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15th Street News (Midwest City, Okla.), Vol. 28, No. 25, Ed. 1 Friday, April 16, 1999 (open access)

15th Street News (Midwest City, Okla.), Vol. 28, No. 25, Ed. 1 Friday, April 16, 1999

Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date: April 16, 1999
Creator: Pace, Joshua
Object Type: Newspaper
System: The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 100, No. 26, Ed. 1 Friday, April 16, 1999 (open access)

Altus Times (Altus, Okla.), Vol. 100, No. 26, Ed. 1 Friday, April 16, 1999

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: April 16, 1999
Creator: Cole, Carol
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Baytown Sun (Baytown, Tex.), Vol. 77, No. 144, Ed. 1 Friday, April 16, 1999 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 77, No. 144, Ed. 1 Friday, April 16, 1999

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: April 16, 1999
Creator: Dobbs, Gary
Object Type: Newspaper
System: The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 94, No. 31, Ed. 1 Friday, April 16, 1999 (open access)

The Boerne Star (Boerne, Tex.), Vol. 94, No. 31, Ed. 1 Friday, April 16, 1999

Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date: April 16, 1999
Creator: Chionsini, Brandi
Object Type: Newspaper
System: The Portal to Texas History
Budget Issues: Budgetary Implications of Selected GAO Work for Fiscal Year 2000 (open access)

Budget Issues: Budgetary Implications of Selected GAO Work for Fiscal Year 2000

A chapter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the budgetary implications of selected program reforms discussed in its work but not yet implemented or enacted."
Date: April 16, 1999
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Chromaticity control in the Fermilab Main Injector (open access)

Chromaticity control in the Fermilab Main Injector

Chromaticity control in the Fermilab Main Injector will be important both in accelerating protons and antiprotons from 8 GeV to 150 GeV (or 120 GeV) and in decelerating recycled 150 GeV antiprotons to 8 GeV for storage in the Recycler Ring. The Main Injector has two families of sextupoles to control the chromaticity. In addition to the natural chromaticity, they must correct for sextupole fields from ramp-rate-dependent eddy currents in the dipole beampipes and current-dependent sextupole fields in the dipole magnets. The horizontal sextupole family is required to operate in a bipolar mode below the transition energy of 20 GeV. We describe methods used to control chromaticities in the Fermilab Main Injector. Emphasis is given to the software implementation of the operator interface to the front-end ramp controllers. Results of chromaticity measurements and their comparison with the design model will be presented.
Date: April 16, 1999
Creator: al., G. Wu et
Object Type: Article
System: The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 104, No. 31, Ed. 1 Friday, April 16, 1999 (open access)

The Clifton Record (Clifton, Tex.), Vol. 104, No. 31, Ed. 1 Friday, April 16, 1999

Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date: April 16, 1999
Creator: Smith, W. Leon
Object Type: Newspaper
System: The Portal to Texas History
The Colony Courier-Leader (The Colony, Tex.), Vol. 17, No. 47, Ed. 1 Friday, April 16, 1999 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 17, No. 47, Ed. 1 Friday, April 16, 1999

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: April 16, 1999
Creator: Watterson, Tim
Object Type: Newspaper
System: The Portal to Texas History
Crop Insurance: USDA's Progress in Expanding Insurance for Specialty Crops (open access)

Crop Insurance: USDA's Progress in Expanding Insurance for Specialty Crops

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the availability of the Department of Agriculture's (USDA) federal crop insurance for specialty crops, focusing on: (1) USDA's recent progress in expanding coverage to specialty crops; (2) the new marketing practices insurance companies have introduced for specialty crops and the potential advantages and disadvantages of the practices, including their effect on producers' participation; and (3) the potential effect on participation by producers in the catastrophic crop insurance program if they were charged higher fees."
Date: April 16, 1999
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Dallas Voice (Dallas, Tex.), Vol. 15, No. 50, Ed. 1 Friday, April 16, 1999 (open access)

Dallas Voice (Dallas, Tex.), Vol. 15, No. 50, Ed. 1 Friday, April 16, 1999

Weekly newspaper from Dallas, Texas that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date: April 16, 1999
Creator: Vercher, Dennis
Object Type: Newspaper
System: The UNT Digital Library
Defense Inventory: Status of Inventory and Purchases and Their Relationship to Current Needs (open access)

Defense Inventory: Status of Inventory and Purchases and Their Relationship to Current Needs

A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the Department of Defense's (DOD) on-hand and on-order inventory, focusing on whether DOD: (1) had on-hand inventory exceeding current requirements as of September 30, 1996, and 1997; and (2) was buying inventory for which it had no current requirements as of those same dates."
Date: April 16, 1999
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Department of Agriculture, Commodity Credit Corporation: Livestock Assistance Program (open access)

Department of Agriculture, Commodity Credit Corporation: Livestock Assistance Program

Other written product issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed the Commodity Credit Corporation's (CCC) Livestock Assistance Program (LAP). GAO noted that: (1) the rule would provide new terms and conditions for LAP authorized in the Agriculture, Rural Development, Food and Drug Administration, and Related Agencies Appropriations Act of 1999; (2) in counties that have suffered a 40 percent or greater loss of normal grazing as a result of a natural disaster, LAP will provide emergency feed assistance for losses suffered by livestock producers in calendar year 1998; and (3) CCC complied with applicable requirements in promulgating the rule."
Date: April 16, 1999
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Friday, April 16, 1999 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Friday, April 16, 1999

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: April 16, 1999
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
Extruded plastic scintillation detectors (open access)

Extruded plastic scintillation detectors

As a way to lower the cost of plastic scintillation detectors, commercially available polystyrene pellets have been used in the production of scintillating materials that can be extruded into different profiles. The selection of the raw materials is discussed. Two techniques to add wavelength shifting dopants to polystyrene pellets and to extrude plastic scintillating strips are described. Data on light yield and transmittance measurements are presented.
Date: April 16, 1999
Creator: Anna Pla-Dalmau, Alan D. Bross and Kerry L. Mellott
Object Type: Article
System: The UNT Digital Library
First charm baryon physics from SELEX(E781) (open access)

First charm baryon physics from SELEX(E781)

We present preliminary results on various aspects of charm baryon studies at the 1996-1997 fixed target experiment of Fermilab studying charm produced from incident {Sigma}{sup -}, proton, and {pi}{sub -} beams at 600 GeV. First results include the comparison of hadroproduction asymmetries for {Lambda}{sub c}{sup +} production from the 3 beams as well xF distributions and the first observation of the Cabbibo-suppressed decay {Xi}{sub c}{sup +} {yields} pK{sup -}{pi}{sup +}. The relative branching fraction of the Cabbibo-suppressed mode to the 3-body Cabbibo-favored modes is also presented.
Date: April 16, 1999
Creator: Jun, F. G. Garcia and S. Y.
Object Type: Article
System: The UNT Digital Library
A free interactive matching program (open access)

A free interactive matching program

For physicists and engineers involved in the design and analysis of beamlines (transfer lines or insertions) the lattice function matching problem is central and can be time-consuming because it involves constrained nonlinear optimization. For such problems convergence can be difficult to obtain in general without expert human intervention. Over the years, powerful codes have been developed to assist beamline designers. The canonical example is MAD (Methodical Accelerator Design) developed at CERN by Christophe Iselin. MAD, through a specialized command language, allows one to solve a wide variety of problems, including matching problems. Although in principle, the MAD command interpreter can be run interactively, in practice the solution of a matching problem involves a sequence of independent trial runs. Unfortunately, but perhaps not surprisingly, there still exists relatively few tools exploiting the resources offered by modern environments to assist lattice designer with this routine and repetitive task. In this paper, we describe a fully interactive lattice matching program, written in C++ and assembled using freely available software components. An important feature of the code is that the evolution of the lattice functions during the nonlinear iterative process can be graphically monitored in real time; the user can dynamically interrupt the iterations …
Date: April 16, 1999
Creator: Ostiguy, J. F.
Object Type: Article
System: The UNT Digital Library
Fry Street Fair [1999] (open access)

Fry Street Fair [1999]

Special supplement to the North Texas Daily, a student newspaper from the University of North Texas in Denton, Texas that features news and information on the annual Fry Street Fair held by the Delta Lodge.
Date: April 16, 1999
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
High Current, Long Beam Pulse with SLED (open access)

High Current, Long Beam Pulse with SLED

A proposed, high charge, fixed target experiment (E-158) is planned to run with the highest possible energies available at the Stanford Linear Accelerator Center (SLAC), at 45 and 48 Gev. The charge is up to 6 {center_dot} 10{sup 11} particles in a 370 ns long beam pulse. The SLAC Energy Development (SLED) rf system generates an increasing no-load beam energy, with a linearly decreasing slope. We show how to obtain a current variation that tracks the no-load voltage, resulting in zero energy spread. We discuss the results of a lower energy experiment that verifies the predicted charge and current at the energies required for E-158.
Date: April 16, 1999
Creator: Decker, Franz-Josef
Object Type: Report
System: The UNT Digital Library
The Hopkins County Echo (Sulphur Springs, Tex.), Vol. 204, No. 16, Ed. 1 Friday, April 16, 1999 (open access)

The Hopkins County Echo (Sulphur Springs, Tex.), Vol. 204, No. 16, Ed. 1 Friday, April 16, 1999

Weekly newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.
Date: April 16, 1999
Creator: Keys, Scott & Lamb, Bill
Object Type: Newspaper
System: The Portal to Texas History
An ionization cooling channel for muon beams based on alternating solenoids (open access)

An ionization cooling channel for muon beams based on alternating solenoids

The muon collider requires intense, cooled muon bunches to reach the required luminosity. Due to the limited life-time of the muon, the cooling process must take place very rapidly. Ionization cooling seems to be our only option, given the large emittances of the muon beam from pion decay. However, this ionization cooling method has been found quite difficult to implement in practice. We describe a scheme based on the use of liquid hydrogen absorbers fol-lowed by r.f. cavities (�pillbox� or �open iris� type), em-bedded in a transport lattice based on high field solenoids. These solenoidal fields are reversed periodically in order to suppress the growth of the canonical angular momentum. This channel has been simulated in detail with independent codes, featuring conventional tracking in e.m. fields and de-tailed simulation of multiple scattering and straggling in the the absorbers and windows. These calculations show that the 15 Tesla lattice cools in 6-Dphase space by a factor {approx} 2 over a distance of 20 m.
Date: April 16, 1999
Creator: al., Juan C. Gallardo et
Object Type: Article
System: The UNT Digital Library
The Longhorn Express (Harper, Tex.), Vol. [1], No. 4, Ed. 1 Friday, April 16, 1999 (open access)

The Longhorn Express (Harper, Tex.), Vol. [1], No. 4, Ed. 1 Friday, April 16, 1999

Student newspaper of Harper Independent School District in Harper, Texas that includes school news and information along with advertising.
Date: April 16, 1999
Creator: Harper Independent School District Journalism Class
Object Type: Newspaper
System: The Portal to Texas History
Measurement of sextupole orbit offsets in the APS storage ring. (open access)

Measurement of sextupole orbit offsets in the APS storage ring.

Horizontal orbit errors at the sextuples in the Advanced Photon Source (APS) storage ring can cause changes in tune and modulation of the beta functions around the ring. To determine the significance of these effects requires knowing the orbit relative to the magnetic center of the sextuples. The method considered here to determine the horizontal beam position in a given sextupole is to measure the tune shift caused by a change in the sextupole strength. The tune shift and a beta function for the same plane uniquely determine the horizontal beam position in the sextupole. The beta function at the sextupole was determined by propagating the beta functions measured at nearby quadrupoles to the sextupole location. This method was used to measure the sextupole magnetic center offset relative to an adjacent beam position monitor (BPM) at a number of sextupole locations. We report on the successes and problems of the method as well as an improved method.
Date: April 16, 1999
Creator: Borland, M.
Object Type: Article
System: The UNT Digital Library
Measurements of the electron cloud in the APS storage ring. (open access)

Measurements of the electron cloud in the APS storage ring.

Synchrotron radiation interacting with the vacuum chamber walls in a storage ring produce photoelectrons that can be accelerated by the beam, acquiring sufficient energy to produce secondary electrons in collisions with the walls. If the secondary-electron yield (SEY) coefficient of the wall material is greater than one, as is the case with the aluminum chambers in the Advanced Photon Source (APS) storage ring, a runaway condition can develop. As the electron cloud builds up along a train of stored positron or electron bunches, the possibility exists that a transverse perturbation of the head bunch will be communicated to trailing bunches due to interaction with the cloud. In order to characterize the electron cloud, a special vacuum chamber was built and inserted into the ring. The chamber contains 10 rudimentary electron-energy analyzers, as well as three targets coated with different materials. Measurements show that the intensity and electron energy distribution are highly dependent on the temporal spacing between adjacent bunches and the amount of current contained in each bunch. Furthermore, measurements using the different targets are consistent with what would be expected based on the SEY of the coatings. Data for both positron and electron beams are presented.
Date: April 16, 1999
Creator: Harkey, K. C.
Object Type: Article
System: The UNT Digital Library
The Message, Volume 35, April 16, 1999 (open access)

The Message, Volume 35, April 16, 1999

Newsletter of Congregation Beth Yeshurun in Houston, including news and events, upcoming services, member announcements, editorials, and other information of interest to congregants.
Date: April 16, 1999
Creator: Congregation Beth Yeshurun (Houston, Tex.)
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History