson, G P
Object Type: Report
System: The UNT Digital Library
Agricultural Provisions in the FY1998 Emergency Supplemental Appropriations Act (P.L. 105-174) (open access)

Agricultural Provisions in the FY1998 Emergency Supplemental Appropriations Act (P.L. 105-174)

This report considers the agricultural funding allocated in the FY1998 supplemental appropriations bill.
Date: May 19, 1998
Creator: Chite, Ralph M.
Object Type: Report
System: The UNT Digital Library
Analyses of a Reinforced Concrete Containment with Liner Corrosion Damage (open access)

Analyses of a Reinforced Concrete Containment with Liner Corrosion Damage

Incidents of liner corrosion in nuclear power containment structures have been recorded. These incidents and concerns of other possible liner corrosion in containment have prompted an interest in determining g the capacity of a degraded containment. Finite element analyses of a typical pressurized water reactor (PWR) reinforced concrete containment with liner corrosion were conducted using the A13AQUS finite element code with the ANACAP-U nonlinear concrete constitutive model. The effect of liner corrosion on containment capacity was investigated. A loss of coolant accident was simulated by applying pressure and temperature changes to the structure without corrosion to determine baseline failure limits, followed by multiple analyses of the containment with corrosion at different locations and varying degrees of liner degradation. The corrosion locations were chosen at the base of the containment wall, near the equipment hatch, and at the midheight of the containment wall. Using a strain-based failure criterion the different scenarios were evaluated to prioritize their effect on containment capacity
Date: November 19, 1998
Creator: Cherry, J. L. & Smith, J. A.
Object Type: Article
System: The UNT Digital Library
Analysis of hydrogen vehicles with cryogenic high pressure storage (open access)

Analysis of hydrogen vehicles with cryogenic high pressure storage

Insulated pressure vessels are cryogenic-capable pressure vessels that can be fueled with liquid hydrogen (LIQ) or ambient-temperature compressed hydrogen (CH2). Insulated pressure vessels offer the advantages of liquid hydrogen tanks (low weight and volume), with reduced disadvantages (lower energy requirement for hydrogen liquefaction and reduced evaporative losses). This paper shows an evaluation of the applicability of the insulated pressure vessels for light-duty vehicles. The paper shows an evaluation of evaporative losses and insulation requirements and a description of the current experimental plans for testing insulated pressure vessels. The results show significant advantages to the use of insulated pressure vessels for light-duty vehicles.
Date: June 19, 1998
Creator: Aceves, S. M. & Berry, G. D.
Object Type: Article
System: The UNT Digital Library
Application of 2-D Simulations to Z-Pinch Experiment Design and Analysis (open access)

Application of 2-D Simulations to Z-Pinch Experiment Design and Analysis

The successful 2-D simulations of z-pinch experiments (reproducing such features as the measured experimental current drive, radiation pulse shape, peak power and total radiated energy) can lead to a better understanding of the underlying physics in z-pinch implosions and to the opportunity to use such simulations in the analysis of experimental data and in the design of new experiments. Such use has been made with LANL simulations of experiments on the Sandia Saturn and Z accelerators. Applications have included ''vacuum'' and ''dynamic'' hohlraum experiments; variations in mass, radius and length; and ''nested'' array configurations. Notable examples include the explanation of the power/length results in reduced length pinches and the prediction of the current best power and pulsewidth nested array experiment. Examples of circumstances where the simulation results do not match the experiments will be given along with a discussion of opportunities for improved simulation results.
Date: October 19, 1998
Creator: Peterson, D. L.; Bowers, R. L.; Matuska, W.; Chandler, G. A.; Deeney, C.; Derzon, M. S. et al.
Object Type: Article
System: The UNT Digital Library
Appropriations for FY1999: Labor, Health and Human Services, and Education (open access)

Appropriations for FY1999: Labor, Health and Human Services, and Education

This report is a guide to one of the 13 regular appropriations bills that Congress considers each year.It is designed to supplement the information provided by the House and Senate Appropriations Subcommittees on Labor, Health, and Human Services, and Education. It summarizes the current legislative status of the bill, its scope, its major issues, funding levels, and related legislative activity.
Date: November 19, 1998
Creator: Irwin, Paul M.
Object Type: Report
System: The UNT Digital Library
Appropriations for FY1999: Labor, Health and Human Services, and Education (open access)

Appropriations for FY1999: Labor, Health and Human Services, and Education

Appropriations are one part of a complex federal budget process that includes budget resolutions, appropriations (regular, supplemental, and continuing) bills, rescissions, and budget reconciliation bills. This report is a guide to one of the 13 regular appropriations bills that Congress passes each year. It is designed to supplement the information provided by the House and Senate Appropriations Subcommittees on Labor, Health and Human Services, and Education.
Date: November 19, 1998
Creator: Irwin, Paul M.
Object Type: Report
System: The UNT Digital Library
An atomistic study of the effects of stress and hydrogen on a dislocation lock in nickel (open access)

An atomistic study of the effects of stress and hydrogen on a dislocation lock in nickel

Even though austenitic alloys are commonly used in a hydrogen environment, hydrogen-induced fracture of these alloys has been reported. Most recently it has been shown that the failure of these alloys in hydrogen is initiated by void formation at slip band intersections. It is the object of this work to investigate the atomistic mechanisms that occur at these slip band intersections in the presence of hydrogen. Specifically it has been suggested that dislocation-dislocation interactions may play a large role in the initiation of voids or cracks. Hirth has summarized the various forms of dislocation interactions, traditionally called Lomer-Cottrell Locks (LCLs), that can occur. Baskes et al. have investigated the effects of stress on a LCL using an Embedded Atom Method (EAM) model for nickel developed previously by Angelo et al. The EAM is a well-established semi-empirical method of atomistic calculation that has been successfully used for over a decade to calculate the energetics and structure of defects in transition metals. The work by Angelo et al. established that the trapping of hydrogen to single dislocations had a maximum energy of ca. 0.1 eV while the trapping to a LCL was significantly greater, {approximately}0.33 eV, thus the authors expect that a …
Date: March 19, 1998
Creator: Hoagland, R. G. & Baskes, M. I.
Object Type: Article
System: The UNT Digital Library
Banking Acquisition and Merger Procedures (open access)

Banking Acquisition and Merger Procedures

This report discusses in general terms the basic process and time line for banking industry acquisitions and mergers and briefly discusses the May 4, 1998 application by Travelers Group to merge with Citicorp.
Date: May 19, 1998
Creator: Murphy, M. Maureen
Object Type: Report
System: The UNT Digital Library
Banking Acquisition and Merger Procedures (open access)

Banking Acquisition and Merger Procedures

This report discusses in general terms the basic process and time line for banking industry acquisitions and mergers and briefly discusses the May 4, 1998 application by Travelers Group to merge with Citicorp. Among the issues discussed are: potential impact on consumers; whether the new entities would be too big to fail; and, whether competitive equity calls for financial modernization legislation with functional regulation of the securities, banking, and insurance sectors of companies offering customers a full range of financial products and services. Legislative developments on financial modernization issues in the 105th Congress are reported in CRS Issue Brief 97034, which is available on the Legislative Information System.
Date: May 19, 1998
Creator: Murphy, M. Maureen
Object Type: Report
System: The UNT Digital Library
Basis for Interim Operation for the K-Reactor in Cold Standby (open access)

Basis for Interim Operation for the K-Reactor in Cold Standby

The Basis for Interim Operation (BIO) document for K Reactor in Cold Standby and the L- and P-Reactor Disassembly Basins was prepared in accordance with the draft DOE standard for BIO preparation (dated October 26, 1993).
Date: October 19, 1998
Creator: Shedrow, B.
Object Type: Report
System: The UNT Digital Library
CALGRID Photochemical Modeling of Air Quality Impacts of Alternative Transportation Fuel Use in Los Angeles (open access)

CALGRID Photochemical Modeling of Air Quality Impacts of Alternative Transportation Fuel Use in Los Angeles

The National Renewable Energy Laboratory has been conducting a comprehensive program to quantify and assess the air quality impacts of the emissions of ozone precursors, air toxins, and greenhouse gases from alternative fuel vehicles. This program includes both an emissions estimation component and a photochemical modeling component to study three fuels: reformulated gasoline, compressed natural gas, and 85% methanol (M85). This report describes the use of the CALGRID model in the Los Angeles modeling domain using the State-Wide Air Pollution Research Center (SAPRC90) chemical mechanism and an early version of the SAPRC93 mechanism. A variety of conclusions can be drawn from the results of this study, including results from chemical mechanism testing; development of meteorological inputs; model evaluation and comparison; and the analyses of the impacts of the emissions scenarios. The report summarizes the study's major findings in these areas.
Date: November 19, 1998
Creator: Moore, G. E.; Londergan, R. J. & Fernau, M. E.
Object Type: Report
System: The UNT Digital Library
Calibration of an Advanced Photon Source linac beam position monitor used for positron position measurement of a beam containing both positrons and electrons. (open access)

Calibration of an Advanced Photon Source linac beam position monitor used for positron position measurement of a beam containing both positrons and electrons.

The Advanced Photon Source (APS) linac beam position monitors can be used to monitor the position of a positron beam also containing electrons. To accomplish this task, both the signal at the bunching frequency of 2856 MHz and the signal at 2 x 2856 MHz are acquired and processed for each stripline. The positron beam position is obtained by forming a linear combination of both 2856- and 5712-MHz signals for each stripline and then performing the standard difference over sum computation. The required linear combination of the 2856- and 5712-MHz signals depends on the electrical calibration of each stripline/cable combination. In this paper, the calibration constants for both 2856-MHz and 5712-MHz signals for each stripline are determined using a pure beam of electrons. The calibration constants are obtained by measuring the 2856- and 5712-MHz stripline signals at various electron beam currents and positions. Finally, the calibration constants measured using electrons are used to determine positron beam position for the mixed beam case.
Date: May 19, 1998
Creator: Sereno, N. S.
Object Type: Article
System: The UNT Digital Library
Characterization engineering status report January 1998--March 1998 (open access)

Characterization engineering status report January 1998--March 1998

Characterization Engineering (CE) continues to make progress in support of the project goal of characterizing the Hanford high-level waste tanks. Four core sampling systems were operational during this reporting period -- push mode core sample system No. 1 and rotary mode core sample systems No. 2, No. 3, and No. 4. The availability average for all core sampling systems increased to 46 percent from the last quarter average of 43 percent. Six tanks were core sampled during the reporting period and 72 samples were retrieved. Average sampler recovery for system No. 1 was 76 percent, below the performance goal of 80 percent. The systems No. 2, No. 3, and No. 4 goal of 60 percent was satisfied by overall recovery of 77 percent. This reporting period included the completion of modifications to Exhauster C for rotary mode core sampling (RMCS) and successful Acceptance and Operational testing. The portable exhauster was upgraded to Major Stack. All of the permit issues were resolved and the exhauster will be deployed when the Readiness Review is complete. During this reporting period significant progress was made in other areas as well. Grab Sampling retrieved samples of waste from fifteen tanks. Vapor Sampling was utilized in …
Date: May 19, 1998
Creator: Kostelnik, A.J.
Object Type: Report
System: The UNT Digital Library
Characterization of the 309 building fuel transfer pit and storage basin (open access)

Characterization of the 309 building fuel transfer pit and storage basin

This document identifies radiological, chemical and physical conditions inside the Fuel Transfer Pit and Fuel Storage Basins. These spaces are located inside the Plutonium Recycle Test Reactor structure (309 Building.) The fuel handling and storage feature of the PRTR were primarily located in these spaces. The conditions were assessed as part of overall 309 Building transition.
Date: March 19, 1998
Creator: Hale, N.S.
Object Type: Report
System: The UNT Digital Library
China: Pending Legislation in the 105th Congress (open access)

China: Pending Legislation in the 105th Congress

The 105 Congress has been active on issues involving China. This report, which will be updated as developments occur, tracks pending human rights legislation, including bills concerning: prison conditions and prison labor exports; coercive abortion practices; China’s policies toward religion; and more general human rights issues.
Date: June 19, 1998
Creator: Dumbaugh, Kerry
Object Type: Report
System: The UNT Digital Library
China: Pending Legislation in the 105th Congress (open access)

China: Pending Legislation in the 105th Congress

This report tracks pending human rights legislation, including bills concerning: prison conditions and prison labor exports (H.R. 2195, H.R. 2358); coercive abortion practices (H.R. 2570); China’s policies toward religion (H.R. 967, H.R. 2431); and more general human rights issues (H.R. 2095). Other bills concern Taiwan — in particular, Taiwan’s entry into the World Trade Organization (H.Res. 190) and the U.S. role in helping Taiwan with a theater missile defense system (H.R. 2386). Also, legislation is pending on China’s missile proliferation activities (H.Res. 188), Radio Free Asia broadcasting to China (H.R. 2232), China’s participation in multilateral institutions (H.R. 1712, H.R. 2605), and the activities of China’s military and intelligence services (H.R. 2647, H.R. 2190).
Date: June 19, 1998
Creator: Dumbaugh, Kerry
Object Type: Report
System: The UNT Digital Library
The Climate and Hydrologic History of Southern Nevada During Late Quaternary (open access)

The Climate and Hydrologic History of Southern Nevada During Late Quaternary

This report describes The Climate and Hydrologic History of Southern Nevada During Late Quaternary.
Date: August 19, 1998
Creator: Forester, R.; Bradbury, J.; Carter, C.; Lundstrom, S.; Mahan, S. & Marshall, B.
Object Type: Report
System: The UNT Digital Library
Code Development for Control Design Applications: Phase I: Structural Modeling (open access)

Code Development for Control Design Applications: Phase I: Structural Modeling

The design of integrated controls for a complex system like a wind turbine relies on a system model in an explicit format, e.g., state-space format. Current wind turbine codes focus on turbine simulation and not on system characterization, which is desired for controls design as well as applications like operating turbine model analysis, optimal design, and aeroelastic stability analysis. This paper reviews structural modeling that comprises three major steps: formation of component equations, assembly into system equations, and linearization.
Date: November 19, 1998
Creator: Bir, G. S. & Robinson, M.
Object Type: Article
System: The UNT Digital Library
Combining Noise Factors and Process Parameters in a Response Surface (open access)

Combining Noise Factors and Process Parameters in a Response Surface

This presentation covers the strategy and analysis of an experiment to characterize a gas tungsten arc welding process. The experiment combined four uncontrolled noise factors and four controlled process parameters. A nontraditional response surface design was employed. Multiple responses were modeled. Optimal settings for the process parameters to successfully weld the widest range of the pertinent product features were identified. Thus, the process was made ''robust'' against ''noise'' factors. Comparisons are made between the experimental and analytical approach taken versus the Taguchi style of experimentation and analysis. This comparison is mainly done with respect to the information gained, such as product design criteria, incoming material specifications, and process adjustments for nonconforming material.
Date: March 19, 1998
Creator: Wyckoff, James
Object Type: Article
System: The UNT Digital Library
Conformational Diversity in (Octaethylporphinato) (trichloroacetato)iron(III) Derivatives (open access)

Conformational Diversity in (Octaethylporphinato) (trichloroacetato)iron(III) Derivatives

Treatment of [Fe(OEP)]20 with trichloroacetic acid results in ruffled formation of (octaethylporphinato trichloroacetato)iron(HI). Various crystalline solvates can be isolated, depending on the crystallization solvent. Initial crystallization with CHC13/hexanes resulted in the isolation of an unsolvated form. [Fe(OEP)(02C2C13 )]. This form contains distinct porphyrin core conformations at the same site: one is domed and the other is ruffled. Crystal data for [Fe(OEP)(02C2C13 )]: Q = 14.734(4) .4. b = 13.674(1) .\. c = 17..541 [,.5] .~. 3 = 90.67(1)0, V = 35-!5.8(14) .\3. monoclinic. space group R1/ n. Z = 4. Subsequent crystallization with CHC13/hexanes resulted in a new crystalline form, [Fe(OEP)(OzC2C13 )~.- CHC13; the porphyrin core is slightly ruffled. Crystal data for [Fe(OEP)(OoC2C13 )]. CHC13: a =12.323(1) .~, 6 = 13.062(3) .\. C = 14.327(2) .$, Q = 89.32(1)", .3 = 113.36(2)0. :~ = 105.26(1)'. V = `2031.3(6) .\3. triclinic. space group Pi. Z = 2. Crystallization with CH2C12/hexanes resulted in the isolation of yet another form, [Fe(OEP) (02 C2C13)]. H02C2C13. which contains two independent molecules in the unit cell: molecule is slightly saddled and molecule B is modestly ruffled. Crystal data for [Fe(OEP)(02ClC13 )]. H02C2C13: a = 13.148(3) .\, b = 13.45.5(3) A, c = Q3.761(5) -& ~ = …
Date: October 19, 1998
Creator: Cheng, B.; Ma, J.; Neal, T.J.; Scheidt, W.R.; Schulz, C.E. & Shelnutt, J.A.
Object Type: Article
System: The UNT Digital Library
Design of high density gamma-phase uranium alloys for LEU dispersion fuel applications. (open access)

Design of high density gamma-phase uranium alloys for LEU dispersion fuel applications.

Uranium alloys are candidates for the fuel phase in aluminum matrix dispersion fuels requiring high uranium loading. Certain uranium alloys have been shown to have good irradiation performance at intermediate burnup. Previous studies have shown that acceptable fission gas swelling behavior and fuel-aluminum interaction is possible only if the fuel alloy can be maintained in the high temperature body-centered-cubic {gamma}-phase during fabrication and irradiation, i.e., at temperatures at which {alpha}-U is the equilibrium phase. Transition metals in Groups V through VIII are known to allow metastable retention of the gamma phase below the equilibrium isotherm. These metals have varying degrees of effectiveness in stabilizing the gamma phase. Certain alloys are metastable for very long times at the relatively low fuel temperatures seen in research reactor operation. In this paper, the existing data on the gamma stability of binary and ternary uranium alloys is analyzed. The mechanism and kinetics of decomposition of the gamma phase are assessed with the help of metal alloy theory. Alloys with the highest possible uranium content, good gamma-phase stability, and good neutronic performance are identified for further metallurgical studies and irradiation tests. Results from theory will be compared with experimentally generated data.
Date: October 19, 1998
Creator: Hofman, G. L.
Object Type: Article
System: The UNT Digital Library