States

242-A Evaporator Condensate Tank (TK-C-100) tie down evaluation (open access)

242-A Evaporator Condensate Tank (TK-C-100) tie down evaluation

The existing Condensate Tank (TK-C-100) in the 242-A Evaporator building is not anchored to the floor slab. This tank is a Safety Class 3 sitting in a Safety Class 2 building. The tank needed to be evaluated to withstand the seismic loads. Anchor bolts have been designed to hold the tank during the seismic event.
Date: January 23, 1995
Creator: Hundal, T. S.
Object Type: Report
System: The UNT Digital Library
242-A Evaporator ion exchange column (IX-D-1) tie down evaluation (open access)

242-A Evaporator ion exchange column (IX-D-1) tie down evaluation

The existing ion exchange column in the 242-A evaporator building is not anchored to the floor slab. This equipment is a Safety Class 3 sitting in a Safety Class 2 building. The column needed to be evaluated to withstand the seismic loads. Anchor bolts have been designed to hold the column during the seismic event.
Date: January 23, 1995
Creator: Hundal, T. S.
Object Type: Report
System: The UNT Digital Library
Atomic scale simulations of arsenic ion implantation and annealing in silicon (open access)

Atomic scale simulations of arsenic ion implantation and annealing in silicon

We present results of multiple-time-scale simulations of 5, 10 and 15 keV low temperature ion implantation of arsenic on silicon (100), followed by high temperature anneals. The simulations start with a molecular dynamics (MD) calculation of the primary state of damage after 10ps. The results are then coupled to a kinetic Monte Carlo (MC) simulation of bulk defect diffusion and clustering. Dose accumulation is achieved considering that at low temperatures the damage produced in the lattice is stable. After the desired dose is accumulated, the system is annealed at 800{degrees}C for several seconds. The results provide information on the evolution for the damage microstructure over macroscopic length and time scales and affords direct comparison to experimental results. We discuss the database of inputs to the MC model and how it affects the diffusion process.
Date: January 23, 1995
Creator: Caturla, M.J.; Diaz de la Rubia, T. & Jaraiz, M.
Object Type: Article
System: The UNT Digital Library
Attachments for fire modeling for Building 221-T, T Plant canyon deck and railroad tunnel (open access)

Attachments for fire modeling for Building 221-T, T Plant canyon deck and railroad tunnel

The purpose of this attachment is to provide historical information and documentation for Document No. WHC-SD-CP-ANAL-008 Rev 0, ``Fire Modeling for Building 221-T--T Plant Canyon Deck and Railroad Tunnel``, dated September 29, 1994. This data compilation contains the following: Resumes of the Technical Director, Senior Engineer and Junior Engineer; Review and Comment Record; Software Files; CFAST Input and Output Files; Calculation Control Sheets; and Estimating Sprinkler Actuation Time in the Canyon and Railroad Tunnel. The T Plant was originally a fuel reprocessing facility. It was modified later to decontaminate and repair PuRex process equipment.
Date: January 23, 1995
Creator: Oar, D. L.
Object Type: Report
System: The UNT Digital Library
Design criteria tank farm storage and staging facility (open access)

Design criteria tank farm storage and staging facility

Tank Farms Operations must store/stage material and equipment until work packages are ready to work. Consumable materials are also required to be stored for routine and emergency work. Safety issues based on poor housekeeping and material deterioration due to weather damage has resulted from inadequate storage space. It has been determined that a storage building in close proximity to the Tank Farm work force would be cost effective. This document provides the design criteria for the design of the storage and staging buildings near 272AW and 272WA buildings.
Date: January 23, 1995
Creator: Lott, D. T.
Object Type: Report
System: The UNT Digital Library
DOT-7A packaging test procedure (open access)

DOT-7A packaging test procedure

This test procedure documents the steps involved with performance testing of Department of Transportation Specification 7A (DOT-7A) Type A packages. It includes description of the performance tests, the personnel involved, appropriate safety considerations, and the procedures to be followed while performing the tests. Westinghouse Hanford Company (WHC) is conducting the evaluation and testing discussed herein for the Department of Energy-Headquarters, Division of Quality Verification and Transportation Safety (EH-321). Please note that this report is not in WHC format. This report is being submitted through the Engineering Documentation System so that it may be used for reference and information purposes.
Date: January 23, 1995
Creator: Kelly, D. L.
Object Type: Report
System: The UNT Digital Library
DOT-7A Type A packaging design guide (open access)

DOT-7A Type A packaging design guide

The purpose of this Design Guide is to provide instruction for designing a U.S. Department of Transportation Specification 7A (DOT-7A) Type A packaging. Another purpose for this Design Guide is to support the evaluation and testing activities that are performed on new designs by a U.S. Department of Energy (DOE) test facility. This evaluation and testing program is called the DOT-7A Program. When an applicant has determined that a DOT-7A packaging is needed and not commercially available, a design may be created according to this document. The design should include a packaging drawing, specifications, analysis report, operating instructions, and a Packaging Qualification Checklist; all of which should be forwarded to a DOE/HQ approved test facility for evaluation and testing. This report is being submitted through the Engineering Documentation System so that it may be used for reference and information purposes.
Date: January 23, 1995
Creator: Kelly, D. L.
Object Type: Report
System: The UNT Digital Library
Final Report on Testing of Off-Gas Treatment Technologies for Abatement of Atmospheric Emissions of Chlorinated Volatile Organic Compounds (open access)

Final Report on Testing of Off-Gas Treatment Technologies for Abatement of Atmospheric Emissions of Chlorinated Volatile Organic Compounds

The purpose of this report is to summarize the results of the program for off-gas treatment of atmospheric emissions of chlorinated volatile organic compounds (CVOCs), in particular trichloroethylene (TCE) and perchloroethylene (PCE). This program was funded through the Department of Energy Office of Technology Development`s VOC`s in Non-Arid Soils Integrated Demonstration (VNID). The off-gas treatment program was initiated after testing of in-situ air stripping with horizontal wells was completed (Looney et al., 1991). That successful test expectedly produced atmospheric emissions of CVOCs that were unabated. It was decided after that test that an off-gas treatment is an integral portion of remediation of CVOC contamination in groundwater and soil but also because several technologies were being developed across the United States to mitigate CVOC emissions. A single platform for testing off-gas treatment technologies would facilitate cost effective evaluation of the emerging technologies. Another motivation for the program is that many CVOCs will be regulated under the Clean Air Act Amendments of 1990 and are already regulated by many state regulatory programs. Additionally, compounds such as TCE and PCE are pervasive subsurface environmental contaminants, and, as a result, a small improvement in terms of abatement efficiency or cost will significantly reduce CVOC …
Date: January 23, 1995
Creator: Jarosch, T. R.; Haselow, J. S.; Rossabi, J.; Burdick, S. A.; Raymond, R.; Young, J. E. et al.
Object Type: Report
System: The UNT Digital Library
Gas/liquid sampler for closed canisters in KW Basin - test report (open access)

Gas/liquid sampler for closed canisters in KW Basin - test report

Test report for the gas/liquid sampler designed and developed for sampling closed canisters in the KW Basin.
Date: January 23, 1995
Creator: Pitkoff, C.C.
Object Type: Report
System: The UNT Digital Library
Joint UK/US Radar Program progress reports for period December 1--31, 1994 (open access)

Joint UK/US Radar Program progress reports for period December 1--31, 1994

Topics discussed in this report are current accomplishments in many functions to include: airborne RAR/SAR, radar data processor, ground based SAR signal processing workstation, static airborne radar, multi-aperture space-time array radar, radar field experiments, data analysis and detection theory, management, radar data analysis, modeling and analysis, current meter array, UCSB wave tank, stratified flow facility, Russian Institute of Applied Physics, and budget status.
Date: January 23, 1995
Creator: Twogood, R. E.; Brase, J. M.; Mantrom, D. D.; Rino, C.; Chambers, D. H.; Robey, H. F. et al.
Object Type: Report
System: The UNT Digital Library
LAPACK for distributed memory architectures: The next generation (open access)

LAPACK for distributed memory architectures: The next generation

We report the progress of an ongoing project that investigates the reusability of LAPACK code for distributed memory MIMD architectures. Major recent revisions include the adoption of a two-dimensional data mapping. This change enhances performance, scalability, and flexibility of the algorithms. Performance results from the Intel iPSC/860 and Intel Touchstone Delta systems are included.
Date: January 23, 1995
Creator: Demmel, J.; Dongarra, J.; van de Geijn, R. & Walker, D.
Object Type: Article
System: The UNT Digital Library
A molecular dynamics simulation study of defect production in vanadium (open access)

A molecular dynamics simulation study of defect production in vanadium

We performed molecular dynamics simulations to investigate the process of defect production in pure vanadium. The interaction of atoms was described by the EAM interatomic potential modified at short range to merge smoothly with the universal potential for description of the high energy recoils in cascades. The melting point of this EAM model of vanadium was found to be consistent with the experimental melting temperature. The threshold energies of displacement events in the model system are also consistent with experimental minimum threshold in vanadium, and its average was found to be 44 eV. We evaluated the efficiencies of defect production in the displacement events initiated by recoils with kinetic energy up to 5 keV, and found that the probability of cluster formation is smaller than that of simulated events in fcc metals reported in the literature.
Date: January 23, 1995
Creator: Morishita, K. & Diaz de la Rubia, T.
Object Type: Article
System: The UNT Digital Library
Molecular dynamics studies of the ion beam induced crystallization in silicon (open access)

Molecular dynamics studies of the ion beam induced crystallization in silicon

We have studied the ion bombardment induced amorphous-to-crystal transition in silicon using molecular dynamics techniques. The growth of small crystal seeds embedded in the amorphous phase has been monitored for several temperatures in order to get information on the effect of the thermal temperature increase introduced by the incoming ion. The role of ion-induced defects on the growth has been also studied.
Date: January 23, 1995
Creator: Marques, L. A.; Caturla, M. J. & Huang, H.
Object Type: Article
System: The UNT Digital Library
Now Enhancing Working Skills: The ``NEWS`` Program. Final report (open access)

Now Enhancing Working Skills: The ``NEWS`` Program. Final report

In October of 1992, Los Alamos National Laboratory and Merex Corporation began a pilot basic skills program to enhance workers` skills. The program, known as the NEWS (Now Enhancing Working Skills) Program, was implemented by the Training and Development Group of the Human Resources Division. A group of 106 employees known as Radiological Control Technicians (RCTs) from ESH-1 (Environmental, Safety, and Health) were targeted to take mandated DOE (Department of Energy) training. The main goal of the LANL/Merex partnership was to help RCTs prepare for mandated DOE Rad Con training and job performance by improving their information processing and math skills. A second goal of this project was to use the information from this small group to make some predictions about the Laboratory as a whole. This final report contains the description and an appendix for the ``NEWS`` program. The topics in this report include Merex class descriptions, test score results for the MAT, the WAT, the TABE, and Challenge test, a follow-up survey to Merex IPS and math training, student feedback statistics for skills programs, and lessons learned from the program.
Date: January 23, 1995
Creator: Kuiper, A.
Object Type: Report
System: The UNT Digital Library
RTAP evaluation (open access)

RTAP evaluation

An in-depth analysis of the RTAP product was undertaken within the CNC associate program to determine the feasibility of utilizing it to replace the current Supervisory Control System that supports the AVLIS program. This document contains the results of that evaluation. With some fundamental redesign the current Supervisory Control system could meet the needs described above. The redesign would require a large amount of software rewriting and would be very time consuming. The higher level functionality (alarming, automation, etc.) would have to wait until its completion. Our current understanding and preliminary testing indicate that using commercial software is the best way to get these new features at the minimum cost to the program. Additional savings will be obtained by moving the maintenance costs of the basic control system from in-house to commercial industry and allowing our developers to concentrate on the unique control areas that require customization. Our current operating system, VMS, has become a hindrance. The UNIX operating system has become the choice for most scientific and engineering systems and we should follow suit. As a result of the commercial system survey referenced above we selected RTAP, a SCADA product developed by Hewlett Packard (HP), as the most favorable …
Date: January 23, 1995
Creator: Cupps, K.; Elko, S. & Folta, P.
Object Type: Report
System: The UNT Digital Library
Tank 241-B-103 tank characterization plan (open access)

Tank 241-B-103 tank characterization plan

The Defense Nuclear Facilities Safety Board (DNFSB) has advised the US Department of Energy (DOE) to concentrate the near-term sampling and analysis activities on identification and resolution of safety issues. The data quality objective (DQO) process was chosen as a tool to be used to identify sampling and analytical needs for the resolution of safety issues. As a result, a revision in the Federal Facility Agreement and Consent Order (Tri-Party Agreement or TPA) milestone M-44-00 has been made, which states that ``A Tank Characterization Plan (TCP) will also be developed for each double-shell tank (DST) and single-shell tank (SST) using the DQO process... Development of TCPs by the DQO process is intended to allow users (e.g., Hanford Facility user groups, regulators) to ensure their needs will be met and that resources are devoted to gaining only necessary information.`` This document satisfies that requirement for Tank 241-B-103 (B-103) sampling activities. Tank B-103 was placed on the Organic Watch List in January 1991 due to review of TRAC data that predicts a TOC content of 3.3 dry weight percent. The tank was classified as an assumed leaker of approximately 30,280 liters (8,000 gallons) in 1978 and declared inactive. Tank B-103 is passively …
Date: January 23, 1995
Creator: Carpenter, B. C.
Object Type: Report
System: The UNT Digital Library
Technical assessment of TRUSAF for compliance with work place air sampling. Revision 1 (open access)

Technical assessment of TRUSAF for compliance with work place air sampling. Revision 1

The purpose of this Technical Work Document is to satisfy WHC-CM-1-6, the ``WHC Radiological Control Manual.`` This first revision of the original Supporting Document covers the period from January 1, 1994 to December 31, 1994. WHC-CM-1-6 is the primary guidance for radiological control at Westinghouse Hanford Company (WHC). As such, it complies with Title 10, Part 835 of the Code of Federal Regulations. In addition to WHC-CM-1-6, there is HSRCM-1, the ``Hanford Site Radiological Control Manual`` and several Department of Energy (DOE) Orders, national consensus standards, and reports that provide criteria, standards, and requirements for workplace air sampling programs. This document provides a summary of these, as they apply to WHC facility workplace air sampling programs. this document also provides an evaluation of the compliance of the TRUSAF workplace air sampling program to the criteria, standards, and requirements and documents. Where necessary, it also indicates changes needed to bring specific locations into compliance.
Date: January 23, 1995
Creator: Butler, J. D.
Object Type: Report
System: The UNT Digital Library
Tight-binding molecular dynamics simulations on point defects diffusion and interactions in crystalline silicon (open access)

Tight-binding molecular dynamics simulations on point defects diffusion and interactions in crystalline silicon

Tight-binding molecular dynamics (TBMD) simulations are performed (i) to evaluate the formation and binding energies of point defects and defect clusters, (ii) to compute the diffusivity of self-interstitial and vacancy in crystalline silicon, and (iii) to characterize the diffusion path and mechanism at the atomistic level. In addition, the interaction between individual defects and their clustering is investigated.
Date: January 23, 1995
Creator: Tang, M.; Diaz de la Rubia, T. & Colombo, L.
Object Type: Article
System: The UNT Digital Library
Uncertainties in the measured quantities of water leaving waste Tank 241-C-106 via the ventilation system (open access)

Uncertainties in the measured quantities of water leaving waste Tank 241-C-106 via the ventilation system

The purpose of this analysis is to estimate the uncertainty in the measured quantity of water which typically leaves Tank 241-C-106 via the ventilation system each month. Such measurements are essential for heat removal estimation and tank liquid level verification purposes. The uncertainty associated with the current, infrequent, manual method of measurement (involves various psychrometric and pressure measurements) is suspected to be unreasonably high. Thus, the possible reduction of this uncertainty using a continuous, automated method of measurement will also be estimated. There are three major conclusions as a result of this analysis: (1) the uncertainties associated with the current (infrequent, manual) method of measuring the water which typically leaves Tank 241-C-106 per month via the ventilation system are indeed quite high (80% to 120%); (2) given the current psychrometric and pressure measurement methods and any tank which loses considerable moisture through active ventilation, such as Tank 241-C-106, significant quantities of liquid can actually leak from the tank before a leak can be positively identified via liquid level measurement; (3) using improved (continuous, automated) methods of taking the psychrometric and pressure measurements, the uncertainty in the measured quantity of water leaving Tank 241-C-106 via the ventilation system can be reduced …
Date: January 23, 1995
Creator: Minteer, D. J.
Object Type: Report
System: The UNT Digital Library
Waste minimization applications at a remediation site (open access)

Waste minimization applications at a remediation site

The Fernald Environmental Management Project (FEMP) owned by the Department of Energy was used for the processing of uranium. In 1989 Fernald suspended production of uranium metals and was placed on the National Priorities List (NPL). The site`s mission has changed from one of production to environmental restoration. Many groups necessary for producing a product were deemed irrelevant for remediation work, including Waste Minimization. Waste Minimization does not readily appear to be applicable to remediation work. Environmental remediation is designed to correct adverse impacts to the environment from past operations and generates significant amounts of waste requiring management. The premise of pollution prevention is to avoid waste generation, thus remediation is in direct conflict with this premise. Although greater amounts of waste will be generated during environmental remediation, treatment capacities are not always available and disposal is becoming more difficult and costly. This creates the need for pollution prevention and waste minimization. Applying waste minimization principles at a remediation site is an enormous challenge. If the remediation site is also radiologically contaminated it is even a bigger challenge. Innovative techniques and ideas must be utilized to achieve reductions in the amount of waste that must be managed or dispositioned. At …
Date: January 23, 1995
Creator: Allmon, L. A.
Object Type: Article
System: The UNT Digital Library
WRAP Module 1 waste characterization plan (open access)

WRAP Module 1 waste characterization plan

The purpose of this document is to present the characterization methodology for waste generated, processed, or otherwise the responsibility of the Waste Receiving and Processing (WRAP) Module 1 facility. The scope of this document includes all solid low level waste (LLW), transuranic (TRU), mixed waste (MW), and dangerous waste. This document is not meant to be all-inclusive of the waste processed or generated within WRAP Module 1, but to present a methodology for characterization. As other streams are identified, the method of characterization will be consistent with the other streams identified in this plan. The WRAP Module 1 facility is located in the 200 West Area of the Hanford Site. The facility`s function is two-fold. The first is to verify/characterize, treat and repackage contact handled (CH) waste currently in retrievable storage in the LLW Burial Grounds, Hanford Central Waste Complex, and the Transuranic Storage and Assay Facility (TRUSAF). The second is to verify newly generated CH TRU waste and LLW, including MW. The WRAP Module 1 facility provides NDE and NDA of the waste for both drums and boxes. The NDE is used to identify the physical contents of the waste containers to support waste characterization and processing, verification, or …
Date: January 23, 1995
Creator: Mayancsik, B. A.
Object Type: Report
System: The UNT Digital Library
X-ray tomography of preserved samples from the Geysers scientific corehole (open access)

X-ray tomography of preserved samples from the Geysers scientific corehole

Approximately 800 ft. of continuous core was recovered from borehole SB-15 D (on unit 15, near the site of the abandoned Geysers Resort) during a recently completed drilling operation. Sections of this core were collected at 50 ft intervals for subsequent examination as drilling proceeded. Five foot sections were not removed at the drill site, but were sealed in the innermost sleeve of a triple tube coring system to minimize drying and disturbance of the core. All cores remained sealed and were radiographed within 72 hours of drilling: the five foot core from near 1400 ft. was scanned within 18 hours of drilling. A third generation x-ray scanner, which uses high energy radiation to penetrate the aluminum sleeve and 3.5 inch cores, was used to make preliminary radiographs and to collect multiple views of the sample as the core is rotated in front of the beam. True three dimensional tomographs are then reconstructed from the data. The images have a spatial resolution of approximately 140 micrometers and can resolve contrast differences of 0.2%. The tomographs clearly show differences in lithology with depth in the reservoir. Partially filled fractures, vein selvage and vuggy porosity are all evident in parts of the …
Date: January 23, 1995
Creator: Bonner, B. P.; Roberts, J. J.; Schneberk, D. J.; Marsh, A.; Ruddle, C. & Updike, E.
Object Type: Article
System: The UNT Digital Library
Automated cueing to man-made objects via multi-spectral image exploitation. Semi-annual technical progress report, 10 May 1995--10 November 1995 (open access)

Automated cueing to man-made objects via multi-spectral image exploitation. Semi-annual technical progress report, 10 May 1995--10 November 1995

The efforts during this period of the program focused on image-based multi-spectral calibration and continuous investigation of multi-spectral prescreening algorithms.
Date: February 23, 1995
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Large-aperture, high-damage-threshold optics for beamlet (open access)

Large-aperture, high-damage-threshold optics for beamlet

Beamlet serves as a test bed for the proposed NIF laser design and components. Therefore, its optics are similar in size and quality to those proposed for the NIF. In general, the optics in the main laser cavity and transport section of Beamlet are larger and have higher damage thresholds than the optics manufactured for any of our previous laser systems. In addition, the quality of the Beamlet optical materials is higher, leading to better wavefront quality, higher optical transmission, and lower-intensity modulation of the output laser beam than, for example, that typically achieved on Nova. In this article, we discuss the properties and characteristics of the large-aperture optics used on Beamlet.
Date: February 23, 1995
Creator: Campbell, J.H.; Atherton, L.J.; DeYoreo, J.J.; Kozlowski, M.R.; Maney, R.T.; Montesanti, R.C. et al.
Object Type: Report
System: The UNT Digital Library