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RF Capture Simulation for Gold Ions in AGS
N/A
Date:
October 1, 2000
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Simulations of Bunch Merging in Booster
N/A
Date:
October 1, 2004
Creator:
Gardner, C. J.
System:
The UNT Digital Library
Simulation of Scraping on the AGS Beam Dump
N/A
Date:
October 28, 2013
Creator:
Gardner, C. J.
System:
The UNT Digital Library
ACTL: evaluated neutron activation cross section library-evaluation techniques and reaction index. [Tables, 10/sup -10/ to 20 MeV]
A library of evaluated neutron-induced activation cross sections (ACTL) was compiled. The library covers incident neutron energies from 10/sup -10/ to 20 MeV. General descriptions of the evaluation methods and an index to the evaluated cross sections are presented. 21 references.
Date:
October 17, 1978
Creator:
Gardner, M.A. & Howerton, R.J.
System:
The UNT Digital Library
Surface hydrology, sediment transport dynamics, and remote sensing of disturbed watersheds in a humid temperature region
The specific objectives of this research are to quantify relationships between surface spectral properties and infiltration capacity explore the interaction between surface hydrology and basin morphology, specifically drainage network morphology, and develop a comprehensive process-response model for drainage basin evolution. This research examines the response of the drainage network and drainage basin water discharge to changes in the dominant processes that control infiltration and runoff, namely macropore network development. Infiltration, the primary regulator of runoff, is analyzed with respect to surface spectral characteristics and drainage basin water discharge. Changes in basin discharge measured on a storm event basis in the field are supplemented with simulated discharge events using a distributed hydrologic model. The hydrologic model is evaluated and parameterized by means of a detailed sensitivity analysis. The response of drainage basin water discharge to charges in infiltration properties of minesoils, and the inferred runoff process, and drainage network morphology is examined. The threshold discharge, or stream power, for sediment entrainment and the implications for changes in sediment discharge through time is also discussed. Ritter and Gardner conclude with a process-response model for drainage basin evolution, with implications for natural drainage basin response to climate change. Finally, basic rainfall-runoff relationships developed …
Date:
October 1, 1991
Creator:
Gardner, T.W. & Miller, A.C.
System:
The UNT Digital Library
Booster Fault Study No. 17: Proton Beam on the D6 Septum Magnet
N/A
Date:
October 1, 2003
Creator:
Brown, K. A. & Gardner, C. J.
System:
The UNT Digital Library
Torsion Testing of Plutonium
Results of torsion tests to determine the shear properties of plutonium are presented. Data on torsion properties are tabulated. (J.R.D.)
Date:
October 21, 1960
Creator:
Gardner, H. R.
System:
The UNT Digital Library
Injection of large transverse emittance EBIS beams in booster
During the commissioning of EBIS beams in Booster in November 2010 and in April, May and June 2011, it was found that the transverse emittances of the EBIS beams just upstream of Booster were much larger than expected. Beam emittances of 11{pi} mm milliradians had been expected, but numbers 3 to 4 times larger were measured. Here and throughout this note the beam emittance, {pi}{epsilon}{sub 0}, is taken to be the area of the smallest ellipse that contains 95% of the beam. We call this smallest ellipse the beam ellipse. If the beam distribution is gaussian, the rms emittance of the distribution is very nearly one sixth the area of the beam ellipse. The normalized rms emittance is the rms emittance times the relativistic factor {beta}{gamma} = 0.06564. This amounts to 0.12{pi} mm milliradians for the 11{pi} mm milliradian beam ellipse. In [1] we modeled the injection and turn-by-turn evolution of an 11{pi} mm milliradian beam ellipse in the horizontal plane in Booster. It was shown that with the present injection system, up to 4 turns of this beam could be injected and stored in Booster without loss. In the present note we extend this analysis to the injection of …
Date:
October 10, 2011
Creator:
Gardner, C.
System:
The UNT Digital Library
NUSTART: A PC code for NUclear STructure And Radiative Transition analysis and supplementation
NUSTART is a computer program for the IBM PC/At. It is designed for use with the nuclear reaction cross-section code STAPLUS, which is a STAPRE-based CRAY computer code that is being developed at Lawrence Livermore National Laboratory. The NUSTART code was developed to handle large sets of discrete nuclear levels and the multipole transitions among these levels; it operates in three modes. The Data File Error Analysis mode analyzes an existing STAPLUS input file containing the levels and their multipole transition branches for a number of physics and/or typographical errors. The Interactive Data File Generation mode allows the user to create input files of discrete levels and their branching fractions in the format required by STAPLUS, even though the user enters the information in the (different) format used by many people in the nuclear structure field. In the Branching Fractions Calculations mode, the discrete nuclear level set is read, and the multipole transitions among the levels are computed under one of two possible assumptions: (1) the levels have no collective character, or (2) the levels are all rotational band heads. Only E1, M1, and E2 transitions are considered, and the respective strength functions may be constants or, in the case …
Date:
October 1, 1990
Creator:
Larsen, G. L.; Gardner, D. G. & Gardner, M. A.
System:
The UNT Digital Library
THE IMPACT PROPERTIES OF UNALLOYED PLUTONIUM
The effect of temperature on the unnotched and notched Charpy impact properties of plutonium was studied in the alpha, beta, gamma, and delta phases encompassing a temperature range of -43 to 330 deg C. Impact energies for unnotched specimens generally increased with increasing test temperature in the alpha and beta phases. Brittle failures were obtained in these phases. The specimen tested in the gamma phase did not fracture but bcnt in ofi U-shape and pulled through the anvil. lmpact energies for the Charpy V-notched specimens were much lower than for the unnotched spcc(mens.dt corresponding temperatures. Brittle failures were obtained in the alpha and beta phases; some ductility was evidenced in the gamma phase while the specimen tested in the delta phase did not fracture but bent in a U-shape. It was concluded that the beta phase is quite sensitive to both strain rate and notch effects. Fracture appearance in the alpha and beta phase is discussed from the standpoint of grain boundary effects and microcracking. (auth)
Date:
October 1, 1961
Creator:
Gardner, H.R.
System:
The UNT Digital Library
Application Of Biometrical Genetics Techniques To Irradiated And Non- Irradiated Populations Of Corn To Provide Information On Nature Of Gene Action Involved In The Inheritance Of Quantitative Traits And In Heterosis. Final Report, 1970.
The purpose of this research was to extend out quantitative genetic investigations into some of the more basic aspects of genetic variation and heterosis observed in irradiated and non- irradiated populations of corn in order to determine more precisely how genes do act and interact to produce their observed cumulative effects.
Date:
October 31, 1971
Creator:
Gardner, C O
System:
The UNT Digital Library
Application of Biometrical Genetic Techniques to Irradiated and Non- Irradiated Populations of Corn to Provide Information on Nature of Gene Action Involved in the Inheritance of Quantitative Traits and in Heterosis. Technical Progress Report, 1966--67.
This report talks about the Application of Biometrical Genetic Techniques to Irradiated and Non- Irradiated Populations of Corn to Provide Information on Nature of Gene Action Involved in the Inheritance of Quantitative Traits and in Heterosis.
Date:
October 31, 1967
Creator:
Gardner, C. O.
System:
The UNT Digital Library
Spherical diffusion of tritium from a point of release in a uniform unsaturated soil. A deterministic model for tritium migration in an arid disposal site
Tritium (Tr), when released as tritiated water at a point in a uniform and relatively dry soil, redistributes in both the liquid and vapor phases. The flux density of Tr in the liquid will exceed that in the vapor phase provided the water content is greater than approximately 15% of the total soil porosity. Thus Tr redistribution must be modeled recognizing transfer ``in parallel`` in both phases. The authors use the diffusion equation cast in spherical coordinates to analyze this problem in order to provide a basis for design of field experiments, and to offer observations on the long term behavior of such systems. The solution of the diffusion equation permits calculation of the evolution of profiles of Tr concentration, within and external to the sphere of released solution, assuming the initial concentration within this sphere to be uniform. The authors also predict the rate of advance of the maximum of Tr as it advances, and attenuates, in the soil. Calculations for the case of 1 million Curies of Tr diluted in 1 liter of water and released at a depth of 20 meters, and 200 meters above the water table, are demonstrated. If the soil has an initial water …
Date:
October 1, 1993
Creator:
Smiles, D. E.; Gardner, W. R. & Schulz, R. K.
System:
The UNT Digital Library
Booster Fault Study No. 16: Deuteron Beam on the B6 Dump
A report on the booster fault study carried out on January 22, 2003.
Date:
October 2003
Creator:
Ahrens, L. A.; Brown, K. A. & Gardner, C. J.
System:
The UNT Digital Library
The Determination of Chlorine in Polyurethane Plastic
Chlorine may be determined in polyurethane by gravimetric or spectrophotometric techniques. The sample is burned in a special combustion tube with two oxygen inlets, the products of combustion are absorbed in a solution containing sodium hydroxide and hydrogen peroxide, and the chlorine is measured either gravimetrically as silver chloride or spectrophotometrically using mercuric thiocyanate and ferric perchlorate. Eighteen determinations of cblorine in known solutions of sodium chloroacetate or perchloric acid gave an average recovery of 98.3% with a standard deviation of 2.8%. (auth)
Date:
October 1, 1959
Creator:
Henicksman, A. L.; VanKooten, E. H.; Gardner, R. D. & Ashley, W. H.
System:
The UNT Digital Library
The development and performance of a message-passing version of the PAGOSA shock-wave physics code
A message-passing version of the PAGOSA shock-wave physics code has been developed at Sandia National Laboratories for multiple-instruction, multiple-data stream (MIMD) computers. PAGOSA is an explicit, Eulerian code for modeling the three-dimensional, high-speed hydrodynamic flow of fluids and the dynamic deformation of solids under high rates of strain. It was originally developed at Los Alamos National Laboratory for the single-instruction, multiple-data (SIMD) Connection Machine parallel computers. The performance of Sandia`s message-passing version of PAGOSA has been measured on two MIMD machines, the nCUBE 2 and the Intel Paragon XP/S. No special efforts were made to optimize the code for either machine. The measured scaled speedup (computational time for a single computational node divided by the computational time per node for fixed computational load) and grind time (computational time per cell per time step) show that the MIMD PAGOSA code scales linearly with the number of computational nodes used on a variety of problems, including the simulation of shaped-charge jets perforating an oil well casing. Scaled parallel efficiencies for MIMD PAGOSA are greater than 0.70 when the available memory per node is filled (or nearly filled) on hundreds to a thousand or more computational nodes on these two machines, indicating that …
Date:
October 1, 1997
Creator:
Gardner, David R. & Vaughan, Courtenay T.
System:
The UNT Digital Library
CORCON-MOD3: An integrated computer model for analysis of molten core-concrete interactions. User`s manual
The CORCON-Mod3 computer code was developed to mechanistically model the important core-concrete interaction phenomena, including those phenomena relevant to the assessment of containment failure and radionuclide release. The code can be applied to a wide range of severe accident scenarios and reactor plants. The code represents the current state of the art for simulating core debris interactions with concrete. This document comprises the user`s manual and gives a brief description of the models and the assumptions and limitations in the code. Also discussed are the input parameters and the code output. Two sample problems are also given.
Date:
October 1, 1993
Creator:
Bradley, D. R.; Gardner, D. R.; Brockmann, J. E. & Griffith, R. O.
System:
The UNT Digital Library
Summary Technical Report for the Period July 1, 1955 to September 30, 1955
Progress is reported on the following investigations: pilot-plant evaluation of U ore concentrates; low-acid extraction of U; scrub-column operation, corrosion of reactor materials in sparge tanks containing UNH; effect of UO/sub 2/F/sub 2/ content on UF/sub 4/ reduction; thermal densification of UF/ sub 4/,; operation of the moving bed reactor; reduction of UF/sub 4/ with Mg; development of a mold insulator; preparation of Th (C/sub 2/O/sub 4/)/sub 2/ and ThCI/sub 4/; production of Th metal; ore resistant t transform ation of U; effect of H/sub 2/ content of slug canning behavior; centrifugal casting of slugs; determination of Zr and Mo in U alloys; and analysis of U and Th ores for rare earths. (W.L.H.)
Date:
October 17, 1955
Creator:
Simmons, J. W.
System:
The UNT Digital Library
Stratigraphy and Geologic Structure at the Chemical and Metallurgy (CMR) Building, Technical Area 3, Los Alamos National Laboratory
Nine shallow (c70 ft), closely spaced core holes were continuously cored in the upper units of the 1.22 Ma Tshirege Member of the Bandelier Tuff at Technical Area (TA)-3 of the Los Alamos National Laboratory. The goal of the investigation was to identify faults that may have potential for earthquake-induced surface rupture at the site of the Chemistry and Metallurgy Research (CMR) building, a sensitive Laboratory facility that houses nuclear materials research functions. The holes were located from 25 ft to 115 ft from the building perimeter. Careful mapping of Lithologic sequences in cores, supplemented with focused sampling for geochemical analyses, yielded high confidence in the accuracy of delineating buried contacts within the Tshirege Member. Geologic analysis and investigation of the trends of surfaces interpolated from contacts in the core holes using commercially available software helped infer minor faulting in the strata beneath the building. Results show that gently north-northeast-dipping beds underlie the CMR building. The tilted beds are faulted by two small, closely spaced, parallel reverse faults with a combined vertical separation of approximately 8 ft. The faults are inferred from lithologically and geochemically repeated sections of core at about 55-ft depth in hole SHB-CMR-6. The data from nearby …
Date:
October 1, 1998
Creator:
Lavine, Alexis; Krier, Donathan; Caporuscio, Florie & Gardner, Jamie
System:
The UNT Digital Library
Review of the geological and structural setting near the site of the proposed Transuranic Waste Facility (TRUWF) Technical Area 52 (TA-52), Los Alamos National Laboratory
Because of Los Alamos National Laboratory’s proximal location to active geologic structures, assessment of seismic hazards, including the potential for seismic surface rupture, must occur before construction of any facilities housing nuclear or other hazardous materials. A transuranic waste facility (TRUWF) planned for construction at Technical Area 52 (TA-52) provides the impetus for this report. Although no single seismic hazards field investigation has focused specifically on TA-52, numerous studies at technical areas surrounding TA-52 have shown no significant, laterally continuous faults exhibiting activity in the last 10 ka within 3,000 ft of the proposed facility. A site-specific field study at the footprint of the proposed TRUWF would not yield further high-precision data on possible Holocene faulting at the site because post-Bandelier Tuff sediments are lacking and the shallowest subunit contacts of the Bandelier Tuff are gradational. Given the distal location of the proposed TRUWF to any mapped structures with demonstrable Holocene displacement, surface rupture potential appears minimal at TA-52.
Date:
October 1, 2007
Creator:
Schultz-Fellenz, Emily S. & Gardner, Jamie N.
System:
The UNT Digital Library
Rest Mass of Fully Stripped Ions in RHIC: Updated Values
N/A
Date:
October 1, 2007
Creator:
Brown, K. A.; Gardner, C. & Thieberger, P.
System:
The UNT Digital Library
LOFT CIS Analysis S-5B Penetration 3" IA-296-AB.
Abstract: The 3" IA-296-AB line from the containment penetration S-5B was analyzed to ASME Code, Subsection NC (Class 2) criteria. This section of piping is part of the Containment Isolation System; the model considered the line from penetration S-5B outward through a series of elbows and through the third isolation valve. Results of this analysis show that the section of line described will meet Class 2 requirements if additional supports are installed at three locations, as described in the body of this report.
Date:
October 31, 1978
Creator:
Barry, W. J., Jr.
System:
The UNT Digital Library
Bibliography of the Technical Literature of the Materials Joining Group, Metals and Ceramics Division, 1951--June 1989
This document contains a listing of the written scientific information originating in the Materials Joining (formerly the Welding and Brazing Group), Metals and Ceramics Division, Oak Ridge National Laboratory during 1951 through June 1989. This registry of documents is as much as possible, in the order of issue date. A complete cross-referenced listing of the technical literature of the Metals and Ceramics Division is also available.
Date:
October 1989
Creator:
David, S. A.; Goodwin, G. M. & Gardner, K.
System:
The UNT Digital Library
Experimental Studies on the Kinetic Behavior of Water Boiler Type Reactors
The KEWB Program is devoted to the study of the dynamic behavior of homogeneous type research reactors. The objectives of this program include studies to develop better and more complete understanding of phenomena which contribute to the kinetic behavior and the inherent safety of the water boiler reactor. The approach to the objectives has heen to construct a prototype 50 kw homogeneous reactor with the necessary auxiliary apparatus and to study the transient behavior of the system as a function of the more significant parameters which affect this behavior. These include the amount of reactivity release, rate of reactivity release, initial core pressure, initial core temperature, initial reactor power, and void volume above the core. Data are plotted. (auth)
Date:
October 31, 1958
Creator:
Remley, M. E.; Flora, J. W.; Hetrick, D. L.; Muller, D. R.; Gardner, E. L.; Wimmer, R. E. et al.
System:
The UNT Digital Library