In this study a novel optical trace gas sensor based on a perforated hollow waveguide (PHW) was proposed. The sensor has been given the acronym ESHOW for Environmental Sensor using Hollow Optical Waveguides. Realizations of the sensor have demonstrated rapid response time (<2s), low minimum detection limits (typically around 3 x 10-5 absorbance). Operation of the PHW technology has been demonstrated in the near-infrared (NIR) and mid0infrared (MIR) regions of the spectrum. Simulation of sensor performance provided in depth understanding of the signals and signal processing required to provide high sensitivity yet retain rapid response to gas changes. A dedicated sensor electronics and software foundation were developed during the course of the Phase II effort. Commercial applications of the sensor are ambient air and continuous emissions monitoring, industrial process control and hazardous waste site monitoring. There are numerous other applications for such a sensor including medical diagnosis and treatment, breath analysis for legal purposes, water quality assessment, combustion diagnostics, and chemical process control. The successful completion of Phase II resulted in additional funding of instrument development by the Nations Institute of Heath through a Phase I SBIR grant and a strategic teaming relationship with a commercial manufacture of medical instrumentation. …

Some policymakers, believing that disparities in broadband access across American society could have adverse economic and social consequences on those left behind, assert that the federal government should play a more active role to avoid a “digital divide” in broadband access. One approach is for the federal government to provide financial assistance to support broadband deployment in underserved areas. Others, however, believe that federal assistance for broadband deployment is not appropriate. Some opponents question the reality of the “digital divide,” and argue that federal intervention in the broadband marketplace would be premature and, in some cases, counterproductive.

Over the last several years most of the sludge and liquid from the Liquid Low-Level Waste (LLLW) tanks at ORNL has been transferred and consolidated in the Melton Valley Storage Tanks (MVST). The contents of the MVST tanks at the time the sludge samples were collected for this report included the original inventory in the MVSTs along with the sludge and liquid from the Bethel Valley Evaporator Service Tanks (BVEST), Old Hydrofracture (OHF) tanks, and the Gunite and Associated Tanks (GAAT). During the summer of 2001 full core samples of sludge were collected from the MVST tanks. The purpose of this sampling campaign was to characterize and validate that the current radiochemical and chemical contents of the MVST sludge, which was needed to meet the contract agreements prior to the transfer of the waste to another DOE contractor for processing. This report only discusses the analytical characterization of the sludge from the MVST waste tanks. The isotopic data presented in this report supports the position that fissile isotopes of uranium ({sup 233}U and {sup 235}U) and plutonium ({sup 239}Pu and {sup 241}Pu) were ''denatured'' as required by the administrative controls stated in the ORNL LLLW waste acceptance criteria (WAC). In …

The objective of the current work is to calculate changes in system multiplication due to perturbations in cross-section temperature. Moreover, the study is intended to investigate cross-section perturbations using ENDF/B-VI data which are the most up-to-date cross-section information currently available in the United States. The purpose of this letter report is to document the work that has been completed during the 2001 fiscal year. In addition, the report provides the current status of the temperature-effects study. During the fiscal year, the majority of effort has focused on the development of a 238-group ENDF/B-VI library using the AMPX cross-section processing system. At this point, 340 ENDF/B-VI evaluations have been processed (i.e., 15 thermal and 325 nonthermal evaluations), and a prototypic 238-group library has been developed. Efforts are currently in progress to test the cross-section library for accuracy. Once the library is determined to be suitable for radiation transport calculations, the library will be used to perform reactivity calculations to assess the impact of cross-section temperature perturbations. Regarding the temperature perturbation studies, a FORTRAN program (CRCREAD) has been developed to read the CRCbenchmark models (i.e., MCNP input files) and search for the 130 different isotopes that have been designated by the YMP …

Industrial consumers of energy now have the opportunity to participate directly in electricity generation. This report seeks to give the reader (1) insights into the various types of generation services that distributed generation (DG) units could provide, (2) a mechanism to evaluate the economics of using DG, (3) an overview of the status of DG deployment in selected states, and (4) a summary of the communication technologies involved with DG and what testing activities are needed to encourage industrial application of DG. Section 1 provides details on electricity markets and the types of services that can be offered. Subsequent sections in the report address the technical requirements for participating in such markets, the economic decision process that an industrial energy user should go through in evaluating distributed generation, the status of current deployment efforts, and the requirements for test-bed or field demonstration projects.

Other written product issued by the General Accounting Office with an abstract that begins "The JFMIP White Paper, "Parallel Operation of Software: Is It A Desirable Software System Transition Technique?" is intended to assist agencies when developing appropriate risk mitigation strategies when to new financial systems, especially commercial off-the-shelf software where existing business processes must be reengineered to avoid software customization. This White Paper updates selected information contained in the JFMIP Framework for Federal Financial Management Systems, issued in January 1995, regarding to a new system. Because the Framework document is comprehensive, this white paper, as well as others to come, is designed to update and expand upon selected topics that are of critical interest to agencies and oversight communities."

This project was initially targeted to the making of coke for blast furnaces by using proprietary technology of Calderon in a phased approach, and Phase I was completed. The project was then re-directed to the making of iron units. U.S. Steel teamed up with Calderon for a joint effort which will last 30 months to produce directly reduced iron with the potential of converting it into molten iron (hot metal) consistent with the Roadmap recommendations of 1998 prepared by the Steel Industry in cooperation with the Department of Energy. The work which is labeled as Phase II will take place at two levels; namely, the bench scale level and the process development unit (PDU) level. The bench scale work is being divided into two parts; the construction and operation of Bench Scale No.1 to make hot metal direct as one part and the construction and operation of Bench Scale No.2 to make DRI with its conversion to hot metal as the second part. The work at the PDU consists of getting the PDU which exists ready for advancing the activities from bench scale to PDU level.

Data on ground-water levels, discharges, and withdrawals from a variety of ground-water sources in the study area are reported for calendar year 1998.

Data on ground-water levels, discharges, and withdrawals from a variety of ground-water sources in the study area are reported for calendar year 1999.

A letter report issued by the General Accounting Office with an abstract that begins "The Federal Housing Administration's (FHA) homeownership centers use more than 20 different information systems implemented by the Department of Housing and Urban Development (HUD) headquarters, including seven major systems, databases developed by the centers, and various different telephone systems. Some of these technologies were implemented before FHA formed the centers and transferred some responsibilities to lenders and contractors. Others were implemented later, to help FHA staff oversee lenders and contractors and provide customer service. Although homeownership center staff have developed specialized databases to help them better meet their responsibilities, neither FHA's single-family information systems nor its telephone systems adequately support the centers' efforts. To better ensure that FHA's single-family information systems support current center operations, HUD is developing a systems blueprint, or enterprise architecture. HUD's Office of the Chief Information Officer plans to finish defining the current capabilities of FHA's information systems by the fall of 2001 and to have partially defined the desired capabilities of all the Department's information systems by January 2002."

Testimony issued by the General Accounting Office with an abstract that begins "Before September 11, insurance coverage for losses from terrorism was a normal feature of insurance contracts. The attacks on the World Trade Center and the Pentagon have changed insurers' perceptions of their risk exposure. Both insurers and reinsurers say that they do not know how much to charge for this coverage, and because they cannot predict future losses, they may exclude terrorism insurance from future contracts unless the federal government provides some guidance to the industry. Several insurance programs in the United States and other countries ensure that insurance will be available to cover risks that the private sector has been unable or unwilling to cover, including losses from catastrophic events and terrorism. For government insurance programs, the question of long-term cost and program funding needs to be addressed before any program is established. Some federal insurance programs have a statutory intent to provide subsidized coverage, while others are intended to be self-funding. Regardless of statutory intent, if federal insurance is underpriced relative to its long-run costs and the federal government pays the difference, a government subsidy results."

Testimony issued by the General Accounting Office with an abstract that begins "Before September 11, insurance coverage for losses from terrorism was a normal feature of insurance contracts. The attacks on the World Trade Center and the Pentagon have changed insurers' perceptions of their risk exposure. Both insurers and reinsurers say that they do not know how much to charge for this coverage and because they cannot predict future losses, they may exclude terrorism insurance from future contracts unless the federal government provides some guidance to the industry. Several insurance programs in the United States and other countries ensure that insurance will be available to cover risks that the private sector has been unable or unwilling to cover, including losses from catastrophic events and terrorism. For government insurance programs, the question of long-term cost and program funding needs to be addressed before any program is established. Some federal insurance programs have a statutory intent to provide subsidized coverage, while others are intended to be self-funding. Regardless of statutory intent, if federal insurance is underpriced relative to its long-run costs and the federal government pays the difference, a government subsidy results."

The subsurface radioactive disposal site located at the Idaho National Engineering and Environmental Laboratory contains neutron-activated metals from nonfuel nuclear-reactor- core components. A long-term corrosion test is being conducted to obtain site-specific corrosion rates to support efforts to more accurately estimate the transfer of activated elements in an arid vadose zone environment. The tests use nonradioactive metal coupons representing the prominent neutron-activated material buried at the disposal location, namely, Type 304L stainless steel, Type 315L stainless steel, nickel-chromium alloy (UNS NO7718), beryllium, aluminum 6061-T6, and a zirconium alloy, (UNS R60804). In addition, carbon steel (the material presently used in the cask disposal liners and other disposal containers) and a duplex stainless steel (UNS S32550) (the proposed material for the high- integrity disposal containers) are also included in the test program. This paper briefly describes the test program and presents the early corrosion rate results after 1 year and 3 years of underground exposure.

This report examines economic issues relating to across-the-board tax cuts, focusing primarily on distributional issues. The report is divided into four sections. The first section provides a general overview of the tax system. The next discusses recent proposals relating to across-the-board tax cuts. The third section discusses methods of evaluating alternative types of across-the-board tax cuts. The final section briefly discusses issues of efficiency, simplicity, and stabilization policy.

The proposed Next Linear Collider (NLC) will require over 1400 adjustable quadrupoles between the main linacs' accelerator structures. These 12.7 mm bore quadrupoles will have a range of integrated strength from 0.6 to 132 Tesla, with a maximum gradient of 135 Tesla per meter, an adjustment range of +0-20% and effective lengths from 324 mm to 972 mm. The magnetic center must remain stable to within 1 micrometer during the 20% adjustment. In an effort to reduce estimated costs and increase reliability, several designs using hybrid permanent magnets have been developed. All magnets have iron poles and use either Samarium Cobalt or Neodymium Iron to provide the magnetic fields. Two prototypes use rotating rods containing permanent magnetic material to vary the gradient. Gradient changes of 20% and center shifts of less than 20 microns have been measured. These data are compared to an equivalent electromagnet prototype.

This report discusses the issue of U.S. economic assistance to sub-Saharan Africa, highlighting the importance of continued assistance in light of U.S. national security and also various U.S.-led efforts to promote reform amongst African citizens themselves. U.S. assistance finds its way to Africa through a variety of channels, including the USAID-administered DA program, food aid programs, and indirect aid provided through international financial institutions and the United Nations.

Multiscale modeling with crystal plasticity constitutive relations is used to determine the average response of a polycrystal. The measured crystallographic texture of a copper shaped charge liner is used in a crystal plasticity model to construct a yield surface that exhibits normal-shear coupling. Simulations with this yield surface model demonstrate the spinning behavior observed in the spin formed copper shaped charges.

It has been empirically observed that the dependence of J/{psi} and {psi}{prime} production on nuclear mass number A is very similar. This has been postulated to be due to the predominance of color octet pre-resonant states in charmonium production and absorption. Two new experiments, NA60 at CERN and HERA-B at DESY, will measure the {chi}{sub c} A dependence for the first time. These measurements should shed new light on the charmonium production and absorption mechanisms.

The purpose of this catalog is to integrate all available soil physics data and information from vadose zone characterization and performance assessments into one useable, scientifically defensible document.

The purpose of this catalog is to integrate all available soil physics data and information from vadose zone characterization and performance assessments into one usable, scientifically defensible document.

Brookhaven National Laboratory (BNL) has completed production of the superconducting multi-function magnets that are now installed as part of the HERA luminosity upgrade at DESY. The magnets, cryostats, and lead assemblies were designed and built at BNL. To fit inside the existing detectors, the coils plus cryostat structure had to meet a challenging radial budget (e.g., 39 mm horizontally). Two types of magnets were needed and three of each type were built. Each magnet contained normal and skew quadrupole, normal and skew dipole, and sextupole coils. The magnets operate in the {approx}1.5 T solenoid field of a detector. The quadrupole coils produce gradients up to 13 T/m. The dipole coils generate fields up to 0.3 T. Coils were wound under computer control using either seven-strand round cable or a single strand. To simultaneously avoid excessive synchrotron radiation background scattered from the beam pipe and yet have a small cryostat, one type of magnet used a tapered coil structure. The cryogenic system incorporates cooling with both 40 K helium and supercritical helium. All of the coils were tested in liquid helium in a vertical dewar. Quench test results have been excellent. The field quality of the magnets has met the stringent …

For the Neutrino Factory and Muon Collider Collaboration, BNL has considered solenoidal magnet systems of several types to capture pions generated by bombarding a mercury jet with multi-GeV protons. The magnet systems generate up to 20 T, uniform to 5% throughout a cylindrical volume 0.15 m in diameter and 0.6 m long. Axially downstream the field ramps gradually downward by a factor of sixteen, while the bore increases fourfold. The steady-state system needed for an accelerator has many superconducting coils and a radiation-resistant insert of mineral-insulated hollow conductor. Less costly, pulsed systems suffice to study pion capture and the effect of a magnetic field on a jet hit by a proton beam. BNL has explored three types of magnets, each with its principal coils precooled by liquid nitrogen. One type employs two sets of coils energized sequentially. Charged in 23 s by a power supply of 5 MVA, the 16ton outer set generates 10 T and stores 28 MJ, from which, in 1/3 s, to charge a half-ton inner coil that adds 12 1/2 T to the 7 1/2 T remaining from the outer set. An alternative design uses 25 MVA to energize, in 1.4 s, a single 3-ton set …

An assessment of long-term performance of Category 3 waste-enclosing cement grouts requires data about the leachability/diffusion of radionuclide species (iodine-129, technetium-99, and uranium) when the waste forms come in contact with groundwater. Leachability data were collected by conducting dynamic (ANS-16.1) and static leach tests on radionuclide-containing cement specimens. The diffusivity of radionuclides in soil and concrete media was collected by conducting soil-soil and concrete-soil half-cell experiments.

An assessment of long-term performance of Category 3 waste-enclosing cement grouts requires data about the leachability/diffusion of radionuclide species (iodine-129, technetium-99, and uranium) when the waste forms come in contact with groundwater. Leachability data were collected by conducting dynamic (ANS-16.1) and static leach tests on radionuclide-containing cement specimens. The diffusivity of radionuclides in soil and concrete media was collected by conducting soil-soil and concrete-soil half-cell experiments.