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Configuring the SLC linac for injection into PEP
From time to time the normal SLC physics program is to be interrupted so that beam can be delivered to PEP. In order that the switch to PEP injection (and the switch back again) can be accomplished quickly and easily, the gun, the damping rings, the linac phase ramp, the energy profile of the linac klystrons for the scavenger bunch, and the entire positron production system are to be kept the same as in the SLC configuration. What mainly remains to be changed is the linac klystron profile for the leading two bunches - those going to PEP. The new klystron profile must be such that it leaves these two beams (1) with final energies that match that of the storage ring and (2) with final energy spectra that fit within the energy aperture of the PEP transfer line. The conditions that need to be met in order to achieve these two goals are discussed in this note. 1 ref., 2 figs.
Date:
December 15, 1989
Creator:
Bane, K.L.F.
Object Type:
Report
System:
The UNT Digital Library
[Letter from Jack Davis to Mitch Jericho, December 15, 1992]
Photocopy of a letter from Jack Davis, co-director of North Texas Institute for Educators on the Visual Arts, to Mitch Jericho. Thanking Jericho for visiting the University of North Texas campus to talk about a collaboration between them and Young Audiences. As requested by Jericho, Davis has enclosed a copy of the paper on accountability which will appear in the Winter 1993 issues of Studies in Art Education. Copied on the letter is Bill McCarter.
Date:
December 15, 1992
Creator:
Davis, Donald Jack
Object Type:
Letter
System:
The UNT Digital Library
Exploration of the Planets: A History, A Prospect, and Some Issues
This report discusses the history and future of planetary exploration programs by the U.S. and the Soviet Union. Topics covered are motivations for planetary exploration, unmanned missions sent to Mars and Venus by the U.S. and Soviet Union, plans for manned missions to planets such as Mars, technical needs and costs for planetary space missions, and long-term plans and ideas.
Date:
December 15, 1969
Creator:
Devoe, Barbara M. & Sheldon, Charles S., II
Object Type:
Report
System:
The UNT Digital Library
LMFBR safety program. Annual technical progress report. Government fiscal year, 1977
Information is presented concerning the development of the SOMIX-1 computer code for sodium drop burning analysis; experimental analysis of burning sodium drops; aerosol leakage from containment buildings; high-temperature-concentration aerosols; aerosol source term from vaporized fuel; properties of high-temperature fuel mixtures; and development of the COMRADEX computer code for analysis of radiological doses in the environment from LMFBR accidents.
Date:
December 15, 1977
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Heavy leptons at the SSC
It is argued that detection of heavy leptons at the Superconducting Super Collider seems to be very difficult but perhaps not impossible. The feasibility is shown to depend critically upon the ability to identify events with W's decaying hadronically and missing transverse momentum. (LEW)
Date:
December 15, 1987
Creator:
Anderson, G. & Hinchliffe, I.
Object Type:
Article
System:
The UNT Digital Library
Presupernova evolution of massive stars
Population I stars of 15 M/sub mass/ and 25 M/sub mass/ have been evolved from the zero-age main sequence through iron core collapse utilizing a numerical model that incorporates both implicit hydrodynamics and a detailed treatment of nuclear reactions. The stars end their presupernova evolution as red supergiants with photospheric radii of 3.9 x 10/sup 13/ cm and 6.7 x 10/sup 13/ cm, respectively, and density structures similar to those invoked to explain Type II supernova light curves on a strictly hydrodynamic basis. Both stars are found to form substantially neutronized ''iron'' cores of 1.56 M/sub mass/ and 1.61 M/sub mass/, and central electron abundances of 0.427 and 0.439 moles/g, respectively, during hydrostatic silicon burning. Just prior to collapse, the abundances of the elements in the 25 M/sub mass/ star (excluding the neutronized iron core) have ratios strikingly close to their solar system values over the mass range from oxygen to calcium, while the 15 M/sub mass/ star is characterized by large enhancements of Ne, Mg, and Si. It is pointed out on nucleosynthetic grounds that the mass of the neutronized core must represent a lower limit to the mass of the neutron star or black hole remnant that stars …
Date:
December 15, 1977
Creator:
Weaver, T. A.; Zimmerman, G. B. & Woosley, S. E.
Object Type:
Report
System:
The UNT Digital Library
LIMB Demonstration Project Extension
The basic goal of the Limestone Injection Multistage Burner (LIMB) demonstration is to extend LIMB technology development to a full- scale application on a representative wall-fired utility boiler. The successful retrofit of LIMB to an existing boiler is expected to demonstrate that (a) reductions of 50 percent or greater in SO{sub x} and NO{sub x} emissions can be achieved at a fraction of the cost of add-on FGD systems, (b) boiler reliability, operability, and steam production can be maintained at levels existing prior to LIMB retrofit, and (c) technical difficulties attributable to LIMB operation, such as additional slagging and fouling, changes in ash disposal requirements, and an increased particulate load, can be resolved in a cost-effective manner. The primary fuel to be used will be an Ohio bituminous coal having a nominal sulfur content of 3 percent or greater.
Date:
December 15, 1988
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Occurrence and use of complex resonances (poles in scattering and radiation problems)
In a wide variety of physics problems, especially those which involve wave phenomena such as in electromagnetics and acoustics, a behavior results that can be described by systems of linear (partial) differential equations. Solutions to such problems often can be expressed simply in the form of an exponential series. Some specific background material for this approach is discussed, and a variety of example applications is summarized. (WHK)
Date:
December 15, 1981
Creator:
Miller, E. K.
Object Type:
Article
System:
The UNT Digital Library
Attempt to compare two arc orbit correction schemes analytically
Consider a transport line that consists of periodic cells. Let the beam position monitors and the orbit correctors be located with the same period as the cells and let the BPM's and the corrector distributions interlace each other. The arrangement does not always provide a stable orbit correction. The criterion for stability has been derived by Joe Murray and is reproduced. We calculate the rms orbit, the effect of BPM errors and the rms corrector strength in such correction schemes, yielding analytic formulae for these quantities. We then apply these formulae to the SLC arcs.
Date:
December 15, 1983
Creator:
Chao, A. & Weng, W.
Object Type:
Report
System:
The UNT Digital Library
Energy and protein production from pulp mill wastes. Progress report, September 15, 1977--December 15, 1977
Effort during the past quarter was directed at two specific objectives. First, the conversion of the protein production experiments from batch to continuous operation and, second, the identification of growth stimulants to increase methane yield. Early in the project, yeast production ranging from 0.5 to 5.0 grams of dry yeast per liter had been obtained in batch cultures. Highest yields were consistently attained on SSL (spent sulfite liquor) which had been ozonated for only 10 minutes. Continuous fermentation studies using three hour ozonated SSL confirmed the characteristic yields demonstrated in previous batch tests. Contamination, which occurred at residence times less than two days, appeared to decrease protein production rate and yield. Vitamins and minerals, fatty acids, and low molecular weight alcohols were investigated as possible stimulants for methane production. Only the combination of alcohol plus vitamins and minerals seemed to be effective. Stimulated production failed to achieve the 25 ml per hour rate that had randomly been exceeded many times over the past six months. Additional culture studies are planned to examine the possibility that the mixed culture, now present in the anaerobic fermenters, has degenerated slowly over the past year.
Date:
December 15, 1977
Creator:
Jurgensen, M. F. & Patton, J. T.
Object Type:
Report
System:
The UNT Digital Library
The limnology of L Lake: Results of the L-Lake monitoring program, 1986--1989
L Lake was constructed in 1985 on the upper regions of Steel Creek, SRS to mitigate the heated effluents from L Reactor. In addition to the NPDES permit specifications (Outfall L-007) for the L-Reactor outfall, DOE-SR executed an agreement with the South Carolina Department of Health and Environmental Control (SCDHEC), that thermal effluents from L-Reactor will not substantially alter ecosystem components in the approximate lower half of L Lake. This region should be inhabited by Balanced (Indigenous) Biological Communities (BBCs) in accordance with Section 316(a) of the Pollution Control (Clean Water) Act (Public Law 92-500). In response to this requirement the Environmental Sciences Section/Ecology Group initiated a comprehensive biomonitoring program which documented the development of BBCs in L Lake from January 1986 through December 1989. This report summarizes the principal results of the program with regards to BBC compliance issues and community succession in L Lake. The results are divided into six sections: water quality, macronutrients, and phytoplankton, aquatic macrophytes, zooplankton, benthic macroinvertebrates, fish, and community succession. One of the prime goals of the program was to detect potential reactor impacts on L Lake.
Date:
December 15, 1991
Creator:
Bowers, J.A.
Object Type:
Report
System:
The UNT Digital Library
SHUTDOWN COOLING TEST. Pathfinder Atomic Power Plant Summary Report
Tests are performed on Pathfinder superheat fuel element mockups, under reactor conditions of 600 psig, in order to determine the parameters influencing heat transfer from the fuel elements to the moderating water under shutdown conditions. The peak temperatures reached by the superheat elements are also found as functions of the heat generation rate. A mathematical model of the heat transfer system is developed. (T.F.H.)
Date:
December 15, 1961
Creator:
Littleton, W.E. & Ross, W.
Object Type:
Report
System:
The UNT Digital Library
Isotopic HCl transfer laser
An HCl laser which uses isotopic V-V energy transfer collisions as a pumping mechanism has been demonstrated. This multiline laser, which utilized an intracavity cold gas isotope filter, increased the energy from the P/sub 1/ lines of H/sup 37/Cl while decreasng the energies of the P/sub 1/ and P/sub 2/ lines of H/sup 35/Cl. Previously unreported lines, including emission from R branch transitions, have also been observed from single-line HCl and HBr lasers.
Date:
December 15, 1977
Creator:
Badcock, C.C.; Hwang, W.C.; Kalsch, J.F. & Kamada, R.F.
Object Type:
Report
System:
The UNT Digital Library
The Mangum Star. (Mangum, Okla.), Vol. 23, No. 25, Ed. 1 Thursday, December 15, 1910
Weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1910
Creator:
LeCompte, W. R.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Socialist Antidote (Mangum, Okla.), Vol. 1, No. 2, Ed. 1 Wednesday, December 15, 1915
Monthly newspaper from Mangum, Oklahoma that includes anti-socialist and pro-Christian viewpoints and arguments.
Date:
December 15, 1915
Creator:
Stone, Logan
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Democrat. (Altus, Okla.), Vol. 4, No. 39, Ed. 1 Thursday, December 15, 1910
Weekly newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1910
Creator:
Ruthruff, C. E.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Oklahoma State Register. (Guthrie, Okla.), Vol. 13, No. 50, Ed. 1 Thursday, December 15, 1904
Weekly newspaper from Guthrie, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
December 15, 1904
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Socialist Antidote (Granite, Okla.), Vol. 2, No. 2, Ed. 1 Friday, December 15, 1916
Monthly newspaper from Granite, Oklahoma that includes anti-socialist and pro-Christian viewpoints and arguments.
Date:
December 15, 1916
Creator:
Stone, Logan
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Star. (Mangum, Okla. Terr.), Vol. 17, No. 24, Ed. 1 Thursday, December 15, 1904
Weekly newspaper from Mangum, Oklahoma that includes local, territorial, and national news along with advertising.
Date:
December 15, 1904
Creator:
Echols, R. C. & Townsend, G. B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Guthrie Daily Star (Guthrie, Okla.), Vol. 9, No. 238, Ed. 1 Sunday, December 15, 1912
Daily newspaper from Guthrie, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1912
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Willow Times (Willow, Okla.), Vol. 1, No. 33, Ed. 1 Friday, December 15, 1916
Weekly newspaper from Willow, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1916
Creator:
Roper, Ira T.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Kiowa Breeze. (Kiowa, Indian Terr.), Vol. 4, No. 35, Ed. 1 Friday, December 15, 1905
Weekly newspaper from Kiowa, Indian Territory that includes local, territorial, and national news along with advertising.
Date:
December 15, 1905
Creator:
Coak, George J. & Coak, Mrs. George J.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Hooker Advance (Hooker, Okla.), Vol. 8, No. 45, Ed. 1 Friday, December 15, 1911
Weekly newspaper from Hooker, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1911
Creator:
Hiebert, A. L.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Tyrone Observer. (Tyrone, Okla.), Vol. 7, No. 27, Ed. 1 Thursday, December 15, 1910
Weekly newspaper from Tyrone, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 1910
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History