Characterizing W-2 SLSF experiment temperature oscillations using computer graphics. [Sodium Loop Safety Facility] (open access)

Characterizing W-2 SLSF experiment temperature oscillations using computer graphics. [Sodium Loop Safety Facility]

The W-2 SLSF (Sodium Loop Safety Facility) experiment was an instrumented in-reactor test performed to characterize the failure response of full-length, preconditioned LMFBR prototypic fuel pins to slow transient overpower (TOP) conditions. Although the test results were expected to confirm analytical predictions of upper level failure and fuel expulsion, an axial midplane failure was experienced. Extensive post-test analyses were conducted to understand all of the unexpected behavior in the experiment. (1) The initial post-test effort focused on the temperature oscillations recorded by the 54 thermocouples used in the experiment. In order to synthesize the extensive data records and identify patterns of behavior in the data records, a computer-generated film was used to present the temperature data recorded during the experiment.
Date: June 23, 1983
Creator: Smith, D. E.
Object Type: Article
System: The UNT Digital Library
Collider detector beam line test table: a structural analysis (open access)

Collider detector beam line test table: a structural analysis

The apparatus which sweeps calorimeter and endwall modules through the beam during testing is called a beam line test table. Because of rather stringent requirements for the physical positioning of the modules an analysis is done here to determine the modifications to the current test table design which will minimize deflections of the table under load.
Date: December 23, 1983
Creator: Leininger, M.B.
Object Type: Report
System: The UNT Digital Library
NOVANET: communications network for a control system (open access)

NOVANET: communications network for a control system

NOVANET is a control system oriented fiber optic local area network that was designed to meet the unique and often conflicting requirements of the Nova laser control system which will begin operation in 1984. The computers and data acquisition devices that form the distributed control system for a large laser fusion research facility need reliable, high speed communications. Both control/status messages and experimental data must be handled. A subset of NOVANET is currently operating on the two beam Novette laser system.
Date: May 23, 1983
Creator: Hill, J.R.; Severyn, J.R. & VanArsdall, P.J.
Object Type: Article
System: The UNT Digital Library
Economic impact of an improved methanol catalyst. [Forecasting to 2000] (open access)

Economic impact of an improved methanol catalyst. [Forecasting to 2000]

The economic future of methanol is reviewed in light of its potential uses as a substitute for traditional hydrocarbon fuels and feedstocks as well as some evolving new uses. Methanol's future market position will depend strongly on its production cost in comparison with competitive products. One promising way to reduce the production cost is by use of an improved catalyst in the process by which methanol is obtained from the feedstock - which can be either natural gas or a similar product such as synthesis gas from coal gasification. To estimate the potential cost savings with an improved catalyst, we have based our analysis on a recent study which assumed use of synthesis gas from underground coal gasification as a feedstock for making methanol. The improved catalyst we studied was an actinide oxide whose features include high tolerance to sulfur and heat, and a yield of about 4 mol% methanol per pass with a 2/1 mixture of H/sub 2//CO. We calculated the effect of this catalyst on methanol production costs in a 12,000-bbl/day plant. The result was a saving of from 1 cent to 2.5 cent per gallon on the total methanol synthesis cost of 23 cents per gallon (i.e., …
Date: June 23, 1983
Creator: Grens, J.; Borg, I.; Stephens, D. & Colmenares, C.
Object Type: Report
System: The UNT Digital Library
/sup 238/PuO/sub 2/ fines generation in radioisotopic heat sources (open access)

/sup 238/PuO/sub 2/ fines generation in radioisotopic heat sources

Fuel aging studies were performed on the fuel form (plutonium-238 dioxide and yttrium) used in the Milliwatt Generator Radioisotopic Heat Source to determine the possibility of fuel degradation and of the resultant generation of respirable fines. In addition to long-term thermal aging of the fuel, evaluations included the effects of thermal ramping of the aged fuel to 1000/sup 0/C and of impacting thermally hot (450/sup 0/C) heat sources at 150 m/sec after thermal aging.
Date: June 23, 1983
Creator: Teaney, P. E.
Object Type: Report
System: The UNT Digital Library
Optimized baffle and aperture placement in neutral beamlines (open access)

Optimized baffle and aperture placement in neutral beamlines

Most neutral beamlines contain an iron-core ion-bending magnet that requires shielding between the end of the neutralizer and this magnet. This shielding allows the gas pressure to drop prior to the beam entering the magnet and therefore reduces beam losses in this drift region. We have found that the beam losses can be reduced even further by eliminating the iron-core magnet and the magnetic shielding altogether. The required bending field can be supplied by current coils without the iron poles. In addition, placement of the baffles and apertures can affect the cold gas entering the plasma region and the losses in the neutral beam due to re-ionization. In our study we varied the placement of the baffles, which determine the amount of pumping in each chamber, and the apertures, which determine the beam loss. Our results indicate that a baffle/aperture configuration can be set for either minimum cold gas into the plasma region or minimum beam losses, but not both.
Date: November 23, 1983
Creator: Stone, R.; Duffy, T. & Vetrovec, J.
Object Type: Article
System: The UNT Digital Library
Seismic monitoring at The Geysers Geothermal Field, California (open access)

Seismic monitoring at The Geysers Geothermal Field, California

Two distinct clusters of microearthquakes have been identified at The Geysers, possibly relating to two independent pressure sinks resulting from steam production described by Lipman, and others (1977). Unlike earthquakes in the Maacama-Rodgers Creek fault zone to the south and west, earthquakes at The Geysers are confined to depths of less than 5 km. The present level of seismicity at The Geysers appears to be higher than the preproduction level and is higher and more continuous than the seismicity in the surrounding region. Earthquakes in the steam production zone at The Geysers resemble earthquakes in the surrounding region with regard to focal plane solutions, source characteristics and magnitude distribution (b slope). Subtle differences in earthquake characteristics may be resolved by analysis of more extensive data now being gathered in the region.
Date: May 23, 1983
Creator: Marks, S. M.; Ludwin, R. S.; Louie, K. B. & Bufe, C. G.
Object Type: Report
System: The UNT Digital Library
Measurement of critical temperature as a function of field (open access)

Measurement of critical temperature as a function of field

The critical temperature has been measured for various magnet conductors as a function of the perpendicular applied magnetic field. The isothermal environment was provided by a variable temperature cryostat which fits into the bore of a 10.0 tesla solenoid. The temperature gradient across the sample volume was measured to be less than 25 millikelvins. The superconducting the normal state transition was measured resistively, using sample current densities from 0.01 to 2 A/cm/sup 2/. The maximum applied magnetic field was 10.0 T and varied less than 0.5% in the sample volume. The critical transport current range of the samples measured was from tens to thousands of amperes in the presence of a 10.0 T perpendicular magnetic field at 4.2K.
Date: April 23, 1983
Creator: McInturff, A.D.; Ishibashi, K. & Heard, G.D.
Object Type: Report
System: The UNT Digital Library
Leaching study of nuclear melt glass: Part I (open access)

Leaching study of nuclear melt glass: Part I

Ground samples of three nuclear melt glasses from underground nuclear explosions at the Nevada Test Site (NTS) were leached at 25/sup 0/C with natural ground water from NTS. Using our dynamic single-pass flow-through leaching system we monitored the release of radionuclides from the glasses during 420 days of leaching. We continually flowed the ground water over the melt glass at flow rates of 185 ml/day for half of the samples and 34 ml/day for the rest. Leachate solutions were collected continuously, and composite samples, collected on days 1, 2, 3, 6, 11, 32, 38, 70, 120, 230 and 420, were analyzed using low-background Ge(Li) gamma spectrometers. For most of the radionuclides the leach rate decreased smoothly throughout the experiment. Except for /sup 95/Zr, /sup 144/Ce, and /sup 155/Eu, there was no difference between the fast (185 ml/day) and slow (34 ml/day) flow-rate leach rates. The measurable leach rates ranged from a high of 1 x 10/sup -2/ g-glass/m/sup 2/ day for /sup 22/Na (slow flow-rate, day 1 in glass No. 2) to a low of 1 x 6/sup -6/ g-glass/m/sup 2/ day for /sup 54/Mn (slow flow-rate, day 420 in glass No. 2). Most of the leach-rate values were about …
Date: February 23, 1983
Creator: Failor, R. A.; Coles, D. G. & Rego, J. A. H.
Object Type: Report
System: The UNT Digital Library
Method of forming a thin unbacked metal foil (open access)

Method of forming a thin unbacked metal foil

The present invention relates generally to metal foils and methods of making the same. More particularly, this invention pertains to the fabrication of very thin, unbacked metal foils.
Date: February 23, 1983
Creator: Duchane, D. V. & Barthell, B. L.
Object Type: Patent
System: The UNT Digital Library
Texas Register, Volume 8, Number 70, Pages 3771-3840, September 23, 1983 (open access)

Texas Register, Volume 8, Number 70, Pages 3771-3840, September 23, 1983

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: September 23, 1983
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 8, Number 94, Pages 5369-5442, December 23, 1983 (open access)

Texas Register, Volume 8, Number 94, Pages 5369-5442, December 23, 1983

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: December 23, 1983
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 8, Number 61, Pages 3261-3282, August 23, 1983 (open access)

Texas Register, Volume 8, Number 61, Pages 3261-3282, August 23, 1983

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: August 23, 1983
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
The analysis of decontaminated defense waste salt supernate for I-129 (open access)

The analysis of decontaminated defense waste salt supernate for I-129

A method is reported here for the analysis of I-129 in decontaminated defense waste salt solution at concentrations as low as 0.14 pCi/ml. Repeated analyses have been unable to confirm the presence of I-129 in decontaminated samples of Tank 24 supernate.
Date: February 23, 1983
Creator: Ryan, J. P.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: JM-18 (open access)

Texas Attorney General Opinion: JM-18

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; Whether House Bill No. 226 relating to reporting ownership of mineral interests severed from surface estate and to proceedings for abandonment of unreported mineral interests violates article I, section 19 of the Texas Constitution
Date: March 23, 1983
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-96 (open access)

Texas Attorney General Opinion: JM-96

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: Whether the decision in United States v. State of Texas, 695 F.2d 136 (5th Cir. 1983) prohibits application of gallonage tax to sales by Texas wholesalers to military installations
Date: November 23, 1983
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Transport in compact tori (open access)

Transport in compact tori

The parameter B/sub e//nr/sub p/ (here, B/sub e/ is applied magnetic field strength, nr/sub p/ is the plasma density-radius product) is proposed as a key parameter for spheromak heating studies. If B/sub e//nr/sub p/ is too large, increased magnetic fluctuations limit heating; low B/sub e//nr/sub p/ value results in excessive radiation losses. An optimum range appears to be B/sub e//nr/sub p/ approx. 1 to 5 x 10/sup -20/ Wb.
Date: February 23, 1983
Creator: Miley, G. H.
Object Type: Article
System: The UNT Digital Library
Organization and performance of the neutral beam system for the Tandem Mirror Experiment-Upgrade (TMX-U) (open access)

Organization and performance of the neutral beam system for the Tandem Mirror Experiment-Upgrade (TMX-U)

The Tandem Mirror Experiment-Upgrade (TMX-U) at Lawrence Livermore National Laboratory (LLNL) uses 24 neutral-beam injectors to heat and fuel the experimental plasmas. This system is unique because TMX-U operates four times more injectors than any other fusion experiment. These injectors deliver an average of 50 A (accel) at 17 keV for 75 ms. Source conditioning time has been reduced to approximately four days for the entire system after extended machine air cycles. TMX-U is also unique because it has 35 usable injector assemblies for the 24 power systems. This quantity of injectors makes possible the development of new hardware and injector modifications, and the reconditioning of damaged sources without affecting machine operation. Efficient operation of a system of this size requires coordinated interaction between the injector service groups and the physics organization. We describe the current state of TMX-U performance and the aspects of group interaction essential to a project of this size.
Date: November 23, 1983
Creator: Kane, R. J.; Hibbs, S. M.; Kerr, R. G. & Poulsen, P.
Object Type: Article
System: The UNT Digital Library
Design of the plasma current sensor diagnostic for MFTF-B (open access)

Design of the plasma current sensor diagnostic for MFTF-B

The Plasma Current Sensor (PCS) diagnostic includes large diamagnetic loops (DL) that fully encircle the plasma as well as small multi-turn pickup coils (PCs) located between the plasma and the superconducting magnets. Both types of sensors respond to changing magnetic flux linkages caused by plasma currents and are used to measure plasma diamagnetism, from which estimates of temperature and density can be made. The DLs are used in the central cell and Axicell regions, while the PCs are used in the Yin-yang regions where DLs are impractical. Other PCs are used in the central cell to detect axial plasma currents, to help tune trim coils in the transition cell and confirm theoretical estimates of radial diffusion limits. This paper describes the PCS diagnostic and presents the detailed mechanical and electrical designs.
Date: November 23, 1983
Creator: Goerz, D. A.; House, P. A. & Wells, C. W.
Object Type: Article
System: The UNT Digital Library
BPMO HISTOS plots (open access)

BPMO HISTOS plots

Early experience (1981-1982) with jittery position measurements in the CID (Collider Injector Development) and Sector 1 BPM (beam position monitor) system led us to ask whether the source of the observed noise was in the beam or in the BPM electronics. Prior to July, 1983, the signal from each BPM strip was individually processed. It occurred to us that the signal from each strip, when normalized by the sum of the signals from the two adjacent strips, made possible two independent measurements of the beam position in the plane containing the strip. When a single parameter is measured twice, one can look at the correlation of the measurements over a statistical sample of events. This will allow one to distinguish real parameter variations from measurement errors. In this case, a strong correlation in the two measurements from a given strip indicates beam jitter, whereas a lack of correlation indicates either that there is beam jitter in the normalizing plane or that the processing electronics is noisy in at least one channel. The five possible cases are illustrated. These plots are interpreted.
Date: August 23, 1983
Creator: Clendenin, J. & Williams, S.
Object Type: Report
System: The UNT Digital Library
Optimum operating temperature for accelerator diskloaded waveguide: test results from Sector 2 (open access)

Optimum operating temperature for accelerator diskloaded waveguide: test results from Sector 2

To keep the accelerator structures in proper tuned condition with variable applied RF power, the Cu-temperature of the structures should be kept constant. From the specifications in CN 102, we derive that a ..delta../PHI/ = +-10/sup 0/ per ten-foot structure would be permissible to stay within a ..delta..E/E of 0.5%. Further measurements should be performed to prove that all structures stay within this limit under the SLC operating conditions where the average RF power level will be in the order of ten times the average power used for the present test.
Date: September 23, 1983
Creator: Allen, M.; Millich, A. & Schwarz, H.
Object Type: Report
System: The UNT Digital Library
RHIC Magnetic Design Study (open access)

RHIC Magnetic Design Study

None
Date: November 23, 1983
Creator: H., Hahn
Object Type: Report
System: The UNT Digital Library
Comparison of Recommendations From Selected Education Reform Reports (open access)

Comparison of Recommendations From Selected Education Reform Reports

This report is about recommendations for improving American public elementary and secondary education.
Date: September 23, 1983
Creator: Jordan, K. Forbis
Object Type: Report
System: The UNT Digital Library
The Fortune 500: Name, Addresses and officers of the 500 Largest Industrial Corporations in the U.S. Ranked by Sales in 1982 (open access)

The Fortune 500: Name, Addresses and officers of the 500 Largest Industrial Corporations in the U.S. Ranked by Sales in 1982

This report lists The Fortune 500: Name, Addresses, and officers of the 500 Largest Industrial Corporations in the U.S. Ranked by Sales in 1982.
Date: May 23, 1983
Creator: Swanson, Winfield
Object Type: Report
System: The UNT Digital Library