State Purchasing and General Services Commission (open access)

State Purchasing and General Services Commission

Report over services, definitions, and general information for various divisions of the Texas State Purchasing and General Services Division. Divisions included: Executive Administration Division, Central Purchasing Division, Building and Property Services Division, Centralized Services Division, Automated Services Division, Telecommunications Services Division, and Facilities Planning and Construction Division.
Date: July 12, 1983
Creator: Texas. State Purchasing and General Services Commission.
Object Type: Report
System: The Portal to Texas History
AR coating with high damage threshold on SiO/sub 2/ glass. Final report (open access)

AR coating with high damage threshold on SiO/sub 2/ glass. Final report

The following experimental results are shown: (1) uniformity of AR coatings on Optosil and Sprasil provided by LLNL; (2) relation between cleaning methods and properties of AR coatings; (3) baking and sintering conditions of gel-derived films; (4) heat treatment of AR coating in O/sub 2/ flow.
Date: September 12, 1983
Creator: Toratani, H.; Kanamori, C.; Nakajima, S.; Nakagawa, K. & Izumitani, T.
Object Type: Report
System: The UNT Digital Library
Texas Preventable Disease News, Volume 43, Number 45, November 12, 1983 (open access)

Texas Preventable Disease News, Volume 43, Number 45, November 12, 1983

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: November 12, 1983
Creator: Texas. Bureau of Disease Control and Epidemiology.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Demonstration of in-tank sludge processing: Part 1, Aluminum dissolution, sludge washing and settling results (open access)

Demonstration of in-tank sludge processing: Part 1, Aluminum dissolution, sludge washing and settling results

In-tank sludge processing will reduce the scope and cost of the Defense Waste Processing Facility (DWPF). A full-scale demonstration of this process has recently been completed. This test established that aluminum dissolution and sludge washing can be accomplished in a high level waste tank. The Savannah River Laboratory had the responsibility of characterizing (physically and chemically) samples from the demonstration. This memo presents physical properties, aluminum concentration, and supernate inhibitor levels.
Date: July 12, 1983
Creator: Hamm, B. A.; Eibling, R. E. & Fowler, J. R.
Object Type: Report
System: The UNT Digital Library
Line-coincidence schemes for producing laser action at soft-x-ray wavelengths (open access)

Line-coincidence schemes for producing laser action at soft-x-ray wavelengths

Line-coincidence schemes for producing laser action in the wavelength regime 100-30A are reviewed. Schemes involving pumping of 2..-->..4 transitions in neon-like ions are singled out as particularly attractive.
Date: January 12, 1983
Creator: Chapline, George F.
Object Type: Article
System: The UNT Digital Library
Correlation of ultrasonic velocity and rock strength (open access)

Correlation of ultrasonic velocity and rock strength

Ultimate strength and shear wave velocity of dry, 50% saturated, and saturated Paintbrush tuff samples from the Nevada Test Site (NTS) are measured as a function of pressure up to 400 MPa. A linear relationship exists between the ultimate strength (tau) and shear modulus (..mu..) for the dry tuff at pressures from 0.1 to 20 MPa and from 100 to 300 MPa, with values of d tau/d..mu..; of about 1.25 x 10/sup -2/ and 2.6 x 10/sup -2/, respectively. At pressures between 20 and 100 MPa a linear relationship also exists with a much greater value of d tau/d..mu.., of about 9.9 x 10/sup -2/. For the half-saturated tuff, under undrained testing conditions, a similar linear relationship exists at pressures up to 20 MPa. At pressures between 20 and 300 MPa the data of the partially saturated tuff have too much scattering to deduce a meaningful relation. No such correlation can be found for the saturated tuff sample under undrained testing conditions. If similar relations could be found for other rock types and under other controlled experimental coditions, such as at a fixed pore fluid pressure (drained test) or temperature, then the results would be very valuable for the estimation …
Date: January 12, 1983
Creator: Lin, W.
Object Type: Report
System: The UNT Digital Library
Preliminary study of the positions of elements in LTR (open access)

Preliminary study of the positions of elements in LTR

A print-out (filename, Lebout Output, dated 07/14/83) was obtained which contains the LTR quad and bend magnet specifications actually used for final alignment. The format includes tooling ball data plus coordinates, 'X' 'Y' 'Z' in the SBO grid, defining the mechanical centers of the magnets.
Date: August 12, 1983
Creator: Hall, G.
Object Type: Report
System: The UNT Digital Library
Ground motion: frequency of occurrence versus amplitude of disturbing transient events (open access)

Ground motion: frequency of occurrence versus amplitude of disturbing transient events

Successful collider operation requires that ground motion not exceed certain tolerances. In this note it is pointed out that on occasion these tolerances are exceeded. The frequency of such events and their amplitudes, measured as a function of time of day, have been measured. An examination of the data leads one to conclude that most events are of cultural (i.e., man-made) origin. 2 references, 20 figures.
Date: September 12, 1983
Creator: Werner, K.L.
Object Type: Report
System: The UNT Digital Library
Evaluation of ion-energy spectrometers for use on MFTF (open access)

Evaluation of ion-energy spectrometers for use on MFTF

This report was originally written as part of the Physics Analysis Document for the End-Loss Ion Energy Spectrometer for MFTF. In the course of that analysis, we investigated many possibilities. We have decided that this survey of the different types of analyzers and detectors could be of use to others facing a similar choice. The Appendix covers a formalism developed for finding the trajectories of charged particles in constant, uniform, but otherwise arbitrary electric and magnetic fields.
Date: April 12, 1983
Creator: Falabella, S. & Grubb, D.P.
Object Type: Report
System: The UNT Digital Library
Design and construction of the vacuum vessel for the tandem Mirror Fusion Test Facility (open access)

Design and construction of the vacuum vessel for the tandem Mirror Fusion Test Facility

We have designed the MFTF-B vacuum vessel both to maintain the required vacuum environment and to structurally support the 42 superconducting magnets plus auxiliary internal and external equipment. The design calculations were greatly aided by computer models, which also speeded our redesign effort when the machine configuration was changed to the Axicelll MFTF-B this past year. Our field construction and erection effort should meet the July 1984 completion date for the vacuum vessel.
Date: August 12, 1983
Creator: Gerich, J.W.
Object Type: Article
System: The UNT Digital Library
Flywheel rotor and containment technology development, FY83 (open access)

Flywheel rotor and containment technology development, FY83

The Department of Energy decided to terminate the Flywheel Rotor and Containment Technology Development project during FY 1983. Activities this year included fabrication, inspection, and test evaluation of rotor and containment structures. A peak energy of 700 Wh was stored at an energy density of 70 Wh/kg. In cyclic tests, 10,000 cycles from design speed to half speed were logged without failure. The first test of a lightweight containment structure indicates the need for additional development. In complementary studies, production cost estimates were made for three flywheel designs. In a cooperative program with the University of Wisconsin, work began on construction of a flywheel/continuously variable transmission/heat engine car which promises fuel economy improvements of up to 100%. Suggestions are made for the direction of future work when interest in flywheel system reappears.
Date: September 12, 1983
Creator: Mohr, P. B. & Walter, C. E.
Object Type: Article
System: The UNT Digital Library
Vacuum measurements on the Tandem Mirror Experiment Upgrade (TMX-U) fusion experiment (open access)

Vacuum measurements on the Tandem Mirror Experiment Upgrade (TMX-U) fusion experiment

The gas inventory of the Tandem Mirror Experiment Upgrade (TMX-U) must be carefully controlled, if it is to successfully create various plasma configurations for thermal-barrier experiments designed to provide an improved performance for tandem-mirror experiments. This paper is a progress report on the calibration methods and pressure measurements of machine conditions deriving from recently improved neutral-beam gas control, and changes to the internal baffling geometry and the gettering system.
Date: August 12, 1983
Creator: Calderon, M. O.; Hunt, A. L.; Lang, D. D.; Nexsen, W. E.; Pickles, W. L. & Turner, W. C.
Object Type: Article
System: The UNT Digital Library
Silicon switch development for optical pulse generation in fusion lasers at Lawrence Livermore National Laboratory (open access)

Silicon switch development for optical pulse generation in fusion lasers at Lawrence Livermore National Laboratory

We have been developing a silicon photoconductive switch for use as a Pockels cell driver in the pulse generation systems of the fusion lasers Nova and Novette. The objective has been to make 10 kV switches repeatably and which are reliable on an operating system. We found that nonlinear phenomena in nearly intrinsic silicon caused excessive conduction at high voltage resulting in breakdown. Our experiments with doped material show that this problem can be eliminated, resulting in useful devices.
Date: July 12, 1983
Creator: Wilcox, R. B.
Object Type: Article
System: The UNT Digital Library
Reconnection in Spheromak formation and sustainment (open access)

Reconnection in Spheromak formation and sustainment

The Spheromak is a magnetic confinement device that is being explored in both the US and Japanese fusion programs. It is a member of the Compact Torus family of magnetic structures characterized by a set of closed, nested toroidal flux surfaces but without any coils, transformer cores, etc. protruding through the hole in the torus. The Speromak is closely elated to the Reversed Field Pinch (RFP) in that most of the magnetic field is produced by plasma currents flowing along the magnetic field lines (a near force free field) rather than by external coils. The Spheromak has magnetic field components of comparable strength in both the toroidal (azimuthal) and poloidal (in the plane perpendicular to the azimuthal unit vector) directions. The large internal magnetic energy in the Spheromak makes it rich in magnetohydrodynamic phenomena and reconnection, in particular, plays an important role in the formation, resistive decay and instability processes.
Date: December 12, 1983
Creator: Hammer, J. H.
Object Type: Article
System: The UNT Digital Library
Determination of the beta energy (E/sub max/) using thin window instruments (open access)

Determination of the beta energy (E/sub max/) using thin window instruments

The use of simple survey instruments for beta-energy analysis is complicated by large differences that exist in the beta spectra shapes. These spectral shapes are often complex and change continuously as the betas are absorbed in air. Changes are also caused by absorbing material between the source and the detector. One may frequently encounter a combination of beta energies, either from multiple emissions from a single isotope or from several isotopes in the sample being evaluated. There may also be monoenergetic conversion electrons present in the sample or low-energy X rays which are absorbed in a similar fashion to betas. Obviously, a complete analysis of compelx beta spectra cannot be performed using only survey instruments. We present two methods which will give the approximate E/sub max/ of the beta energy responsible for the most significant portion of the beta dose. Either technique should give adequate information about the beta spectra to provide necessary guidance for the health physics evaluation of the exposure.
Date: August 12, 1983
Creator: Hankins, D.E.
Object Type: Article
System: The UNT Digital Library
Recent results from the PEP4-TPC on quark fragmentation (open access)

Recent results from the PEP4-TPC on quark fragmentation

The physics goals for the PEP-4/PEP-9 experiment concentrate on two areas: the fragmentation properties of quarks and gluons produced in e+e- annihilation, and the investigation of hadron production in 2-photon collisions. Only the first of these topics is addressed. Despite the many successes of QCD in the description of deep inelastic reactions, the basic fragmentation process of quarks and gluons is not very well understood. This lack of knowledge has been shown to jeopardize precise test of QCD, such as the accurate determination of the strong coupling constant. With its ability to disentangle complex hadronic events and to identify most of the final state particles, the TPC allows new and more sensitive tests of fragmentation models. A brief description of the detector is given and particle identification by ionization energy loss is described. Next, the inclusive production of stable hadrons and of resonances is discussed, and limits on the inclusive production of fractional charged particles are given. A new analysis of long-range correlations in e+e- annihilation is given.
Date: November 12, 1983
Creator: Hofmann, W.
Object Type: Article
System: The UNT Digital Library
Large aperture optical switching devices (open access)

Large aperture optical switching devices

We have developed a new approach to constructing large aperture optical switches for next generation inertial confinement fusion lasers. A transparent plasma electrode formed in low pressure ionized gas acts as a conductive coating to allow the uniform charging of the optical faces of an electro-optic material. In this manner large electric fields can be applied longitudinally to large aperture, high aspect ratio Pockels cells. We propose a four-electrode geometry to create the necessary high conductivity plasma sheets, and have demonstrated fast (less than 10 nsec) switching in a 5x5 cm aperture KD*P Pockels cell with such a design. Detaid modelling of Pockels cell performance with plasma electrodes has been carried out for 15 and 30 cm aperture designs.
Date: December 12, 1983
Creator: Goldhar, J. & Henesian, M.A.
Object Type: Article
System: The UNT Digital Library
Beam-dump kicker magnets (open access)

Beam-dump kicker magnets

The beam-dump kicker magnets are located in the final focus region and, in conjunction with septum magnets, extract the beams after they have passed the interaction point (IP) and direct them to their respective dumps. Two schemes for these kickers have been under consideration; ferrite transmission line magnets utilizing technology common with damping rings and positron target kickers, and current loop magnets which are possible only for the dump kickers, where the rise time of the magnetic pulse can be comparatively longer; approximately 400 nanoseconds as compared with 50 nanoseconds for the others. A prototype ferrite kicker has been built and is undergoing tests. Since the current loop requires lower voltage and power plus some additional savings in cost, we decided to build and test a prototype. This note describes in detail an optimized design for the current loop magnets and their associated pulse circuitry.
Date: December 12, 1983
Creator: Bulos, F.; Odian, A. & Tomlin, B.
Object Type: Report
System: The UNT Digital Library
A Pyrovidicon-based Inspection System for Nuclear Reactor Safety (open access)

A Pyrovidicon-based Inspection System for Nuclear Reactor Safety

At the Savannah River Nuclear Facility irradiated assemblies are conveyed through the air from the reactor to a discharge/entry channel, where they are immersed in water. This paper addresses the monitoring of the temperature of these assemblies while they are in transit during the discharge cycle. To accomplish this, a remotely controlled and monitored radiation-hardened thermal imaging and alarm system was installed at each reactor. The paper will discuss the system concept and operation. The program for radiation hardening and testing this equipment will be reviewed.
Date: October 12, 1983
Creator: Lynam, E.C.
Object Type: Article
System: The UNT Digital Library
Containment barrier metals for high-level waste packages in a Tuff repository (open access)

Containment barrier metals for high-level waste packages in a Tuff repository

The Nevada Nuclear Waste Storage Investigations (NNWSI) Waste Package project is part of the US Department of Energy`s Civilian Radioactive Waste Management (CRWM) Program. The NNWSI project is working towards the development of multibarriered packages for the disposal of spent fuel and high-level waste in tuff in the unsaturated zone at Yucca Mountain at the Nevada Test Site (NTS). The final engineered barrier system design may be composed of a waste form, canister, overpack, borehole liner, packing, and the near field host rock, or some combination thereof. Lawrence Livermore National Laboratory`s (LLNL) role is to design, model, and test the waste package subsystem for the tuff repository. At the present stage of development of the nuclear waste management program at LLNL, the detailed requirements for the waste package design are not yet firmly established. In spite of these uncertainties as to the detailed package requirements, we have begun the conceptual design stage. By conceptual design, we mean design based on our best assessment of present and future regulatory requirements. We anticipate that changes will occur as the detailed requirements for waste package design are finalized. 17 references, 4 figures, 10 tables.
Date: October 12, 1983
Creator: Russell, E.W.; McCright, R.D. & O`Neal, W.C.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: JM-75 (open access)

Texas Attorney General Opinion: JM-75

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; Effective date of article 2372p-3, relating to regulation of bail bondsmen
Date: October 12, 1983
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-76 (open access)

Texas Attorney General Opinion: JM-76

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 faculty member at Southwest Texas State University may take vacation leave or lump sum payment for accrued vacation leave
Date: October 12, 1983
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: JM-77 (open access)

Texas Attorney General Opinion: JM-77

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 Coordinating Board has authority to approve college construction funded in part by ad valorem tax funds recieved under former article VII, section 17, of the Texas Constitution
Date: October 12, 1983
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Register, Volume 8, Number 26, Pages 1193-1234, April 12, 1983 (open access)

Texas Register, Volume 8, Number 26, Pages 1193-1234, April 12, 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: April 12, 1983
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History