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3-D vertical seismic profiling at LLNL Site 300

Description: The initial goal of the 3-D Vertical Seismic Profiling (VSP) work at LLNL was to characterize seismic wave velocities and frequencies below the vadose zone to design the acquisition geometry for a 3-D shallow surface seismic reflection survey. VSPs are also used routinely to provide a link between surface seismic data and well logs. However, a test 2-D seismic line recorded at LLNL in the Spring of 1994 indicated that obtaining high quality reflection images below the vadose zone, yet shallower… more
Date: January 29, 1997
Creator: Bainer, R.; Rector, J. & Milligan, P.
Item Type: Refine your search to only Report
open access

Activity of fuel batches processed through Hanford separations plants, 1944 through 1989

Description: This document provides a printout of the ``Fuel Activity Database`` (version U6) generated by the Hanford DKPRO code and transmitted to the Los Alamos National Laboratory for input to their ``Hanford Defined Waste`` model of waste tank inventories. This fuel activity file consists of 1,276 records--each record representing the activity associated with a batch of spent reactor fuel processed by month (or shorter period) through individual Hanford separations plants between 1944 and 1989. Each re… more
Date: July 29, 1997
Creator: Watrous, R. A. & Wootan, D. W.
Item Type: Refine your search to only Report
open access

Advanced sluicing system test report for single shell tank waste retrieval integrated testing

Description: This document describes the testing performed by ARD Environmental, Inc., and Los Alamos Technical Associates of the LATA/ARD Advanced Sluicing System, in support of ACTR Phase 1 activities. Testing was to measure the impact force and pressures of sluicing streams at three different distances, as measured by the Government supplied load cell. Simulated sluicing of large simulated salt cake and hard pan waste coupons was also performed. Due to operational difficulties experienced with the Govern… more
Date: May 29, 1997
Creator: Berglin, E.J.
Item Type: Refine your search to only Report
open access

Analysis of classical transport equations for the Tokamak edge plasma

Description: The classical fluid transport equations for a magnet-plasma as given, for example, by Braginskii [1], are complicated in their most general form. Here we obtain the simplest reduced set which contains the essential physics of the tokamak edge problem in slab geometry by systematically applying a parameter ordering and making use of specific symmetries. An important ingredient is a consistent set of boundary conditions as described elsewhere [2]. This model clearly resolves some important issues… more
Date: September 29, 1997
Creator: Rognlien, T. D., LLNL
Item Type: Refine your search to only Article
open access

Application of hazard assessment techniques in the CISF design process

Description: The Department of Energy has submitted to the NRC staff for review a topical safety analysis report (TSAR) for a Centralized Interim Storage Facility (CISF). The TSAR will be used in licensing the CISF when and if a site is designated. CISF1 design events are identified based on thorough review of design basis events (DBEs) previously identified by dry storage system suppliers and licensees and through the application of hazard assessment techniques. A Preliminary Hazards Assessment (PHA) is pe… more
Date: October 29, 1997
Creator: Thornton, J. R. & Henry, T.
Item Type: Refine your search to only Article
open access

Application of simple ramsauer model to neutron total cross sections

Description: The simple nuclear Ramsauer model has been used successfully to fit neutron cross sections for three decades, but has not been widely used because the foundations of the model seem to be so unrealistic. We have shown that the Glauber calculations with the inclusion of refraction and optical model calculations essentially validate this simple model for neutron total cross sections in the neutron energy range of 5-50 MeV. This model yields a simple formula for parameterizing the energy dependence… more
Date: April 29, 1997
Creator: Bauer, R. W.; Anderson, J. D.; Grimes, S. M. & Madsen, V. A.
Item Type: Refine your search to only Article
open access

ATP for the portable 500 CFM exhauster POR-006 skid D

Description: This Acceptance Test Plan is for a 500 CFM Portable Exhauster POR-006 to be used for saltwell pumping. The Portable Exhauster System will be utilized to eliminate potential flammable gases that may exist within the dome space of the tank. This Acceptance Plan will test and verify that the exhauster meets the specified design criteria, safety requirements, operations requirements, and will provide a record of the functional test results.
Date: July 29, 1997
Creator: Keller, C. M.
Item Type: Refine your search to only Report
open access

Beam charge and current neutralization of high-charge-state heavy ions

Description: High-charge-state heavy-ions may reduce the accelerator voltage and cost of heavy-ion inertial fusion drivers, if ways can be found to neutralize the space charge of the highly charged beam ions as they are focused to a target in a fusion chamber. Using 2-D Particle-In- Cell simulations, we have evaluated the effectiveness of two different methods of beam neutralization: (1) by redistribution of beam charge in a larger diameter, preformed plasma in the chamber, and (2), by introducing a cold-el… more
Date: October 29, 1997
Creator: Logan, B. G. & Callahan, D. A.
Item Type: Refine your search to only Article
open access

Bulge Delta Scuti Stars in the MACHO database

Description: The authors describe the search for {delta} Scuti stars in the MACHO database of bulge fields. Concentrating on a sample of high amplitude {delta} Scutis, they examine the light curves and pulsation modes. They also discuss their spatial distribution and evolutionary status using mean colors and absolute magnitudes.
Date: July 29, 1997
Creator: Minnniti, D.; Alcock, C.; Alves, D. R.; Axelrod, T. S.; Becker, A.; Bennett, D. P. et al.
Item Type: Refine your search to only Article
open access

Chemical Imaging of Living Cells by Synchrotron Infrared Microspectrometry

Description: Chemical mapping of proteins and lipids inside a single living cell and at a resolution of a few microns, has been performed using synchroton infrared microspectrometry. Modifications of the chemical distributions upon mitosis and necrosis has been investigated.
Date: July 29, 1997
Creator: Jamin, N.; Dumas, P.; Moncuit, J.; Fridman, W. H.; Teillaud, J. L.; Carr, G. L. et al.
Item Type: Refine your search to only Article
open access

Combinatorial methods for gene recognition

Description: The major result of the project is the development of a new approach to gene recognition called spliced alignment algorithm. They have developed an algorithm and implemented a software tool (for both IBM PC and UNIX platforms) which explores all possible exon assemblies in polynomial time and finds the multi-exon structure with the best fit to a related protein. Unlike other existing methods, the algorithm successfully performs exons assemblies even in the case of short exons or exons with unus… more
Date: October 29, 1997
Creator: Pevzner, Pavel A.
Item Type: Refine your search to only Report
open access

Control Dewar and VLPC Bayonet Can Platform Connection Design and Analysis

Description: The four connections for the control dewar and VLPC bayonet can platform are designed, using finite element analysis, to carry all dead weight and live loads. Based on the loads applied to the platform, two 1 inch thick plates and two 3/4 inch thick brackets made of ASTM A572-Grade 42 are required. The 1 inch thick plate requires a 3/8 inch thick intermediate steel material, between the 8-inch x 4-inch x 1/4-inch boom and the plate, for load reinforcement as well as weld area reinforcement. Bot… more
Date: July 29, 1997
Creator: Kuwazaki, A.
Item Type: Refine your search to only Report
open access

Corrosion resistance of inconel 690 to sodium carbonate, calcium carbonate, and sodium meta silicate at 900 and 1100{degrees}C

Description: Corrosive attack of Inconel 690 coupons was not observed following 3 day exposure tests to calcium carbonate, sodium carbonate, and sodium meta silicate at 900 {degrees}C. However, melt line attack was evident on coupons exposed to sodium meta silicate and sodium carbonate tested for 3 days at 1100 {degrees}C. In addition, intergranular attack (IGA), approximately 0.67 mils/day, was observed on the Inconel 690 coupon exposed to calcium carbonate at 1100 {degrees}C. Calcium carbonate did not com… more
Date: January 29, 1997
Creator: Imrich, K. J.
Item Type: Refine your search to only Report
open access

CRC DEPLETION CALCULATIONS FOR THE NON-RODDED ASSEMBLIES IN BATCHES 1, 2, AND 3 OF CRYSTAL RIVER UNIT 3

Description: The purpose of this design analysis is to document the SAS2H depletion calculations of certain non-rodded fuel assemblies from batches 1, 2, and 3 of the Crystal River Unit 3 pressurized water reactor (PWR) that are required for Commercial Reactor Critical (CRC) evaluations to support development of the disposal criticality methodology. A non-rodded assembly is one which never contains a control rod assembly (CRA) or an axial power shaping rod assembly (APSRA) during its irradiation history. Th… more
Date: July 29, 1997
Creator: Wright, Kenneth D.
Item Type: Refine your search to only Report
open access

Design requirements document for the phase 1 privatization electrical power system

Description: The electrical system for the Phase 1 privatization facilities will support the TWRS mission by providing the electrical power to the Phase 1 privatized facilities. This system will receive power from the Department of Energy-Richland Operations (RL) A4-8 230 kV transmission system powered from Bonneville Power Administration (BPA) Ashe and Midway 230 kV Substations. The existing RL 230 kV transmission line will be modified and looped 1021 into the new 230 kV substation bus. The new substation … more
Date: October 29, 1997
Creator: Singh, G.
Item Type: Refine your search to only Report
open access

Development of an `intelligent grinding wheel` for in-process monitoring of ceramic grinding. Semi-annual report No. 2, March 1, 1997--August 31, 1997

Description: The overall objective of this project is to develop sensor-integrated `intelligent` diamond wheels for grinding ceramics. Such wheels will be `smart` enough to monitor and supervise both the wheel preparation and grinding processes without the need to instrument the machine tool. Intelligent wheels will utilize re-useable cores integrated with two types of sensors: acoustic emission (AE) and dynamic force transducers. Signals from the sensors will be transmitted from a rotating wheel to a recei… more
Date: September 29, 1997
Creator: Malkin, S.; Gao, R.; Guo, C.; Varghese, B. & Pathare, S.
Item Type: Refine your search to only Report
open access

Development of Precipitated Iron Fischer-Tropsch Catalysts.

Description: Four (alumina or silica) supported catalysts with nominal compositions (on mass basis) of synthesized catalysts are: (1) 100 Fe/5 Cu/6 K/139 SiO{sub 2} (2) 100 Fe/10 Cu/6 K/134 SiO{sub 2}, (3) 100 Fe/5 Cu/ K/139 Al{sub 2}0{sub 3} and (4) 100 Fe/10 Cu/6 K/134 Al{sub 2}0{sub 3} were char BET surface area measurements. The surface areas of all four catalysts are between 94 and 136 m{sup 2}/g, whereas the surface areas of alumina and silica support are 213 and 252 m{sup 2}/g, respectively. The decr… more
Date: August 29, 1997
Creator: Bukur, D. B.; Ding, Y. & Chokkaram, S.
Item Type: Refine your search to only Report
open access

Diffractive optics for compact flat panel displays. Final report

Description: Three years ago LLNL developed a practical method to dramatically reduce the chromatic aberration in single element diffractive imaging lenses. High efficiency, achromatic imaging lenses have been fabricated for human vision correction. This LDRD supported research in applying our new methods to develop a unique, diffraction-based optical interface with solid state, microelectronic imaging devices. Advances in microelectronics have led to smaller, more efficient components for optical systems. … more
Date: April 29, 1997
Creator: Sweeney, D. & DeLong, K.
Item Type: Refine your search to only Report
open access

Dolphin Protection and Tuna Seining

Description: From its inception in 1972, one of the goals of the Marine Mammal Protection Act (MMPA) was to reduce the incidental mortality of dolphins in the ETP tuna fishery. Regulations promulgated under MMPA authority set standards for tuna seining and motivated technological improvements that reduced dolphin mortalities in this fishery -- by 1977, annual dolphin mortality by U.S. tuna seiners had declined to about 25,450 animals. Despite the extensive mortalities, no ETP dolphin population has been lis… more
Date: August 29, 1997
Creator: Buck, Eugene H.
Item Type: Refine your search to only Report
open access

DOSE RATES FOR WESTINGHOUSE 17X17 MOX PWR SNF IN A WASTE PACKAGE (SCPB: N/A)

Description: This analysis is prepared by the Mined Geologic Disposal System (MGDS) Waste Package Development Department (WPDD) to estimate the dose rate on and near the surface a Multi-Purpose Canister (MPC) PWR waste package (WP) which is loaded with Westinghouse 17 x 17 mixed oxide (MOX) PWR fuel. The 21 PWR MPC WP is used to provide an upper bound for waste package designs since the 12 PWR MPC WP will have a smaller source term and an equivalent amount of shielding. the objectives of this evaluation are… more
Date: January 29, 1997
Creator: Lotz, T.L.
Item Type: Refine your search to only Report
open access

Empirical model for shell-corrected level densities

Description: An empirical model for calculating level densities of closed and near- closed shell nuclei has been developed and tested. This method is based on the calculation of shell plus pairing corrections for each relevant nuclide. A new version of the ALICE code is used to extract these corrections from the Myers-Swiatecki mass formula and to apply them to the calculation of effective excitations in level densities. The corrections are applied in a backshifted fashion to assure correct threshold depend… more
Date: April 29, 1997
Creator: Ross, M.A. & Blann, M.
Item Type: Refine your search to only Article
open access

Engineering Development of Advanced Physical Fine Coal Cleaning for Premium Fuel Applications: Task 9 - Selective agglomeration Module Testing and Evaluation.

Description: The primary goal of this project was the engineering development of two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, for premium fuel applications. The project scope included laboratory research and bench-scale testing of both processes on six coals to optimize the processes, followed by the design, construction, and operation of a 2 t/hr process development unit (PDU). The project began in October, 1992, and is scheduled for completion by Septem… more
Date: September 29, 1997
Creator: Moro, N. & Jha, M. C.
Item Type: Refine your search to only Report
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