States

1987-88 Evaluation Topics Report to The State Board of Education (open access)

1987-88 Evaluation Topics Report to The State Board of Education

Report that evaluates the effects of the Texas Council on Vocational Education's Master Plan, which intended to help graduated high school students be better prepared for entering the work force.
Date: June 11, 1988
Creator: Texas Council on Vocational Education
Object Type: Report
System: The Portal to Texas History
Experiment Data Report for Multirod Burst Test (MRBT) Bundle B-6 (open access)

Experiment Data Report for Multirod Burst Test (MRBT) Bundle B-6

A report regarding experiment data for a multirod burst test, to investigate cladding deformation in the alpha-plus-beta-Ziracloy temperature range under light-water-reactor (LWR) loss-of-coolant accident (LOCA) conditions."
Date: June 11, 1984
Creator: Chapman, R. H.; Longest, A. W. & Crowley, J. L.
Object Type: Report
System: The UNT Digital Library
Flow and plasticity via nonequilibrium molecular dynamics (open access)

Flow and plasticity via nonequilibrium molecular dynamics

The viscous flow of fluids and the plastic flow of solids, such as metals, are interesting from both the practical and the theoretical points of view. Atomistic molecular dynamics simulations provide a way of visualizing and understanding these flows in a detailed microscopic way. Simulations are necessarily carried out at relatively high rates of strain. For this reason they are ideally suited to the study of nonlinear flow phenomena: normal stresses induced by shear deformation, stress rotation, and the coupling of stress with heat flow, for instance. The simulations require appropriate boundary conditions, forces, and equations of motion. Newtonian mechanics is relatively inefficient for this simulation task. A modification, Nonequilibrium Molecular Dynamics, has been developed to simulate nonequilibrium flows. By now, many high-strain-rate rheological studies of flowing (viscous) fluids and (plastic) solids have been carried out. Here I describe the new methods used in the simulations and some results obtained in this way. A three-body shear-flow exercise is appended to make these ideas more concrete.
Date: June 11, 1984
Creator: Hoover, W. G.
Object Type: Article
System: The UNT Digital Library
Framework for Analyzing Safeguards Alarms and Response Decisions (open access)

Framework for Analyzing Safeguards Alarms and Response Decisions

This paper describes a quantitative approach to help evaluate and respond to safeguards alarms. These alrms may be generated internally by a facility's safeguards systems or externally by individuals claiming to possess stolen Special Nuclear Material (SNM). This approach can be used to identify the most likely cause of an alarm - theft, hoax, or error - and to evaluate alternative responses to alarms. Possible responses include conducting investigations, initiating measures to recover stolen SNM, and replying to external threats. Based on the results of each alarm investigation step, the evaluation revises the likelihoods of possible causes of an alarm, and uses this information to determine the optimal sequence of further responses. The choice of an optimal sequence of responses takes into consideration the costs and benefits of successful thefts or hoaxes. These results provide an analytical basis for setting priorities and developing contingency plans for responding to safeguards alarms.
Date: June 11, 1982
Creator: Al-Ayat, R. A.; Judd, B. R. & McCord, R. K.
Object Type: Article
System: The UNT Digital Library
Fusion Breeder Program interim report (open access)

Fusion Breeder Program interim report

This interim report for the FY82 Fusion Breeder Program covers work performed during the scoping phase of the study, December, 1981-February 1982. The goals for the FY82 study are the identification and development of a reference blanket concept using the fission suppression concept and the definition of a development plan to further the fusion breeder application. The context of the study is the tandem mirror reactor, but emphasis is placed upon blanket engineering. A tokamak driver and blanket concept will be selected and studied in more detail during FY83.
Date: June 11, 1982
Creator: Moir, R.; Lee, J. D. & Neef, W.
Object Type: Report
System: The UNT Digital Library
Initial performance parameters on FXR (open access)

Initial performance parameters on FXR

Construction of the new flash x-ray induction LINAC (FXR) at Lawrence Livermore National Laboratory has been completed. Initial tuning of the machine has produced stable current pulses in excess of 2 kA at the design energy of 20 MeV, with an 80 ns FWHM pulse width, producing single-pulse radiation doses near 500 Roentgen at one meter from the target. The electronic spot size on the bremsstrahlung target is estimated at 3 to 5 mm. In this paper we will discuss the basic FXR design; running-in and tuning of the machine; emittance measurements; beam stability; switch gap synchronization; and measurements of the radiation dose and angular distribution.
Date: June 11, 1982
Creator: Kulke, Bernhard; Innes, Thomas G.; Kihara, Ronald & Scarpetti, Raymond D.
Object Type: Article
System: The UNT Digital Library
Motor control and position sensing standards: a selection guide and suggestions for new designs (open access)

Motor control and position sensing standards: a selection guide and suggestions for new designs

The purpose of this text is to attempt to outline and describe the standard drive and readout methods which are available as systems or modules that can be used to control motor driven dievices.
Date: June 11, 1983
Creator: Schoo, D.P.
Object Type: Report
System: The UNT Digital Library

[MRBT Bundle B-6 Transient Test and Posttest Deformation Data]

Computer-generated graphical and tabular presentations of transient test and posttest deformation data for Multirod Burst Test (MRBT) Bundle B-6 (see pages 131-141 of report). "The primary objective of this 8 x 8 multirod burst test was to investigate cladding de-formation in the alpha-plus-beta-Zircaloy temperature range under simulated light-water-reactor (LWR) loss-of-coolant accident (LOCA) conditions. B-6 test conditions simulated the adiabatic heatup (reheat) phase of an LOCA and produced very uniform temperature distributions." - from Abstract
Date: June 11, 1984
Creator: Oak Ridge National Laboratory. Engineering Technology Division.
Object Type: Dataset
System: The UNT Digital Library
Multipurpose 5-MeV linear induction accelerator (open access)

Multipurpose 5-MeV linear induction accelerator

Although linear induction accelerators (LIAs) are quite reliable by most standards, they are limited in repeating rate, average power, and reliability because the final stage of energy delivery is based on spark gap performance. In addition, they have a low duty factor of operation. To provide a higher burst rate and greater reliability, the researchers used new technology to develop a magnetic pulse compression scheme that eliminates all spark gaps and exceeds requirements. The paper describes the scheme. The magnetic drive system can be tailored to drive induction cells from a few kA to over 10 kA at 500 kV, with average beam power levels in the megawatts. This new 5-MeV, 2.5-kA LIA under construction at the Lawrence Livermore National Laboratory (LLNL) will be used for the development of high brightness sources and will provide a test bed for the new technology, which should lead to LIAs that surpass the radio frequency linacs for efficiency and reliability, as well as fit other industrial applications, such as sewage sterilization.
Date: June 11, 1984
Creator: Birx, D.L.; Hawkins, S.A.; Poor, S.E. & Reginato, L.L. Smith, M.W.
Object Type: Article
System: The UNT Digital Library
Parametric economic studies for inertial confinement fusion electric power plants (open access)

Parametric economic studies for inertial confinement fusion electric power plants

We have conducted parametric economic studies for inertial confinement fusion (ICF) electric power plants using an economic model to estimate the cost of electricity. We found that the economy of scale of the reactor is an important factor in determining the combination of target gain, driver efficiency, and electric conversion efficiency required for an economically competitive system. A strong economy of scale allows a significant reduction in these performance parameters for a given cost of electricity. The degree of reduction is dependent, however, on the maximum achievable chamber pulse rate.
Date: June 11, 1986
Creator: Meier, W. R. & Hogan, W. J.
Object Type: Article
System: The UNT Digital Library
Systematic efficiency enhancement in Monte Carlo applications. Final progress report, July 1, 1976-January 31, 1980 (open access)

Systematic efficiency enhancement in Monte Carlo applications. Final progress report, July 1, 1976-January 31, 1980

Research performed under the grant period has been undertaken as part of the principal investigator's long-term efforts to develop new, more efficient estimators for application to a wide variety of practical problems. Two rather different approaches have characterized the work: (1) the use of a multistage analysis (1) to optimize the efficiencies (variances) of families of estimating random variables in a traditional statistical Monte Carlo framework, and (2) the development of parallel quasi-random sampling techniques and corresponding deterministic error bounds.
Date: June 11, 1980
Creator: Spanier, J.
Object Type: Report
System: The UNT Digital Library
Technology development for high power induction accelerators (open access)

Technology development for high power induction accelerators

The marriage of Induction Linac technology with Nonlinear Magnetic Modulators has produced some unique capabilities. It appears possible to produce electron beams with average currents measured in amperes, at gradients exceeding 1 MeV/meter, and with power efficiencies approaching 50%. A 2 MeV, 5 kA electron accelerator has been constructed at the Lawrence Livermore National Laboratory (LLNL) to demonstrate these concepts and to provide a test facility for high brightness sources. The pulse drive for the accelerator is based on state-of-the-art magnetic pulse compressors with very high peak power capability, repetition rates exceeding a kilohertz and excellent reliability.
Date: June 11, 1985
Creator: Birx, D.L. & Reginato, L.L.
Object Type: Article
System: The UNT Digital Library
Tensile strength as a function of thermal history of Inconel 718 and Inconel 625 alloys for glass-ceramic headers (open access)

Tensile strength as a function of thermal history of Inconel 718 and Inconel 625 alloys for glass-ceramic headers

Tensile strength tests were conducted on Inconel 718 specimens following a variety of heat treatments, and on as-received and heat-treated specimens of Inconel 625. A heat treatment cycle for Inconel 718 was found that represents an acceptable compromise between a thermal cycle that yields the strongest metal and one that least taxes a glass-ceramic material to which the Inconel 718 is bonded. Heat treating resulted in a moderate decrease in the tensile strength of the as-received Inconel 625.
Date: June 11, 1982
Creator: Rey, M. C. & Henderson, W. R.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: JM-332 (open access)

Texas Attorney General Opinion: JM-332

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification: Circumstances under which a county may dispose of abandoned rights-of-way.
Date: June 11, 1985
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Parks & Wildlife News, June 11, 1980 (open access)

Texas Parks & Wildlife News, June 11, 1980

Weekly newsletter discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.
Date: June 11, 1980
Creator: Texas. Parks and Wildlife Department.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Preventable Disease News, Volume 48, Number 23, June 11, 1988 (open access)

Texas Preventable Disease News, Volume 48, Number 23, June 11, 1988

Newsletter of the Texas Bureau of Disease Control and Epidemiology discussing the news, activities, and events of the organization and other information related to health in Texas.
Date: June 11, 1988
Creator: Texas. Bureau of Disease Control and Epidemiology.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 7, Number 43, Pages 2221-2302, June 11, 1982 (open access)

Texas Register, Volume 7, Number 43, Pages 2221-2302, June 11, 1982

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: June 11, 1982
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 10, Number 45, Pages 1879-1948, June 11, 1985 (open access)

Texas Register, Volume 10, Number 45, Pages 1879-1948, June 11, 1985

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: June 11, 1985
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Turkey Poults: For Week Ending June 6, 1981 (open access)

Texas Turkey Poults: For Week Ending June 6, 1981

Weekly report of the Texas Crop and Livestock Reporting Service on turkey poult numbers in Texas and compared with other states. It includes compiled statistics across six consecutive weeks during two years for turkey eggs set and poults hatched.
Date: June 11, 1981
Creator: Texas Crop and Livestock Reporting Service
Object Type: Report
System: The Portal to Texas History
Thermal analysis of the forced cooled conductor for the TF (toroidal field) superconducting coils in the TIBER II ETR design (open access)

Thermal analysis of the forced cooled conductor for the TF (toroidal field) superconducting coils in the TIBER II ETR design

The Tokamak Ignition/Burn Experimental Reactor (TIBER) is being designed to provide nuclear testing capabilities for first wall and blanket design concepts. The baseline design for TIBER II is to provide steady-state nuclear burn capabilities. These objectives must be met using reactor relevant components, such as state-of-the-art current drive schemes coupled with superconducting toroidal field (TF) and poloidal field (PF) coils. The design is also constrained to be cost effective, which forces the machine to be as small as possible. This last constraint limits the nuclear shielding in TIBER. Therefore, the TF coils will have a high nuclear heat load of up to 4.5 kW per coil. The cooling scheme and the thermal analysis for this design are presented.
Date: June 11, 1987
Creator: Kerns, J. A.; Slack, D. S. & Miller, J. R.
Object Type: Article
System: The UNT Digital Library
Use of magnetic compression based on amorphous alloys as a drive for induction linacs (open access)

Use of magnetic compression based on amorphous alloys as a drive for induction linacs

In anticipation of current and future needs for the Particle Beam Program and other programs at the Lawrence Livermore National Laboratory, we are continuing efforts in the development of high-repetition-rate magnetic pulse compressors that use ferromagnetic metallic glasses, both in the linear and very high saturation rates. These devices are ideally suited as drivers for linear induction accelerators, where duty factor or average repetition rates (hundred of hertz) requirements exceed the parameters that can be achieved by pulse compression using spark gaps. The technique of magnetic pulse compression has been with use for several decades, but relatively recent developments in rapidly quenched magnetic metals of very thin cross sections, has led to the development of state-of-the-art magnetic pulse compressors with very high peak power, repetition rates, and reliability. This paper will describe results of recent experiments and the relevant electrical and mechanical properties of magnetic pulse compressors to achieve high efficiency and reliability.
Date: June 11, 1984
Creator: Birx, D. L.; Cook, E. G.; Hawkins, S. A.; Poor, S. E.; Reginato, L. L.; Schmidt, J. A. et al.
Object Type: Article
System: The UNT Digital Library
Utility Monitoring for the Antiproton Source (open access)

Utility Monitoring for the Antiproton Source

The purpose of the utility portion of the FIRUS system is to alert humans in the main control room, at Phillips farm, and in building 10 control room when either environmental conditions are unhealthy for antiproton source devices, or electrical or mechanical equipment is malfunctioning. When first envisioned, the FIRUS system consisted of the following equipment: (1) 2 FIRUS mini-computers (wall mounted, 1 fire, 1 utility); (2) emergency power supply (also wall mounted); (3) coax hardline communication cable; (4) Junction boxes; (5) contact points and analog transducers; (6) three-pair 18 gage shielded cable; and (7) silent printer. Each mini can monitor 16 contact points or 15 analog points or a combination of contact and analog points. Each contact point can be more than one physical point if the points are wired in series. An alarm then indicates anyone of a group of points has opened. The following devices/quantities are proposed to be monitored by the utility portion of the FIRUS system: (1) sump pumps; (2) LCW (Low Conductivity Water); (3) auxiliary generator; (4) service building temperatures; (5) stub room/tunnel temperature; and (6) stub room/tunnel humidity. After the number of quantities to be monitored (see table I) was determined, it was …
Date: June 11, 1984
Creator: McConnell, D.
Object Type: Report
System: The UNT Digital Library