Field shape measurements of prototype Main Injector dipole endpacks (open access)

Field shape measurements of prototype Main Injector dipole endpacks

Measurements of the transverse dependence of the flux on the symmetry plane were obtained on a series of endpacks mounted on a Main Injector prototype dipole. From these flux measurements, we determined the endfield shape, expressed in terms of normal harmonics, up to 14-pole. We describe the measurement and analysis procedure, and present the results for all endpacks that were tested. The final endpack (number 10) has a sextupole, normalized to the body, of +0.167 [plus minus] .072 units, and the relative field shape deviates by [lt] 1.2 units relative to the on-axis field strength over the range [vert bar]x[vert bar] [lt] 2.0[double prime]. These measurements indicate that Endpack 10 meets the requirements for the Main Injector dipole.
Date: January 6, 1993
Creator: Glass, H. D.; Brown, B. C. & Harding, D. J.
Object Type: Report
System: The UNT Digital Library
Texas Register, Volume 18, Number 59, Pages 5157-5273, August 6, 1993 (open access)

Texas Register, Volume 18, Number 59, Pages 5157-5273, August 6, 1993

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 Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents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 6, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 18, Number 52, Pages 4357-4424, July 6, 1993 (open access)

Texas Register, Volume 18, Number 52, Pages 4357-4424, July 6, 1993

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 Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents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: July 6, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Texas Register, Volume 18, Number 27, Pages 2233-2331, April 6, 1993 (open access)

Texas Register, Volume 18, Number 27, Pages 2233-2331, April 6, 1993

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 6, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Thermo-hydraulic analysis of the TPX superconducting TF magnets (open access)

Thermo-hydraulic analysis of the TPX superconducting TF magnets

The superconducting magnets in Fusion Reactors are subjected to pulsed, nuclear, and resistive heating. The thermo-hydraulic response of the helium forced-flow cooled conductors to the various heat sources is critical to magnet design and performance. Recently developed computer codes allow accurate modeling of conductor response and have been used as an aid to design of the toroidal field (TF) magnets for the Tokamak Physics eXperiment (TPX). The authors present results of design studies that determine the trade-off between double- and single-pancake helium-flow configurations.
Date: October 6, 1993
Creator: Wong, R. L.; Zbasnik, J. P. & Hassenzahl, W. V.
Object Type: Report
System: The UNT Digital Library
Two-gigawatt burst-mode operation of the intense microwave prototype (IMP) free-electron laser (FEL) for the microwave tokamak experiment (MTX) (open access)

Two-gigawatt burst-mode operation of the intense microwave prototype (IMP) free-electron laser (FEL) for the microwave tokamak experiment (MTX)

The MTX explored the plasma heating effects of 140 GHz microwaves from both Gyrotrons and from the IMP FEL wiggler. The Gyrotron was long pulse length (0.5 seconds maximum) and the FEL produced short-pulse length, high-peak power, single and burst modes of 140 GHZ microwaves. Full-power operations of the IMP FEL wiggler were commenced in April of 1992 and continued into October of 1992. The Experimental Test Accelerator H (ETA-II) provided a 50-nanosecond, 6-MeV, 2--3 kAmp electron beam that was introduced co-linear into the IMP FEL with a 140 GHz Gyrotron master oscillator (MO). The FEL was able to amplify the MO signal from approximately 7 kW to peaks consistently in the range of 1--2 GW. This microwave pulse was transmitted into the MTX and allowed the exploration of the linear and non-linear effects of short pulse, intense power in the MTX plasma. Single pulses were used to explore and gain operating experience in the parameter space of the IMP FEL, and finally evaluate transmission and absorption in the MTX. Single-pulse operations were repeatable. After the MTX was shut down burst-mode operations were successful at 2 kHz. This paper will describe the IMP FEL, Microwave Transmission System to MTX, the …
Date: October 6, 1993
Creator: Felker, B.; Allen, S. & Bell, H.
Object Type: Article
System: The UNT Digital Library
Assessment of a magnet system combining the advantages of cable-in-conduit forced-flow and pool-boiling magnets (open access)

Assessment of a magnet system combining the advantages of cable-in-conduit forced-flow and pool-boiling magnets

This paper presents an idea for a magnet system that could be used to advantage in tokamaks and other fusion engineering devices. Higher performance designs, specifically newer tokamaks such as those for the international Tokamak Engineering Reactor (ITER) and Tokamak Physics Experiment (TPX) use Cable in Conduit Conductor (CICC) forced flow coils to advantage to meet field and current density requirements. Pool boiling magnets lack structural integrity to resist high magnetic forces since helium cooling areas must surround each conductor. A second problem is that any leak can threaten the voltage standoff integrity of the magnet system. This is because a leak can result in low-pressure helium gas becoming trapped by limited conductance in the magnet bundle and low-pressure helium has poor dielectric strength. The system proposed here is basically a CICC system, with it`s inherent advantages, but bathed in higher pressure supercritical helium to eliminate the leak and voltage break-down problems. Schemes to simplify helium coolant plumbing with the proposed system are discussed. A brief historical review of related magnet systems is included. The advantages and disadvantages of using higher pressure, supercritical helium in combination with solid electrical insulation in a CICC system are discussed. Related electrical data from …
Date: October 6, 1993
Creator: Slack, D.; Hassenzahl, W.; Felker, B. & Chaplin, M.
Object Type: Article
System: The UNT Digital Library
An {Omega}({radical}log log n) lower bound for routing in optical networks (open access)

An {Omega}({radical}log log n) lower bound for routing in optical networks

Optical communication is likely to significantly speed up parallel computation because the vast bandwidth of the optical medium can be divided to produce communication networks of very high degree. However, the problem of contention in high-degree networks makes the routing problem in these networks theoretically (and practically) difficult. In this paper we examine Valiant`s h-relation routing problem, which is a fundamental problem in the theory of parallel computing. The h-relation routing problem arises both in the direct implementation of specific parallel algorithms on distributed-memory machines and in the general simulation of shared memory models such as the PRAM on distributed-memory machines. In an h-relation routing problem each processor has up to h messages that it wishes to send to other processors and each processor is the destination of at most h messages. We present a lower bound for routing an h-relation (for any h > 1) on a complete optical network of size -n. Our lower bound applies to any randomized distributed algorithm for this task. Specifically, we show that the expected number of communication steps required to route an arbitrary h-relation is {Omega}(h + {radical}log log n). This is the first known lower bound for this problem which does …
Date: November 6, 1993
Creator: Goldberg, L. A.; Jerrum, M. & MacKenzie, P. D.
Object Type: Article
System: The UNT Digital Library
Acid Solution Absorption of Extruded Polyethylene Foam (U) (open access)

Acid Solution Absorption of Extruded Polyethylene Foam (U)

Water and acid absorption tests of samples of a proposed replacement to current polyethylene foam used as fill material on the FB-Line cation columns have been completed. Water and nitric acid solution absorption of up to 4 volume percent was observed over approximately a 4 month period of time. Because of the nuclear safety implications, liquid absorption of a replacement fill material must be low. EthafoaM{trademark} 220 extruded polyethylene, a product available from Dow Chemical Company appears to be a good candidate material for replacement of the existing fill material. Establishment of 5 volume percent solution absorption specification appears to be both reasonable and achievable for a replacement foam, provided it is acceptable to nuclear safety personnel.
Date: January 6, 1993
Creator: Kyser, E. A.
Object Type: Report
System: The UNT Digital Library
Conference summary (open access)

Conference summary

The conference began with an introductory lecture by Bunakov. It is very appropriate that this workshop be held in Dubna as Bunakov reminded us that the experiments that motivated the current interest in the study of symmetry violation with neutrons were started here at Dubna by Alfimenkov, Pikelner, and collaborators. Bunakov discussed the fact that is the complexity of the compound nucleus that leads to large enhancement of parity violation near P-resonances and to the possibility of using statistical models to relate the measured parity violation to more-fundamental quantities. He also pointed out that it is a rare case in which complexity aids us. Bunakov did not point out that this is an example of another rare phenomena -- where theory has predicted correctly in advance the parity violating effects seen near p-resonances. As long ago as 1969, Karmanov and Lobov first predicted an enhancement of {gamma}-ray circular polarization near p-resonances. Sushkov and Flambaum later predicted asymmetries P {approximately} 10{sup {minus}2} for p-resonances and suggested {sup 117}Sn, {sup 139}La, {sup 232}Th, and {sup 238}U for study. Bunakov and Gudkov developed a theory describing the energy dependence of parity-violating effects over a large energy range. This theory predicted random signs for …
Date: October 6, 1993
Creator: Seestrom, S. J.
Object Type: Article
System: The UNT Digital Library
Environmental Implementation Plan - EIP introduction (open access)

Environmental Implementation Plan - EIP introduction

Due to the commitment and participation of more than 100 professionals from site environmental coordinators, customer improvements and total quality are being incorporated into the Environmental Implementation Plan (EIP). The EIP is now a living document that communicates an overview of site environmental programs and the facility plans that are designed to protect the environment and meet changing regulatory requirements. Continuous improvement of environmental programs is enhanced through planned quarterly self-assessments during the {open_quotes}Reflections{close_quotes} process. Through the sharing of noteworthy practices, lessons learned, and ideas for improvement, the EIP provides a framework for environmental professionals to promote cost effective solutions and program improvements through teamwork and communication. These efforts were initiated by the Central Environmental Committee Executive Committee (CECEC) and developed and coordinated by the EIP subcommittee. The EIP revision process is the baseline for a continuous improvement cycle. Although the EIP is a Westinghouse Savannah River Company (WSRC) document, the environmental-planning process involves and will benefit all site contractors. Together, we are committed to a {open_quotes}Partnership in Environmental Excellence.{close_quotes}
Date: October 6, 1993
Creator: Peterson, G. L.
Object Type: Report
System: The UNT Digital Library
Bench-scale testing of the multi-gravity separator in combination with microcel. Fourth quarterly report, July 1, 1993--September 30, 1993 (open access)

Bench-scale testing of the multi-gravity separator in combination with microcel. Fourth quarterly report, July 1, 1993--September 30, 1993

Work this quarter included equipment installation, shakedown testing, and the beginning of the detailed testing program. With the exception of ongoing Task 4: Sample Characterization, Tasks 1 through 8 are now complete. Task 10: Detailed Testing and Task 12: Sample Analysis began this quarter and will consume all available time during the 5th quarter. Installation and testing of the process equipment, mechanical systems, as well as the electrical systems were completed. The shakedown process uncovered several necessary modifications to the circuit which were subsequently completed. Most of the changes concerned piping and valving modifications which allowed for better material flow and sampling. The circuit was operated with coal to determine the time for each unit to reach steady state. The primary objective of the proposed work is to design, install, and operate an advanced fine coal processing circuit combining the Microcel{trademark} and Multi-Gravity-Separator (MGS) technologies. Both of these processes have specific advantages as stand-alone units. For example, the Microcel column effectively removes ash-bearing mineral matter, while the MGS efficiently removes coal-pyrite composites.
Date: December 6, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Integrated Computer-Enhanced Remote Viewing System. Quarterly report No. 3, April--June 1993 (open access)

Integrated Computer-Enhanced Remote Viewing System. Quarterly report No. 3, April--June 1993

The Interactive, Computer-Enhanced, Remote Viewing System (ICERVS) is designed to provide a reliable geometric description of a robotic task space in a fashion that enables robotic remediation to be carried out more efficiently and economically that with present systems. The key elements are a robust way to store empirical data and a friendly user interface that provides an operator with timely access to all that is known about a scene. ICERVS will help an operator to analyze a scene and generate additional geometric data for automating significant portions of the remediation activity. Features that enable this include the following: storage and display of empirical sensor data; ability to update segments of the geometric description of the task space; side-by-side comparisons of a live TV scene and a computer generated view of the same scene; ability to create and display computer models of perceived objects in the task space, together with textual comments; and easy export of data to robotic world models for robot guidance. Phase 1 of this project was essentially completed in the month of June. Phase 1 (Level III) of this project focuses on the development of the Data Library, which contains the geometric data about the task …
Date: September 6, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Toward a surface photoelectron diffractometer: A progress report on selected advances and an assessment (open access)

Toward a surface photoelectron diffractometer: A progress report on selected advances and an assessment

X-ray diffractometric determination of atomic structures in ordered bulk systems is highly automated and has wide application. By contrast, surface crystallography, whether based on photon or electron scattering, is still in a relatively early stage of development. A summary is given of recent selected highlights in efforts to make progress toward surface photoelectron diffractometry and holography by our Berkeley-Penn State group. It is concluded that an automated photoelectron diffractometer is practical and desirable.
Date: October 6, 1993
Creator: Shirley, D. A; Zheng, Yu; Petersen, B. L.; Hussain, Z.; Huff, W. A.; Barton, J. J. et al.
Object Type: Article
System: The UNT Digital Library
Task J: Outstanding Junior Investigator (OJI). Technical progress report, [November 1, 1993--October 31, 1993] (open access)

Task J: Outstanding Junior Investigator (OJI). Technical progress report, [November 1, 1993--October 31, 1993]

We report on an existing program of research on the production and decay of particles containing the charm and beauty quarks. Charm is studied in Fermilab fixed target experiments E769 and E691. Design and development for a hadron collider beauty experiment is studied in CERN test experiment P238 and in simulation studies for the SSC.
Date: July 6, 1993
Creator: Karchin, P. E.
Object Type: Report
System: The UNT Digital Library
Texture splats for 3D vector and scalar field visualization (open access)

Texture splats for 3D vector and scalar field visualization

Volume Visualization is becoming an important tool for understanding large 3D datasets. A popular technique for volume rendering is known as splatting. With new hardware architectures offering substantial improvements in the performance of rendering texture mapped objects, we present textured splats. An ideal reconstruction function for 3D signals is developed which can be used as a texture map for a splat. Extensions to the basic splatting technique are then developed to additionally represent vector fields.
Date: April 6, 1993
Creator: Crawfis, R. A. & Max, N.
Object Type: Article
System: The UNT Digital Library
Texas Attorney General Opinion: LO93-035 (open access)

Texas Attorney General Opinion: LO93-035

Letter opinion 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, Dan Morales, regarding a legal question submitted for clarification;Whether a navigation district may enter into a tax abatement agreement when a board member of the navigation district owns an interest in the property receiving the tax abatement(RQ-324).
Date: May 6, 1993
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Flow volumes for interactive vector field visualization (open access)

Flow volumes for interactive vector field visualization

Flow volumes are the volumetric equivalent of stream lines. They provide more information about the vector field being visualized than do stream lines or ribbons. Presented is an efficient method for producing flow volumes, composed of transparently rendered tetrahedra, for use in an interactive system. The problems of rendering, subdivision, sorting, rendering artifacts, and user interaction are dealt with.
Date: April 6, 1993
Creator: Max, N.; Becker, B. & Crawfis, R.
Object Type: Article
System: The UNT Digital Library
Task A: Yale Accelerator Users Group (YAUG). Second technical progress report, November 1, 1992--October 31, 1993 (open access)

Task A: Yale Accelerator Users Group (YAUG). Second technical progress report, November 1, 1992--October 31, 1993

This report discusses the following topics: Yaug collider detector program; E-791: continued study of heavy flavors at TPL; Hadroproduction of charm and beauty; Search for composite objects produced in relativistic heavy ion collisions; and high energy physics computer facility.
Date: July 6, 1993
Creator: Adair, R. K.; Sandweiss, J. & Schmidt, M.
Object Type: Report
System: The UNT Digital Library
Largest US oil and gas fields, August 1993 (open access)

Largest US oil and gas fields, August 1993

The Largest US Oil and Gas Fields is a technical report and part of an Energy Information Administration (EIA) series presenting distributions of US crude oil and natural gas resources, developed using field-level data collected by EIA`s annual survey of oil and gas proved reserves. The series` objective is to provide useful information beyond that routinely presented in the EIA annual report on crude oil and natural gas reserves. These special reports also will provide oil and gas resource analysts with a fuller understanding of the nature of US crude oil and natural gas occurrence, both at the macro level and with respect to the specific subjects addressed. The series` approach is to integrate EIA`s crude oil and natural gas survey data with related data obtained from other authoritative sources, and then to present illustrations and analyses of interest to a broad spectrum of energy information users ranging from the general public to oil and gas industry personnel.
Date: August 6, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Department of Energy listing of awardee names inactive awards (open access)

Department of Energy listing of awardee names inactive awards

This Procurement and Assistance Data System (PADS) lists awardees under the following column headings: Awardee name, bin, completion data, description of work, division, vendor ID, city, state, congressional district, contract value, obligations to date, and P/S.
Date: July 6, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Linac BPM cable phase matching (open access)

Linac BPM cable phase matching

This report explains the method chosen to phase match cables, it`s accuracy and the effects of mismatched cables on the position output of the Linac Beam Position Module.
Date: August 6, 1993
Creator: Arthur, J.
Object Type: Report
System: The UNT Digital Library
Tokamak Physics Experiment poloidal field design (open access)

Tokamak Physics Experiment poloidal field design

The Tokamak Physics Experiment (TPX) will have a poloidal field system capable of full inductive operation poloidal for approximately a 20-s flattop and, with superconducting toroidal and poloidal field coils and non-inductive current drive, it will be capable of true steady-state operation. The poloidal field design is based on the ideal MHD equilibrium model as implemented in the TEQ code developed at LLNL. The PF coils are arranged in an up-down symmetric configuration, external to the TF coils. The TPX diverted plasma will have an aspect ratio of 4.5 and is highly shaped with a nominal elongation of 2 and triangularity of approximately 0.8 as measured at the separatrix. The tokamak design is based on a high-current (q{sub {psi}}=3) plasma scenario and a low current scenario. Each scenario has an operational flexibility requirement which is defined as a region of plasma pressure and inductivity ({beta}{sub N} {minus} l{sub i}) space, where the plasma shape is constrained to keep the divertor configuration operational. Single-null plasma configurations are feasible, even with the same divertor hardware, by operating the PF coils asymmetrically. Recently applied optimization techniques have improved the capability of the PF system without additional cost.
Date: October 6, 1993
Creator: Bulmer, R. H.
Object Type: Article
System: The UNT Digital Library
Models for close-in atmospheric dispersion, explosive releases, and particle deposition (open access)

Models for close-in atmospheric dispersion, explosive releases, and particle deposition

Relatively simple models are presented to simulate close-in atmospheric dispersion, explosive releases, and particle deposition. Close-in generally refers to distances less than 50 m downwind from the source. These models assume simple gas dispersion (no chemical reactions, neutral buoyancy) and that particles behave as a gas expect they can be removed from the plume by a simple, deposition-velocity mechanism. These models have been combined into a QuickBASIC program (INEXPLC.BAS) and its PC executable form (INEXPLC.EXE). These programs, along with sample input and output files, are available from the author.
Date: October 6, 1993
Creator: Bloom, S. G.
Object Type: Report
System: The UNT Digital Library