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1+ -n+ ECR Ion Source Development Test Stand (open access)

1+ -n+ ECR Ion Source Development Test Stand

A test stand for the investigation of 1+-n+ charge boosting using an ECR ion sources is currently being assembled at the Texas A&M Cyclotron Institute. The ultimate goal is to relate the charge-boosting of ions of stable species to possible charge-boosting of ions of radioactive species extracted from the diverse, low-charge-state ion sources developed for radioactive ion beams.
Date: April 7, 2006
Creator: May, Donald P.
Object Type: Report
System: The UNT Digital Library
A 50-100 kWe gas-cooled reactor for use on Mars. (open access)

A 50-100 kWe gas-cooled reactor for use on Mars.

In the space exploration field there is a general consensus that nuclear reactor powered systems will be extremely desirable for future missions to the outer solar system. Solar systems suffer from the decreasing intensity of solar radiation and relatively low power density. Radioisotope Thermoelectric Generators are limited to generating a few kilowatts electric (kWe). Chemical systems are short-lived due to prodigious fuel use. A well designed 50-100 kWe nuclear reactor power system would provide sufficient power for a variety of long term missions. This thesis will present basic work done on a 50-100 kWe reactor power system that has a reasonable lifespan and would function in an extraterrestrial environment. The system will use a Gas-Cooled Reactor that is directly coupled to a Closed Brayton Cycle (GCR-CBC) power system. Also included will be some variations on the primary design and their effects on the characteristics of the primary design. This thesis also presents a variety of neutronics related calculations, an examination of the reactor's thermal characteristics, feasibility for use in an extraterrestrial environment, and the reactor's safety characteristics in several accident scenarios. While there has been past work for space reactors, the challenges introduced by thin atmospheres like those on Mars …
Date: April 1, 2006
Creator: Peters, Curtis D. (.)
Object Type: Report
System: The UNT Digital Library
300 Area D4 Project 1st Quarter Fiscal Year 2006 Building Completion Report (open access)

300 Area D4 Project 1st Quarter Fiscal Year 2006 Building Completion Report

This report documents the deactivation, decontamination, decommissioning, and demolition of the MO-052, 3225, 334, 334A, and 334-TF Buildings in the 300 Area of the Hanford Site. The D4 of these facilities included characterization, engineering, removal of hazardous and radiologically contaminated materials, equipment removal, utility disconnection, deactivation, decontamination, demolition of the structure, and stabilization or removal of the remaining slab and foundation as appropriate.
Date: April 20, 2006
Creator: Smith, David S.
Object Type: Report
System: The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 35, No. 26, Ed. 1 Friday, April 7, 2006 (open access)

15th Street News (Midwest City, Okla.), Vol. 35, No. 26, Ed. 1 Friday, April 7, 2006

Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date: April 7, 2006
Creator: Waltman, Erin
Object Type: Newspaper
System: The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 35, No. 27, Ed. 1 Friday, April 14, 2006 (open access)

15th Street News (Midwest City, Okla.), Vol. 35, No. 27, Ed. 1 Friday, April 14, 2006

Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date: April 14, 2006
Creator: Waltman, Erin
Object Type: Newspaper
System: The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 35, No. 28, Ed. 1 Friday, April 21, 2006 (open access)

15th Street News (Midwest City, Okla.), Vol. 35, No. 28, Ed. 1 Friday, April 21, 2006

Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date: April 21, 2006
Creator: Waltman, Erin
Object Type: Newspaper
System: The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 35, No. 29, Ed. 1 Friday, April 28, 2006 (open access)

15th Street News (Midwest City, Okla.), Vol. 35, No. 29, Ed. 1 Friday, April 28, 2006

Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date: April 28, 2006
Creator: Waltman, Erin
Object Type: Newspaper
System: The Gateway to Oklahoma History
2001 DC Lecture Series: The New Biology - Challenges and Opportunities (open access)

2001 DC Lecture Series: The New Biology - Challenges and Opportunities

The Whitehead Institute for Biomedical Research, in collaboration with Center for Strategic and International Studies (CSIS), developed a series of seminars, ''The New Biology: Challenges and Opportunities'', to stimulate dialogue between leaders in science, medicine, law, biotechnology and senior government policymakers on matters that will shape much of the genomic revolution's impact on individuals and institutions in this country.
Date: April 11, 2006
Creator: unknown
Object Type: Report
System: The UNT Digital Library
[2005-2006 End of Year Slideshow CD Cover] (open access)

[2005-2006 End of Year Slideshow CD Cover]

A document with the cover of a slideshow's CD on it. It is titled "University of North Texas League of Professional Women 'Changing the Face of Leadership, One Woman at a Time' by Dana Tiger 2005-2006 End of Year Slide Show". There is a picture of Mount Rushmore drawn as women in the center. And there is a website at the bottom.
Date: April 18, 2006
Creator: University of North Texas. Multicultural Center.
Object Type: Text
System: The UNT Digital Library
2005 Annual Health Physics Report for HEU Transparency Program (open access)

2005 Annual Health Physics Report for HEU Transparency Program

During the 2005 calendar year, LLNL provided health physics support for the Highly Enriched Uranium Transparency Program (HEU-TP) in external and internal radiation protection and technical expertise into matters related to BDMS radioactive sources and Russian radiation safety regulatory compliance. For the calendar year 2005, there were 161 person-trips that required dose monitoring of the U.S. monitors. Of the 161 person-trips, 149 person-trips were SMVs and 12 person-trips were Transparency Monitoring Office (TMO) trips. Additionally, there were 11 monitoring visits by TMO monitors to facilities other than UEIE and 3 to UEIE itself. There were two monitoring visits (source changes) that were back to back with 16 monitors. Each of these concurring visits were treated as single person-trips for dosimetry purposes. Counted individually, there were 191 individual person-visits in 2005. The LLNL Safety Laboratories Division provided the dosimetry services for the HEU-TP monitors.
Date: April 21, 2006
Creator: Radev, R
Object Type: Report
System: The UNT Digital Library
2005 Applied and Environmental Microbiology Gordon Conference July 24-29, 2005 (open access)

2005 Applied and Environmental Microbiology Gordon Conference July 24-29, 2005

This report is about Applied and Environmental Microbiology on Gordon Conference
Date: April 14, 2006
Creator: Kenneth Nealson, Nancy Ryan Gray
Object Type: Article
System: The UNT Digital Library
2005 BRAC Commission Box-File List (open access)

2005 BRAC Commission Box-File List

2005 BRAC Commission Box-File List, Records Tables, Audio/Video, Army Team Review and Analysis Material
Date: April 4, 2006
Creator: United States. Defense Base Closure and Realignment Commission.
Object Type: Text
System: The UNT Digital Library
21st Century Locomotive Technology: Quarterly Technical Status Report 12 DOE/AL68284-TSR12 (open access)

21st Century Locomotive Technology: Quarterly Technical Status Report 12 DOE/AL68284-TSR12

A unit pump system was installed on the single cylinder engine. The performance entitlement of the high-pressure common rail system at notch 4 and notch 8 was determined, and data was also compared with a production design multi-cylinder engine. Vibration testing of a hybrid-bus-design battery revealed extensive insulation wear. The vendor initiated design activities to address vibration. A cell-level test program was initiated to study battery current flow at room temperature and develop limits. The robustness and sub-optimal simplified implementation of fuel optimization algorithms was studied.
Date: April 14, 2006
Creator: Salasoo, Lembit; Topinka, Jennifer & Houpt, Paul
Object Type: Report
System: The UNT Digital Library
3rd year final contractor report for: U.S. Department of Energy Stewardship Science Academic Alliances Program Project Title: Detailed Measurements of Rayleigh-Taylor Mixing at Large and Small Atwood Numbers (open access)

3rd year final contractor report for: U.S. Department of Energy Stewardship Science Academic Alliances Program Project Title: Detailed Measurements of Rayleigh-Taylor Mixing at Large and Small Atwood Numbers

This project had two major tasks: Task 1. The construction of a new air/helium facility to collect detailed measurements of Rayleigh-Taylor (RT) mixing at high Atwood number, and the distribution of these data to LLNL, LANL, and Alliance members for code validation and design purposes. Task 2. The collection of initial condition data from the new Air/Helium facility, for use with validation of RT simulation codes at LLNL and LANL. This report describes work done in the last twelve (12) months of the project, and also contains a summary of the complete work done over the three (3) life of the project. As of April 1, 2006, the air/helium facility (Task 1) is now complete and extensive testing and validation of diagnostics has been performed. Initial condition studies (Task 2) is also comp lete. Detailed experiments with air/helium with Atwood numbers up to 0.1 have been completed, and Atwood numbers of 0.25. Within the last three (3) months we have been able to successfully run the facility at Atwood numbers of 0.5. The progress matches the project plan, as does the budget. We have finished the initial condition studies using the water channel, and this work has been accepted for …
Date: April 14, 2006
Creator: Andrews, Malcolm J.
Object Type: Report
System: The UNT Digital Library
3w Transmitted Beam Diagnostic at the Omega Laser Facility (open access)

3w Transmitted Beam Diagnostic at the Omega Laser Facility

A 3{omega} transmitted beam diagnostic has been commissioned on the Omega Laser at the Laboratory for Laser Energetics, University of Rochester [Soures et.al., Laser Part. Beams 11 (1993)]. Transmitted light from one beam is collected by a large focusing mirror and directed onto a diagnostic platform. The near field of the transmitted light is imaged; the system collects information from twice the original f-cone of the beam. Two gated optical cameras capture the near field image of the transmitted light. Thirteen spatial positions around the measurement region are temporally resolved using fast photodiodes to allow a measure of the beam spray evolution. The Forward stimulated Raman scattering and forward simulated Brillion scattering are spectrally and temporally resolved at 5 independent locations within twice the original f-cone. The total transmitted energy is measured in two spectral bands ({delta}{lambda} < 400 nm and {delta}{lambda} > 400 nm).
Date: April 24, 2006
Creator: Froula, D. H.; Rekow, V.; Sorce, C.; Piston, K.; Knight, R.; Alvarez, S. et al.
Object Type: Article
System: The UNT Digital Library
["6th Annual First Ladies Luncheon"] captions transcript

["6th Annual First Ladies Luncheon"]

Video footage from The Black Academy of Arts and Letters recorded during the 6th annual "First Ladies Luncheon" held on April 16th, 2006. The luncheon features speaker Mrs. Michelle Murphy and others talking on the topic of the role of Black churches in preserving the cultural heritage of the African American experience. The footage shows a podium surrounded by tables seated with well-dressed women where speakers and performers are exhibited.
Date: April 22, 2006
Creator: unknown
Object Type: Video
System: The UNT Digital Library
[6th Annual Ladies Luncheon] captions transcript

[6th Annual Ladies Luncheon]

Video recording from The Black Academy of Arts and Letters recorded during their 6th Annual Ladies Luncheon event in 2006. This video features speaker Mrs. Michelle Murphy and others talking on the topic of the role of Black churches in preserving the cultural heritage of the African American experience. The video shows some performances during the event.
Date: April 22, 2006
Creator: unknown
Object Type: Video
System: The UNT Digital Library
Abandoned Mine Reclamation Fee on Coal (open access)

Abandoned Mine Reclamation Fee on Coal

This report summarizes the problems that surround the Abandoned Mine Reclamation Fund or Abandoned Mine Land (AML) Fund. This report also includes information on the history of the fund and fees, such as congress extending the fees it imposes six times. Nevertheless, one of the central problems in the report is extending the fees further.
Date: April 24, 2006
Creator: Noto, Nonna A.
Object Type: Report
System: The UNT Digital Library
Abilene Philharmonic Playbill: April 22, 2006 (open access)

Abilene Philharmonic Playbill: April 22, 2006

Program for an Abilene Philharmonic concert that ran on April 22nd (Pop III) during the 56th season. It includes information about the pieces performed, artists and musicians, and advertising from local companies.
Date: April 2006
Creator: Abilene Philharmonic
Object Type: Pamphlet
System: The Portal to Texas History
Absolute Measurement of Electron Cloud Density in a Positively-Charged Particle Beam (open access)

Absolute Measurement of Electron Cloud Density in a Positively-Charged Particle Beam

Clouds of stray electrons are ubiquitous in particle accelerators and frequently limit the performance of storage rings. Earlier measurements of electron energy distribution and flux to the walls provided only a relative electron cloud density. We have measured electron accumulation using ions expelled by the beam. The ion energy distribution maps the depressed beam potential and gives the dynamic cloud density. Clearing electrode current reveals the static background cloud density, allowing the first absolute measurement of the time-dependent electron cloud density during the beam pulse.
Date: April 27, 2006
Creator: Kireeff Covo, Michel; Molvik, Arthur W.; Friedman, Alex; Vay, Jean-Luc; Seidl, Peter A.; Logan, Grant et al.
Object Type: Article
System: The UNT Digital Library
Acoustic Energy: An Innovative Technology for Stimulating Oil Wells (open access)

Acoustic Energy: An Innovative Technology for Stimulating Oil Wells

The objective of this investigation was to demonstrate the effectiveness of sonication in reducing the viscosity of heavy crude oils. Sonication is the use of acoustic or sound energy to produce physical and/or chemical changes in materials, usually fluids. The goal of the first project phase was to demonstrate a proof of concept for the project objective. Batch tests of three commercially available, single-weight oils (30-, 90-, and 120-wt) were performed in the laboratory. Several observations and conclusions were made from this series of experiments. These include the following: (1) In general, the lower the acoustic frequency, the greater the efficiency in reducing the viscosity of the oils; (2) Sonication treatment of the three oils resulted in reductions in viscosity that ranged from a low of 31% to a high of 75%; and (3) The results of the first phase of the project successfully demonstrated that sonication could reduce the viscosity of oils of differing viscosity. The goal of the second project phase was to demonstrate the ability of sonication to reduce the viscosity of three crude oils ranging from a light crude to a heavy crude. The experiments also were designed to examine the benefits of two proprietary chemical …
Date: April 30, 2006
Creator: Edgar, Dorland E.; Peters, Robert W.; Johnson, Donald O.; Paulsen, P. David & Roberts, Wayne
Object Type: Report
System: The UNT Digital Library
Actinide Targets for Neutron Cross Section Measurements (C) (open access)

Actinide Targets for Neutron Cross Section Measurements (C)

The Advanced Fuel Cycle Initiative (AFCI) and the Generation IV Reactor Initiative have demonstrated a lack of detailed neutron cross-sections for certain "minor" actinides, those other than the most common (235U, 238U, and 239Pu). For some closed-fuel-cycle reactor designs more than 50% of reactivity will, at some point, be derived from “minor” actinides that currently have poorly known (n,g) and (n,f) cross sections. A program of measurements under AFCI has begun to correct this. One of the initial hurdles has been to produce well-characterized, highly isotopically enriched, and chemically pure actinide targets on thin backings. Using a combination of resurrected techniques and new developments, we have made a series of targets including highly enriched 240Pu, and 242Pu. Thus far, we have electrodeposited these actinide targets. In the future, we plan to study reductive distillation to achieve homogeneous, adherent targets on thin metal foils and polymer backings. As we move forward, separated isotopes become scarcer, and safety concerns become greater. The chemical purification and electodeposition techniques will be described.
Date: April 1, 2006
Creator: Baker, J. D. & McGrath, C. A.
Object Type: Article
System: The UNT Digital Library

[Actor approaching other actor]

Photograph of actors during an outdoor performance of William Shakespeare's Love's Labour's Lost outside the Union Building on the UNT campus. They are standing at the base of the Schrader Pavilion, which was used as the stage for the production.
Date: April 2, 2006
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[Actor falling into another]

Photograph of two actors during an outdoor performance of William Shakespeare's Love's Labour's Lost outside the Union Building on the UNT campus. The one in yellow is falling towards the one in black who is also holding his arm. They are beside one of the trees in front of the Schrader Pavilion, which was used for the production's stage.
Date: April 2, 2006
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library