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D-0 South End Cap Calorimeter Cold Test Results
The South endcap calorimeter vessel was moved into Lab A on Sept. 18, 1990. A cooldown of the pressure vessel with liquid nitrogen was performed on Sept. 26 to check the vessel's integrity. With the pressure vessel cold, the insulating vacuum was monitored for leaks. Through out the testing, the insulating vacuum remained good and the vessel passed the test. The cold test was carried out per the procedures of D-Zero engineering note 3740.220-EN-250. The test was very similar to the cold test performed on the Central Calorimeter in October of 1987. The test of the ECS was performed in the same manner using the same equipment as the ECN cold test. Reference D-Zero engineering notes 3740.210-EN-122, 3740.000-EN-I07, and 3740.210-EN-II0 for information about the CC cold test. Reference EN-260 for the results of the ECN cold test. The insulating vacuum space was pumped on while equipment was being connected to the pressure vessel. Two hours after starting to pump with the blower the vacuum space pressure was at about 40 microns. The pumping continued overnight (another 16 hours). In the morning the pressure was 11.5 microns. A rate of rise test was performed. With the pump valved off, the pressure …
Date:
November 26, 1990
Creator:
Rucinski, R.
Object Type:
Report
System:
The UNT Digital Library
2-D Axisymmetric Line Transport
The methods used in the ALTAIR code for computing the transfer of spectral line radiation in two-dimensional axially-symmetric geometry are described. ALTAIR uses a variable-Eddington-tensor approach, in which the transfer equation of non-coherent line scattering is written in moment form, and the moments are closed with an assumed tensor relating the monochromatic pressure tensor and energy density; this Eddington tensor is obtained self-consistently using an accurate angle-dependent solution of the transfer equation. The finite element method for solving the moment system, and the discontinuous finite element method for solving the S{sub n} equation of transfer are described. Two applications of the method are discussed: line formation in uniform cylinders with different length-diameter ratios, and monochromatic transfer on an irregular x-y mesh (the Mordant test problem). 13 refs., 2 figs.
Date:
November 20, 1990
Creator:
Castor, John I.; Dykema, Pieter G. & Klein, Richard I.
Object Type:
Article
System:
The UNT Digital Library
3 Dimensional radiation transport in dispersive media
In plasmas the collective motion of free electrons affects the propagation of radiation by bending the light ray trajectory. The closer the light wave frequency is to the electron plasma frequency in value, the more pronounced the effect. We will present the results of radiation transport calculations in 3 spatial dimensions in the refractive plasma environment and compare the calculation to one done where the ray bending has been neglected (straight line ray paths). We also present the numerical method used for the refractive transport. 4 refs., 5 figs.
Date:
November 1, 1990
Creator:
Mayle, R.W.
Object Type:
Article
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 19, No. 9, Ed. 1 Friday, November 2, 1990
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
November 2, 1990
Creator:
MacArthur, Hazel
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 19, No. 10, Ed. 1 Friday, November 9, 1990
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
November 9, 1990
Creator:
MacArthur, Hazel
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 19, No. 11, Ed. 1 Friday, November 16, 1990
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
November 16, 1990
Creator:
MacArthur, Hazel
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 19, No. 12, Ed. 1 Friday, November 30, 1990
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
November 30, 1990
Creator:
MacArthur, Hazel
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[1990 endorsed candidates performance printout]
Printout of election results from the Lesbian/Gay Political Coalition of Dallas displaying results of endorsed candidates.
Date:
November 1990
Creator:
Lesbian/Gay Political Coalition of Dallas
Object Type:
Text
System:
The UNT Digital Library
[1990 financial summaries]
Financial summary of the Lesbian/Gay Political Coalition of Dallas for November and December 1990 and a financial summary for all of 1990.
Date:
November 1990
Creator:
Lesbian/Gay Political Coalition of Dallas
Object Type:
Text
System:
The UNT Digital Library
1990 National Compensation Survey of Research and Development Scientists and Engineers
This report presents the results of the fourth in a new series of surveys of compensation and benefits for research and development (R D) scientists and engineers (S Es). The 1990 Survey represents the largest nationwide database of its kind, covering 104 establishments which provided data on almost 41,000 degreed researchers in the hard'' sciences. The fundamental nature of the survey has not changed: the focus is still on medium- and large-sized establishments which employ at least 100 degreed S Es in R D. The 1990 Survey contains data which cover about 18% of all establishments eligible to participate, encompassing approximately 18% of all eligible employees. As in the last three years, the survey sample constitutes a fairly good representation of the entire population of eligible establishments on the basis of business sector, geographic location, and size. Maturity-based analyses of salaries for some 34,000 nonsupervisory researchers are provided, as are job content-based analyses of more than 27,000 individual contributors and almost 5000 first level supervisors and division directors. Compensation policies and practices data are provided for 102 establishments, and benefits plans for 62 establishments are analyzed.
Date:
November 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
3D Particle Simulation of Beams Using the Warp Code: Transport Around Bends
WARP is a discrete-particle simulation program which was developed for studies of space charge dominated ion beams. It combines features of an accelerator code and a particle-in-cell plasma simulation. The code architecture, and techniques employed to enhance efficiency, are briefly described. Current applications are reviewed. In this paper we emphasize the physics of transport of three-dimensional beams around bends. We present a simple bent-beam PIC algorithm. Using this model, we have followed a long, thin beam around a bend in a simple racetrack system (assuming straight-pipe self-fields). Results on beam dynamics are presented; no transverse emittance growth (at mid-pulse) is observed. 11 refs., 5 figs.
Date:
November 30, 1990
Creator:
Friedman, A.; Grote, D. P.; Callahan, D. A.; Langdon, A. B. & Haber, I.
Object Type:
Article
System:
The UNT Digital Library
3D simulations of axially confined heavy ion beams in round and square pipes
We have been using the 3d PIC code WARP6 to model the behavior of beams in a heavy ion induction accelerator; such linacs are candidates for an ICF driver. Improvements have been added to the code to model an axially confined beam using comoving axial electric fields to simulate the confining ears'' applied to the accelerating pulses in a real system. We have also added a facility for modeling a beam in a round pipe, applying a capacity matrix to each axial Fourier mode in turn. These additions are described along with results, such as the effect of pipe shape on the beam quality degradation from quadrupole misalignments. 4 refs., 6 figs., 1 tab.
Date:
November 30, 1990
Creator:
Grote, D. P.; Friedman, A. (Lawrence Livermore National Lab., CA (USA)) & Haber, I. (Naval Research Lab., Washington, DC (USA))
Object Type:
Article
System:
The UNT Digital Library
Abiotic immobilization/detoxification of recalcitrant organics
In contrast to many remedial techniques that simply transfer hazardous wastes from one part of the environment to another (e.g., off-site landfilling), in situ restoration may offer a safe and cost-effective solution through transformation (to less hazardous products) or destruction of recalcitrant organics. Currently, the US Environmental Protection Agency and US Department of Energy are encouraging research that addresses the development of innovative alternatives for hazardous-waste control. One such alternative is biotic and abiotic immobilization and detoxification of polynuclear aromatic hydrocarbons (PNAs) as associated with the soil humification process. This paper discusses (1) the possibility of using abiotic catalysis (with manganese dioxide) to polymerize organic substances; (2) aspects associated with the thermodynamics and kinetics of the process, and (3) a simple model upon which analyses may be based. 36 refs., 7 figs., 3 tabs.
Date:
November 1, 1990
Creator:
Whelan, G. & Sims, R. C.
Object Type:
Article
System:
The UNT Digital Library
Accelerated Leach Test Development Program Annual Report: 1990
In FY 1989, a draft accelerated leach test for solidified waste was written. Combined test conditions that accelerate leaching were validated through experimental and modeling efforts. A computer program was developed that calculates test results and models leaching mechanisms. This program allows the user to determine if diffusion controls leaching and, if this is the case, to make projections of releases. Leaching mechanisms other than diffusion (diffusion plus source term partitioning and solubility limited leaching) are included in the program is indicators of other processes that may control leaching. Leach test data are presented and modeling results are discussed for laboratory scale waste forms composed of portland cement containing sodium sulfate salt, portland cement containing incinerator ash, and vinyl ester-styrene containing sodium sulfate. 16 refs., 38 figs., 5 tabs.
Date:
November 1990
Creator:
Fuhrmann, M.; Pietrzak, R. F.; Heiser, J.; Franz, E. M. & Colombo, P.
Object Type:
Report
System:
The UNT Digital Library
Activities of the National Academy of Sciences in relation to the Radiation Effects Research Foundation
None
Date:
November 1, 1990
Creator:
Edington, C.W.
Object Type:
Report
System:
The UNT Digital Library
Activities of the National Academy of Sciences in relation to the Radiation Effects Research Foundation. Progress report, April 1990--December 1990
None
Date:
November 1, 1990
Creator:
Edington, C. W.
Object Type:
Report
System:
The UNT Digital Library
Advanced design and modeling concepts for recombination x-ray lasers
Geometric, kinetic, and trapping issues, in short and ultrashort recombination x-ray lasers, are discussed. The design of a composite target consisting of a lasant strip on a plastic backing is described. Examples of modeling showing the effect of photon trapping and uncertainties in other physical processes on calculated gain coefficients are given. A simple and accurate expression for photon trapping in cylindrical geometry is presented. Recombination lasers that have the ground state as the lower laser state are shown to have small I{sub sat}'s and corresponding low efficiencies. Scaling laws for femtosecond laser-plasma interactions are presented. 19 refs.
Date:
November 29, 1990
Creator:
Eder, D.C.; Rosen, M.D.; Shephard, R.; Staffin, R.; Nash, J.K. & Keane, C.J.
Object Type:
Article
System:
The UNT Digital Library
Advanced development of particle beam probe diagnostic systems
This progress report covers the period starting with the approval to go ahead with the 2 MeV heavy ion beam probe (HIBP) for TEXT Upgrade to the submission of the grant renewal proposal. During this period the co-principal investigators, R. L. Hickok and T. P. Crowley have each devoted 45% of their time to this Grant. Their effort has been almost exclusively devoted to the design and fabrication of the 2 MeV HIBP system. The 1989 report that described the advantages of a 2 MeV HIBP for TEXT Upgrade compared to the existing 0.5 MeV HIBP and outlined the design of the 2 MeV system is attached as Appendix A. Since the major effort under the renewal proposal will be the continued fabrication, installation and operation of the 2 MeV system on TEXT Upgrade, we describe some of the unique results that have been obtained with the 0.5 MeV system on TEXT. For completeness, we also include the preliminary operation of the 160 keV HIBP on ATF. We present the present fabrication status of the 2 MeV system with the exception of the electrostatic energy analyzer. The energy analyzer which is designed to operate with 400 kV on the top …
Date:
November 1, 1990
Creator:
Hickok, R. L.; Crowley, T. P. & Connor, K. A.
Object Type:
Report
System:
The UNT Digital Library
Advanced liquid-metal-reactor development at ANL during the 1980s
The fundamental long-term rationale for the liquid-metal reactor (LMR) remains unchanged - to provide for resource extension by consuming the more abundant isotope of uranium. The design goals for the next generation of breeder reactors include a concerted effort to provide engineering solutions that can positively impact on the technical issues and on the public perception issues that harry the current generation of commercial power reactors. The work at Argonne National Laboratory since late 1983 has approached these design goals for the next-generation-reactor enterprise as a whole and has based the approach on a closed, fissile-self-sufficient, transuranic-self-consuming fuel cycle that employs a uranium/plutonium metallic alloy fuel form. Pyrometallurgically based reprocessing and remote injection casting fuel refabrication form the basis on which the closed fuel cycle is expected to provide low fuel cycle costs even on an incremental dedicated fuel cycle facility basis. Passive safety features that decouple reactor shutdown and decay heat removal from reliance on balance-of-plant equipment form the basis for reduced capital costs. Preapproved licensing form the basis for shorter and more predictable construction cycles. Incomplete fission product separation and incomplete uranium/plutonium separation of the product streams provide for a deterrent to subnational diversion. Finally, the waste management …
Date:
1990-11~
Creator:
Wade, David C.
Object Type:
Article
System:
The UNT Digital Library
Advanced methods for the computation of particle beam transport and the computation of electromagnetic fields and beam-cavity interactions
The University of Maryland Dynamical Systems and Accelerator Theory Group carries out research in two broad areas: the computation of charged particle beam transport using Lie algebraic methods and advanced methods for the computation of electromagnetic fields and beam-cavity interactions. Important improvements in the state of the art are believed to be possible in both of these areas. In addition, applications of these methods are made to problems of current interest in accelerator physics including the theoretical performance of present and proposed high energy machines. The Lie algebraic method of computing and analyzing beam transport handles both linear and nonlinear beam elements. Tests show this method to be superior to the earlier matrix or numerical integration methods. It has wide application to many areas including accelerator physics, intense particle beams, ion microprobes, high resolution electron microscopy, and light optics. With regard to the area of electromagnetic fields and beam cavity interactions, work is carried out on the theory of beam breakup in single pulses. Work is also done on the analysis of the high behavior of longitudinal and transverse coupling impendances, including the examination of methods which may be used to measure these impedances. Finally, work is performed on the …
Date:
November 1, 1990
Creator:
Dragt, Alex J. & Gluckstern, Robert L.
Object Type:
Report
System:
The UNT Digital Library
The Age, Volume [11], Number 11, November 1990
Monthly publication containing information related to Chambers County, Texas, including current events of the Chambers County Historical Commission, the Wallisville Heritage Park, and the Chambers County historical and genealogical societies; reprinted newspaper articles about county events and citizens; and historical news and records.
Date:
November 1990
Creator:
Wallisville Heritage Park (Organization)
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
[Agenda: Lesbian/Gay Political Coalition of Dallas meeting November 12, 1990]
An agenda from the Lesbian/Gay Political Coalition of Dallas for their November 12, 1990 meeting.
Date:
November 12, 1990
Creator:
Lesbian/Gay Political Coalition of Dallas
Object Type:
Text
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 115, No. 21, Ed. 1 Thursday, November 1, 1990
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
November 1, 1990
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 115, No. 22, Ed. 1 Thursday, November 8, 1990
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
November 8, 1990
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History