Second Line of Defense, Megaports Initiative, Operational Testing and Evaluation Plan, Port of Lazaro Cardenas, Mexico (open access)

Second Line of Defense, Megaports Initiative, Operational Testing and Evaluation Plan, Port of Lazaro Cardenas, Mexico

The purpose of the Operational Testing and Evaluation (OT&E) phases of the project is to prepare for turnover of the Megaports System supplied by U.S. Department of Energy/National Nuclear Security Administration (DOE/NNSA)—located at the Export Lanes of the Port of Lazaro Cardenas, Mexico—to the Government of Mexico (GOM).
Date: May 30, 2012
Creator: Hughes, Jamie D.
Object Type: Report
System: The UNT Digital Library
Science and Technology Review, July/August 2012 (open access)

Science and Technology Review, July/August 2012

This month's issue has the following articles: (1) Energetic Materials Research Finds an Enduring Home and Mission - Commentary by Bruce T. Goodwin; (2) A Home for Energetic Materials and Their Experts - The Energetic Materials Center has become the National Nuclear Security Administration's go-to facility for high explosives formulation, testing, and expertise; (3) A Spectra-Tacular Sight - Scientists use spectrographic techniques and a high-powered telescope to study the atmospheric composition of exoplanets; (4) Seismic Data Pinpoint Fractures for Geothermal Energy - Livermore researchers are developing advanced microseismic analysis techniques to understand what happens beneath Earth's surface, where hot rock can provide an energy source; and (5) Employees Keep Up with the Times - The Laboratory's Education Assistance Program helps its workforce stay productive, skilled, and dynamic.
Date: May 30, 2012
Creator: Poyneer, L A
Object Type: Report
System: The UNT Digital Library
TESTING VAPOR SPACE AND LIQUID-AIR INTERFACE CORROSION IN SIMULATED ENVIRONMENTS OF HANFORD DOUBLE-SHELLED TANKS (open access)

TESTING VAPOR SPACE AND LIQUID-AIR INTERFACE CORROSION IN SIMULATED ENVIRONMENTS OF HANFORD DOUBLE-SHELLED TANKS

Electrochemical coupon testing were performed on 6 Hanford tank solution simulants and corresponding condensate simulants to evaluate the susceptibility of vapor space and liquid/air interface corrosion. Additionally, partial-immersion coupon testing were performed on the 6 tank solution simulants to compliment the accelerated electrochemical testing. Overall, the testing suggests that the SY-102 high nitrate solution is the most aggressive of the six solution simulants evaluated. Alternatively, the most passive solution, based on both electrochemical testing and coupon testing, was AY-102 solution. The presence of ammonium nitrate in the simulants at the lowest concentration tested (0.001 M) had no significant effect. At higher concentrations (0.5 M), ammonium nitrate appears to deter localized corrosion, suggesting a beneficial effect of the presence of the ammonium ion. The results of this research suggest that there is a threshold concentration of ammonium ions leading to inhibition of corrosion, thereby suggesting the need for further experimentation to identify the threshold.
Date: May 30, 2013
Creator: Hoffman, E.
Object Type: Report
System: The UNT Digital Library
Electron Beam Dump Particle Search (open access)

Electron Beam Dump Particle Search

The debate over the existence of a new particle postulated to explain the narrow positron spectra seen in heavy ion collisions has focused attention on a region of mass/lifetime where such a particle may exist and yet would not have been seen. To obtain the best possible sensitivity to elementary particles coupling to the electron in this unexplored region, we propose an electron beam dump experiment which will make parasitic use of the newly constructed wide band electron beam.
Date: May 30, 1986
Creator: Crisler, M.; Fenker, H.; Leedom, I.; Pordes, S. & /Fermilab
Object Type: Report
System: The UNT Digital Library
Search for a Heavy Neutral Particle Decaying Into an Electron and a Muon Using 1 Fb^-1 of ATLAS Data (open access)

Search for a Heavy Neutral Particle Decaying Into an Electron and a Muon Using 1 Fb^-1 of ATLAS Data

None
Date: May 30, 2013
Creator: Aad, Georges
Object Type: Article
System: The UNT Digital Library
Final Report---Next-Generation Solvers for Mixed-Integer Nonlinear Programs: Structure, Search, and Implementation (open access)

Final Report---Next-Generation Solvers for Mixed-Integer Nonlinear Programs: Structure, Search, and Implementation

The mathematical modeling of systems often requires the use of both nonlinear and discrete components. Problems involving both discrete and nonlinear components are known as mixed-integer nonlinear programs (MINLPs) and are among the most challenging computational optimization problems. This research project added to the understanding of this area by making a number of fundamental advances. First, the work demonstrated many novel, strong, tractable relaxations designed to deal with non-convexities arising in mathematical formulation. Second, the research implemented the ideas in software that is available to the public. Finally, the work demonstrated the importance of these ideas on practical applications and disseminated the work through scholarly journals, survey publications, and conference presentations.
Date: May 30, 2013
Creator: Linderoth, Jeff T. & Luedtke, James R.
Object Type: Report
System: The UNT Digital Library
A New Type of Bunch Compressor and Seeding of a Short-Wavelength Coherent Radiation. (open access)

A New Type of Bunch Compressor and Seeding of a Short-Wavelength Coherent Radiation.

Transverse-to-longitudinal emittance exchange was proposed in [1] as a tool for an effective matching of the electron beam phase space to requirements of a possible application. Here we propose a new purpose, namely, use of two consecutive emittance exchanges equipped with the telescope between them for a bunch compression that can be done without the energy chirp in the electron bunch. In principle it allows to reduce the electron peak current in the linac by moving the bunch compressor to the end of the linac and, thus, to relax collective effects associated with high peak currents. It is also possible to have a split-action compression when the first part is done inside the low-energy part of the linac and the second and final part is done after the linac. We also demonstrate how proposed bunch compressor can be used for frequency up-conversion of the energy modulation provided by the laser interacting with the electron beam and thus can prepare a significantly higher frequency seed for seeded free-electron lasers. The same approach can be used for a frequency down-conversion that can be useful for generation of THz radiation.
Date: May 30, 2011
Creator: Zholents, A. A. & Zolotorev, M. S.
Object Type: Report
System: The UNT Digital Library
DESTRUCTIVE EXAMINATION OF SHIPPING PACKAGE 9975-03431 (open access)

DESTRUCTIVE EXAMINATION OF SHIPPING PACKAGE 9975-03431

Destructive and non-destructive examinations have been performed on specified components of shipping package 9975-03431. For those attributes that were also measured during the field surveillance, no significant changes were observed. All observations and test results met identified criteria, or were collected for information and trending purposes. Except for modest corrosion of the lead shield (which is typical of these packages following several years service), no evidence of a degraded condition was found in this package. The Savannah River Site (SRS) stores packages containing plutonium (Pu) materials in the KArea Complex (KAC). The Pu materials are packaged per the DOE 3013 Standard and stored within Model 9975 shipping packages in KAC. The KAC facility DSA (Document Safety Analysis) credits the Model 9975 package to perform several safety functions, including criticality prevention, impact resistance, containment, and fire resistance to ensure the plutonium materials remain in a safe configuration during normal and accident conditions. The Model 9975 package is expected to perform its safety function for at least 12 years from initial packaging. The DSA recognizes the degradation potential for the materials of package construction over time in the KAC storage environment and requires an assessment of materials performance to validate the assumptions …
Date: May 30, 2012
Creator: Daugherty, W.
Object Type: Report
System: The UNT Digital Library
Report on Electrochemcial Corrosion Testing of 241-SY-102 Grab Samples from the 2012 Grab Sampling Campaign (open access)

Report on Electrochemcial Corrosion Testing of 241-SY-102 Grab Samples from the 2012 Grab Sampling Campaign

This report describes the results of the electrochemical testing performed on tank 241-SY-102 (SY-102) grab samples that were collected in support of corrosion mitigation. The objective of the work presented here was to determine corrosion resistance of tank SY-102 to the grab samples collected using electrochemical methods up to 50°C as well as to satisfy data quality objectives. Grab samples were collected at multiple elevations from Riser 003. The electrochemical corrosion testing was planned to consist of linear polarization resistance testing (LPR) and cyclic potentiodynamic polarization (CPP) testing at 50°C. The temperature would be lowered to 40 °C and the test repeated if the CPP curve indicated pitting corrosion at 50°C. Ifno pitting was indicated by the CPP curve, then a duplicate scan would be repeated at 50°C to confirm the first result. The testing would be complete if the duplicate CPP scan was consistent with the first. This report contains the CPP results of the testing of grab sample 2SY-12-03 and 2SY-12-03DUP composite sample tested under these conditions. There was no indication of pitting at 50°C, and the duplicate scan was in agreement with the first scan. Since no further testing was required, a third scan with a shorter …
Date: May 30, 2013
Creator: Wyrwas, Richard B. & Lamothe, Margaret E.
Object Type: Report
System: The UNT Digital Library
TWO-CHANNEL DIELECTRIC WAKE FIELD ACCELERATOR (open access)

TWO-CHANNEL DIELECTRIC WAKE FIELD ACCELERATOR

Experimental results are reported for test beam acceleration and deflection in a two-channel, cm-scale, rectangular dielectric-lined wakefield accelerator structure energized by a 14-MeV drive beam. The dominant waveguide mode of the structure is at {approx}30 GHz, and the structure is configured to exhibit a high transformer ratio ({approx}12:1). Accelerated bunches in the narrow secondary channel of the structure are continuously energized via Cherenkov radiation that is emitted by a drive bunch moving in the wider primary channel. Observed energy gains and losses, transverse deflections, and changes in the test bunch charge distribution compare favorably with predictions of theory.
Date: May 30, 2012
Creator: Hirshfield, Jay L.
Object Type: Report
System: The UNT Digital Library
TWRS privatization phase 1 electrical power system (open access)

TWRS privatization phase 1 electrical power system

This document includes Conceptual Design Report (CDR) for a new 11 km (7 miles) 230 kV transmission line and a new 40 MVA substation (A6) which will be located east of Grout Facility in 200E Area tank farm. This substation will provide electrical power up to 20 MW each for two private contractor facilities for immobilization and disposal of low activity waste (LAW).
Date: May 30, 1997
Creator: Singh, G.
Object Type: Report
System: The UNT Digital Library
Environmental test program for superconducting materials and devices: Preliminary results of testing program at Savannah River Site (open access)

Environmental test program for superconducting materials and devices: Preliminary results of testing program at Savannah River Site

The properties of YBa{sub 2}Cu{sub 3}O{sub 7-x} superconducting tapes designed and fabricated into SAFIRE-type, encapsulated, grounding links by the Ceramic Engineering Department at Clemson University are under investigation. Testing at the Savannah River Site will include gamma irradiation, vibration, and long-term evaluation. The gamma irradiation portion of testing has been completed. The long-term testing began in January and will continue. The vibration test has yet to be started.
Date: May 30, 1991
Creator: Randolph, H. & Verebelyi, D.
Object Type: Report
System: The UNT Digital Library
Subsurface marker emplacement test plan (open access)

Subsurface marker emplacement test plan

Current plans propose placing subsurface markers within protective barriers to deter potential human intrusion into disposed radioactive wastes. The subsurface markers would provide warning to the digging intruder should surface markers be removed, destroyed, or ignored. This plan sets forth procedures for testing the survivability of the subsurface markers during construction of the barrier. After the tests described herein are concluded, a decision can be made as to whether subsurface markers will require protection during barrier construction. If protection is required, additional tests will be needed to test the effectiveness of various protective approaches.
Date: May 30, 1986
Creator: Adams, M. R. & Carlson, R. A.
Object Type: Report
System: The UNT Digital Library
High frequency CARM driver for RF LINACS. Progess report, year 2 (open access)

High frequency CARM driver for RF LINACS. Progess report, year 2

Progress during the second year of this program has been noteworthy in both theoretical and experimental areas. Two experiments on a CARM oscillator were performed and analysed. The first long-pulse operation of a CARM oscillator was carried out, with output powers of approximately 100 kW and operating efficiencies of approximately 2%. Much has been learned from the analysis of the first two experiments, and both the amplifier and oscillator experiments planned for the next year will benefit substantially from the knowledge gained during these oscillator experiments. We have installed and tested an new electron gun made by Thompson Tubes Electroniques of France. This gun has now operated at up to 580 kV on our modulator; use of this gun for the upcoming CARM experiments should result in a significant increase in performance due to a much better beam quality and the capability of operation at a much higher voltage. In the theoretical area, Year II has seen substantial improvements to the MIT CARM codes. The amplifier and oscillator codes have been successfully benchmarked against other codes, linear theory, aid experimental work. This includes the development of multimode CARM amplifier linear and nonlinear theory, the theory of harmonic CARMs, and the …
Date: May 30, 1991
Creator: unknown
Object Type: Report
System: The UNT Digital Library
100 Area and 300 Area Component of the RCBRA Fall 2005 Data Compilation (open access)

100 Area and 300 Area Component of the RCBRA Fall 2005 Data Compilation

The purpose of this report is to provide a brief description of the sampling approaches, a description of the samples collected, and the results for the Fall 2005 sampling event. This report presents the methods and results of the work to support the 100 Area and 300 Area Component of the River Corridor Baseline Risk Assessment.
Date: May 30, 2006
Creator: Queen, J.M.
Object Type: Report
System: The UNT Digital Library
Progress towards Managing Residential Electricity Demand: Impacts of Standards and Labeling for Refrigerators and Air Conditioners in India (open access)

Progress towards Managing Residential Electricity Demand: Impacts of Standards and Labeling for Refrigerators and Air Conditioners in India

The development of Energy Efficiency Standards and Labeling (EES&L) began in earnest in India in 2001 with the Energy Conservation Act and the establishment of the Indian Bureau of Energy Efficiency (BEE). The first main residential appliance to be targeted was refrigerators, soon to be followed by room air conditioners. Both of these appliances are of critical importance to India's residential electricity demand. About 15percent of Indian households own a refrigerator, and sales total about 4 million per year, but are growing. At the same time, the Indian refrigerator market has seen a strong trend towards larger and more consumptive frost-free units. Room air conditioners in India have traditionally been sold to commercial sector customers, but an increasing number are going to the residential sector. Room air conditioner sales growth in India peaked in the last few years at 20percent per year. In this paper, we perform an engineering-based analysis using data specific to Indian appliances. We evaluate costs and benefits to residential and commercial sector consumers from increased equipment costs and utility bill savings. The analysis finds that, while the BEE scheme presents net benefits to consumers, there remain opportunities for efficiency improvement that would optimize consumer benefits, according …
Date: May 30, 2009
Creator: McNeil, Michael A. & Iyer, Maithili
Object Type: Article
System: The UNT Digital Library
Migratory Patterns, Structure, Abundance, and Status of Bull Trout Populations from Subbasins in the Columbia Plateau, Annual Report 2001-2002. (open access)

Migratory Patterns, Structure, Abundance, and Status of Bull Trout Populations from Subbasins in the Columbia Plateau, Annual Report 2001-2002.

None
Date: May 30, 2003
Creator: Sankovich, Paul; Gunckel, Stephanie & Hemmingsen, Alan
Object Type: Report
System: The UNT Digital Library
National Computational Infrastructure for Lattice Gauge Theory (open access)

National Computational Infrastructure for Lattice Gauge Theory

In this document we describe work done under the SciDAC-1 Project National Computerational Infrastructure for Lattice Gauge Theory. The objective of this project was to construct the computational infrastructure needed to study quantim chromodynamics (QCD). Nearly all high energy and nuclear physicists in the United States working on the numerical study of QCD are involved in the project, as are Brookhaven National Laboratory (BNL), Fermi National Accelerator Laboratory (FNAL), and Thomas Jefferson National Accelerator Facility (JLab). A list of the serior participants is given in Appendix A.2. The project includes the development of community software for the effective use of the terascale computers, and the research and development of commodity clusters optimized for the study of QCD. The software developed as part of this effort is pubicly available, and is being widely used by physicists in the United States and abroad. The prototype clusters built with SciDAC-1 fund have been used to test the software, and are available to lattice guage theorists in the United States on a peer reviewed basis.
Date: May 30, 2008
Creator: Reed, Daniel, A
Object Type: Report
System: The UNT Digital Library
Most Probable Number Rapid Viability PCR Method to Detect Viable Spores of Bacillus anthracis in Swab Samples (open access)

Most Probable Number Rapid Viability PCR Method to Detect Viable Spores of Bacillus anthracis in Swab Samples

This note presents a comparison of Most-Probable-Number Rapid Viability (MPN-RV) PCR and traditional culture methods for the quantification of Bacillus anthracis Sterne spores in macrofoam swabs generated by the Centers for Disease Control and Prevention (CDC) for a multi-center validation study aimed at testing environmental swab processing methods for recovery, detection, and quantification of viable B. anthracis spores from surfaces. Results show that spore numbers provided by the MPN RV-PCR method were in statistical agreement with the CDC conventional culture method for all three levels of spores tested (10{sup 4}, 10{sup 2}, and 10 spores) even in the presence of dirt. In addition to detecting low levels of spores in environmental conditions, the MPN RV-PCR method is specific, and compatible with automated high-throughput sample processing and analysis protocols.
Date: May 30, 2008
Creator: Letant, S. E.; Kane, S. R.; Murphy, G. A.; Alfaro, T. M.; Hodges, L.; Rose, L. et al.
Object Type: Article
System: The UNT Digital Library
Hanford Site Climatological Data Summary 2000 with Historical Data (open access)

Hanford Site Climatological Data Summary 2000 with Historical Data

This document presents the climatological data measured at the U.S. Department of Energy's Hanford Site for calendar year 2000.
Date: May 30, 2001
Creator: Hoitink, Dana J.; Burk, Kenneth W. & Ramsdell, James V.
Object Type: Report
System: The UNT Digital Library
MWRRET Value-Added Product: The Retrieval of Liquid Water Path and Precipitable Water Vapor from Microwave Radiometer (MWR) Datasets May 2009 (open access)

MWRRET Value-Added Product: The Retrieval of Liquid Water Path and Precipitable Water Vapor from Microwave Radiometer (MWR) Datasets May 2009

This report provides a short description of the Atmospheric Radiation Measurement (ARM) Climate Research Facility (ACRF) microwave radiometer (MWR) RETrievel (MWRRET) value-added product (VAP) algorithm. This algorithm utilizes a complementary physical retrieval method and applies brightness temperature offsets to reduce spurious liquid water path (LWP) bias in clear skies resulting in significantly improved precipitable water vapor (PWV) and LWP retrievals. We present a general overview of the technique, input parameters, output products, and describe data quality checks. A more complete discussion of the theory and results is given in Turner et al. (2007b).
Date: May 30, 2009
Creator: Gaustad, K. L. & Turner, D. D.
Object Type: Report
System: The UNT Digital Library
A Study on the In-growth of Uranium Daughters Gamma-rays from a Freshly Separated Uranium Gamma-ray Standard (open access)

A Study on the In-growth of Uranium Daughters Gamma-rays from a Freshly Separated Uranium Gamma-ray Standard

None
Date: May 30, 2013
Creator: Wang, T. F.
Object Type: Article
System: The UNT Digital Library
Optimization of the Dynamic Aperture for SPEAR3 Low-Emittance Upgrade (open access)

Optimization of the Dynamic Aperture for SPEAR3 Low-Emittance Upgrade

A low emittance upgrade is planned for SPEAR3. As the first phase, the emittance is reduced from 10nm to 7nm without additional magnets. A further upgrade with even lower emittance will require a damping wiggler. There is a smaller dynamic aperture for the lower emittance optics due to a stronger nonlinearity. Elegant based Multi-Objective Genetic Algorithm (MOGA) is used to maximize the dynamic aperture. Both the dynamic aperture and beam lifetime are optimized simultaneously. Various configurations of the sextupole magnets have been studied in order to find the best configuration. The betatron tune also can be optimized to minimize resonance effects. The optimized dynamic aperture increases more than 15% from the nominal case and the lifetime increases from 14 hours to 17 hours. It is important that the increase of the dynamic aperture is mainly in the beam injection direction. Therefore the injection efficiency will benefit from this improvement.
Date: May 30, 2012
Creator: Wang, Lanfa; Huang, Xiaobiao; Nosochkov, Yuri; Safranek, James A. & Borland, Michael
Object Type: Article
System: The UNT Digital Library
The PNNL Lab Homes Experimental Plan, FY12−FY15 (open access)

The PNNL Lab Homes Experimental Plan, FY12−FY15

The PNNL lab homes (http://labhomes.pnnl.gov/ ) are two manufactured homes recently installed immediately south of the 6th Street Warehouse on the PNNL Richland, WA campus that will serve as a project test bed for DOE, PNNL and its research partners who aim to achieve highly energy efficient and grid-responsive homes. The PNNL Lab Homes project is the first of its kind in the Pacific Northwest region. The Energy & Environment Directorate at PNNL, working with multiple sponsors, will use the identical 1,500 square-foot homes for experiments focused on reducing energy use and peak demand. Research and demonstration primarily will focus on retrofit technologies, and the homes will offer a unique, side-by-side ability to test and compare new ideas and approaches that are applicable to site-built as well as manufactured homes. The test plan has the following objectives: • To define a retrofit solution packages for moderate to cold climates that can be cost effectively deployed in the Pacific NW to save 50% of the energy needs of a typical home while enhancing the comfort and indoor air quality. The retrofit strategies would also lower the peak demands on the grid. • To leverage the unique opportunity in the lab homes …
Date: May 30, 2012
Creator: Widder, Sarah H.; Parker, Graham B. & Baechler, Michael C.
Object Type: Report
System: The UNT Digital Library