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Comments on muon trapping. [HALO computer code]
Muons that result from the collisions of protons in the ISABELLE beams with other nucleons introduce important background or signal for experiments. Their ability to pass through the conductors and steel of ISABELLE magnets results in complicated trajectories. Some oscillate about quasistable orbits and are called ''trapped.'' A number of typical trajectories were plotted, and flux estimates were made with a Monte Carlo program, HALO. Trapping tends to reduce shielding requirements somewhat, but the effect does not appear to be a very large one from these initial investigations. More aspects need to be studied, and HALO appears to be a useful tool for doing so.
Date:
June 16, 1977
Creator:
Stevens, A. J. & Thorndike, A. M.
Object Type:
Report
System:
The UNT Digital Library
Recommended new criteria for the selection of nuclear waste repository sites in Columbia River basalt and US Gulf Coast domed salt
Screening criteria and specifications are recommended to aid in the evaluation of sites proposed for nuclear waste disposal in basalt and domed salt. The recommended new criteria proposed in this report are intended to supplement existing repository-related criteria for nuclear waste disposal. The existing criteria are contained in 10 CFR 60 sections which define siting criteria of the Nuclear Regulatory Commission (NRC), and ONWI 33(2) which defines siting criteria of the Office of Nuclear Waste Isolation (ONWI) for the Department of Energy. The specifications are conditions or parameter values that the authors recommend be applied in site acceptance evaluations. The siting concerns covered in this report include repository depth, host rock extent, seismic setting, structural and tectonic conditions, groundwater and rock geochemistry, volcanism, surface and subsurface hydrology, and socioeconomic issues, such as natural resources, land use, and population distribution.
Date:
June 16, 1980
Creator:
Steinborn, T.L.; Wagoner, J.L.; Qualheim, B.; Fitts, C.R.; Stetkar, R.E. & Turnbull, R.W.
Object Type:
Report
System:
The UNT Digital Library
Experimental and Analytical Reactivity Studies of Clean Critical Stainless Steel Cores
ABS>The results are presented of critical water height measurements made on close-packed lattices of Spert III, highly enriched, plate-type, stainless- steel-clad fuel elements. Experiments were conducted with cores containing no control rods and with cores containing a single, fully-inserted control rod. The "clean critical" data obtained in these experiments were used to test the validity of various aspects of a four-group, diffusion theory analysis of the full scale Spert III reactor. The results of the analyses of the rod-free and single-rodded critical lattices show that for such stainless steel cores k/sub eff/ can be calculated to within 1% DELTA k and that the Spert III control rod worth is calculable to a few tenths % DELTA k. (auth)
Date:
June 16, 1961
Creator:
Spano, A. H.
Object Type:
Report
System:
The UNT Digital Library
Development of molten carbonate fuel cell power plant. Quarterly progress report, February 1, 1982-April 30, 1982
Work proceeded this quarter mainly under three program tasks. Under Task 1.0, work was started on preparing a description of the reference Steam Injection System. It is planned to lay out the plant in power unit trains rated at a nominal 100 MW(e). Under Task 2.0, work continued on anode, cathode, current collector, and electrolyte tile develoment and stack design and analysis. Corrosion test results of various current collector materials after 3500 hours exposure are reported. Sintering data at 6000 hours were obtained on twelve different material samples tested to evaluate the effects of chromium and ceramic addition to state-of-the-art and in-house fabricated electrodes. The 6000 hour data showed no change in porosity or pore distribution from the 5000 hour data. The electroless-plated ceramic plaques demonstrated good stability and porosities. Two cells containing dual porosity anodes using all metal-plated-ceramic material, were tested. Although testing was terminated due to cracked tiles, the cell results are encouraging for the experimental anodes. Under Task 4.0, work continued on installation and debugging of the atmospheric bench scale single cell test facility, and operation of a cell started on April 20, 1982. Progress is detailed. (WHK)
Date:
June 16, 1982
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Comparison of measured and calculated uranium isotopic concentrations in cascade streams at the Paducah Gaseous Diffusion Plant
A test has been performed at the Paducah Gaseous Diffusion Plant (PGDP) in connection with studies for the US Arms Control and Disarmament Agency on the possibility of utilizing measurements of the concentrations of the minor uranium isotopes in /sup 235/U enrichment cascade external streams as a safeguards technique (MIST). This is the fourth plant test that has been performed in connection with the MIST studies, the first three having been done at the Oak Ridge Gaseous Diffusion Plant (ORGDP). The main objectives of the test were to measure the isotopic composition and flow rates of the plant external streams over a period of time; to design an appropriate plant model in the manner an IAEA safeguards team might do it and calculate the isotopic compositions of the plant streams; and to compare the calculated isotopic values with the measured ones. The calculated /sup 235/U to /sup 234/U concentration ratios in the product and tails streams did not match the average measured values in the high-power period as well as they did for the low-power period, when the same isotopic composition for natural U was assumed at both power levels - the actual composition of the natural U fed to …
Date:
June 16, 1982
Creator:
Blumkin, S.
Object Type:
Report
System:
The UNT Digital Library
Brief description of research papers accepted for publication during 1979. Annual report
Brief descriptions of research papers in radiobiology, biochemistry, metabolism, and biophysics published during 1979 are presented. The research was conducted by investigators in the Dept. of Radiation Biology and Biophysics. (ACR)
Date:
June 16, 1980
Creator:
Nash, D.B
Object Type:
Report
System:
The UNT Digital Library
[Letters from Donald Thompson and Cindy Stratton to the BRAC Comission - June 2005]
Letters from two California citizens to the BRAC Commission in response to the recommendation to close Naval Base Ventura County.
Date:
June 16, 2005
Creator:
Thompson, Donald J. & Stratton, Cindy
Object Type:
Letter
System:
The UNT Digital Library
Peacekeeping/Stabilization and Conflict Transitions: Background and Congressional Action on the Civilian Response/Reserve Corps and other Civilian Stabilization and Reconstruction Capabilities
This report provides background information relating to the Office of the Coordinator for Reconstruction and Stabilization (S/CRS) in the Office of the Secretary of State. This office was created in mid-2004 as part of the Bush Administration's efforts to develop adequate civilian organizational structures, procedures, and personnel to respond effectively to post-conflict, "stabilization and reconstruction" situations, most especially in Afghanistan and Iran. This report also discusses proposals and tracks related legislative action.
Date:
June 16, 2009
Creator:
Serafino, Nina M.
Object Type:
Report
System:
The UNT Digital Library
[Letter from Sheldon I. Cohen to the BRAC - June 16, 2005]
Letter from Sheldon Cohen to the Defense Base Closure and Realignment Commission (BRAC). He urged the individual commissioners to cancel the recommendation to relocate the hearing offices of the Defense Office of Hearings and Appeals to Fort Meade, Maryland.
Date:
June 16, 2005
Creator:
Cohen, Sheldon I.
Object Type:
Letter
System:
The UNT Digital Library
Federal Reserve Banks: Areas for Improvement in Information Security Controls
Correspondence issued by the Government Accountability Office with an abstract that begins "In connection with fulfilling our requirement to audit the financial statements of the U.S. government, we audited and reported on the Schedules of Federal Debt Managed by the Bureau of the Public Debt (BPD) for the fiscal years ended September 30, 2007 and 2006. As part of these audits, we performed a review of the general and application information security controls over key financial systems maintained and operated by the Federal Reserve Banks (FRBs) on behalf of the Department of the Treasury's BPD relevant to the Schedule of Federal Debt. In our audit report on the Schedules of Federal Debt for the fiscal years ended September 30, 2007 and 2006, we concluded that BPD maintained, in all material respects, effective internal control relevant to the Schedule of Federal Debt related to financial reporting and compliance with applicable laws and regulations as of September 30, 2007, that provided reasonable assurance that misstatements, losses, or noncompliance material in relation to the Schedule of Federal Debt would be prevented or detected on a timely basis. However, we found matters involving information security controls that we do not consider to be significant …
Date:
June 16, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
U.S. Postal Service: Mail Processing Network Initiatives Progressing, and Guidance for Consolidating Area Mail Processing Operations Being Followed
A letter report issued by the Government Accountability Office with an abstract that begins "Deteriorating financial conditions and declining mail volume have reinforced the need for the U.S. Postal Service (USPS) to increase operational efficiency and reduce expenses in its mail processing network. This network consists of interdependent functions in nearly 600 facilities. USPS developed several initiatives to reduce costs and increase efficiency; however, moving forward on some initiatives has been challenging because of the complexities involved in consolidating operations. In response to a conference report directive, GAO assessed (1) the overall status and results of USPS's efforts to realign its mail processing network and (2) the extent to which USPS has consistently followed its guidance and applied these criteria in reviewing Area Mail Processing (AMP) proposals for consolidation since the beginning of fiscal year 2009. To conduct this assessment, GAO reviewed USPS's Network Plan, area mail processing consolidation guidance and proposals as well as other documents; compared USPS's actions related to consolidation of area mail processing facilities with its guidance, and interviewed officials from USPS, the USPS Office of Inspector General, and employee organizations. GAO provided USPS with a draft of this report for comment. In response, USPS provided …
Date:
June 16, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
DOD Weapon Systems: Missed Trade-off Opportunities During Requirements Reviews
A letter report issued by the Government Accountability Office with an abstract that begins "The Weapon Systems Acquisition Reform Act of 2009 (WSARA) directed the Joint Requirements Oversight Council (JROC) to ensure trade-offs among cost, schedule, and performance objectives are considered as part of its requirements review process. WSARA also directed GAO to assess the implementation of these requirements. This report addresses (1) the extent to which the JROC has considered trade-offs within programs, (2) the quality of resource estimates presented to the JROC, and (3) the extent to which the JROC is prioritizing requirements and capability gaps. To do so, GAO analyzed requirement documents reviewed by the JROC in fiscal year 2010, which identified capability gaps or performance requirements for new major defense acquisition programs. GAO also assessed resource estimates presented to the JROC against best practices criteria in the GAO Cost Estimating and Assessment Guide."
Date:
June 16, 2011
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
International Aviation: Federal Efforts Help Address Safety Challenges in Africa, but Could Benefit from Reassessment and Better Coordination
A letter report issued by the Government Accountability Office with an abstract that begins "The African continent is important to U.S. economic, strategic, and foreign policy interests, and efforts have been made to improve commerce and connectivity to benefit the two regions. However, the continent has the highest aviation accident rate in the world, which has hindered progress. Recognizing the importance of improving aviation safety in Africa, the United States and the international aviation community have worked to improve aviation safety in Africa. This congressionally requested report discusses (1) challenges in improving aviation safety in Africa, (2) key U.S. efforts to improve aviation safety in Africa and the extent to which they address the identified challenges, and (3) international efforts to improve aviation safety in Africa. To address these issues, GAO synthesized literature and aviation safety data, interviewed federal officials, and visited four African countries."
Date:
June 16, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Responses to Posthearing Questions Related to GAO's Testimony on the U.S. Government's Consolidated Financial Statements for Fiscal Year 2002
Correspondence issued by the General Accounting Office with an abstract that begins "On April 8, 2003, GAO testified before the House Committee on Government Reform, Subcommittee on Government Efficiency and Financial Management at a hearing on our report on the U.S. government's consolidated financial statements for fiscal year 2002. This letter responds to questions related to our testimony from the Subcommittee's Chairman and the Ranking Minority Member and to subsequent questions from the Vice Chairman that the Chairman asked us to answer for the record."
Date:
June 16, 2003
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
IRS' 2000 Tax Filing Season: IRS Measures Show Tax Processing Systems Performed Slightly Better Than in 1999
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the performance of the information systems that the Internal Revenue Service (IRS) uses to process tax returns for individual taxpayers, focusing on: (1) IRS' tax processing systems performance in the 2000 filing season as reported by IRS compared to the 1999 filing season; and (2) whether IRS had taken actions to address problems affecting individual taxpayers."
Date:
June 16, 2000
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Defense Acquisitions: Issues to be Considered for Army's Modernization of Combat Systems
Testimony issued by the Government Accountability Office with an abstract that begins "Future Combat System (FCS) has been at the center of the Army's efforts to become a lighter, more agile, and more capable combat force by replacing existing combat systems with a family of manned and unmanned vehicles and systems, linked by an advanced information network. To meet the challenges of FCS's scope and schedule, the Army contracted with Boeing to be lead systems integrator (LSI), to help define, develop, and integrate FCS systems. Earlier this year, the Secretary of Defense proposed restructuring FCS to lower risk and address more near-term needs, shortly before FCS was to undergo a congressionally-mandated review to determine its future. The Department of Defense (DOD) and the Army have already begun to make programmatic and budgetary adjustments to FCS. This statement reviews aspects of FCS that should be considered for inclusion in future efforts, aspects that were problematic and need re-examination, and considerations for shaping future Army ground force modernization. The testimony is drawn from GAO's body of work on FCS management and acquisition strategy, including knowledge gaps, cost, affordability, oversight, and the Army/LSI relationship. GAO has made numerous recommendations aimed at managing FCS …
Date:
June 16, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
United Nations: Observations on the Oil for Food Program and Iraq's Food Security
Testimony issued by the General Accounting Office with an abstract that begins "The Oil for Food program was established by the United Nations and Iraq in 1996 to address concerns about the humanitarian situation after international sanctions were imposed in 1990. The program allowed the Iraqi government to use the proceeds of its oil sales to pay for food, medicine, and infrastructure maintenance. The program appears to have helped the Iraqi people. From 1996 through 2001, the average daily food intake increased from 1,300 to 2,300 calories. From 1997-2002, Iraq sold more than $67 billion of oil through the program and issued $38 billion in letters of credit to purchase commodities. However, over the years numerous allegations have surfaced concerning potential fraud and program mismanagement. GAO (1) reports on its estimates of the illegal revenue acquired by the former Iraqi regime in violation of U.N. sanctions, (2) provides observations on program administration; and (3) describes the current and future challenges in achieving food security."
Date:
June 16, 2004
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Credit and Debit Cards: Federal Agencies Benefit from Card Acceptance, but Have Limited Ability to Control Interchange Fee Costs
Testimony issued by the Government Accountability Office with an abstract that begins "Federal entities--agencies, corporations, and others--are growing users of credit and debit cards, as both "merchants" (receiving payments) and purchasers. Federal entities, like other merchants that accept cards, incur fees--called merchant discount fees--to process card transactions. For Visa and MasterCard transactions, a large portion of these fees-- referred to as interchange fees--goes to the card-issuing banks. This statement addresses (1) the amounts of revenue that federal entities have collected using credit and debit cards and the costs of such acceptance, (2) these entities' efforts to reduce their interchange fee costs, including negotiations, and (3) the extent to which card network rules affect these entities and other card accepters' ability to reduce interchange fee costs. The information for this statement was drawn from Credit and Debit Cards: Federal Entities Are Taking Actions to Limit Their Interchange Fees, but Additional Revenue Collection Cost Savings May Exist (GAO-08-558) and Credit Cards: Rising Interchange Fees Have Increased Costs for Merchants, but Options for Reducing Fees Pose Challenges (GAO-10-45). GAO analyzed data on accepting and using cards from the Department of the Treasury (Treasury), Amtrak, the Postal Service, and General Services Administration (GSA); and …
Date:
June 16, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Internet Infrastructure: DHS Faces Challenges in Developing a Joint Public/Private Recovery Plan
A letter report issued by the Government Accountability Office with an abstract that begins "Since the early 1990s, growth in the use of the Internet has revolutionized the way that our nation communicates and conducts business. While the Internet was originally developed by the Department of Defense, the vast majority of its infrastructure is currently owned and operated by the private sector. Federal policy recognizes the need to prepare for debilitating Internet disruptions and tasks the Department of Homeland Security (DHS) with developing an integrated public/private plan for Internet recovery. GAO was asked to (1) identify examples of major disruptions to the Internet, (2) identify the primary laws and regulations governing recovery of the Internet in the event of a major disruption, (3) evaluate DHS plans for facilitating recovery from Internet disruptions, and (4) assess challenges to such efforts."
Date:
June 16, 2006
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Federal Bankruptcy Judges: Measuring Judges' Case-Related Workload
Testimony issued by the Government Accountability Office with an abstract that begins "The Judicial Conference of the United States, the federal judiciary's principal policymaking body, uses 1,500 annual weighted case filings per authorized judgeship (judgeship position) in a bankruptcy court as an indicator of the need for additional bankruptcy judgeships for that court. Total annual weighted case filings for any specific bankruptcy court is the sum of the weights associated with each of the cases filed in the court in a year. Total annual weighted case filings per judgeship represent the estimated average amount of judge time that would be required to complete the cases filed in a specific bankruptcy court in a year. In May 2003 GAO testified on whether weighted case filings were a reasonably accurate measure of the case-related workload of bankruptcy judges. The accuracy of weighted case filings rests in turn on the soundness of the methodology used to develop them. GAO's work focused on whether the methodologies used to develop the current case weights and to revise and update those weights were likely to result in reasonably accurate measures of bankruptcy judges' case-related workload. This statement is based on GAO's May 2003 testimony on weighted …
Date:
June 16, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
World Bank Group: Important Steps Taken on Internal Control but Additional Assessments Should Be Made
A letter report issued by the General Accounting Office with an abstract that begins "The Congress passed Public Law 106-429 because it was concerned about the sufficiency of external audits of the financial operations of the World Bank Group, a set of multilateral development banks. This law provides that GAO report on the sufficiency of such audits of each Bank Group entity. GAO addressed (1) the extent that the external auditor was providing assurance on internal control over financial reporting, operations, and compliance with key provisions of bank charters and policies in conjunction with financial statement audits and (2) the role the Bank Group's audit committee plays in providing oversight of external financial statement audits and internal control."
Date:
June 16, 2003
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
2010 Census: Census Bureau Should Take Action to Improve the Credibility and Accuracy of Its Cost Estimate for the Decennial Census
A letter report issued by the Government Accountability Office with an abstract that begins "The 2010 Census will be the most expensive census in our nation's history, even after adjusting for inflation. The Census Bureau (Bureau) estimates that the life cycle cost of the 2010 Census will be from $13.7 billion to $14.5 billion. GAO was asked to (1) assess the extent to which the Bureau's 2010 Census life cycle cost estimate adheres to characteristics defined for high-quality cost estimation, (2) report on the relationship between the estimate and the Bureau's budget, and (3) assess whether the Bureau's existing policies and resources are sufficient to conduct cost estimation. To assess the reliability of the Bureau's cost estimate, GAO analyzed the Bureau's methods and approaches to determine if the estimate is well-documented, comprehensive, accurate, and credible."
Date:
June 16, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
NASA: Commercial Partners Are Making Progress, but Face Aggressive Schedules to Demonstrate Critical Space Station Cargo Transport Capabilities
A letter report issued by the Government Accountability Office with an abstract that begins "After the planned retirement of the space shuttle in 2010, the National Aeronautics and Space Administration (NASA) will face a cargo resupply shortfall for the International Space Station of approximately 40 metric tons between 2010 and 2015. NASA budgeted $500 million in seed money to commercial partners to develop new cargo transport capabilities through its Commercial Orbital Transportation Services (COTS) project. NASA used its other transaction authority to award agreements to commercial partners. These agreements are not federal government contracts, and are therefore generally not subject to federal laws and regulations that apply to federal government contracts. GAO previously reported concerns about whether COTS vehicles would be developed in time to meet the shortfall. Subsequently, GAO was directed by the explanatory statement accompanying the Consolidated Appropriations Act, 2008, to examine NASA's management of the COTS project and its expenditures. In addition, GAO was asked to examine (1) NASA's reliance on commercial partners to meet the space station's cargo resupply needs; and (2) progress or challenges in developing commercial space transport capabilities. GAO analyzed NASA reports, briefings, and other information and held interviews with NASA and commercial …
Date:
June 16, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Financial Management: Thousands of Civilian Agency Contractors Abuse the Federal Tax System with Little Consequence
A letter report issued by the Government Accountability Office with an abstract that begins "Tax abuses by contractors working for the Department of Defense, on which GAO previously reported, have led to concerns about similar abuses by those hired by civilian agencies. GAO was asked to determine if similar problems exist at civilian agencies and, if so, to (1) quantify the amount of unpaid federal taxes owed by civilian agency contractors paid through the Financial Management Service (FMS), (2) identify any statutory or policy impediments and control weaknesses that impede tax collections under the Federal Payment Levy Program (FPLP), and (3) determine whether there are indications of abusive or potential criminal activity by contractors with unpaid tax debts."
Date:
June 16, 2005
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library