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20th International Training Course (ITC-20) on the physical protection of nuclear facilities and materials evaluation report. (open access)

20th International Training Course (ITC-20) on the physical protection of nuclear facilities and materials evaluation report.

The goal of this evaluation report is to provide the information necessary to improve the effectiveness of the ITC provided to the International Atomic Energy Agency Member States. This report examines ITC-20 training content, delivery methods, scheduling, and logistics. Ultimately, this report evaluates whether the course provides the knowledge and skills necessary to meet the participants needs in the protection of nuclear materials and facilities.
Date: September 1, 2008
Creator: Ramirez, Amanda Ann
System: The UNT Digital Library
ACRF Instrumentation Status: New, Current, and Future - August 2008 (open access)

ACRF Instrumentation Status: New, Current, and Future - August 2008

The purpose of this report is to provide a concise but comprehensive overview of Atmospheric Radiation Measurement Climate Research Facility instrumentation status. The report is divided into the following five sections: (1) new instrumentation in the process of being acquired and deployed, (2) field campaigns, (3) existing instrumentation and progress on improvements or upgrades, (4) proposed future instrumentation, and (5) Small Business Innovation Research instrument development.
Date: September 1, 2008
Creator: Voyles, J. W.
System: The UNT Digital Library
Activities and Accomplishments in Model Year 2007 (open access)

Activities and Accomplishments in Model Year 2007

Document summarizes the compliance activity of EPAct-covered state and alternative fuel provider fleets.
Date: September 1, 2008
Creator: unknown
System: The UNT Digital Library
Addendum to the Streamlined Approach for Environmental Restoration Plan for Corrective Action Unit 134: Aboveground Storage Tanks, Nevada Test Site, Nevada (open access)

Addendum to the Streamlined Approach for Environmental Restoration Plan for Corrective Action Unit 134: Aboveground Storage Tanks, Nevada Test Site, Nevada

The following is an addendum to the Streamlined Approach for Environmental Restoration Plan for Corrective Action Unit 134: Aboveground Storage Tanks, Nevada Test Site, Nevada, DOE/NV--1275, dated May 2008. This addendum expands upon information provided in the May 2008 plan. It provides specific details regarding samples to be collected at Corrective Action Sites 15-01-05 and 29-01-01. It also provides discussion and rationale for establishing the spatial boundaries of Corrective Action Sites.
Date: September 1, 2008
Creator: National Security Technologies, LLC
System: The UNT Digital Library
Advanced Detector Research - Fabrication and Testing of 3D Active-Edge Silicon Sensors: High Speed, High Yield (open access)

Advanced Detector Research - Fabrication and Testing of 3D Active-Edge Silicon Sensors: High Speed, High Yield

Development of 3D silicon radiation sensors employing electrodes fabricated perpendicular to the sensor surfaces to improve fabrication yields and increasing pulse speeds.
Date: September 1, 2008
Creator: Parker, Sherwood I
System: The UNT Digital Library
Agile machining and inspection thrust area team-on-machine probing / compatibility assessment of Parametric Technology Corporation (PTC) pro/CMM DMIS with Zeiss DMISEngine. (open access)

Agile machining and inspection thrust area team-on-machine probing / compatibility assessment of Parametric Technology Corporation (PTC) pro/CMM DMIS with Zeiss DMISEngine.

The charter goal of the Agile Machining and Inspection Thrust Area Team is to identify technical requirements, within the nuclear weapons complex (NWC), for Agile Machining and Inspection capabilities. During FY 2008, the team identified Parametric Technology Corporation (PTC) Pro/CMM as a software tool for use in off-line programming of probing routines--used for measurement--for machining and turning centers. The probing routine would be used for in-process verification of part geometry. The same Pro/CMM program used on the machine tool could also be employed for program validation / part verification using a coordinate measuring machine (CMM). Funding was provided to determine the compatibility of the Pro/CMM probing program with CMM software (Zeiss DMISEngine).
Date: September 1, 2008
Creator: Wade, James Rokwel; Tomlinson, Kurt & Bryce, Edwin Anthony
System: The UNT Digital Library
An Algebraic Approach to the Evolution of Emittances upon Crossing the Linear Coupling Difference Resonance (open access)

An Algebraic Approach to the Evolution of Emittances upon Crossing the Linear Coupling Difference Resonance

One of the hallmarks of linear coupling is the resonant exchange of oscillation amplitude between the horizontal and vertical planes when the difference between the unperturbed tunes is close to an integer. The standard derivation of this phenomenon (known as the difference resonance) can be found, for example, in the classic papers of Guignard [1, 2]. One starts with an uncoupled lattice and adds a linear perturbation that couples the two planes. The equations of motion are expressed in hamiltonian form. As the difference between the unperturbed tunes approaches an integer, one finds that the perturbing terms in the hamiltonian can be divided into terms that oscillate slowly and ones that oscillate rapidly. The rapidly oscillating terms are discarded or transformed to higher order with an appropriate canonical transformation. The resulting approximate hamiltonian gives equations of motion that clearly exhibit the exchange of oscillation amplitude between the two planes. If, instead of the hamiltonian, one is given the four-by-four matrix for one turn around a synchrotron, then one has the complete solution for the turn-by-turn (TBT) motion. However, the conditions for the phenomenon of amplitude exchange are not obvious from a casual inspection of the matrix. These conditions and those …
Date: September 1, 2008
Creator: Gardner,C.
System: The UNT Digital Library
An Algebraic Approach to the Evolution of Emittances upon Crossing the Linear Coupling Difference Resonance (open access)

An Algebraic Approach to the Evolution of Emittances upon Crossing the Linear Coupling Difference Resonance

N/A
Date: September 1, 2008
Creator: Gardner, C. J.
System: The UNT Digital Library
Analyses of the Effects of Global Change on Human Health and Welfare and Human Systems (open access)

Analyses of the Effects of Global Change on Human Health and Welfare and Human Systems

This report focuses on the impacts of global climate change, especially impacts on three bread dimensions of the human condition: human health, human settlements, and human welfare.
Date: September 2008
Creator: Climate Change Science Program (U.S.)
System: The UNT Digital Library
Analysis of HFIR Dosimetry Experiments Performed in Cycles 400 and 401 (open access)

Analysis of HFIR Dosimetry Experiments Performed in Cycles 400 and 401

The High Flux Isotope Reactor (HFIR) has been in operation at Oak Ridge National Laboratory since 1966. To upgrade and enhance capabilities for neutron science research at the reactor, a larger HB-2 beam tube was installed in April of 2002. To assess, experimentally, the impact of this larger beam tube on radiation damage rates [i.e., displacement-per-atom (dpa) rates] used in vessel life extension studies, dosimetry experiments were performed from April to August 2004 during fuel cycles 400 and 401. This report documents the analysis of the dosimetry experiments and the determination of best-estimate dpa rates. These dpa rates are obtained by performing a least-squares adjustment of calculated neutron and gamma-ray fluxes and the measured responses of radiometric monitors and beryllium helium accumulation fluence monitors. The best-estimate dpa rates provided here will be used to update HFIR pressure vessel life extension studies, which determine the pressure/temperature limits for reactor operation and the HFIR pressure vessel's remaining life. All irradiation parameters given in this report correspond to a reactor power of 85 MW.
Date: September 1, 2008
Creator: Remec, Igor & Baldwin, Charles A.
System: The UNT Digital Library
An analysis of the pull strength behaviors of fine-pitch, flip chip solder interconnections using a Au-Pt-Pd thick film conductor on Low-Temperature, Co-fired Ceramic (LTCC) substrates. (open access)

An analysis of the pull strength behaviors of fine-pitch, flip chip solder interconnections using a Au-Pt-Pd thick film conductor on Low-Temperature, Co-fired Ceramic (LTCC) substrates.

The assembly of the BDYE detector requires the attachment of sixteen silicon (Si) processor dice (eight on the top side; eight on the bottom side) onto a low-temperature, co-fired ceramic (LTCC) substrate using 63Sn-37Pb (wt.%, Sn-Pb) in a double-reflow soldering process (nitrogen). There are 132 solder joints per die. The bond pads were gold-platinum-palladium (71Au-26Pt-3Pd, wt.%) thick film layers fired onto the LTCC in a post-process sequence. The pull strength and failure modes provided the quality metrics for the Sn-Pb solder joints. Pull strengths were measured in both the as-fabricated condition and after exposure to thermal cycling (-55/125 C; 15 min hold times; 20 cycles). Extremely low pull strengths--referred to as the low pull strength phenomenon--were observed intermittently throughout the product build, resulting in added program costs, schedule delays, and a long-term reliability concern for the detector. There was no statistically significant correlation between the low pull strength phenomenon and (1) the LTCC 'sub-floor' lot; (2) grit blasting the LTCC surfaces prior to the post-process steps; (3) the post-process parameters; (4) the conductor pad height (thickness); (5) the dice soldering assembly sequence; or (5) the dice pull test sequence. Formation of an intermetallic compound (IMC)/LTCC interface caused by thick film …
Date: September 1, 2008
Creator: Uribe, Fernando R.; Kilgo, Alice C.; Grazier, John Mark; Vianco, Paul Thomas; Zender, Gary L.; Hlava, Paul Frank et al.
System: The UNT Digital Library
ASSESSMENT OF VARIOUS TYPES OF UNCERTAINTY IN THE TECHA RIVER DOSIMETRY SYSTEM (open access)

ASSESSMENT OF VARIOUS TYPES OF UNCERTAINTY IN THE TECHA RIVER DOSIMETRY SYSTEM

Recent developments in evaluation of dose-response models in light of uncertain dose data (Stram and Kopecky 2003; Schafer and Gilbert 2006) have highlighted the importance of different types of uncertainties in the development of individual dose estimates. These include uncertain parameters that may be either shared or unshared within the dosimetric cohort, and also the nature of the type of uncertainty as either classical or Berkson. This report is an initial attempt to identify the nature of the various input parameters and calculational methods incorporated in the Techa River Dosimetry System (based on the TRDS-2000 implementation as a starting point, with additions for recently-developed capabilities). This report reviews the database, equations, and input parameters, and then identifies the author's interpretations of their general nature. It closes with some questions for the users of the data (epidemiologists and biostatisticians), so that the next implantation of the TRDS will provide the most useful information.
Date: September 1, 2008
Creator: Napier, Bruce A.; Degteva, M. O. & Anspaugh, L. R.
System: The UNT Digital Library
An Audit Report on Energy Savings Performance Contracts at Selected Agencies and Institutions of Higher Education (open access)

An Audit Report on Energy Savings Performance Contracts at Selected Agencies and Institutions of Higher Education

Report of the Texas State Auditor's Office related to energy savings performance contracts at selected Texas state agencies and institutions of higher education, and to reviewing methods of reducing energy consumption, monitoring the amount of dollars saved, and determining the accuracy and completeness of information submitted by participating agencies.
Date: September 2008
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
An Audit Report on Student Fees at Selected Higher Education Institutions (open access)

An Audit Report on Student Fees at Selected Higher Education Institutions

Report of the Texas State Auditor's Office related to determining whether selected higher education institutions' budgeting for and distribution and expenditure of selected student fees are in compliance with applicable laws, policies, and procedures to ensure that fees are assessed on a cost-recovery basis, and whether selected higher education institutions that have any fee accounts with unexpended balances at year-end have prepared justifications for maintaining the balances in accordance with the cost-recovery nature of fees.
Date: September 2008
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
An Audit Report on the Department of Criminal Justice's Complaint Resolution and Investigation Functions (open access)

An Audit Report on the Department of Criminal Justice's Complaint Resolution and Investigation Functions

Report of the Texas State Auditor's Office related to determining whether the Department of Criminal Justice (Department) is complying with policies and procedures and best practices governing the screening, investigation, and resolution of allegations of criminal behavior, serious policy violations, and serious offender and employee grievances.
Date: September 2008
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
An Audit Report on the Office of Consumer Credit Commissioner (open access)

An Audit Report on the Office of Consumer Credit Commissioner

Report of the Texas State Auditor's Office related to determining whether the Office of Consumer Credit Commissioner's (Office) examination process provides reasonable assurance that licensed and registered lenders comply with state and federal statutes and rules when providing loans and services to Texans; determining whether the Office addresses complaints in accordance with its policy and best practices, including reclassifying complaints as investigations when appropriate; and monitoring the Office's progress in regulating motor vehicle sales finance dealers.
Date: September 2008
Creator: Texas. Office of the State Auditor.
System: The Portal to Texas History
Capturing the uncertainty in adversary attack simulations. (open access)

Capturing the uncertainty in adversary attack simulations.

This work provides a comprehensive uncertainty technique to evaluate uncertainty, resulting in a more realistic evaluation of PI, thereby requiring fewer resources to address scenarios and allowing resources to be used across more scenarios. For a given set of dversary resources, two types of uncertainty are associated with PI for a scenario: (1) aleatory (random) uncertainty for detection probabilities and time delays and (2) epistemic (state of knowledge) uncertainty for the adversary resources applied during an attack. Adversary esources consist of attributes (such as equipment and training) and knowledge about the security system; to date, most evaluations have assumed an adversary with very high resources, adding to the conservatism in the evaluation of PI. The aleatory uncertainty in PI is ddressed by assigning probability distributions to detection probabilities and time delays. A numerical sampling technique is used to evaluate PI, addressing the repeated variable dependence in the equation for PI.
Date: September 1, 2008
Creator: Darby, John L.; Brooks, Traci N. & Berry, Robert Bruce
System: The UNT Digital Library
Cathode Ion Bombardment in RF Photoguns (open access)

Cathode Ion Bombardment in RF Photoguns

In this paper, we use the method of rapid oscillating field to solve the equation of ion motion in an RF gun. We apply the method to the BNL 1/2-cell SRF photogun and demonstrate that a significant portion of ions produced in the gun can reach the cathode if no special precautions are taken. Also, the paper proposes a simple mitigation recipe that can reduce the rate of ion bombardment.
Date: September 1, 2008
Creator: Pozdeyev, E.; Kayran, D. & Litvinenko, V.
System: The UNT Digital Library
Cathode Ion Bombardment in RF Photoguns (open access)

Cathode Ion Bombardment in RF Photoguns

N/A
Date: September 1, 2008
Creator: E., Pozdeyev; Kayran, D. & Litvinenko, V.
System: The UNT Digital Library
Clean Cities Annual Metrics Report 2007 (open access)

Clean Cities Annual Metrics Report 2007

Document summarizes 2007 activity and accomplishments reported by Clean Cities coordinators.
Date: September 1, 2008
Creator: Johnson, C. & Bergeron, P.
System: The UNT Digital Library
Climate-derived tensions in Arctic security. (open access)

Climate-derived tensions in Arctic security.

Globally, there is no lack of security threats. Many of them demand priority engagement and there can never be adequate resources to address all threats. In this context, climate is just another aspect of global security and the Arctic just another region. In light of physical and budgetary constraints, new security needs must be integrated and prioritized with existing ones. This discussion approaches the security impacts of climate from that perspective, starting with the broad security picture and establishing how climate may affect it. This method provides a different view from one that starts with climate and projects it, in isolation, as the source of a hypothetical security burden. That said, the Arctic does appear to present high-priority security challenges. Uncertainty in the timing of an ice-free Arctic affects how quickly it will become a security priority. Uncertainty in the emergent extreme and variable weather conditions will determine the difficulty (cost) of maintaining adequate security (order) in the area. The resolution of sovereignty boundaries affects the ability to enforce security measures, and the U.S. will most probably need a military presence to back-up negotiated sovereignty agreements. Without additional global warming, technology already allows the Arctic to become a strategic link …
Date: September 1, 2008
Creator: Backus, George A. & Strickland, James Hassler
System: The UNT Digital Library
Closure Plan for the Area 5 Radioactive Waste Management Site at the Nevada Test Site (open access)

Closure Plan for the Area 5 Radioactive Waste Management Site at the Nevada Test Site

The Area 5 Radioactive Waste Management Site (RMWS) at the Nevada Test Site (NTS) is managed and operated by National Security Technologies, LLC (NSTec), for the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office (NNSA/NSO). This document is the first update of the preliminary closure plan for the Area 5 RWMS at the NTS that was presented in the Integrated Closure and Monitoring Plan (DOE, 2005a). The major updates to the plan include a new closure schedule, updated closure inventory, updated site and facility characterization data, the Title II engineering cover design, and the closure process for the 92-Acre Area of the RWMS. The format and content of this site-specific plan follows the Format and Content Guide for U.S. Department of Energy Low-Level Waste Disposal Facility Closure Plans (DOE, 1999a). This interim closure plan meets closure and post-closure monitoring requirements of the order DOE O 435.1, manual DOE M 435.1-1, Title 40 Code of Federal Regulations (CFR) Part 191, 40 CFR 265, Nevada Administrative Code (NAC) 444.743, and Resource Conservation and Recovery Act (RCRA) requirements as incorporated into NAC 444.8632. The Area 5 RWMS accepts primarily packaged low-level waste (LLW), low-level mixed waste (LLMW), and asbestiform …
Date: September 1, 2008
Creator: National Security Technologies, LLC
System: The UNT Digital Library
Closure Report for Corrective Action Unit 121: Storage Tanks and Miscellaneous Sites, Nevada Test Site, Nevada (open access)

Closure Report for Corrective Action Unit 121: Storage Tanks and Miscellaneous Sites, Nevada Test Site, Nevada

Corrective Action Unit (CAU) 121 is identified in the Federal Facility Agreement and Consent Order (FFACO) (1996, as amended February 2008) as Storage Tanks and Miscellaneous Sites. CAU 121 consists of the following three Corrective Action Sites (CASs) located in Area 12 of the Nevada Test Site, which is approximately 65 miles northwest of Las Vegas, Nevada: (1) CAS 12-01-01, Aboveground Storage Tank; (2) CAS 12-01-02, Aboveground Storage Tank; and (3) CAS 12-22-26, Drums; 2 AST's. CAU 121 closure activities were conducted according to the FFACO and the Streamlined Approach for Environmental Restoration Plan for CAU 121 (U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office, 2007). Field work took place from February through September 2008. Samples were collected to determine the path forward to close each site. Closure activities were completed as defined in the plan based on sample analytical results and site conditions. No contaminants of concern (COCs) were present at CAS 12-01-01; therefore, no further action was chosen as the corrective action alternative. As a best management practice (BMP), the empty aboveground storage tank (AST) was removed and disposed as sanitary waste. At CAS 12-01-02, polychlorinated biphenyls (PCBs) were present above the preliminary action level …
Date: September 1, 2008
Creator: National Security Technologies, LLC
System: The UNT Digital Library
COMBINE7.0 - A Portable ENDF/B-VII.0 Based Neutron Spectrum and Cross-Section Generation Program (open access)

COMBINE7.0 - A Portable ENDF/B-VII.0 Based Neutron Spectrum and Cross-Section Generation Program

COMBINE7.0 is a FORTRAN 90 computer code that generates multigroup neutron constants for use in the deterministic diffusion and transport theory neutronics analysis. The cross-section database used by COMBINE7.0 is derived from the Evaluated Nuclear Data Files (ENDF/B-VII.0). The neutron energy range covered is from 20 MeV to 1.0E-5 eV. The Los Alamos National Laboratory NJOY code is used as the processing code to generate a 167 finegroup cross-section library in MATXS format for Bondarenko self-shielding treatment. Resolved resonance parameters are extracted from ENDF/B-VII.0 File 2 for a separate library to be used in an alternate Nordheim self-shielding treatment in the resolved resonance energy range. The equations solved for energy dependent neutron spectrum in the 167 fine-group structure are the B-3 or B-1 approximations to the transport equation. The fine group cross sections needed for the spectrum calculation are first prepared by Bondarenko selfshielding interpolation in terms of background cross section and temperature. The geometric lump effect, when present, is accounted for by augmenting the background cross section. Nordheim self-shielded fine group cross sections for a material having resolved resonance parameters overwrite correspondingly the existing self-shielded fine group cross sections when this option is used. The fine group cross sections …
Date: September 1, 2008
Creator: Yoon, Woo Y. & Nigg, David W.
System: The UNT Digital Library