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NCSX Vacuum Vessel Fabrication

Description: The National Compact Stellarator Experiment (NCSX) is being constructed at the Princeton Plasma Physics Laboratory (PPPL) in conjunction with the Oak Ridge National Laboratory (ORNL). The goal of this experiment is to develop a device which has the steady state properties of a traditional stellarator along with the high performance characteristics of a tokamak. A key element of this device is its highly shaped Inconel 625 vacuum vessel. This paper describes the manufacturing of the vessel. The … more
Date: October 7, 2005
Creator: Viola, M. E.; Brown, T.; Heitzenroeder, P.; Malinowski, F.; Reiersen, W.; Sutton, L. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pressure Drop and Void Fraction Experiments in Simulated Pathfinder Boiler Fuel Elements

Description: A heat-transfer research and development program is being carried out in support of the Pathfinder boilingwater, integral-superheating reactor. Studies were made of the effects of tube-sheet type spacers on the axial pressure profile in a simulated fuel element. The effect of boiling on the frictional and spacer type pressure losses in a 6-ft long test section was measured. The void fraction in a test section was measured by a fine gamma-ray traversing technique. The flow downstream from a spac… more
Date: March 1, 1963
Creator: Kangas, G. & Neusen, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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EFFECTS OF ONE WEEK TRITIUM EXPOSURE ON EPDM ELASTOMER

Description: This report documents test results for the exposure of four formulations of EPDM (ethylene-propylene diene monomer) elastomer to tritium gas at one atmosphere for approximately one week and characterization of material property changes and changes to the exposure gas during exposure. All EPDM samples were provided by Los Alamos National Laboratory (LANL). Material properties that were characterized include mass, sample dimensions, appearance, flexibility, and dynamic mechanical properties. The … more
Date: June 7, 2007
Creator: Clark, E
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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OCH Spacer Design

Description: The purpose of the OCH module spacers is to keep the given dimension of .224-inch between the 1.83-inch absorber plates. This distance is determined by two liquid argon gaps of .09-inch each and a readout board of .044-inch. The spacer should be made out of a material that would give a minimum thermal contraction movement. Also the dimension of the spacer will be determined dependent upon the load applied to the spacers and the strength of the material chosen. Considering both thermal contracti… more
Date: February 4, 1987
Creator: Kurita, C. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Critical Experiments With Arrays of Orr and Bsr Fuel Elements

Description: Critical experiments were performed with ORR and BSR fuel elements to determine safe arrays in which the elements could be handled and stored. The data indicate that the optimum spacing for criticality of 168-g ORR elements in water is 0.2 in. between locating bosses annd that an infinite array of vertically placed elements onc element high would probably be subcritical with a 1 1/2-in. spacing between locating bosses. For uniform arrays of adjacent elements in water, variation in thc fuel load… more
Date: October 1, 1958
Creator: Fox, J. K. & Gilley, L. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Dynamic load test of Arquin-designed CMU wall.

Description: The Arquin Corporation has developed a new method of constructing CMU (concrete masonry unit) walls. This new method uses polymer spacers connected to steel wires that serve as reinforcing as well as a means of accurately placing the spacers so that the concrete block can be dry stacked. The hollows of the concrete block are then filled with grout. As part of a New Mexico Small Business Assistance Program (NMSBA), Sandia National Laboratories conducted a series of tests that dynamically loaded … more
Date: February 1, 2010
Creator: Jensen, Richard Pearson
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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NONDESTRUCTIVE TESTING OF EBR-I MARK III FUEL ELEMENTS AND COMPONENTS

Description: Ultrasonic and eddy current methods were used to inspect EBR-I Mark III fuel elements and componentsUltrasonic techniques were used to inspect for homogeneity of the casting, bonding of the core to the clad on the extruded rod, bonding of the Zircaloy spacer disk to the uranium, and cracks in the Zircaloy rod used for end caps. Eddy current techniques were used to measure the cladding thickness on the extruded rods and to inspect the zirconium wire used for spacers on the completed fuel element… more
Date: May 1, 1959
Creator: Beck, W.N.; Renken, C.J.; Myers, R.G. & McGonnagle, W.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Static load test of Arquin-designed CMU wall.

Description: The Arquin Corporation has developed a new method of constructing CMU (concrete masonry unit) walls. This new method uses polymer spacers connected to steel wires that serve as reinforcing as well as means of accurately placing the spacers so that the concrete block can be dry stacked. The hollows of the concrete block used in constructing the wall are then filled with grout. As part of a New Mexico Small Business Assistance Program (NMSBAP), Sandia National Laboratories conducted a series of t… more
Date: December 1, 2008
Creator: Jensen, Richard Pearson & Cherry, Jeffery L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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THERMAL UPGRADING OF 9977 RADIOACTIVE MATERIAL (RAM) TYPE B PACKAGE

Description: The 9977 package is a radioactive material package that was originally certified to ship Heat Sources and RTG contents up to 19 watts and it is now being reviewed to significantly expand its contents in support of additional DOE missions. Thermal upgrading will be accomplished by employing stacked 3013 containers, a 3013 aluminum spacer and an external aluminum sleeve for enhanced heat transfer. The 7th Addendum to the original 9977 package Safety Basis Report describing these modifications is … more
Date: March 26, 2012
Creator: Gupta, N. & Abramczyk, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Evaluation of the effects of an integral fin spacer design on predicted fuel pin and subassembly duct performance

Description: The effect of an integrally finned fuel pin cladding design on LMFBR subassembly performance has been evaluated. Effects on thermal/hydraulics, fuel pin lifetime and duct lifetime are considered. Results are presented for 19, 61 and 217 pin subassemblies.
Date: January 1, 1976
Creator: Sutherland, W. H.; Cantley, D. A.; McCurry, D. C. & Parker, M. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nuclear energy research initiative project final report. Report Period: October 1, 1999 - March 31, 2003

Description: This project developed a single material approach to reducing nuclear waste volume based on a chemically functionalized porous silica that is termed Diphosil. Diphosil was created by Chiarizia and coworkers as an ion exchange medium that selectively and nearly irreversibly sorbs highly charged metal ions, such as actinides, from appreciably acidic aqueous solutions and a version of it is now commercially available. The chelating power of Diphosil is due to diphosphonic acid groups that are anch… more
Date: May 27, 2003
Creator: Beitz, J. V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Photovoltaic manufacturing technology, Phase 1. Final subcontract report, 9 January 1991--14 April 1991

Description: This report describes the Glasstech Solar design concepts for improved thin-film module production, including three process steps: (1) The front-end step includes washing, transparent conductive oxide (TCO) deposition, and patterning. (2) The P-I-N-M step is that in which the photovoltaic cell structure is deposited, including the back contact, without breaking vacuum. (3) The back end step includes masking, etching, washing, subcell testing and repair, interconnection, and encapsulation. The d… more
Date: November 1, 1991
Creator: Brown, S.; Shen, D. S. & Heeke, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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On the Transfer of Heat to Fluids Flowing Through Pipes, Annuli, and Parallel Plates

Description: Nusselt numbers were calculated for heat transfer to fluids flowing through annuli under conditions of uniform heat flux and fully established velocity and temperature profiles. The following cases were considered: (a) laminar flow, (b) slug flow, (c) turbulent flow with molecular conduction only, and (d) turbulent flow with both molecular and eddy conduction. These Nusselt numbers were determined for two conditions: heat transfer from the inner wall only and heat transfer from the outer wall o… more
Date: January 1, 1963
Creator: Dwyer, O. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Insertion of a self-splicing intron into the mtDNA of atriploblastic animal

Description: Nephtys longosetosa is a carnivorous polychaete worm that lives in the intertidal and subtidal zones with worldwide distribution (pleijel&rouse2001). Its mitochondrial genome has the characteristics typical of most metazoans: 37 genes; circular molecule; almost no intergenic sequence; and no significant gene rearrangements when compared to other annelid mtDNAs (booremoritz19981995). Ubiquitous features as small intergenic regions and lack of introns suggested that metazoan mtDNAs are under … more
Date: April 14, 2006
Creator: Valles, Y.; Halanych, K. & Boore, J.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Deflection and Stress Analysis of the Yankee Core Support Structure

Description: The deflection and stresses of a medel of the Yankee lower core support structure, conslstlng of two clrcular perforated plates joined together by a clrcular reinforclng rib and 76 cylindrical spacers, were obtained experimentally. The relationships between the tests on the model and reference design were determined by an application of dimensional analysis. Experimental investigations are described in which various design parameters were determined and the structural rigidity of the assembly w… more
Date: September 22, 1958
Creator: Eng, G. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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APPLICATION OF ELECTROLESS-NICKEL BRAZING TO TUBULAR FUEL ELEMENTS FOR THE N.S. SAVANNAH. Status Report

Description: The feasibility of using electroless nickel, a chemical deposit containing about 10 wt.% phosphorous in nickel, as the brazing alloy for assembling tubular stainless steel fuel elements of the type specified in Core I of the N. S. Savannah was investigated. This material was selected primarily because of the ease of braze-metal preplacement by chemical deposition of the alloy on type 304 stainiess steel ferrule spacers, prior to fuelbundle assembly. Brazed joints produced by this method were ge… more
Date: June 1, 1959
Creator: Lamartine, J T & Thurber, W C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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State-of-the-Art Highly Insulating Window Frames - Research and Market Review

Description: This document reports the findings of a market and research review related to state-of-the-art highly insulating window frames. The market review focuses on window frames that satisfy the Passivhaus requirements (window U-value less or equal to 0.8 W/m{sup 2}K ), while other examples are also given in order to show the variety of materials and solutions that may be used for constructing window frames with a low thermal transmittance (U-value). The market search shows that several combinations o… more
Date: January 1, 2007
Creator: Gustavsen, Arild; Jelle, Bjorn Petter; Arasteh, Dariush & Kohler, Christian
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Molecular Profiling of Microbial Communities from Contaminated Sources: Use of Subtractive Cloning Methods and rDNA Spacer Sequences

Description: The major objective of the research was to provide appropriate sequences and to assemble a DNA arrays of oligonucleotides to be used for rapid profiling of microbial populations, from polluted areas and from areas of other interest. The sequences to be assigned to the DNA array are chosen from cloned genomic DNA from groundwater at DOE sites containing organic solvents. The sites, Hanford Nuclear Plant and Lawrence Livermore Site 300 (LLNL), have well characterized pollutant histories, which ha… more
Date: June 1, 2000
Creator: Robb, Frank T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Honeycomb spacer crush stength test results

Description: This report discusses aluminum honeycomb spacers, which are used as an energy absorbent material in shipping packages for off site shipment of radioactive materials and which were ordered in two crush strengths, 1,000 psi and 2,000 psi for use in drop tests requested by the Packaging and Transportation group as part of the shipping container rectification process. Both the group as part of the shipping container rectification process. Both the vendor and the SRTC Materials Laboratory performed … more
Date: September 15, 1993
Creator: Leader, D. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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FEA Analysis of AP-0 Target Hall Collection Lens (Current Design)

Description: The AP-0 Target Hall Collection Lens is a pulsed device which focuses anti-protons just downstream of the Target. Since the angles at which the anti-protons depart the Target can be quite large, a very high focusing strength is required to maximize anti-proton capture into the downstream Debuncher Ring. The current design of the Collection Lens was designed to operate with a focusing gradient of 1,000 T/m. However, multiple failures of early devices resulted in lowering the normal operating gra… more
Date: June 22, 2001
Creator: Hurh, P.G. & Tang, Z.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Plasma Characterization of Hall Thruster with Active and Passive Segmented Electrodes

Description: Non-emissive electrodes and ceramic spacers placed along the Hall thruster channel are shown to affect the plasma potential distribution and the thruster operation. These effects are associated with physical properties of the electrode material and depend on the electrode configuration, geometry and the magnetic field distribution. An emissive segmented electrode was able to maintain thruster operation by supplying an additional electron flux to sustain the plasma discharge between the anode an… more
Date: September 4, 2002
Creator: Raitses, Y.; Staack, D. & Fisch, N. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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