Thirty years ago, July 1, 1971, significant enhancement of negative ion emission from a gas discharge following an admixture of cesium was observed for the first time. This observation became the basis for the development of Surface Plasma Sources (SPS) for efficient production of negative ions from the interaction of plasma particles with electrodes on which adsorbed cesium reduced the surface work-function. The emission current density of negative ions increased rapidly from j {approximately} 10 mA/cm{sup 2} to 3.7 A/cm{sup 2} with a flat cathode and up to 8 A/cm{sup 2} with an optimized geometrical focusing in the long pulse SPS, and to 0.3 A/cm{sup 2} for DC SPS, recently increased up to 0.7 A/cm{sup 2}. Discovery of charge-exchange cooling helped decrease the negative ion temperature T below 1 eV, and increase brightness by many orders to a level compatible with the best proton sources, B = j/T> 1 A/cm{sup 2} eV. The combination of the SPS with charge-exchange injection improved large accelerators operation and has permitted beam accumulation up to space-charge limit and overcome this limit several times. The early SPS for accelerators have been in operation without modification for {approximately} 25 years. Advanced version of the SPS for …

This report summarizes the accomplishment made during the second year of this cooperative research effort between Washington University, Ohio State University and Air Products and Chemicals. The technical difficulties that were encountered in implementing Computer Automated Radioactive Particle Tracking (CARPT) in high pressure SBCR have been successfully resolved. New strategies for data acquisition and calibration procedure have been implemented. These have been performed as a part of other projects supported by Industrial Consortium and DOE via contract DE-2295PC95051 which are executed in parallel with this grant. CARPT and Computed Tomography (CT) experiments have been performed using air-water-glass beads in 6 inch high pressure stainless steel slurry bubble column reactor at selected conditions. Data processing of this work is in progress. The overall gas holdup and the hydrodynamic parameters are measured by Laser Doppler Anemometry (LDA) in 2 inch slurry bubble column using Norpar 15 that mimic at room temperature the Fischer Tropsch wax at FT reaction conditions of high pressure and temperature. To improve the design and scale-up of bubble column, new correlations have been developed to predict the radial gas holdup and the time averaged axial liquid recirculation velocity profiles in bubble columns.

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Calcium and chloride are necessary cofactors for the proper function of the oxygen-evolving complex (OEC) of Photosystem II (PS II). Located in the thylakoid membranes of green plants, cyanobacteria and algae, PS II and the OEC catalyze the light-driven oxidation of water into dioxygen (released into the biosphere), protons and electrons for carbon fixation. The actual chemistry of water oxidation is performed by a cluster of four manganese atoms, along with the requisite cofactors Ca{sup 2+} and Cl{sup -}. While the Mn complex has been extensively studied by X-ray absorption techniques, comparatively less is known about the Ca{sup 2+} cofactor. The fewer number of studies on the Ca{sup 2+} cofactor have sometimes relied on substituting the native cofactor with strontium or other metals, and have stirred some debate about the structure of the binding site. past efforts using Mn EXAFS on Sr-substituted PSII are suggestive of a close link between the Mn cluster and Sr, within 3.5 {angstrom}. The most recent published study using Sr EXAFS on similar samples confirms this finding of a 3.5 {angstrom} distance between Mn and Sr. This finding was base3d on a second Fourier peak (R {approx} 3 {angstrom}) in the Sr EXAFS from functional …

Correspondence issued by the General Accounting Office with an abstract that begins "Congress created the State Children's Health Insurance Program (SCHIP) in 1997 to reduce the number of uninsured poor children whose families incomes are too high to qualify for Medicaid. Congress appropriated $40 billion over 10 years (fiscal years 1998 through 2007) for SCHIP. Each state's SCHIP allotment is available as a federal match based on state expenditures. Although the SCHIP statute generally targets children in families with incomes up to 200 percent of the federal poverty level, 13 states' programs cover children in families above 200 percent of the federal poverty level. This report provides information on (1) enrollment and federal expenditures for SCHIP and estimates of the number of and costs to enroll eligible unenrolled children and income-eligible pregnant women and (2) factors that may influence states' future expenditures for SCHIP and the availability of funding for any program expansion."

Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.

A compact neutron generator based on D-D or D-T fusion reactions is being developed at the Lawrence Berkeley National Laboratory. The deuterium or tritium ions are produced in a radio-frequency (RF) driven multicusp plasma source. Seven beamlets are extracted and are accelerated to energy of 100 keV by means of a three-electrode electrostatic accelerator column. The ion beam then impinges on a titanium coated copper target where either the 2.4 MeV D-D or 14 MeV D-T neutrons are generated by fusion reaction. The development of the neutron tube is divided into three phases. First, the accelerator column is operated at hydrogen beam intensity of 15 mA. Second phase consists of deuterium beam runs at pulsed, low duty cycle 150 mA operation. The third phase consists of deuterium or tritium operation at 1.5 A beam current. Phase one is completed and the results of hydrogen beam testing are discussed. Low duty cycle 150 mA deuterium operation is being investigated. Neutron flux will be measured. Finally the phase three operation and the advance neutron generator designs are described.

Testimony issued by the General Accounting Office with an abstract that begins "The National Infrastructure Protection Center (NIPC) is an important element of the U.S.' strategy to protect the nation's infrastructures from hostile attacks, especially computer-based attacks. This testimony discusses the key findings of a GAO report on NIPC's progress in developing national capabilities for analyzing cyber threats and vulnerability data and issuing warnings, enhancing its capabilities for responding to cyber attacks, and establishing information-sharing relationships with governments and private-sector entities. GAO found that progress in developing the analysis, warning, and information-sharing capabilities has been mixed. NIPC began various critical infrastructure protection efforts that have laid the foundation for future governmentwide efforts. NIPC has also provided valuable support and coordination related to investigating and otherwise responding to attacks on computers. However, the analytical and information-sharing capabilities that are needed to protect the nation's critical infrastructures have not yet been achieved, and NIPC has developed only limited warning capabilities. An underlying contributor to the slow progress is that the NIPC's roles and responsibilities have not been fully defined and are not consistently interpreted by other entities involved in the government's broader critical infrastructure protection strategy. This report summarized an April report …

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.

News release about DART and Trinity Railway Express transportation to events at the American Airlines Center.

A letter report issued by the General Accounting Office with an abstract that begins "Current plans for identifying spectrum to support third generation mobile wireless systems by July 30, 2001, and to auction licenses by September 30, 2002, are premature. GAO agrees with the Federal Communications Commission (FCC) and the Department of Commerce that delaying the identification of spectrum and the auction of licenses for third generation wireless systems could serve the public interest. Adequate information is not currently available to fully identify and address the uncertainties and risks of reallocation. The Department of Defense (DOD) and the federal government could make decisions affecting national security without knowing the full extent of risks they face or steps available to reduce those risks. Extending the current schedule for the identification and auction of licenses for this portion of the spectrum would allow DOD to complete technical and operational assessments and to consider the nation's future spectrum requirements. In addition, a delay would allow time to further consider the adequacy of existing national spectrum strategies affecting international agreements and for DOD overseas military operations to modify these strategies as necessary and to incorporate them into the nation's long-range spectrum plan."

This quarterly report documents significant achievements in the Enhanced Practical Photosynthetic CO{sub 2} Mitigation project during the period from 4/03/2001 through 7/02/2001. Most of the achievements are milestones in our efforts to complete the tasks and subtasks that constitute the project objectives. Note that this version of the quarterly technical report is a revision to add the reports from subcontractors Montana State and Oak Ridge National Laboratories The significant accomplishments for this quarter include: Development of an experimental plan and initiation of experiments to create a calibration curve that correlates algal chlorophyll levels with carbon levels (to simplify future experimental procedures); Completion of debugging of the slug flow reactor system, and development of a plan for testing the pressure drop of the slug flow reactor; Design and development of a new bioreactor screen design which integrates the nutrient delivery drip system and the harvesting system; Development of an experimental setup for testing the new integrated drip system/harvesting system; Completion of model-scale bioreactor tests examining the effects of CO{sub 2} concentration levels and lighting levels on Nostoc 86-3 growth rates; Completion of the construction of a larger model-scale bioreactor to improve and expand testing capabilities and initiation of tests; Substantial progress …

The U.S. tax code’s Foreign Sales Corporation (FSC) provisions provided a tax benefit for U.S. exporters. However, the European Union (EU) in 1997 charged that the provision was an export subsidy and thus contravened the World Trade Organization (WTO) agreements. A WTO ruling upheld the EU complaint, and to avoid WTO sanctioned retaliatory tariffs, U.S. legislation in November 2000 replaced FSC with the “extraterritorial income” (ETI) provisions, consisting of a redesigned export tax benefit of the same magnitude as FSC. The EU maintained that the new provisions are also not WTO-compliant and asked the WTO to rule on the matter.

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.

A new proton injection kicker system is required for the Tevatron in the Run II era. The new system was designed to supply 1.25 kG-m into a magnetic aperture of 48 mm vertical x 71 mm horizontal x 5 m long with a 396 ns bunch spacing. The system was designed to be upgraded to 132 ns bunch spacing with additional pulse supplies. The design of the magnet incorporated some novel features in order to meet these requirements. These include adjustable bus spacing to set the inductance and balanced positive and negative high voltage buses. This system has been installed in the Tevatron.

A new proton injection kicker system is required for the Tevatron in the Run II era. The new system was designed to supply 1.25 kG-m into a magnetic aperture of 48 mm vertical x 71 mm horizontal x 5 m long with a 396 ns bunch spacing. The system was designed to be upgraded to 132 ns bunch spacing with additional pulse supplies. The system design tradeoffs needed to meet these goals is discussed. These include the system topology, the system impedance and the number of magnets. This system has been installed in the Tevatron.

The Fermilab Electron Cooling project involves interacting a 4.3 MeV, 0.5 A DC electron beam with 8.9 GeV/c antiprotons in the FNAL Recycler Ring. This interaction occurs through a 20-meter long cooling section consisting of 10 solenoid modules. This cooling process would lead to an increase in the Tevatron collider luminosity needed to support RunIIb parameters. There are several important engineering aspects of this cooling section including: solenoid design, vacuum system design, magnetic shielding, support system, and alignment methods. Details of the engineering issues related to each of these areas is discussed.

The following work was performed: (1) Identified three test areas for Phase I, (2) Selected nine surface exploration methods for comparison, (3) contracted six geochemical companies for laboratory analysis and interpretation, (4) sub-contracted one surface geochemical method for field collection and analysis, (5) Acquired free data for one surface exploration method, (6) Collected samples from 27 sites in Area 7 and 210 sites in Area 6, and (7) Began the database creation, comparison, mapping, and interpretation of all data from the two sampled areas.

Congressional Research Service (CRS) report entailing information about Qualified Zone Academy Bonds vs. traditional tax-exempt bonds in regards to funding school renovations. The report goes over the side effects of the $1.6 billion Qualified Zone Academy Bond (QZAB), like revenue loss. Tables begin on page 4, and the report ends with a summary concluding that the QZAB program is more beneficial to tax payers and borrowers than traditional tax-exempt municipal bonds.

The Fermilab Electron Cooling Program requires a 20-m solenoidal region to interact 8-GeV antiprotons with an escorting beam of 4.3-MeV electrons to improve the phase-space quality of the antiproton beam. The solenoidal section with additional transport lines to take and return a 0.5-A electron beam from an electrostatic accelerator, for energy recovery, must be precisely aligned and adjusted. For the initial setup and study, and later testing of this line, a 12.4-keV H{sup {minus}} beam can be used to simulate the 4.3 MeV electron beam. For this purpose a high-brightness H{sup {minus}} ion source has been developed and tested. The source, a semiplanatron type, with a hollow cathode discharge and spherical cathode focusing of the emitted ions to the emission aperture has given an emission current density up to 0.7 A/cm{sup 2}. Continuous operation of 4 weeks has been demonstrated. Such an optimized source could have many applications for tandem accelerators, ion beam lithography and ion implantation.

Weekly newspaper from Cleveland, Texas that includes local, county, and state news along with extensive advertising.

A simple beam loading compensation system was installed for the Fermilab Main Injector Coalescing Cavities. This paper describes the design and implementation of the feedback system. These modifications improved the linear dynamic range of operation of the ferrite loaded cavity.