Thermal distortion tests of aluminum and stainless steel plates (open access)

Thermal distortion tests of aluminum and stainless steel plates

An important upgrade to the STAR detector at the Brookhaven National Laboratory RHIC accelerator will be an electromagnetic calorimeter. One design being considered for this calorimeter involves cast lead modules covering {Delta}{phi} = 6{degree} and 0 {le} {vert_bar}{eta}{vert_bar} {le} 1. These modules would consist of alternating layers of lead and sheets of plastic scintillator. The gaps for scintillator between the layers of lead would be created by parallel aluminum plates of thickness {approx_equal}6.6 mm = 0.260in. in the mold for the modules. These plates would need to be machined or ground to be reasonably flat, perhaps to {plus_minus}0.003in., and of uniform thickness from plate to plate. These requirements are imposed by the need to remove the plates from the casting after cooling, and to have good uniformity of the lead layer thickness, which gives good performance for the modules as a calorimeter. Aluminum was chosen for the plates because of its high coefficient of thermal expansion. An important cost in this calorimeter design is associated with the machining or grinding of the plates to proper thickness and flatness. In most cost estimates, it has been assumed that the mold parts could be used many times. This note describes a simple …
Date: June 25, 1993
Creator: Bielick, E.; Fornek, T.; Spinka, H. & Underwood, D.
Object Type: Report
System: The UNT Digital Library
Remediation plan for Well 399-1-16C (open access)

Remediation plan for Well 399-1-16C

The purpose of this plan is to determine hydraulic conditions at Well 399-1-16C (16C) and to present a remediation plan. The objectives are to restore hydraulic isolation of the confined aquifer (water level returning to approximately 370 ft) and to prevent chemical contamination between the unconfined and confined aquifers. This work scope is an extension of Task 4d of the Remedial Investigation/Feasibility Study Work Plan for the 300-FF-5 Operable Unit, Hanford Site, Richland, Washington, DOE/RL 89-14 (1990), and is a result of discussions held with the regulators and documented this plan was presented to the regulators at the January 1993 unit managers meeting and is documented in the minutes from that meeting.
Date: June 25, 1993
Creator: Hulstrom, L. C.
Object Type: Report
System: The UNT Digital Library
[Study of institutional issues relating to transportation of high level waste]. Final technical report (open access)

[Study of institutional issues relating to transportation of high level waste]. Final technical report

This is the ``seventh`` and final Quarterly Report under the scope of work for cooperative agreement between the Western Interstate Energy Board and the US Department of Energy. The report covers the period January--March 1993. The cooperative agreement was to expire in June 1992, but DOE granted an extension through March 24, 1993. Since this is the last Quarterly Report under the expired cooperative agreement, most tasks are noted as being completed. Two final items, however, will soon be sent to DOE -- final minutes from the March 9--11 High- Level Radioactive Waste Committee meeting, and the Year-End Technical Report. Some highlights from the quarter: The Committee decided on a preferred format for the revised Spent Fuel and High-Level Radioactive Waste Transportation Primer. The document would be 100- 200 pages, accompanied by a series of white papers on key transportation elements. A 25--30 page handbook for educating western state elected officials would also be prepared. On March 24, the Committee sent a letter to DOE commenting on the Near-Site Transportation Infrastructure report findings. The Committee is concerned that infrastructure limitations may limit the rail shipping option in many instances, even after upgrades have been implemented. The NSTI findings may also …
Date: June 25, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Methane coupling by membrane reactor. Quarterly technical progress report, March 25, 1993--June 24, 1993 (open access)

Methane coupling by membrane reactor. Quarterly technical progress report, March 25, 1993--June 24, 1993

The goal of this research is to develop and study an inorganic catalytic membrane reactor which will allow the oxidative coupling of methane to C{sub 2} hydrocarbons at near 100% selectivity and relatively higher conversion, by control of the oxygen supply through the membrane. The reactor setup has been completed. Repairs and purchase of new mass flow control equipment have been undertaken to enable accurate quantitative analysis of gas mixtures using the GC-MS. A four point sub miniature thermocouple assembly has been installed which allows temperature gaskets and seals have been tried to achieve good sealing at reaction temperatures. Gas permeability data have been obtained to monitor the change in porosity of a 20 nm pore size {alpha}-alumina membrane with increasing number of perovskite depositions.
Date: June 25, 1993
Creator: Ma, Yi Hua
Object Type: Report
System: The UNT Digital Library
Study of Regional Climate Change. Technical Progress Report, September 1, 1992--June 25, 1993 (open access)

Study of Regional Climate Change. Technical Progress Report, September 1, 1992--June 25, 1993

The research project includes four tasks: GCM diagnosis, climate data preparation, climate data analysis, and the relationship between large- and regional-scale climates to address the following two scientific issues: the need for quality-assured climate data to study long term regional climate changes and to validate model simulated regional climate; and the need to understand the differences among GCMs in the simulations of present climate and climate changes due to increasing CO{sub 2} and other trace gases. This document consists of four sections: the project statement of work, the project progress for the period September 1, 1992--June 25, 1993, the plan for the remaining period, and the plan for the next project year.
Date: June 25, 1993
Creator: Wang, Wei-Chyung
Object Type: Report
System: The UNT Digital Library
Chemical compatibility of DWPF canistered waste forms. Revision 1 (open access)

Chemical compatibility of DWPF canistered waste forms. Revision 1

The Waste Acceptance Preliminary Specifications (WAPS) require that the contents of the canistered waste form are compatible with one another and the stainless steel canister. The canistered waste form is a closed system comprised of a stainless steel vessel containing waste glass, air, and condensate. This system will experience a radiation field and an elevated temperature due to radionuclide decay. This report discusses possible chemical reactions, radiation interactions, and corrosive reactions within this system both under normal storage conditions and after exposure to temperatures up to the normal glass transition temperature, which for DWPF waste glass will be between 440 and 460{degrees}C. Specific conclusions regarding reactions and corrosion are provided. This document is based on the assumption that the period of interim storage prior to packaging at the federal repository may be as long as 50 years.
Date: June 25, 1993
Creator: Harbour, J. R.
Object Type: Report
System: The UNT Digital Library
Tevatron reverse injection (open access)

Tevatron reverse injection

In the new injection scenario antiprotons are injected onto a helical orbit in the Tevatron in order to avoid the detrimental effects of the beam-beam interaction at 150 GeV. The new scenario required changes in the tuning procedure. Antiprotons are too precious to be used for tuning, therefore the antiproton injection line has to be tuned with protons by reverse injecting them from the Tevatron into the Main Pang (MR). Previously, the reverse injection was performed in one supercycle. One batch of uncoalesced bunches was injected into the Tevatron and ejected after 40 seconds. Then the orbit closure was performed in the MR. In the new scheme the lambertson magnets have to be moved and separator polarities have to be switched, activities that cannot be completed in one supercycle. Therefore, the reverse injection sequence was changed. This involved the redefinition of TVBS dock event $D8 as MRBS $D8 thus marking it possible to inject 6 proton batches and eject them one at a time on command, performing orbit closure each time in the MR.
Date: June 25, 1993
Creator: Saritepe, S. & Annala, G.
Object Type: Report
System: The UNT Digital Library
Beam transfer at E0: An overview (open access)

Beam transfer at E0: An overview

The helical orbits in the Tevatron necessitated changes in the beam transfer operation between the Main Ring and the Tevatron. This document is intended to present an overview of the beam transfer with an emphasis on the recent changes. It will also serve as a bibliography for the other documents that exist on Tevatron injection.
Date: June 25, 1993
Creator: Saritepe, S. & Annala, G.
Object Type: Report
System: The UNT Digital Library
Monthly energy review, June 1993 (open access)

Monthly energy review, June 1993

The Monthly Energy Review provides an overview of the production, distribution, and consumption of energy derived from petroleum, natural gas, coal, electricity, and nuclear energy. It also discusses oil and gas resource development, energy prices, and issues relevant to international energy markets.
Date: June 25, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Performance of the GEM electromagnetic calorimeter (open access)

Performance of the GEM electromagnetic calorimeter

The GEM EM calorimeter is optimized for the best energy, position, angular resolution and jet rejection. The detailed simulation results are presented. In the barrel with LKr, an energy resolution of about 6%/{radical}{direct_sum}0.4%, pointing resolution of 40mrad/{radical}E + 0.5mrad, and jet rejection of a factor of 5 are expected.
Date: June 25, 1993
Creator: Ma, Hong
Object Type: Article
System: The UNT Digital Library
US energy industry financial developments, 1993 first quarter (open access)

US energy industry financial developments, 1993 first quarter

Net income for 259 energy companies-- including, 20 major US petroleum companies-- rose 38 percent between the first quarter of 1992 and the first quarter of 1993. An increased level of economic activity, along with colder weather, helped lift the demand for natural gas. crude oil, coal, and electricity. The sharp rise in the domestic price of natural gas at the wellhead relative to the year-ago quarter was the most significant development in US energy during the first quarter. As a consequence of higher natural gas prices, the upstream segment of the petroleum industry reported large gains in income, while downstream income rose due to higher refined product demand. Increased economic activity and higher weather-related natural gas demand also led to improvements in income for the rate-regulated energy segment. However, declining domestic oil production continued to restrain upstream petroleum industry earnings growth, despite a moderate rise in crude oil prices.
Date: June 25, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Shale oil value enhancement research. First quarterly technical progress report, March 1, 1993--May 31, 1993 (open access)

Shale oil value enhancement research. First quarterly technical progress report, March 1, 1993--May 31, 1993

Concurrent progress is being made in all key areas, namely, separation, characterization and market assessment. The market area, not one of our traditionally strong areas, has been going better than expected. We believe this is due mainly to the emerging interest in new and unconventional materials. The characterization work has been progressing solidly with the fundamental Z-BASIC correlations providing information not heretofore available in the chemical literature. Our agreement with Hewlett-Packard regarding the purchase of equipment at a reduced price is complete and the gc-ms will be ordered shortly. The separation work has progressed satisfactorily although an unexpected amount of time has been required for ``facilities`` and ``equipment`` related issues. Some of these issues have dealt with safety and regulatory compliance when storing larger quantities of samples. These now seem to be solved. We have a lot of direct experience in shale oil separations dating back to the OXY project and before. Also, we will streamline our work by going to prepacked micro-separation tools for some of our separation characterization work. This will allow us to stay on schedule. Overall, we are on schedule with the project. All administration requirements are in place and the accounting and financial records are …
Date: June 25, 1993
Creator: Bunger, J. W.; Russell, C. P.; Devineni, P. A. V.; Cogswell, D. E. & Wiser, J. W.
Object Type: Report
System: The UNT Digital Library
Magnetic measurements of the wedge-pole prototype undulator (open access)

Magnetic measurements of the wedge-pole prototype undulator

The Advanced Photon Source (APS), a 7-GeV positron storage ring, will have as many as 34 straight sections available for installation of multiple insertion devices (IDs). The size and the taper of the gap of the IDs will be able to be varied to tune the energy of the emitted radiation to the experiments. The IDs must not affect the particle beam motion. Therefore, the disturbances should be kept within tight boundaries to assure that the ring performance parameters are maintained and that the emitted radiation shows little degradation from an ideal device. These requirements are derived from the stability criteria of the beam to be stable within 10% of the emittance: The requirements cannot be met without using closed loop orbit compensation. With such a system installed, it is reasonable to relax the requirements on the ID magnetic field performance.
Date: June 25, 1993
Creator: Vasserman, I.; Pflueger, J. & Gluskin, E.
Object Type: Report
System: The UNT Digital Library
Cable tracking system proposal (open access)

Cable tracking system proposal

The Experimental Facilities Division requires a labeling system to identify and catalog the instrumentation, control, and computer cables that will run throughout the building. Tom Sheridan from the MIS Group has already made some general suggestions about the information that could be included in an Oracle-based Cable Tracking System (E-mail text distributed by Gary Gunderson on the 27th of August). Glenn Decker`s LS Note No. 191 is also relevant to the subject since it addresses name assignment rules for the storage ring devices. The intent of this note is to recommend a mechanism for tracking wires/cables, with enough specifics, to which all groups in the Division would adhere when pulling cables. Because most cables will run between various beamline devices, hutch safety components, and equipment racks, any method of tracking cables is related to the Equipment Tracking System. That system has been developed by the APS Project personnel and is described in the APS Project Equipment Tracking System Guidelines (DRAFT). It can be adopted to XFD`s needs. Two essential features of the Cable Tracking System are: 1) Each cable shell have a unique Identifier, and 2) Cable label must contain information that is helpful during troubleshooting in the field. The …
Date: June 25, 1993
Creator: Friedman, N.
Object Type: Report
System: The UNT Digital Library
Texas Register, Volume 18, Number 49, Pages 4151-4217, June 25, 1993 (open access)

Texas Register, Volume 18, Number 49, Pages 4151-4217, June 25, 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: June 25, 1993
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History