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Medicare Home Health Care: Payments to Home Health Agencies Are Considerably Higher than Costs

Description: A letter report issued by the General Accounting Office with an abstract that begins "The Balanced Budget Act of 1997 significantly changed Medicare's home health care payments to home health agencies (HHAs). Under a prospective payment system (PPS), HHAs are paid a fixed amount, adjusted for beneficiary care needs, for providing up to 60 days of care---termed a "home health episode." The act also imposed new interim payment limits to moderate spending until the PPS could be implemented. Altho… more
Date: May 6, 2002
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
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D.C. Family Court: Additional Actions Should Be Taken to Fully Implement Its Transition

Description: A letter report issued by the General Accounting Office with an abstract that begins "The District of Columbia Family Court Act of 2001 was enacted to (1) redesignate the Family Division of the Superior Court as the Family Court of the Superior Court, (2) recruit trained and experienced judges to serve in the Family Court, and (3) promote consistency and efficiency in the assignment of judges and the courts actions and proceedings. The act requires the chief judge of the Superior Court to submi… more
Date: May 6, 2002
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Laser Beam Profile Monitor Development at Bnl for Sns.

Description: A beam profile monitor for H-beams based on laser photoneutralization is being developed at Brookhaven National Laboratory (BNL) for use on the Spallation Neutron Source (SNS) [l]. An H ion has a first ionization potential of 0.75eV and can be neutralized by light from a Nd:YAG laser (h=1064nm). To measure beam profiles, a narrow laser beam is passed through the ion beam neutralizing a portion of the H-beam struck by the laser. The laser trajectory is stepped across the ion beam. At each laser … more
Date: May 6, 2002
Creator: Connolly, R.; Cameron, P.; Cupolo, J.; Gassner, D.; Grau, M.; Kesselman, M. et al.
Partner: UNT Libraries Government Documents Department
open access

Guide to Low-Emission Boiler and Combustion Equipment Selection

Description: Boiler owners and operators who need additional generating capacity face a number of legal, political, environmental, economic, and technical challenges. Their key to success requires selection of an adequately sized low-emission boiler and combustion equipment that can be operated in compliance with emission standards established by state and federal regulatory agencies. Recognizing that many issues are involved in making informed selection decisions, the U.S. Department of Energy (DOE), Offic… more
Date: May 6, 2002
Creator: Oland, C. B.
Partner: UNT Libraries Government Documents Department
open access

Preliminary Design of the Beam Loss Monitoring System for the SNS

Description: The SNS to be built at Oak Ridge National Laboratory will provide a high average intensity 1 GeV beam to produce spallation neutrons. Loss of a even small percentage of this intense beam would result in high radiation. The Beam Loss Monitor (ELM) system must detect such small, long term losses yet be capable of measuring infrequent short high losses. The large dynamic range presents special problems for the system design. Ion chambers will be used as the detectors. A detector originally designe… more
Date: May 6, 2002
Creator: Witkover, R. & Gassner, D.
Partner: UNT Libraries Government Documents Department
open access

Lead-bismuth spallation target design of the accelerator-driven test facility (ADTF).

Description: A design methodology for the lead-bismuth eutectic (LBE) spallation target has been developed and applied for the accelerator-driven test facility (ADTF) target. This methodology includes the target interface with the subcritical multiplier (SCM) of the ADTF and the different engineering aspects of the target design, physics, heat-transfer, hydraulics, structural, radiological, and safety analyses. Several design constrains were defined and utilized for the target design process to satisfy diff… more
Date: May 6, 2002
Creator: Gohar, Y.; Finck, P.; Hanson, A.; Herceg, J.; Koploy, M.; Krajtl, L. et al.
Partner: UNT Libraries Government Documents Department
open access

A web-based virtual lighting simulator

Description: This paper is about a web-based ''virtual lighting simulator,'' which is intended to allow architects and lighting designers to quickly assess the effect of key parameters on the daylighting and lighting performance in various space types. The virtual lighting simulator consists of a web-based interface that allows navigation through a large database of images and data, which were generated through parametric lighting simulations. At its current form, the virtual lighting simulator has two main… more
Date: May 6, 2002
Creator: Papamichael, Konstantinos; Lai, Judy; Fuller, Daniel & Tariq, Tara
Partner: UNT Libraries Government Documents Department
open access

Towards ultrasensitive isotope trace analysis {sup 41}Ca.

Description: An Atom Trap Trace Analysis (ATTA) system based on the technique of laser manipulation of neutral atoms is being developed to count individual {sup 41}Ca atoms present in natural samples with an isotopic abundance of 10{sup -15}. Trapping of all stable calcium isotopes has been demonstrated and single-atom counting has been realized. For the most abundant isotope, {sup 40}Ca (97% isotopic abundance), a magneto-optical trap (MOT) loading rate of 2 x 10{sup 10} atoms/s has been reached at the ove… more
Date: May 6, 2002
Creator: Moore, I. D.; Bailey, K.; Lu, Z.-T.; Mueller, P.; O'Connor, T. P. & Young, L.
Partner: UNT Libraries Government Documents Department
open access

Bpm System for the Sns Ring and Transfer Lines.

Description: The Spallation Neutron Source Ring accumulates about 1060 pulses of 38mA peak current IGeV H-minus particles from the Linac thru the HEBT line, then delivers this accumulated beam in a single pulse to the mercury target via the RTBT line. Bunching frequency of beam in the HEBT line is 402.5MHz, and about 1MHz in the Ring and RTBT. Position monitor electrodes in HEBT are of the shorted stripline type, with apertures of 12cm except in the dispersive bend, where the aperture is 21cm. Ring and RTBT… more
Date: May 6, 2002
Creator: Dawson, W. C.; Cameron, P.; Cerniglia, P.; Cupolo, J.; Degen, C.; Dellapenna, A. et al.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Matched Blumlein and Slow-Fast Blumlein Systems for Induction Accelerator Power Systems

Description: Two approaches for driving an induction acceleration using a number of stacked Blumlein lines are evaluated and compared. The matched or balanced Blumlein utilizes a single switch and two transmission line sections incorporating identical dielectric materials to drive a beam load. The matched Blumlein line system further requires ferro-magnetic isolation to prevent the accelerating electric field from appearing on the external structure of the system. The Slow-Fast Blumlein line power system ut… more
Date: May 6, 2002
Creator: Nunnally, W C
Partner: UNT Libraries Government Documents Department
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DESIGN OF AN IMPROVED ION CHAMBER FOR THE SNS.

Description: Ion chambers are in common use as beam loss monitors at many accelerators. A unit designed and used at FNAL and later at BNL was proposed for the SNS. Concerns about the ion collection times and low collection efficiency at high loss rates led to improvements to this unit and the design of an alternate chamber with better characteristics. Prototypes have been tested with pulsed beams. The design and test results for both detectors will be presented.
Date: May 6, 2002
Creator: Witkover, R. L. & Gassner, D.
Partner: UNT Libraries Government Documents Department
open access

SPALLATION NEUTRON SOURCE BEAM CURRENT MONITOR ELECTRONICS.

Description: This paper will discuss the present electronics design for the beam current monitor system to be used throughout the Spallation Neutron Source (SNS) under construction at Oak Ridge National Laboratory. The beam is composed of a micro-pulse structure due to the 402.5MHz RF, and is chopped into mini-pulses of 645ns duration with a 300ns gap, providing a macro-pulse of 1060 mini-pulses repeating at a 60Hz rate. Ring beam current will vary from about 15ma peak during studies, to about 50Amps peak (… more
Date: May 6, 2002
Creator: Kesselman, M. & Dawson, W. C.
Partner: UNT Libraries Government Documents Department
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Validation and Comparison of KENO V.a and KENO-VI

Description: This report documents the validation and comparison of KENO V.a and KENO-VI using the SCALE 27-group ENDF/B-IV and 238-group ENDF/B-V cross-section libraries against critical experiments. Experiments considered were primarily high- or low-enriched uranium systems. The results indicate that KENO V.a and KENO-VI Monte Carlo Criticality Programs accurately calculate a broad range of critical experiments. A number of the calculations showed a positive or negative bias in excess of 1 1/2% in k-effec… more
Date: May 6, 2002
Creator: Fox, P.B.
Partner: UNT Libraries Government Documents Department
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Review of Analytes of Concern and Sample Methods for Closure of DOE High Level Waste Storage Tanks

Description: Sampling residual waste after tank cleaning and analysis for analytes of concern to support closure and cleaning targets of large underground tanks used for storage of legacy high level radioactive waste (HLW) at Department of Energy (DOE) sites has been underway since about 1995. The DOE Tanks Focus Area (TFA) has been working with DOE tank sites to develop new sampling plans, and sampling methods for assessment of residual waste inventories. This paper discusses regulatory analytes of concern… more
Date: May 6, 2002
Creator: Thomas, T. R.
Partner: UNT Libraries Government Documents Department
open access

Campaign Financing

Description: This is one report in the series of reports that discuss the campaign finance practices and related issues. Concerns over financing federal elections have become a seemingly perennial aspect of our political system, centered on the enduring issues of high campaign costs and reliance on interest groups for needed campaign funds. The report talks about the today’s paramount issues such as perceived loopholes in current law and the longstanding issues: overall costs, funding sources, and competi… more
Date: May 6, 2002
Creator: Cantor, Joseph E.
Partner: UNT Libraries Government Documents Department
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