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Nuclear Fallout Decision Tool for First Responders (open access)

Nuclear Fallout Decision Tool for First Responders

None
Date: August 11, 2010
Creator: Archibald, E J & Buddemeier, B R
System: The UNT Digital Library
CRS Issue Statement on Animal Welfare (open access)

CRS Issue Statement on Animal Welfare

This report discusses the questions whether additional measures are needed to protect the health and well-being of animals.
Date: January 11, 2010
Creator: Becker, Geoffrey S.
System: The UNT Digital Library
Chile Earthquake: U.S. and International Response (open access)

Chile Earthquake: U.S. and International Response

This report discusses the Earthquake in Chile, the current condition, the response from Chilean government, international humanitarian response, as well as the U.S. humanitarian response. The report provides background information on Chile and U.S. relations and policy issues.
Date: March 11, 2010
Creator: Beittel, June S.
System: The UNT Digital Library
FY2010 Supplemental for Wars, Disaster Assistance, Haiti Relief, and Other Programs (open access)

FY2010 Supplemental for Wars, Disaster Assistance, Haiti Relief, and Other Programs

This report discusses the $64 billion in requested supplemental appropriations for FY2010, which includes $2.8 billion for Haiti earthquake-related reconstruction and foreign aid and $243 million for activities related to the Deepwater Horizon oil spill and more.
Date: June 11, 2010
Creator: Belasco, Amy; Else, Daniel H.; Lindsay, Bruce R.; Margesson, Rhoda; Nakamura, Kennon H. & Taft-Morales, Maureen
System: The UNT Digital Library
Intelligence Issues for Congress (open access)

Intelligence Issues for Congress

This report discusses the efforts currently underway to improve coordination and encourage better analysis amongst the various agencies within the U.S. Intelligence Community, especially with regard to the ongoing and prominent issue of international terrorism. In particular, this report addresses the false intelligence regarding Iraqi weapons of mass destruction and the current efforts in Iraq and Iran in general.
Date: June 11, 2010
Creator: Best, Richard A., Jr.
System: The UNT Digital Library
The Endangered Species Act (ESA) in the 111th Congress: Conflicting Values and Difficult Choices (open access)

The Endangered Species Act (ESA) in the 111th Congress: Conflicting Values and Difficult Choices

None
Date: June 11, 2010
Creator: Buck, Eugene H.; Corn, M. Lynne; Sheikh, Pervaze A.; Meltz, Robert & Alexander, Kristina
System: The UNT Digital Library
Detection, Classification and Estimation of Radioactive Contraband from Uncertain Low-Count Measurements (open access)

Detection, Classification and Estimation of Radioactive Contraband from Uncertain Low-Count Measurements

None
Date: March 11, 2010
Creator: Candy, J V
System: The UNT Digital Library
YALINA-booster Subcritical Assembly Pulsed-Neutron E Xperiments: Detector Dead Time and Apatial Corrections. (open access)

YALINA-booster Subcritical Assembly Pulsed-Neutron E Xperiments: Detector Dead Time and Apatial Corrections.

In almost every detector counting system, a minimal dead time is required to record two successive events as two separated pulses. Due to the random nature of neutron interactions in the subcritical assembly, there is always some probability that a true neutron event will not be recorded because it occurs too close to the preceding event. These losses may become rather severe for counting systems with high counting rates, and should be corrected before any utilization of the experimental data. This report examines the dead time effects for the pulsed neutron experiments of the YALINA-Booster subcritical assembly. The nonparalyzable model is utilized to correct the experimental data due to dead time. Overall, the reactivity values are increased by 0.19$ and 0.32$ after the spatial corrections for the YALINA-Booster 36% and 21% configurations respectively. The differences of the reactivities obtained with He-3 long or short detectors at the same detector channel diminish after the dead time corrections of the experimental data for the 36% YALINA-Booster configuration. In addition, better agreements between reactivities obtained from different experimental data sets are also observed after the dead time corrections for the 21% YALINA-Booster configuration.
Date: October 11, 2010
Creator: Cao, Y.; Gohar, Y. & Division, Nuclear Engineering
System: The UNT Digital Library
YALINA-booster Subcritical Assembly Pulsed-Neutron Experiments : Data Processing and Spatial Corrections. (open access)

YALINA-booster Subcritical Assembly Pulsed-Neutron Experiments : Data Processing and Spatial Corrections.

The YALINA-Booster experiments and analyses are part of the collaboration between Argonne National Laboratory of USA and the Joint Institute for Power & Nuclear Research - SOSNY of Belarus for studying the physics of accelerator driven systems for nuclear energy applications using low enriched uranium. The YALINA-Booster subcritical assembly is utilized for studying the kinetics of accelerator driven systems with its highly intensive D-T or D-D pulsed neutron source. In particular, the pulsed neutron methods are used to determine the reactivity of the subcritical system. This report examines the pulsed-neutron experiments performed in the YALINA-Booster facility with different configurations for the subcritical assembly. The 1141 configuration with 90% U-235 fuel and the 1185 configuration with 36% or 21% U-235 fuel are examined. The Sjoestrand area-ratio method is utilized to determine the reactivities of the different configurations. The linear regression method is applied to obtain the prompt neutron decay constants from the pulsed-neutron experimental data. The reactivity values obtained from the experimental data are shown to be dependent on the detector locations inside the subcritical assembly and the types of detector used for the measurements. In this report, Bell's spatial correction factors are calculated based on a Monte Carlo model to …
Date: October 11, 2010
Creator: Cao, Y.; Gohar, Y. & Division, Nuclear Engineering
System: The UNT Digital Library
Automatic Cost of Living Adjustments: Some Economic and Practical Considerations (open access)

Automatic Cost of Living Adjustments: Some Economic and Practical Considerations

This report looks at how automatic cost-of-living adjustments (COLAs) influence the budget and identifies major programs that have indexing provisions. It also explains what price indexes attempt to measure and discusses some of their weaknesses. Finally, it points out some practical things to keep in mind when establishing an indexing provision.
Date: January 11, 2010
Creator: Cashell, Brian W.
System: The UNT Digital Library
Japan-U.S. Relations: Issues for Congress (open access)

Japan-U.S. Relations: Issues for Congress

This report discusses the relationship between the United States and Japan, including Japanese efforts to support the U.S. in the wake of the September 11th, 2001 terrorist attacks and the two countries' economic ties, especially with regards to the recent economic downturn. This report also discusses the general political atmosphere of Japan, including the recent and ongoing political turmoil in Tokyo.
Date: June 11, 2010
Creator: Chanlett-Avery, Emma; Cooper, William H. & Manyin, Mark E.
System: The UNT Digital Library
Afghanistan Casualties: Military Forces and Civilians (open access)

Afghanistan Casualties: Military Forces and Civilians

This report collects statistics from a variety of sources on casualties sustained during Operation Enduring Freedom (OEF), which began on October 7, 2001. OEF actions took place primarily in Afghanistan; however, OEF casualties also include American casualties in Pakistan, Uzbekistan, Guantanamo Bay (Cuba), Djibouti, Eritrea, Ethiopia, Jordan, Kenya, Kyrgyzstan, the Philippines, Seychelles, Sudan, Tajikistan, Turkey, and Yemen.
Date: August 11, 2010
Creator: Chesser, Susan G.
System: The UNT Digital Library
The Uniformed and Overseas Citizens Absentee Voting Act: Overview and Issues (open access)

The Uniformed and Overseas Citizens Absentee Voting Act: Overview and Issues

This report discusses the Uniformed and Overseas Citizens Absentee Voting Act (UOCAVA), under which members of the uniformed services and U.S. citizens who live abroad are eligible to register and vote absentee in federal elections. The report discusses recent improvements to UOCAVA, necessary as the result of controversy surrounding ballots received in Florida from absentee voters in the 2000 presidential election. The report also discusses related legislation, such as the National Defense Authorization Act for FY2010, which provided for a major overhaul of UOCAVA.
Date: August 11, 2010
Creator: Coleman, Kevin J.
System: The UNT Digital Library
U.S.-Japan Economic Relations: Significance, Prospects, and Policy Options (open access)

U.S.-Japan Economic Relations: Significance, Prospects, and Policy Options

his report explores the significance and state of U.S.-Japan economic ties; how the ties have changed over time; and what the possible options for managing the relationship might be.
Date: March 11, 2010
Creator: Cooper, William H.
System: The UNT Digital Library
Water Infrastructure Funding in the American Recovery and Reinvestment Act of 2009 (open access)

Water Infrastructure Funding in the American Recovery and Reinvestment Act of 2009

This report identifies funding for water infrastructure programs and projects included in American Recovery and Reinvestment Act of 2009 (P.L. 111-5). The legislation directs additional appropriations to a number of existing federal programs that either directly invest in water infrastructure projects or provide assistance to states and localities for such activities.
Date: January 11, 2010
Creator: Copeland, Claudia; Carter, Nicole T.; Cody, Betsy A. & Stubbs, Megan
System: The UNT Digital Library
ENDF Cross Sections are not Uniquely Defined (open access)

ENDF Cross Sections are not Uniquely Defined

None
Date: June 11, 2010
Creator: Cullen, D E
System: The UNT Digital Library
A Simple Apparatus for the Injection of Lithium Aerosol into the Scrape-Off Layer of Fusion Research Devices (open access)

A Simple Apparatus for the Injection of Lithium Aerosol into the Scrape-Off Layer of Fusion Research Devices

A simple device has been developed to deposit elemental lithium onto plasma facing components in the National Spherical Torus Experiment. Deposition is accomplished by dropping lithium powder into the plasma column. Once introduced, lithium particles quickly become entrained in scrape-off layer flow as an evaporating aerosol. Particles are delivered through a small central aperture in a computer-controlled resonating piezoelectric disk on which the powder is supported. The device has been used to deposit lithium both during discharges as well as prior to plasma breakdown. Clear improvements to plasma performance have been demonstrated. The use of this apparatus provides flexibility in the amount and timing of lithium deposition and, therefore, may benefit future fusion research devices.
Date: October 11, 2010
Creator: D. K. Mansfield, A.L Roquemore, H. Schneider, J. Timberlake, H. Kugel, M.G. Bell and the NSTX Research Team
System: The UNT Digital Library
The Influence of Cloud Microphysics and Radiation on the Response of Water Vapor and Clouds to Climate Change (open access)

The Influence of Cloud Microphysics and Radiation on the Response of Water Vapor and Clouds to Climate Change

Uncertainties in representing the atmospheric water cycle are major obstacles to the accurate prediction of future climate. This project focused on addressing some of these uncertainties by implementing new physics for convection and radiation into the NCAR Community Atmosphere Model (CAM). To better understand and eventually better represent these processes in this major national climate model, we modified CAM3.5 to use the convection and cloud schemes developed by the Massachusetts Institute of Technology (MIT) and the RRTMG rapid radiation code for global climate models developed by Atmospheric and Environmental Research, Inc. (AER). The impact of the new physics on the CAM3.5 simulation of convection on diurnal and intra-seasonal scales, on intra-seasonal oscillations and on the distribution of water vapor has been investigated. In addition, the MIT and AER physics packages have been incorporated and tested in combination within the Weather Research and Forecasting (WRF) regional forecast model for the purpose of evaluating and improving convective and radiative processes on time scales appropriate to weather simulations. It has been found that the application of the AER radiation and MIT convection produces significant improvements in the modeled diurnal cycle of convection, especially over land, in the NCAR climate model. However, both the …
Date: November 11, 2010
Creator: Emanuel, Kerry & Iacono, Michael J.
System: The UNT Digital Library
100-N Area Strontium-90 Treatability Demonstration Project: Phytoextraction Along the 100-N Columbia River Riparian Zone – Field Treatability Study (open access)

100-N Area Strontium-90 Treatability Demonstration Project: Phytoextraction Along the 100-N Columbia River Riparian Zone – Field Treatability Study

Strontium-90 (90Sr) is present both in the aquifer near the river and in the vadose and riparian zones of the river’s shore at 100-NR-2. Phytoextraction of 90Sr is being considered as a potential remediation system along the riparian zone of the Columbia River. Phytoextraction would employ coyote willow (Salix exigua). Past studies have shown that willow roots share uptake mechanisms for Sr with Ca, a plant macronutrient as well as no discrimination between Sr and 90Sr. Willow 90Sr concentration ratios [CR’s; (pCi 90Sr/g dry wt. of new growth tissue)/(pCi 90Sr/g soil porewater)] were consistently greater than 65 with three-quarters of the assimilated label partitioned into the above ground shoot. Insect herbivore experiments also demonstrated no significant potential for bioaccumulation or food chain transfer from their natural activities. The objectives of this field study were three-fold: (1) to demonstrate that a viable, “managed” plot of coyote willows can be established on the shoreline of the Columbia River that would survive the same microenvironment to be encountered at the 100-NR-2 shoreline; (2) to show through engineered barriers that large and small animal herbivores can be prevented from feeding on these plants; and (3) to show that once established, the plants will provide …
Date: January 11, 2010
Creator: Fellows, Robert J.; Fruchter, Jonathan S.; Driver, Crystal J. & Ainsworth, Calvin C.
System: The UNT Digital Library
Iraq Casualties: U.S. Military Forces and Iraqi Civilians, Police, and Security Forces (open access)

Iraq Casualties: U.S. Military Forces and Iraqi Civilians, Police, and Security Forces

This report presents U.S. military casualties as well as governmental and nongovernmental estimates of Iraqi civilian, police, and security forces casualties.
Date: June 11, 2010
Creator: Fischer, Hannah
System: The UNT Digital Library
THE HYDROTHERMAL REACTIONS OF MONOSODIUM TITANATE, CRYSTALLINE SILICOTITANATE AND SLUDGE IN THE MODULAR SALT PROCESS: A LITERATURE SURVEY (open access)

THE HYDROTHERMAL REACTIONS OF MONOSODIUM TITANATE, CRYSTALLINE SILICOTITANATE AND SLUDGE IN THE MODULAR SALT PROCESS: A LITERATURE SURVEY

The use of crystalline silicotitanate (CST) is proposed for an at-tank process to treat High Level Waste at the Savannah River Site. The proposed configuration includes deployment of ion exchange columns suspended in the risers of existing tanks to process salt waste without building a new facility. The CST is available in an engineered form, designated as IE-911-CW, from UOP. Prior data indicates CST has a proclivity to agglomerate from deposits of silica rich compounds present in the alkaline waste solutions. This report documents the prior literature and provides guidance for the design and operations that include CST to mitigate that risk. The proposed operation will also add monosodium titanate (MST) to the supernate of the tank prior to the ion exchange operation to remove strontium and select alpha-emitting actinides. The cesium loaded CST is ground and then passed forward to the sludge washing tank as feed to the Defense Waste Processing Facility (DWPF). Similarly, the MST will be transferred to the sludge washing tank. Sludge processing includes the potential to leach aluminum from the solids at elevated temperature (e.g., 65 C) using concentrated (3M) sodium hydroxide solutions. Prior literature indicates that both CST and MST will agglomerate and form …
Date: November 11, 2010
Creator: Fondeur, F.; Pennebaker, F. & Fink, S.
System: The UNT Digital Library
Ecloud Build-Up Simulations for the FNAL MI for a Mixed Fill Pattern: Dependence on Peak SEY and Pulse Intensity During the Ramp (open access)

Ecloud Build-Up Simulations for the FNAL MI for a Mixed Fill Pattern: Dependence on Peak SEY and Pulse Intensity During the Ramp

We present simulation results of the build-up of the electron-cloud density n{sub e} in three regions of the FNAL Main Injector (MI) for a beam fill pattern made up of 5 double booster batches followed by a 6th single batch. We vary the pulse intensity in the range N{sub t} = (2-5) x 10{sup 13}, and the beam kinetic energy in the range E{sub k} = 8-120 GeV. We assume a secondary electron emission model qualitatively corresponding to TiN, except that we let the peak value of the secondary electron yield (SEY) {delta}{sub max} vary as a free parameter in a fairly broad range. Our main conclusions are: (1) At fixed N{sub t} there is a clear threshold behavior of n{sub e} as a function of {delta}{sub max} in the range {approx} 1.1-1.3. (2) At fixed {delta}{sub max}, there is a threshold behavior of n{sub e} as a function of N{sub t} provided {delta}{sub max} is sufficiently high; the threshold value of N{sub t} is a function of the characteristics of the region being simulated. (3) The dependence on E{sub k} is weak except possibly at transition energy. Most of these results were informally presented to the relevant MI personnel …
Date: December 11, 2010
Creator: Furman, M. A.
System: The UNT Digital Library
RESULTS OF THE EXAMINATION OF ELECTROCHEMICAL NOISE PROBE SPECIMENS REMOVED FROM TANK 241-AN-107 JUNE 2010 (open access)

RESULTS OF THE EXAMINATION OF ELECTROCHEMICAL NOISE PROBE SPECIMENS REMOVED FROM TANK 241-AN-107 JUNE 2010

An Integrated Multi-function Corrosion Probe (IMCP) was installed in Tank 241-AN-107 on September 20, 2006. A portion of the probe was retrieved on June 8, 2010 and the sections holding the detectors were delivered to the 222-S Laboratory for analysis. The examination and disassembly of the probe sections encountered a number of challenges. However, disassembly and relevant analyses were successfully completed. The following summarizes our observations. Brittle failure of the fiberglass probe in the middle of detector 2 resulted in the recovery of only three vapor space C-rings and six supernatant bullet specimens. The design of the bullets and how they were attached to the probe made the recovery of the components more difficult. The use of glue/epoxy on the bullets and the attachment of the flat bottom of the bullets to the curved surface of the fiberglass probe body meant that weight loss on cleaning and surface area of the specimens could not be determined with acceptable accuracy. Macrophotography of all specimens reveals that corrosion was slight in the vapor space and extremely slight in the supernatant. The one pre-cracked C-ring recovered from the vapor space still had the stress bulge visible on the polished surface, indicating that crack …
Date: November 11, 2010
Creator: GA, COOKE; RB, WYRWAS & JB, DUNCAN
System: The UNT Digital Library
INTERPRETATION OF AIRBORNE ELECTROMAGNETIC AND MAGNETIC DATA IN THE 600 AREA (open access)

INTERPRETATION OF AIRBORNE ELECTROMAGNETIC AND MAGNETIC DATA IN THE 600 AREA

As part of the 200-PO-1 Phase I geophysical surveys, Fugro Airborne Surveys was contracted to collect airborne electromagnetic (EM) and magnetic surveys of the Hanford Site 600 Area. Two helicopter survey systems were used with the HeliGEOTEM{reg_sign} time domain portion flown between June 19th and June 20th, 2008, and the RESOLVE{reg_sign} frequency domain portion was flown from June 29th to July 1st, 2008. Magnetic data were acquired contemporaneously with the electromagnetic surveys using a total-field cesium vapor magnetometer. Approximately 925 line kilometers (km) were flown using the HeliGEOTEM{reg_sign} II system and 412 line kilometers were flown using the RESOLVE{reg_sign} system. The HeliGEOTEM system has an effective penetration of roughly 250 meters into the ground and the RESOLVE system has an effective penetration of roughly 60 meters. Acquisition parameters and preliminary results are provided in SGW-39674, Airborne Electromagnetic Survey Report, 200-PO-1 Groundwater Operable Unit, 600 Area, Hanford Site. Airborne data are interpreted in this report in an attempt to identify areas of likely preferential groundwater flow within the aquifer system based on the presence of paleochannels or fault zones. The premise for the interpretation is that coarser-grained intervals have filled in scour channels created by episodic catastrophic flood events during the …
Date: November 11, 2010
Creator: GD, CUMMINS
System: The UNT Digital Library