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Effects of burnup on fuel failure. Power burst tests on fuel rods with 13,000 and 32,000 MWd/MTU burnup

Description: Results are presented from preliminary tests designed to investigate the behavior of preirradiated fuel rods under reactivity initiated accident (RIA) conditions. The tests were conducted in 1970 as part of the SPERT/Capsule Driver Core (CDC) program. The report was intended to be published in a series of Idaho Nuclear Corporation Interim Technical Reports (IN-ITRs); however, the CDC program was terminated before the report could be released. In September 1975, the Nuclear Regulatory Commission concluded that the data contained in the report could be a valuable reference in planning future water reactor safety program tests and requested its release.
Date: January 1, 1976
Creator: Miller, R.W.
Partner: UNT Libraries Government Documents Department

Monte Carlo simulation of neutral beam injection into fusion reactors

Description: Motivations and techniques for the Monte Carlo computer simulation of energetic neutral beam injection for fusion reactors are described. The versatility of this approach allows a significantly more sophisticated treatment of charge transfer collision phenomena and consequent effects on engineering design than available from prior work. Exemplary results for a mirror Fusion Engineering Research Facility (FERF) are discussed. (auth)
Date: September 15, 1975
Creator: Miller, R.L.
Partner: UNT Libraries Government Documents Department

DIE Deflection Modeling: Empirical Validation and Tech Transfer

Description: This report summarizes computer modeling work that was designed to help understand how the die casting die and machine contribute to parting plane separation during operation. Techniques developed in earlier research (8) were applied to complete a large computational experiment that systematically explored the relationship between the stiffness of the machine platens and key dimensional and structural variables (platen area covered, die thickness, platen thickness, thickness of insert and the location of the die with respect to the platen) describing the die/machine system. The results consistently show that there are many significant interactions among the variables and it is the interactions, more than the individual variables themselves, which determine the performance of the machine/die system. That said, the results consistently show that it is the stiffness of the machine platens that has the largest single impact on die separation.
Date: May 28, 2003
Creator: Miller, R. Allen
Partner: UNT Libraries Government Documents Department

Synthesis of New Water-Soluble Metal-Binding Polymers combinatorial Chemistry Approach

Description: (1) Synthesis of Fused Tetraheterocyclic Azepines: (2) Synthesis of Linear Bidentate Diisoxazole and Bidentate Isoxazole-Furyl/Thienyl/Pyridyl Motifs: (3) Synthesis of Pyrazolo[3,4-g] [2,1] dihydrobenzoisoxazol(in)es: (4) Synthesis of Spiro-Fused (C5)-Isozazoline-(C4)-Pyrazolones:
Date: May 7, 2004
Creator: Miller, R. Bryan
Partner: UNT Libraries Government Documents Department

Modeling the Mechanical Performance of Die Casting Dies

Description: The following report covers work performed at Ohio State on modeling the mechanical performance of dies. The focus of the project was development and particularly verification of finite element techniques used to model and predict displacements and stresses in die casting dies. The work entails a major case study performed with and industrial partner on a production die and laboratory experiments performed at Ohio State.
Date: February 27, 2004
Creator: Miller, R. Allen
Partner: UNT Libraries Government Documents Department

Production Tests-240: Gamma spectrometer development and testing

Description: The office of Safeguards and Nuclear Materials Management of the US Atomic Energy Commission has commissioned Battelle-Northwest to design, build, and test a gamma spectrometer with the specific purpose of measuring photo peaks emitted from irradiated fuel. The parameters of interest are not just the photo peaks but the variations of the rays with respect to irradiation time in the reactor and storage time after discharge from the reactor. The spectrometer is being built at Tech Shops in the 300 Area and is scheduled to be installed in the cobalt irradiation facility of the KE Reactor spent fuel storage basin during the first week of November, 1970. One complete tube of 38 natural uranium fuel elements, irradiated at KE Reactor, will be specifically discharged for this test program and will be scanned at weekly intervals for a period of one year following the date of discharge by Battelle-Northwest technicians using the spectrometer in the fuel basin. This production test defines the number of fuel assemblies required, the exposure criteria for the fuel, and the special handling procedure necessary to maintain identification of the fuel from the time of discharge. The objective of this test is to invent a system of gamma-ray measurements which can be used to derive the exposure and time after discharge of spent reactor fuel.
Date: September 30, 1979
Creator: Miller, R.L.
Partner: UNT Libraries Government Documents Department

Understanding the Relationship Between Filling Pattern and Part Quality in Die Casting

Description: The overall objective of this research project was to investigate phenomena involved in the filling of die cavities with molten alloy in the cold chamber die-casting process. It has long been recognized that the filling pattern of molten metal entering a die cavity influences the quality of die-cast parts. Filling pattern may be described as the progression of molten metal filling the die cavity geometry as a function of time. The location, size and geometric configuration of points of metal entry (gates), as well as the geometry of the casting cavity itself, have great influence on filling patterns. Knowledge of the anticipated filling patterns in die-castings is important for designers. Locating gates to avoid undesirable flow patterns that may entrap air in the casting is critical to casting quality - as locating vents to allow air to escape from the cavity (last places to fill). Casting quality attributes that are commonly flow related are non-fills, poor surface finish, internal porosity due to trapped air, cold shuts, cold laps, flow lines, casting skin delamination (flaking), and blistering during thermal treatment.
Date: March 15, 2004
Creator: Brevick, Jerald & Miller, R. Allen
Partner: UNT Libraries Government Documents Department

Development of a Software Framework for System-Level Carbon Sequestration Risk Assessment

Description: The overall purpose of this project was to identify, evaluate, select, develop, and test a suite of enhancements to the GoldSim software program, in order to make it a better tool for use in support of Carbon Capture and Sequestration (CCS) projects. The GoldSim software is a foundational tool used by scientists at NETL and at other laboratories and research institutions to evaluate system-level risks of proposed CCS projects. The primary product of the project was a series of successively improved versions of the GoldSim software, supported by an extensive User’s Guide. All of the enhancements were tested by scientists at Los Alamos National Laboratory, and several of the enhancements have already been incorporated into the CO{sub 2}-PENS sequestration model.
Date: February 28, 2013
Creator: Miller, R.
Partner: UNT Libraries Government Documents Department

Pressurized drift tubes scintillating fiber hadron calorimetry. Final report

Description: Under this contract members of the MSU high energy physics group constructed a full-scale Pressurized Drift Tube Chamber intended for the GEM muon system at the SSC. They achieved a position resolution of <90 {mu} over the full 5 m{sup 2} area of the detector. This resolution satisfied the GEM resolution requirements of <100 {mu} by a comfortable margin. Based on their SSC work they developed a new technique for creating wire supports in drift tubes with an overall placement accuracy of <20 {mu}. This technique requires only simple jigging and can be duplicated and operated at low cost. Also, they participated in the design and testing of a hadron calorimeter prototype for GEM. This work lead the authors to develop a semi-automatic welding machine to fuse together two plastic optical fibers. Copies of this machine are currently in use in the CDF endplug upgrade at Fermilab and additional copies are used widely in calorimeter and fiber-tracker construction.
Date: March 22, 1995
Creator: Bromberg, C.; Huston, J. & Miller, R.
Partner: UNT Libraries Government Documents Department

Evolution of the ARIES-I design in the ARIES and PULSAR projects

Description: After the completion of the ARIES-I study, the ARIES project generated additional tokamak conceptual designs with various levels of assumed advances in technology and physics and also updated models, ground rules, and designs of common subsystems. The ARIES-I design necessarily was updated repeatedly to incorporate the latest reactor advances and to obtain meaningful comparisons with subsequent designs in the ARIES and PULSAR series. The resulting series of ARIES-I designs are collected, and the underlying envolutionary changes are documented herein.
Date: December 1, 1995
Creator: Bathke, C.G. & Miller, R.L.
Partner: UNT Libraries Government Documents Department

Simulation and analysis of the plutonium oxide/metal storage containers subject to various loading conditions

Description: The structural and functional requirements of the Plutonium Oxide/Metal Storage Containers are specified in the Report ``Complex 21 Plutonium Storage Facility Material Containment Team Technical Data Report`` [Complex 21, 1993]. There are no existing storage containers designed for long term storage of plutonium and current codes, standards or regulations do not adequately cover this case. As there is no extensive experience with the long term (50+ years) storage of plutonium, the design of high integrity storage containers must address many technical considerations. This analysis discusses a few potential natural phenomena that could theoretically adversely affect the container integrity over time. The plutonium oxide/metal storage container consists of a primary containment vessel (the outer container), a bagless transfer can (the inner container), two vertical plates on top of the primary containment vessel, a circular plate (the flange) supported by the two plates, tube for gas sampling operations mounted at the center of the primary containment vessel top and a spring system being inserted in the cavity between the primary containment vessel and the cap of the bagless transfer can. The dimensions of the plutonium oxide/metal storage container assembly can be found in Figure 2-1. The primary container, the bagless transfer can, and all the attached components are made of Type 304L stainless steel.
Date: May 1, 1995
Creator: Gong, C. & Miller, R.F.
Partner: UNT Libraries Government Documents Department

Next linear collider test accelerator injector upgrade

Description: The Next Linear Collider Test Accelerator (NLCTA) being built at SLAC will integrate the new technologies of X-band Accelerator structures and RF systems for the Next Linear Collider, demonstrate multibunch beam-loading energy compensation and suppression of higher-order deflecting modes, and measure the dark current generated by RF field emission in the accelerator. The current injector being constructed for phase 1 of the NLCTA tests is a simple injector consisting of a gun with a 150 ns long pulse and X-band bunching and accelerating system. While the injector will provide average currents comparable to what is needed for NLC it will not provide the bunch structure since every X-band RF bucket will be filled. The injector upgrade will produce a similar bunch train as planned for NLC mainly a train of bunches 1.4 ns apart with 3 nC in each bunch up to 50 to 60 MeV. The bunching system for the upgrade is more elaborate than the current injector and the plan is to produce a bunch train right at the gun. The difference between the NLCTA injector upgrade and the planned injector for NLC is that the NLCTA injector will not have polarized beam and the accelerator sections are X-band rather than S-band. If the authors are able to produce beams comparable to the NLC requirements with the X-band injector then it should be easier to do with the S-band.
Date: August 1, 1995
Creator: Yeremian, A.D. & Miller, R.H.
Partner: UNT Libraries Government Documents Department

NLC electron injector beam dynamics

Description: The Next Linear Collider (NLC) being designed at SLAC requires a train of 90 electron bunches 1.4 ns apart at 120 Hz. The intensity and emittance required at the interaction point, and the various machine systems between the injector and the IP determine the beam requirements from the injector. The style of injector chosen for the NLC is driven by the fact that the production of polarized electrons at the IP is a must. Based on the successful operation of the SLC polarized electron source a similar type of injector with a DC gun and subharmonic bunching system is chosen for the NLC.
Date: October 1, 1995
Creator: Yeremian, A.D. & Miller, R.H.
Partner: UNT Libraries Government Documents Department

Analysis of the potential for a coal-fired power plant to cause visibility impairment in a National Park

Description: The visibility analysis examined potential impacts of the Healy Clean Coal Project (HCCP), a proposed 50-MW coal-fired power plant to be built adjacent to the existing 25-MW Healy Unit 1 (a conventional pulverized-coal unit) in Healy, Alaska, about 6 km north of Denali National Park. The analysis used the PLUVUE I visibility model to calculate ambient concentrations of species in the plume with potential to cause visible effects. The optical effects were determined in separate calculations when the sun was within about 10 {degree} of the horizon, in the winter. Results indicated that almost all the potential impact would be caused by NO{sub x}. Analysis of the number of daytime hours per year that the HCCP plume would be perceptible from the Visitor Access Center, shows that the predicted number of hours is extremely low for the base case: 2 hours for the north sight path, 2 hours for the south sight path, and a total of 2 hours. Sensitivity analysis shows more sensitivity to changing the perceptibility threshold than extending the sight paths. Cumulative visibility impacts of air emissions resulting from the simultaneous operation of the HCCP and Healy Unit No. 1 were also evaluated; results show that the percentage of hours affected is much less than 1% of daytime hours during the year.
Date: June 1, 1995
Creator: Richards, L.W. & Miller, R.L.
Partner: UNT Libraries Government Documents Department

Production reactor disposal on the Hanford site

Description: One of the many restoration challenges for the Hanford Site is the disposal of eight plutonium production reactors inactive since 1971. In order to minimize environmental and public health and safety impacts disposal alternatives were evaluated in an Environmental Impact Statement (EIS). Alternatives considered were no action, immediate one-piece removal, safe storage followed by deferred one- piece removal, safe storage followed by deferred dismantlement, and in-situ decommissioning. Evaluation of the EIS by the US Department of Energy resulted in the selection of the safe storage followed by one-piece removal alternative, which is discussed in this report.
Date: December 1, 1995
Creator: Romano, T. & Miller, R.L.
Partner: UNT Libraries Government Documents Department

Effects of Remote Drop and Pumpdown Placement on Cellular Concrete

Description: Abstract: The hazards to the public posed by abandoned mine shafts are well documented. As private development encroaches on previously mined areas, the potential for fatalities and serious injuries from abandoned mine shafts increases. The U.S. Bureau of Mines has conducted research into cellular concrete as a material for sealing these openings. The current work involves testing the characteristics of cellular concrete before and after it had been pumped or dropped from different heights into a simulated mine shaft. Cellular concrete was pumped vertically up to and subsequently dropped from heights of 18 and 37 m into concrete forms. Wet density measurements were made at multiple sampling points in the test circuit. Air content determinations and uniaxial compressive strength testing were conducted. Research results showed significant loss in air content and changes in the characteristics of cellular concrete during pumping or dropping from various heights. Recommendations on effective use of cellular concrete for sealing abandoned mine shafts are made.
Date: 1995
Creator: Boreck, D. L. & Miller, R. E.
Partner: UNT Libraries Government Documents Department

Comparative evolution of the recA gene of surface and deep subsurface microorganisms (an evolutionary clock of intermediate rate). Final report

Description: Because of the ability of the recA protein product to maintain both DNA integrity and increase genetic diversity, this gene may be essential to the survival of microorganisms following the damaging effects of numerous environmental stresses such as exposure to solar UV radiation, exposure to gamma radiation, starvation, and changing environments. While the various activities and amino-acid sequence of recA have been highly conserved among the eubacteria and archaea, little is known as to whether a strict structure-function relationship has been conserved. In other words, are the same regions of this highly plastic, functionally heterogeneous protein involved in the same catalytic capacities throughout the bacterial kingdom? While it is reasonable to assume that this type of conservation has also occurred, we felt it necessary to test the assumption by demonstrating that mutations in different genera of bacteria which eliminate similar functions (i.e., lead to similar phenotypes) are caused by changes in the amino-acid sequence in the same regions of their recA proteins. Therefore, we located the changes in nucleotide sequence in two recA mutants of P. aeruginosa which displayed mutant phenotypes in recombination and UV resistance. Our assumption was that if structure-function relationships held, these mutations would be found in areas already identified as essential for the function of the E. coli recA protein.
Date: April 1, 1998
Creator: Miller, R.V.
Partner: UNT Libraries Government Documents Department