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Configuring the SLC linac for injection into PEP
From time to time the normal SLC physics program is to be interrupted so that beam can be delivered to PEP. In order that the switch to PEP injection (and the switch back again) can be accomplished quickly and easily, the gun, the damping rings, the linac phase ramp, the energy profile of the linac klystrons for the scavenger bunch, and the entire positron production system are to be kept the same as in the SLC configuration. What mainly remains to be changed is the linac klystron profile for the leading two bunches - those going to PEP. The new klystron profile must be such that it leaves these two beams (1) with final energies that match that of the storage ring and (2) with final energy spectra that fit within the energy aperture of the PEP transfer line. The conditions that need to be met in order to achieve these two goals are discussed in this note. 1 ref., 2 figs.
Date:
December 15, 1989
Creator:
Bane, K.L.F.
Object Type:
Report
System:
The UNT Digital Library
Exploration of the Planets: A History, A Prospect, and Some Issues
This report discusses the history and future of planetary exploration programs by the U.S. and the Soviet Union. Topics covered are motivations for planetary exploration, unmanned missions sent to Mars and Venus by the U.S. and Soviet Union, plans for manned missions to planets such as Mars, technical needs and costs for planetary space missions, and long-term plans and ideas.
Date:
December 15, 1969
Creator:
Devoe, Barbara M. & Sheldon, Charles S., II
Object Type:
Report
System:
The UNT Digital Library
LMFBR safety program. Annual technical progress report. Government fiscal year, 1977
Information is presented concerning the development of the SOMIX-1 computer code for sodium drop burning analysis; experimental analysis of burning sodium drops; aerosol leakage from containment buildings; high-temperature-concentration aerosols; aerosol source term from vaporized fuel; properties of high-temperature fuel mixtures; and development of the COMRADEX computer code for analysis of radiological doses in the environment from LMFBR accidents.
Date:
December 15, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Heavy leptons at the SSC
It is argued that detection of heavy leptons at the Superconducting Super Collider seems to be very difficult but perhaps not impossible. The feasibility is shown to depend critically upon the ability to identify events with W's decaying hadronically and missing transverse momentum. (LEW)
Date:
December 15, 1987
Creator:
Anderson, G. & Hinchliffe, I.
Object Type:
Article
System:
The UNT Digital Library
Presupernova evolution of massive stars
Population I stars of 15 M/sub mass/ and 25 M/sub mass/ have been evolved from the zero-age main sequence through iron core collapse utilizing a numerical model that incorporates both implicit hydrodynamics and a detailed treatment of nuclear reactions. The stars end their presupernova evolution as red supergiants with photospheric radii of 3.9 x 10/sup 13/ cm and 6.7 x 10/sup 13/ cm, respectively, and density structures similar to those invoked to explain Type II supernova light curves on a strictly hydrodynamic basis. Both stars are found to form substantially neutronized ''iron'' cores of 1.56 M/sub mass/ and 1.61 M/sub mass/, and central electron abundances of 0.427 and 0.439 moles/g, respectively, during hydrostatic silicon burning. Just prior to collapse, the abundances of the elements in the 25 M/sub mass/ star (excluding the neutronized iron core) have ratios strikingly close to their solar system values over the mass range from oxygen to calcium, while the 15 M/sub mass/ star is characterized by large enhancements of Ne, Mg, and Si. It is pointed out on nucleosynthetic grounds that the mass of the neutronized core must represent a lower limit to the mass of the neutron star or black hole remnant that stars …
Date:
December 15, 1977
Creator:
Weaver, T. A.; Zimmerman, G. B. & Woosley, S. E.
Object Type:
Report
System:
The UNT Digital Library
LIMB Demonstration Project Extension
The basic goal of the Limestone Injection Multistage Burner (LIMB) demonstration is to extend LIMB technology development to a full- scale application on a representative wall-fired utility boiler. The successful retrofit of LIMB to an existing boiler is expected to demonstrate that (a) reductions of 50 percent or greater in SO{sub x} and NO{sub x} emissions can be achieved at a fraction of the cost of add-on FGD systems, (b) boiler reliability, operability, and steam production can be maintained at levels existing prior to LIMB retrofit, and (c) technical difficulties attributable to LIMB operation, such as additional slagging and fouling, changes in ash disposal requirements, and an increased particulate load, can be resolved in a cost-effective manner. The primary fuel to be used will be an Ohio bituminous coal having a nominal sulfur content of 3 percent or greater.
Date:
December 15, 1988
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Occurrence and use of complex resonances (poles in scattering and radiation problems)
In a wide variety of physics problems, especially those which involve wave phenomena such as in electromagnetics and acoustics, a behavior results that can be described by systems of linear (partial) differential equations. Solutions to such problems often can be expressed simply in the form of an exponential series. Some specific background material for this approach is discussed, and a variety of example applications is summarized. (WHK)
Date:
December 15, 1981
Creator:
Miller, E. K.
Object Type:
Article
System:
The UNT Digital Library
Attempt to compare two arc orbit correction schemes analytically
Consider a transport line that consists of periodic cells. Let the beam position monitors and the orbit correctors be located with the same period as the cells and let the BPM's and the corrector distributions interlace each other. The arrangement does not always provide a stable orbit correction. The criterion for stability has been derived by Joe Murray and is reproduced. We calculate the rms orbit, the effect of BPM errors and the rms corrector strength in such correction schemes, yielding analytic formulae for these quantities. We then apply these formulae to the SLC arcs.
Date:
December 15, 1983
Creator:
Chao, A. & Weng, W.
Object Type:
Report
System:
The UNT Digital Library
Energy and protein production from pulp mill wastes. Progress report, September 15, 1977--December 15, 1977
Effort during the past quarter was directed at two specific objectives. First, the conversion of the protein production experiments from batch to continuous operation and, second, the identification of growth stimulants to increase methane yield. Early in the project, yeast production ranging from 0.5 to 5.0 grams of dry yeast per liter had been obtained in batch cultures. Highest yields were consistently attained on SSL (spent sulfite liquor) which had been ozonated for only 10 minutes. Continuous fermentation studies using three hour ozonated SSL confirmed the characteristic yields demonstrated in previous batch tests. Contamination, which occurred at residence times less than two days, appeared to decrease protein production rate and yield. Vitamins and minerals, fatty acids, and low molecular weight alcohols were investigated as possible stimulants for methane production. Only the combination of alcohol plus vitamins and minerals seemed to be effective. Stimulated production failed to achieve the 25 ml per hour rate that had randomly been exceeded many times over the past six months. Additional culture studies are planned to examine the possibility that the mixed culture, now present in the anaerobic fermenters, has degenerated slowly over the past year.
Date:
December 15, 1977
Creator:
Jurgensen, M. F. & Patton, J. T.
Object Type:
Report
System:
The UNT Digital Library
The limnology of L Lake: Results of the L-Lake monitoring program, 1986--1989
L Lake was constructed in 1985 on the upper regions of Steel Creek, SRS to mitigate the heated effluents from L Reactor. In addition to the NPDES permit specifications (Outfall L-007) for the L-Reactor outfall, DOE-SR executed an agreement with the South Carolina Department of Health and Environmental Control (SCDHEC), that thermal effluents from L-Reactor will not substantially alter ecosystem components in the approximate lower half of L Lake. This region should be inhabited by Balanced (Indigenous) Biological Communities (BBCs) in accordance with Section 316(a) of the Pollution Control (Clean Water) Act (Public Law 92-500). In response to this requirement the Environmental Sciences Section/Ecology Group initiated a comprehensive biomonitoring program which documented the development of BBCs in L Lake from January 1986 through December 1989. This report summarizes the principal results of the program with regards to BBC compliance issues and community succession in L Lake. The results are divided into six sections: water quality, macronutrients, and phytoplankton, aquatic macrophytes, zooplankton, benthic macroinvertebrates, fish, and community succession. One of the prime goals of the program was to detect potential reactor impacts on L Lake.
Date:
December 15, 1991
Creator:
Bowers, J.A.
Object Type:
Report
System:
The UNT Digital Library
SHUTDOWN COOLING TEST. Pathfinder Atomic Power Plant Summary Report
Tests are performed on Pathfinder superheat fuel element mockups, under reactor conditions of 600 psig, in order to determine the parameters influencing heat transfer from the fuel elements to the moderating water under shutdown conditions. The peak temperatures reached by the superheat elements are also found as functions of the heat generation rate. A mathematical model of the heat transfer system is developed. (T.F.H.)
Date:
December 15, 1961
Creator:
Littleton, W.E. & Ross, W.
Object Type:
Report
System:
The UNT Digital Library
Isotopic HCl transfer laser
An HCl laser which uses isotopic V-V energy transfer collisions as a pumping mechanism has been demonstrated. This multiline laser, which utilized an intracavity cold gas isotope filter, increased the energy from the P/sub 1/ lines of H/sup 37/Cl while decreasng the energies of the P/sub 1/ and P/sub 2/ lines of H/sup 35/Cl. Previously unreported lines, including emission from R branch transitions, have also been observed from single-line HCl and HBr lasers.
Date:
December 15, 1977
Creator:
Badcock, C.C.; Hwang, W.C.; Kalsch, J.F. & Kamada, R.F.
Object Type:
Report
System:
The UNT Digital Library
Arlington National Cemetery: Additional Actions Needed to Continue Improvements in Contract Management
A letter report issued by the Government Accountability Office with an abstract that begins "What GAO Found"
Date:
December 15, 2011
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Tax Gap: Actions Needed to Address Noncompliance with S Corporation Tax Rules
A letter report issued by the Government Accountability Office with an abstract that begins "S corporations are one of the fastest growing business types, accounting for nearly 4 million businesses in 2006. However, long-standing problems with S corporation compliance produce revenue losses in individual income taxes and employment taxes. GAO was asked to (1) describe the reasons businesses choose to become S corporations, (2) analyze types of S corporation noncompliance, what IRS has done to address noncompliance, and options to improve compliance, and (3) further analyze the extent of shareholder compensation noncompliance and identify options for improving compliance. GAO analyzed IRS research and examination data; interviewed IRS officials, examiners and other knowledgeable stakeholders; and reviewed relevant literature."
Date:
December 15, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Large Truck Safety: Federal Enforcement Efforts Have Been Stronger Since 2000, but Oversight of State Grants Needs Improvement
A letter report issued by the Government Accountability Office with an abstract that begins "About 5,000 people die and more than 120,000 are injured each year from crashes involving large trucks. The Federal Motor Carrier Safety Administration (FMCSA) has several enforcement programs to improve truck safety and funds similar enforcement programs in states through its Motor Carrier Safety Assistance Program (MCSAP). Following concern by Congress and others in 1999 that FMCSA's enforcement approach was ineffective, the agency committed to take stronger actions. This study reports on how FMCSA's enforcement approach has changed, how it makes decisions about its enforcement approach, and how it ensures that its grants to states contribute to the agency's mission of saving lives."
Date:
December 15, 2005
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Medicare Advantage: Characteristics, Financial Risks, and Disenrollment Rates of Beneficiaries in Private Fee-for-Service Plans
A letter report issued by the Government Accountability Office with an abstract that begins "Medicare Advantage (MA) plans are an alternative to the original Medicare fee-for-service (FFS) program. Private fee-for-service (PFFS) plans--one type of MA plan--give beneficiaries an option that is more like Medicare FFS than other MA plans, with a wider choice of providers and less plan management of services and providers. PFFS enrollment increased from about 35,000 beneficiaries in June 2004 to about 2.3 million in June 2008. This report compares PFFS plans to other MA plans and Medicare FFS in three areas: (1) characteristics of beneficiaries, (2) financial risks for beneficiaries who do not contact their plans before receiving services, and (3) disenrollment rates. To do this work, GAO reviewed materials from a selected sample of nine PFFS plan sponsors, analyzed Medicare data, and interviewed officials from CMS, which administers the Medicare program, and other organizations."
Date:
December 15, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Information Technology: Status and Challenges of Employee Exchange Program
A letter report issued by the Government Accountability Office with an abstract that begins "Recognizing the importance of human capital to information technology (IT) and the need to improve the skills of federal IT workers, Congress created the Information Technology Exchange Program (ITEP) as part of the E-Government Act of 2002. ITEP aims to improve federal IT skills through exchanges of staff between the government and the private sector. The Office of Personnel Management (OPM) was required to issue implementing regulations, which it did in September 2005, and to report semiannually to the Congress. OPM's regulations require that each participating agency develop an ITEP plan before proceeding with exchanges. Agencies' opportunity to begin exchanges ends in December 2007. GAO is required to evaluate the program by December 2006. As agreed, GAO's objectives were to determine (1) the status of the program and (2) challenges facing agencies. To address these objectives, GAO analyzed key documents and interviewed OPM, participating agencies, and others."
Date:
December 15, 2006
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Small Business Administration: A Review of SBA's Estimate of Impact of Legislative Proposals for the 7(a) Loan Guarantee Program
Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Small Business Administration's (SBA) estimate of the impact of legislative proposals on the 7(a) Loan Guarantee Program, focusing on: (1) how SBA prepared estimates of H.R. 2615's impact on the average size and number of loans SBA makes; (2) ways that SBA could have improved its estimates; (3) how SBA analyzed the impact of the legislative proposals on the credit subsidy rate for the 7(a) loan program; and (4) ways to improve this analysis."
Date:
December 15, 1999
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Compacts of Free Association: Micronesia and the Marshall Islands Face Challenges in Planning for Sustainability, Measuring Progress, and Ensuring Accountability
A letter report issued by the Government Accountability Office with an abstract that begins "In 2003, the United States signed Compacts of Free Association with the Federated States of Micronesia (FSM) and the Republic of the Marshall Islands (RMI), amending a 1986 compact with the countries. The amended compacts provide the countries with a combined total of $3.6 billion from 2004 to 2023, with the annual grants declining gradually. The assistance, targeting six sectors, is aimed at assisting the countries' efforts to promote economic advancement and budgetary self-reliance. The Department of the Interior (Interior) administers and oversees the assistance. Complying with a legislative requirement, GAO examined, for fiscal years 2004 through 2006, (1) the FSM's and the RMI's use of compact funds, (2) their efforts to assess progress toward development goals, (3) their monitoring of sector grants and accountability for compact funds, and (4) Interior's administrative oversight of the assistance. GAO visited the FSM and the RMI; reviewed reports; and interviewed officials from the FSM, RMI, and U.S. governments."
Date:
December 15, 2006
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Hospital Accreditation: Joint Commission on Accreditation of Healthcare Organizations' Relationship with Its Affiliate
A letter report issued by the Government Accountability Office with an abstract that begins "Hospitals must meet certain conditions of participation established by the Centers for Medicare & Medicaid Services (CMS) in order to receive Medicare payments. In 2003, most hospitals--over 80 percent--demonstrated compliance with most of these conditions through accreditation from the Joint Commission on Accreditation of Healthcare Organizations (Joint Commission). Established in 1986, Joint Commission Resources, Inc. (JCR), a nonprofit affiliate of the Joint Commission, provides consultative technical assistance services to hospitals. Both organizations acknowledge the need to ensure that JCR's services do not--and are not perceived to--affect the independence of the Joint Commission's accreditation process. GAO was asked to provide information on the relationship between the Joint Commission and JCR. This report describes (1) their organizational relationship, and (2) the significant steps they have taken to prevent the improper sharing of information, obtained through their accreditation and consulting activities, respectively, since JCR was established. GAO reviewed pertinent documents, including conflict-of-interest policies and information about the organizations' financial relationship, and interviewed staff and board members from both organizations, JCR clients, and CMS officials."
Date:
December 15, 2006
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Improvement Continues in DOD's Reporting on Sustainable Ranges, but Opportunities Exist to Improve Its Range Assessments and Comprehensive Plan
Correspondence issued by the Government Accountability Office with an abstract that begins "Recent operations in Iraq, Afghanistan, and other locations around the world have highlighted the need for U.S. forces to train as they intend to fight. Department of Defense (DOD) training ranges and operating areas are required to be managed and operated to support their long-term viability and utility to meet the national defense mission. The use of military training ranges enhances training by providing realistic, hands-on experience. Sustainable training range management focuses on the practices that allow the military to manage its ranges in a way that ensures their usefulness well into the future. Because the military faces obstacles in acquiring new training lands, the preservation and sustainable management of its current lands must be priorities. New advances in technology, coupled with a shift in force posture, mean that DOD needs to continually update and maintain its training ranges. Military training ranges vary in size from a few acres--for small arms training--to over a million acres for large maneuver exercises and weapons testing, and include broad open ocean areas for offshore training and testing. These ranges face ever increasing limitations and restrictions on land, water, and airspace as …
Date:
December 15, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Department of Homeland Security: A Comprehensive Strategy Is Still Needed to Achieve Management Integration Departmentwide
Testimony issued by the Government Accountability Office with an abstract that begins "Significant management challenges exist for the Department of Homeland Security (DHS) as it continues to integrate its varied management processes, policies, and systems in areas such as financial management and information technology. These activities are primarily led by the Under Secretary for Management (USM), department management chiefs, and management chiefs in DHS's seven components. This testimony summarizes a new GAO report (GAO-10-131) that examined (1) the extent to which DHS has developed a comprehensive strategy for management integration that includes the characteristics recommended in GAO's earlier 2005 report, (2) how DHS is implementing management integration, and (3) the extent to which the USM is holding the department and component management chiefs accountable for implementing management integration through reporting relationships. GAO reviewed DHS plans and interviewed DHS management officials."
Date:
December 15, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Natural Gas and Electricity Markets: Federal Government Actions to Improve Private Price Indices and Stakeholder Reaction
A letter report issued by the Government Accountability Office with an abstract that begins "Since the 1970s, the natural gas and electricity industries have each undergone a shift toward greater competition, referred to as restructuring. This restructuring has moved these industries from regulated monopolies to markets in which competitors vie for market share and wholesale prices are largely determined by supply and demand. Amid this restructuring, private companies have published information about these markets, including reports of market prices in various locations--referred to as price indices. These indices, whether for short-term "spot" or long-term "forward" markets, are developed by surveying selected market participants who voluntarily supply price information. Market participants rely on these price indices to help them make informed decisions about trading these commodities and to evaluate new investments. In recent years, confidence in price indices has been shaken due to misreporting and other abuses. During the energy crisis in the West in 2000-2001, several market participants were found to have purposefully misreported prices in order to manipulate these indices for financial gain. In this context, GAO agreed to answer the following questions: (1) What federal regulatory and statutory efforts have been taken to improve price indices in electricity …
Date:
December 15, 2005
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Defense Logistics: Department of Defense's Annual Report on the Status of Prepositioned Materiel and Equipment Can Be Enhanced to Better Inform Congress
Correspondence issued by the Government Accountability Office with an abstract that begins "The Department of Defense (DOD) prepositions equipment at strategic locations around the world in order to field combat-ready forces in days, rather than the weeks it would take if equipment had to be moved from the United States to the locations of conflicts. DOD's prepositioned stock programs support the National Military Strategy and are an important part of its overall strategic mobility framework. Prepositioned materiel and equipment have played an important role in supporting ongoing operations in Iraq and Afghanistan. However, sustained continuing operations in Iraq and Afghanistan have taken a toll on the condition and readiness of military equipment. In April 2008 we testified that it was unclear when these critical reserve stocks would be reconstituted or how much the total cost would be. The Army and Marine Corps face a number of ongoing and long-term challenges that will affect both the timing and the cost of equipment repair and replacement--particularly to its prepositioned stocks. DOD has reported to Congress that the military services are committed to resetting prepositioned materiel but must balance its efforts within the priorities of reorganization of those prepositioned capabilities and changes in …
Date:
December 15, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library