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A 4 to 0.1 nm FEL Based on the SLAC Linac
The author show that using existing electron gun technology and a high energy linac like the one at SLAC, it is possible to build a Free Electron Laser operating around the 4 nm water window. A modest improvement in the gun performance would further allow to extend the FEL to the 0.1 nm region. Such a system would produce radiation with a brightness many order of magnitude above that of any synchrotron radiation source, existing or under construction, with laser power in the multigawatt region and subpicosecond pulse length.
Date:
June 5, 2012
Creator:
Pellegrini, C.
Object Type:
Article
System:
The UNT Digital Library
10 (micro)m and 5 (micro)m Pinhole-Assisted Point-Projection Backlit Imaging for NIF
Pinhole-assisted point-projection backlighting with 10{micro}m and 5 {micro}m pinholes placed a small distance of order 1 mm away from the backlighter produces images with large field of view and high resolution. Pinholes placed closely to high-power backlighter sources can vaporize and close due to x-ray driven ablation, thereby limiting the usefulness of this method. A study of streaked 1-D backlit imaging of 25 {micro}m W wires using the OMEGA laser is presented. The pinhole closure timescale for 10 {micro}m pinholes placed 0.45 mm and 1 mm distant from the backlighter is 1.3 ns and 2.2 ns, respectively. Similar timescales for 5 {micro}m pinholes is also presented. Successful wire imaging prior to pinhole closure is clearly demonstrated.
Date:
June 5, 2001
Creator:
Bullock, A. B.; Landen, O. L. & Bradley, D. K.
Object Type:
Article
System:
The UNT Digital Library
80th Texas Legislature, Regular Session, House Bill 1, Chapter 1428
Bill introduced by the Texas House of Representatives relating to appropriating money for the support of the Judicial, Executive, and Legislative Branches of the State government, for the construction of State buildings, and for State aid to public junior colleges, for the period beginning September 1, 2007 and ending August 31, 2009; authorizing and prescribing conditions, limitations, rules, and procedures for allocating and expending the appropriated funds; and declaring an emergency. Includes a proclamation issued by the Governor of the State of Texas, issuing a line-item veto of the General Appropriations Bill.
Date:
2007-06-05/2007-06-15
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
86th Texas Legislature, Regular Session, House Bill 259, Chapter 455
Bill introduced by the Texas House of Representatives relating to named driver insurance policies and certain related exclusions.
Date:
June 5, 2019
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
86th Texas Legislature, Regular Session, House Bill 1262, Chapter 456
Bill introduced by the Texas House of Representatives relating to the extended registration of certain vehicles not subject to inspection.
Date:
June 5, 2019
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
86th Texas Legislature, Regular Session, House Bill 2441, Chapter 457
Bill introduced by the Texas House of Representatives relating to the entitlement of a person who is disabled and elderly to receive a disabled residence homestead exemption from ad valorem taxation from one taxing unit and an elderly exemption from another taxing unit.
Date:
June 5, 2019
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
86th Texas Legislature, Regular Session, House Bill 2755, Chapter 458
Bill introduced by the Texas House of Representatives relating to certain county and public health district fees.
Date:
June 5, 2019
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
86th Texas Legislature, Regular Session, House Bill 2859, Chapter 459
Bill introduced by the Texas House of Representatives relating to the exemption from ad valorem taxation of precious metal held in a precious metal depository located in this state.
Date:
June 5, 2019
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
86th Texas Legislature, Regular Session, House Bill 3540, Chapter 460
Bill introduced by the Texas House of Representatives relating to the authority of a peace officer to release in lieu of arrest certain persons with an intellectual or developmental disability.
Date:
June 5, 2019
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
86th Texas Legislature, Regular Session, House Bill 4611, Chapter 461
Bill introduced by the Texas House of Representatives relating to certain distributions to the available school fund.
Date:
June 5, 2019
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
86th Texas Legislature, Regular Session, Senate Bill 494, Chapter 462
Bill introduced by the Texas Senate relating to certain procedures applicable to meetings under the open meetings law and the disclosure of public information under the public information law in the event of an emergency, urgent public necessity, or catastrophic event.
Date:
June 5, 2019
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
86th Texas Legislature, Regular Session, Senate Bill 1804
Bill introduced by the Texas Senate relating to public health and safety; authorizing the imposition of a tax.
Date:
June 5, 2019
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
Ability to Repay, Risk-Retention Standards, and Mortgage Credit Access
This report examines the developments associated with the implementation of mortgage lending reforms. The report begins with a summary of proposed ability to repay and risk-retention standards. Next, the report describes risky underwriting and financing practices that occurred prior to the mortgage crisis, followed by a discussion of how access to mortgage credit might be affected.
Date:
June 5, 2012
Creator:
Getter, Darryl E.
Object Type:
Report
System:
The UNT Digital Library
Acetylene-Gas Generator.
Patent for an acetylene-gas generator that provides an apparatus in which the parts may be readily detached for convenience in making repairs.
Date:
June 5, 1908
Creator:
Carl, Reinhold A.
Object Type:
Patent
System:
The Portal to Texas History
Acquisition of Leased Space for the U.S. Patent and Trademark Office
Correspondence issued by the General Accounting Office with an abstract that begins "This report reviews the data, assumptions, and conclusions reached by the General Services Administration (GSA) and the Patent and Trademark Office (PTO) on the acquisition of about two million square feet of leased space for the consolidation of PTO activities. This build-to-suit lease, valued at approximately $1.2 billion over its 20-year term, was signed in June 2000. this report responds to allegations and questions from two public interest groups about the PTO lease acquisition. One public interest group alleged that during the procurement process for the lease (1) GSA improperly awarded the lease to an offeror who had not complied with the solicitation's stated requirements, (2) GSA failed to compete the construction of the interior finishes phase of the project as required by law, and (3) GSA used an illegal cost-plus-a-percentage-of-cost contract. The second public interest group asked (1) whether the requirements in GSA's Solicitation for Offers for the PTO lease transformed the lease from an operating lease to a capital lease under Office of Management and Budget (OMB) Circular A-11; (2) whether the new facility will be able to house all PTO employees and contractors throughout the …
Date:
June 5, 2001
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Actinide (U-Th-Pa) concentrations and isotopic disequilibrium in surface soils and glassy fallout beads from historical nuclear tests
None
Date:
June 5, 2013
Creator:
Eppich, G R; Knight, K B; Jacomb-Hood, T W; Hutcheon, I D & Spriggs, G D
Object Type:
Article
System:
The UNT Digital Library
ADAPTING A CERTIFIED SHIPPING PACKAGE FOR STORAGE APPLICATIONS
For years shipping packages have been used to store radioactive materials at many DOE sites. Recently, the K-Area Material Storage facility at the Savannah River Site became interested in and approved the Model 9977 Shipping Package for use as a storage package. In order to allow the 9977 to be stored in the facility, there were a number of evaluations and modifications that were required. There were additional suggested modifications to improve the performance of the package as a storage container that were discussed but not incorporated in the design that is currently in use. This paper will discuss the design being utilized for shipping and storage, suggested modifications that have improved the storage configuration but were not used, as well as modifications that have merit for future adaptations for both the 9977 and for other shipping packages to be used as storage packages.
Date:
June 5, 2012
Creator:
Loftin, B. & Abramczyk, G.
Object Type:
Article
System:
The UNT Digital Library
Advanced Techniques for In-Situ Monitoring of Phase Transformations During Welding Using Synchrotron-Based X-Ray Diffraction
Understanding the evolution of microstructure in welds is an important goal of welding research because of the strong correlation between weld microstructure and weld properties. To achieve this goal it is important to develop a quantitative measure of phase transformations encountered during welding in order to ultimately develop methods for predicting weld microstructures from the characteristics of the welding process. To aid in this effort, synchrotron radiation methods have been developed at Lawrence Livermore National Laboratory (LLNL) for direct observation of microstructure evolution during welding. Using intense, highly collimated synchrotron radiation, the atomic structure of the weld heat affected and fusion zones can be probed in real time. Two synchrotron-based techniques, known as spatially resolved (SRXRD) and time resolved (TRXRD) x-ray diffraction, have been developed for these investigations. These techniques have now been used to investigate welding induced phase transformations in titanium alloys, low alloy steels, and stainless steel alloys. This paper will provide a brief overview of these methods and will discuss microstructural evolution during the welding of low carbon (AISI 1005) and medium carbon (AISI 1045) steels where the different levels of carbon influence the evolution of microstructures during welding.
Date:
June 5, 2005
Creator:
Elmer, J. W.; Palmer, T. A.; Zhang, W. & DebRoy, T.
Object Type:
Article
System:
The UNT Digital Library
ADVANCES IN IMPEDANCE THEORY
We review recent progress in the following areas of the impedance theory: calculation of impedance of tapers and small angle collimators; optical approximation and parabolic equation for the high-frequency impedance; impedance due to resistive inserts in a perfectly conducting pipe.
Date:
June 5, 2009
Creator:
Stupakov, G.
Object Type:
Article
System:
The UNT Digital Library
Aerodynamic characteristics at high and low subsonic Mach numbers of four NACA 6-series airfoil sections at angles of attack from -2 to 31 degrees
From Introduction: "The airfoil sections tested, which differ only in thickness ratio, were the NACA 64-006, 64-008, 64-010, and 641-012. Lift, drag, and pitching-moment data were obtained for Mach numbers of 0.3 to that for tunnel choke at angles of attack of -2^o to 31^o. The results of this investigation are reported herein."
Date:
June 5, 1953
Creator:
Wilson, Homer B., Jr. & Horton, Elmer A.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Characteristics of a 6-Percent-Thick Symmetrical Circular-Arc Airfoil Having a 30-Percent-Chord Trailing-Edge Flap at a Mach Number of 6.9
Memorandum presenting an investigation of the flow characteristics over a 6-percent-thick symmetrical circular-arc airfoil section with a 30-percent-chord trailing-edge flap at a Mach number of 6.90 and a Reynolds number of 1.65 x 10(sub 6). The model was tested over an angle-of-attack range of 0 to 16 degrees and a flap-deflection range of -16 degrees to 16 degrees. Results regarding pressure results and aerodynamic characteristics are provided.
Date:
June 5, 1956
Creator:
Ridyard, Herbert W. & Fetterman, David E., Jr.
Object Type:
Report
System:
The UNT Digital Library
Afghanistan: Government Formation and Performance
This report discusses the current Afghan government, which is rife with corruption and very limited in power, hence the continued presence of the Taliban and general worldwide pessimism about Afghanistan stabilization efforts. This report addresses issues such as ethnic diputes, President Hamid Karzai's re-election bid for August 2009, and the U.S.-Afghanistan relationship in particular. The Obama Administration is currently promoting, among other Afghanistan stabilization efforts, a "civilian surge" of additional U.S. personnel to Afghanistan.
Date:
June 5, 2009
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library
Afghanistan: Politics, Elections, and Government Performance
This report discusses the current political state of Afghanistan, as well as the Afghan government. This report also discusses Afghanistan's relationship with the United States, particularly U.S. efforts to urge President Hamid Karzai, to address corruption within the Afghan government. The report also includes discussion of election fraud and corruption in Afghanistan.
Date:
June 5, 2012
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library
Afghanistan: Politics, Elections, and Government Performance
This report discusses the current political state of Afghanistan, as well as the Afghan government. This report also discusses Afghanistan's relationship with the United States, particularly U.S. efforts to urge President Hamid Karzai, to address corruption within the Afghan government. The report also includes discussion of election fraud and corruption in Afghanistan.
Date:
June 5, 2012
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library