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62-TeV center of mass hadron collider with superbunch beams (open access)

62-TeV center of mass hadron collider with superbunch beams

The scheme of a 62-TeV center of mass p-p collider with superbunch beams at Fermilab is proposed as a practical and realistically achievable future project. It will be built in two stages, using the same tunnel, first with a 2 Tesla low field magnet collider ring and later with a 10 Tesla high field magnet collider ring. Both low and high field magnets have twin bore aperture and will be installed in the tunnel with the circumference of 87.25 km. In each bore a proton beam is accelerated, using induction cavities to increase luminosity. In the first stage they install a 7 TeV accelerator ring with operating field of 2 Tesla, based on the superferric transmission-line design. This ring will be operated at a 14-TeV center of mass collider. This will have the same energy as the LHC, but it will have 15 times higher luminosity, namely 1.5 x 10{sup 35}/cm{sup 2}/sec. The estimated synchrotron radiation is negligible with this machine. The existing Fermilab accelerator system, including the 150 GeV main injector, will be used as the injector system. Its rough cost estimation and schedule for this first stage are presented. In the second stage proton beams are accelerated, also …
Date: November 5, 2001
Creator: al., Ryuji Yamada et
Object Type: Article
System: The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 102, No. 212, Ed. 1 Monday, November 5, 2001 (open access)

Altus Times (Altus, Okla.), Vol. 102, No. 212, Ed. 1 Monday, November 5, 2001

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: November 5, 2001
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Alvin Sun (Alvin, Tex.), Vol. 110, No. 90, Ed. 1 Monday, November 5, 2001 (open access)

The Alvin Sun (Alvin, Tex.), Vol. 110, No. 90, Ed. 1 Monday, November 5, 2001

Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date: November 5, 2001
Creator: Schwind, Jim & Holton, Kathleen
Object Type: Newspaper
System: The Portal to Texas History
Band anticrossing in Group II-Ox-VI1-x highly mismatched alloys: Cd1-yMnyOxTe1-x quaternaries synthesized by O ion implantation (open access)

Band anticrossing in Group II-Ox-VI1-x highly mismatched alloys: Cd1-yMnyOxTe1-x quaternaries synthesized by O ion implantation

None
Date: November 5, 2001
Creator: Yu, K. M.; Walukiewicz, W.; Wu, J.; Beeman, J. W.; Ager, J. W., III; Haller, E. E. et al.
Object Type: Article
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 79, No. 344, Ed. 1 Monday, November 5, 2001 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 79, No. 344, Ed. 1 Monday, November 5, 2001

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: November 5, 2001
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History
BTeV level 1 vertex trigger (open access)

BTeV level 1 vertex trigger

BTeV is a B-physics experiment that expects to begin collecting data at the C0 interaction region of the Fermilab Tevatron in the year 2006. Its primary goal is to achieve unprecedented levels of sensitivity in the study of CP violation, mixing, and rare decays in b and c quark systems. In order to realize this, it will employ a state-of-the-art first-level vertex trigger (Level 1) that will look at every beam crossing to identify detached secondary vertices that provide evidence for heavy quark decays. This talk will briefly describe the BTeV detector and trigger, focus on the software and hardware aspects of the Level 1 vertex trigger, and describe work currently being done in these areas.
Date: November 5, 2001
Creator: Wang, Michael H.L.S.
Object Type: Article
System: The UNT Digital Library
Computational Design Studies for an Ion Extraction System for a ''volume-type'' ECR Ion Source (open access)

Computational Design Studies for an Ion Extraction System for a ''volume-type'' ECR Ion Source

Numerical studies have been performed for optimally extracting high-intensity, space-charged-limited multi-charged ion beams from an all-permanent-magnet, ''volume-type'' ECR ion source, equipped with a three-electrode extraction system. These studies clearly demonstrate the importance of being able to adjust the extraction gap in order to ensure high quality, minimum divergence (highly transportable) ion beams. Optimum extraction conditions are reached whenever the plasma meniscus has an optimum curvature for a given current density. Optimum perveance (optimum current) values are found to closely agree with those derived from elementary analytical theory for extraction of space-charge-dominated beams. Details of the electrode system design as well as angular divergence and RMS emittance versus extraction parameter data (e.g., perveance and extraction gap) are provided for ion beams of varying charge-state and mass, extracted under the influence of a mirror-geometry plasma confinement magnetic field.
Date: November 5, 2001
Creator: Zaim, H.
Object Type: Article
System: The UNT Digital Library
CSEWG SYMPOSIUM, A CSWEG RETROSPECTIVE. 35TH ANNIVERSARY CROSS SECTION EVALUATION WORKING GROUP, NOV. 5, 2001, BROOKHAVEN NATIONAL LABORATORY. (open access)

CSEWG SYMPOSIUM, A CSWEG RETROSPECTIVE. 35TH ANNIVERSARY CROSS SECTION EVALUATION WORKING GROUP, NOV. 5, 2001, BROOKHAVEN NATIONAL LABORATORY.

This publication has been prepared to record some of the history of the Cross Section Evaluation Working Group (CSEWG). CSEWG is responsible for creating the evaluated nuclear data file (ENDF/B) which is widely used by scientists and engineers who are involved in the development and maintenance of applied nuclear technologies. This organization has become the model for the development of nuclear data libraries throughout the world. The data format (ENDF) has been adopted as the international standard. On November 5, 2001, a symposium was held at Brookhaven National Laboratory to celebrate the 50 th meeting of the CSEWG organization and the 35 th anniversary of its first meeting in November 1966. The papers presented in this volume were prepared by present and former CSEWG members for presentation at the November 2001 symposium. All but two of the presentations are included. I have included an appendix to list all of the CSEWG members and their affiliations, which has been compiled from the minutes of each of the CSEWG meetings. Minutes exist for all meetings except the 4 th meeting held in January 1968. The list includes 348 individuals from 71 organizations. The dates for each of the 50 CSEWG meetings are …
Date: November 5, 2001
Creator: DUNFORD, C.; HOLDEN, N. & PEARLSTEIN, S.
Object Type: Report
System: The UNT Digital Library
CSEWG SYMPOSIUM, A CSWEG RETROSPECTIVE. 35TH ANNIVERSARY CROSS SECTION EVALUATION WORKING GROUP, NOV. 5, 2001, BROOKHAVEN NATIONAL LABORATORY. (open access)

CSEWG SYMPOSIUM, A CSWEG RETROSPECTIVE. 35TH ANNIVERSARY CROSS SECTION EVALUATION WORKING GROUP, NOV. 5, 2001, BROOKHAVEN NATIONAL LABORATORY.

None
Date: November 5, 2001
Creator: Dunford, C.; Holden, N. & Pearlstein, S.
Object Type: Report
System: The UNT Digital Library
Development of a readout technique for the high data rate BTeV pixel detector at Fermilab (open access)

Development of a readout technique for the high data rate BTeV pixel detector at Fermilab

The pixel detector for the BTeV experiment at Fermilab provides digitized data from approximately 22 million silicon pixel channels. Portions of the detector are six millimeters from the beam providing a substantial hit rate and high radiation dose. The pixel detector data will be employed by the lowest level trigger system for track reconstruction every beam crossing. These requirements impose a considerable constraint on the readout scheme. This paper presents a readout technique that provides the bandwidth that is adequate for high hit rates, minimizes the number of radiation hard components, and satisfies all other design constraints.
Date: November 5, 2001
Creator: al., Bradley K Hall et
Object Type: Article
System: The UNT Digital Library
District of Columbia Issues: D.C. Workforce Reductions and Related Funding Issues (open access)

District of Columbia Issues: D.C. Workforce Reductions and Related Funding Issues

Correspondence issued by the General Accounting Office with an abstract that begins "This report reviews whether the DC government had the authority to use $18 million from the Financial Responsibility and Management Assistance Authority for severance payments during fiscal year 2000. GAO concludes that the District lacked the authority to use the $18 million in Section 157 funding for the fiscal year 2000 workforce reduction. District officials told GAO that they believed that they had the Financial Authority's approval to use 157 funding and, consequently, spent $14.3 million during fiscal year 2000 on workforce reduction activities. However, the District could not document that the Financial Authority had certified compliance with the requirements of Section 157 to authorize the use of the funds. The Financial Authority maintains that it did not approve the use of the funds by the District and had denied in writing the District's request for reimbursement for severance payments. The District accounted for the workforce reduction costs during fiscal year 2000 as if it had access to the Section 157 funding. The District concluded that, had the Section 157 funding been unavailable, one agency would have ended fiscal year 2000 with an operating deficit and two agencies …
Date: November 5, 2001
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Effusive-flow characterization of arbitrary size and geometry target/vapor transport systems: radioactive ion beam applications (open access)

Effusive-flow characterization of arbitrary size and geometry target/vapor transport systems: radioactive ion beam applications

The principal factors that severely limit intensities of short-lived radioactive ion beams produced by the Isotope Separator On-Line (ISOL) technique are time delays due to diffusion of radioactive species from solid or liquid target materials and their effusive-flow transport to the ion source. Although diffusion times can be reduced by proper design of short diffusion length, highly refractory targets, effusive-flow times are more difficult to assess. After diffusion from the target material, the species must travel through the target material and vapor transport system to the ion source. The time required for effusive-flow transport to the ion source depends on the conduction path, chemical reactions between the species and target material and materials of construction as well as the physical size and geometry of the transport system. We have developed a fast-valve (1 ms closing time) for introducing gaseous or vapor-state species into the target/vapor transport/ion source/system th at permits measurement of effusive-flow times for any gaseous or vaporous species (chemically active or chemically inactive) through any vapor transport system, independent of size and geometry. Characteristic times are determined from the exponential decay of the momentum analyzed ion beam intensity for the species.during effusive-flow through the vapor transport system under …
Date: November 5, 2001
Creator: Bilheux, J.-C.
Object Type: Article
System: The UNT Digital Library

Ensemble: 2001-11-05 – Global Rhythms

Access: Use of this item is restricted to the UNT Community
Ensemble performance at the UNT College of Music Winspear Hall.
Date: November 5, 2001
Creator: University of North Texas. 2:00 Steel Band.
Object Type: Sound
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Monday, November 5, 2001 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Monday, November 5, 2001

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: November 5, 2001
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
F-22 Raptor Aircraft Program (open access)

F-22 Raptor Aircraft Program

This report discusses the background information, analysis and the recent developments in the F-22 Raptor Aircraft Program. The F-22 program raises questions about its cost and the need for this aircraft, the capabilities it would have, and the number of these planes needed to meet military requirements. The F-22 has had strong congressional support, although some have criticized the program on grounds of cost, requirements, and coordination with other tactical aircraft programs. Deletion of procurement funds in the FY2000 defense appropriation bill passed by the House made the future of the program a major issue for House and Senate conferees in 1999.
Date: November 5, 2001
Creator: Bolkcom, Christopher
Object Type: Report
System: The UNT Digital Library
Fracture Variability and Hydrologic Implications at Yucca Mountain, Nevada (open access)

Fracture Variability and Hydrologic Implications at Yucca Mountain, Nevada

An understanding of the role of fractures at Yucca Mountain, Nevada, is needed to evaluate the suitability of the site to host a high-level nuclear waste repository. Current infiltration rates at Yucca Mountain require water to move through some fractures in the unsaturated welded units because the matrix porosity and permeability of these units are too small to accommodate the total flow. Though only about 20% of connected fractures are estimated to actively transmit water, flow and transport within fractures can greatly affect repository performance because fractures could be fast pathways for migration of radioactive particles. Under the current design, the potential repository would be located in a densely welded tuff sequence with highly variable fracture characteristics. This variability, resulting largely from the presence of lithophysal cavities, creates heterogeneous flow patterns through the unsaturated zone. Lithophysal cavities interrupt the continuity of fractures they intersect and may locally influence fracture propagation. In welded nonlithophysal zones, fractures tend to be longer and more widely spaced than in lithophysal zones, which generally display a greater number of closely spaced, short-length fractures. Seepage of water into potential waste-emplacement drifts will be affected by the fracture characteristics within the surrounding rock wall. Fractures with sufficient …
Date: November 5, 2001
Creator: Hinds, Jenifer
Object Type: Report
System: The UNT Digital Library
Freedom of Speech and Press: Exceptions to the First Amendment (open access)

Freedom of Speech and Press: Exceptions to the First Amendment

This report provides an overview of the major exceptions to the First Amendment — of the ways that the Supreme Court has interpreted the guarantee of freedom of speech and press to provide no protection or only limited protection for some types of speech.
Date: November 5, 2001
Creator: Cohen, Henry
Object Type: Report
System: The UNT Digital Library
Freedom of Speech and Press: Exceptions to the First Amendment (open access)

Freedom of Speech and Press: Exceptions to the First Amendment

The First Amendment to the United States Constitution provides that “Congress shall make no law . . . abridging the freedom of speech, or of the press. . . .” This language restricts government both more and less than it would if it were applied literally. It restricts government more in that it applies not only to Congress, but to all branches of the federal government, and to all branches of state and local government. It restricts government less in that it provides no protection to some types of speech and only limited protection to others. This report provides an overview of the major exceptions to the First Amendment — of the ways that the Supreme Court has interpreted the guarantee of freedom of speech and press to provide no protection or only limited protection for some types of speech.
Date: November 5, 2001
Creator: Cohen, Henry
Object Type: Report
System: The UNT Digital Library
[Funeral Program for Aileen Dorn Lorans, November 5, 2001] (open access)

[Funeral Program for Aileen Dorn Lorans, November 5, 2001]

Funeral program for Gracious Lady Aileen Dorn Lorans, born July 30, 1918 and died October 30, 2001. The funeral was held Monday, November 5, 2001 at Holy Redeemer Catholic Church, officiated by Rev. Msgr. John A. Wagner. Funeral arrangements were made through Sutton-Sutton Mortuary and she was buried in Fort Sam Houston National Cemetery near San Antonio, Texas.
Date: November 5, 2001
Creator: unknown
Object Type: Pamphlet
System: The Portal to Texas History
Geothermal Energy--Heat from the Earth: Idaho (open access)

Geothermal Energy--Heat from the Earth: Idaho

General use fact sheet about geothermal energy in Idaho. Idaho holds enormous resources - among the largest in the United States - of this clean, reliable form of energy that to date have barely been tapped.
Date: November 5, 2001
Creator: Boddy, S.
Object Type: Book
System: The UNT Digital Library
Limited Groundwater Investigation of The Atlas Corporation Moab Mill, Moab, Utah (open access)

Limited Groundwater Investigation of The Atlas Corporation Moab Mill, Moab, Utah

The project described in this report was conducted by personnel from Oak Ridge National Laboratory's Grand Junction Office (ORNL/GJ). The purpose was to refine information regarding groundwater contamination emanating from the Atlas Corporation's former uranium mill in Moab, Utah.
Date: November 5, 2001
Creator: Easterly, CE
Object Type: Report
System: The UNT Digital Library
Nuclear Weapons in Russia: Safety, Security, and Control Issues (open access)

Nuclear Weapons in Russia: Safety, Security, and Control Issues

None
Date: November 5, 2001
Creator: Woolf, Amy F.
Object Type: Report
System: The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 85, No. 55, Ed. 1 Monday, November 5, 2001 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 85, No. 55, Ed. 1 Monday, November 5, 2001

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: November 5, 2001
Creator: Johnson, Jennifer
Object Type: Newspaper
System: The Gateway to Oklahoma History
Optimization of signal extraction and front-end design in a fast,multigap ionization chamber (open access)

Optimization of signal extraction and front-end design in a fast,multigap ionization chamber

This paper discusses the criteria that have been adopted tooptimize the signal processing in a shower detector to be employed as LHCbeam luminosity monitor. The original aspect ofthis instrument is itsablility to operate on a bunch-by-bunch basis. This means that it mustperform accurate charge measurements at a repetition rate of 40 MHz. Thedetector must withstand an integrated dose of 100 Grad, that is, two tothree orders of magnitude beyond those expected in the experiments. Tomeet the above requirements, an ionization chamber consisting of severalgaps of thickness 0.5 mm, filled with a gas that is expected to beradiation resistant, has been designed. Crucial in the development of thesystem is the signal processing, as the electronic noise may set thedominant limitation to the accuracy of the measurement. This is relatedto two aspects. One is the short time available for the chargemeasurement. The second one is the presence of a few meter cable betweenthe detector and the preamplifier, as this must be located out of theregion of highest radiation field. Therefore the optimization of thesignal-to-noise ratio requires that the best configuration of the chambergaps be determined under the constraint of the presence of a cable ofnon-negligible length between detector and preamplifier. The remoteplacement …
Date: November 5, 2001
Creator: Datte, P.S.; Manfredi, P.F.; Millaud, J.E.; Placidi, M.; Ratti,L.; Speziali, V. et al.
Object Type: Article
System: The UNT Digital Library