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0-2 kv Flash Tube Supplies (open access)

0-2 kv Flash Tube Supplies

In order to perform the various experiments with a bubble chamber, a high intensity flash tube is used. This report briefly describes the power supplies designed and constructed to power these lamps.
Date: March 15, 1962
Creator: Miller, D. M.
Object Type: Report
System: The UNT Digital Library
0-2 kv Flash Tube Supplies (open access)

0-2 kv Flash Tube Supplies

The power supplies designed and constructed to power high-intensity flash tubes are described. Three supplies, capable of charging 100 mfd to 2 kv with a repetltion rate of not less than 0.8 sec, are operated remotely from a control panel containing 3 powerstats. The power supplies are full wave center trapped rectifiers employing silicon rectifiers. (M.C.G.)
Date: March 15, 1962
Creator: Miller, D. M.
Object Type: Report
System: The UNT Digital Library
1 Outreach, Education and Domestic Market Enhancement 2 Export Promotion and Assistance (open access)

1 Outreach, Education and Domestic Market Enhancement 2 Export Promotion and Assistance

Geothermal Energy Association supports the US geothermal industry in its efforts to bring more clean geothermal energy on-line throughout the world. Activities designed to accomplish this goal include: (1) developing and maintaining data bases, web pages, (2) commissioning of special studies and reports, (3) preparing, printing and distributing brochures and newsletters, (4) developing exhibits and displays, and participating in trade shows, (5) designing, producing and disseminating audio-video materials, (6) monitoring and coordinating programs carried out by US DOE and other Federal agencies, (7) holding workshops to facilitate communication between researchers and industry and to encourage their recognition of emerging markets for geothermal technology, (8) attending conferences, making speeches and presentation, and otherwise interacting with environmental and other renewable energy organizations and coalitions, (9) hosting events in Washington, DC and other appropriate locations to educate Federal, State and local representatives, environmental groups, the news media, and other about the status and potential of geothermal energy, (10) conducting member services such as the preparation and distribution of a member newsletter related to operating and maintaining s useful and viable association, and (11) performing similar kinds of activities designed to inform others about geothermal energy. The activities of the export promotion aim to …
Date: March 15, 2004
Creator: Geothermal Energy Association
Object Type: Report
System: The UNT Digital Library
1 to 2 GeV/c beam line for hypernuclear and kaon research (open access)

1 to 2 GeV/c beam line for hypernuclear and kaon research

A kaon beam line operating in the range from 1.0 to 2.0 GeV/c is proposed. The line is meant for kaon and pion research in a region hitherto inaccessible to experimenters. Topics in hypernuclear and kaon physics of high current interest include the investigation of doubly strange nuclear systems with the K/sup -/,K/sup +/ reaction, searching for dibaryon resonances, hyperon-nucleon interactions, hypernuclear ..gamma.. rays, and associated production of excited hypernuclei. The beam line would provide separated beams of momentum analyzed kaons at intensities greater than 10/sup 6/ particles per spill with a momentum determined to one part in a thousand. This intensity is an order of magnitude greater than that currently available. 63 references.
Date: February 15, 1985
Creator: Chrien, R. E.
Object Type: Report
System: The UNT Digital Library

2.5" heavy pressure valve cast steel

Blueprint depicting technical details of Battleship Texas.
Date: January 15, 1914
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History

2.5" heavy pressure valve cast steel

Blueprint depicting technical details of Battleship Texas.
Date: January 15, 1914
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History
2-D electric fields and drifts near the magnetic separatrix in divertor tokamaks (open access)

2-D electric fields and drifts near the magnetic separatrix in divertor tokamaks

A 2-D calculation is presented for the transport of plasma in the edge region of a divertor tokamak solving continuity, momentum, and energy balance fluid equations. The model uses anomalous radial diffusion, including perpendicular ion momentum, and classical cross-field drifts transport. Parallel and perpendicular currents yield a self-consistent electrostatic potential on both sides of the magnetic separatrix. Outside the separatrix, the simulation extends to material divertor plates where the incident plasma is recycled as neutral gas and where the plate sheath and parallel currents dominate the potential structure. Inside the separatrix, various radial current terms - from viscosity, charge-exchange and poloidal damping, inertia, and {triangledown}B - contribute to the determining the potential. The model rigorously enforces cancellation of gyro-viscous and magnetization terms from the transport equations. The results emphasize the importance of E x B particle flow under the X-point which depends on the sign of the toroidal magnetic field. Radial electric field (E{sub y}) profiles at the outer midplane are small with weak shear when high L-mode diffusion coefficients are used and are large with strong shear when smaller H-mode diffusion coefficients are used. The magnitude and shear of the electric field (E{sub y}) is larger both when the …
Date: November 15, 1998
Creator: Mattor, N.; Porter, G. D.; Rognlien, T. D. & Ryutov, D. D.
Object Type: Article
System: The UNT Digital Library
2-D Modeling of Energy-z Beam Dynamics Using the LiTrack Matlab Program (open access)

2-D Modeling of Energy-z Beam Dynamics Using the LiTrack Matlab Program

Short bunches and the bunch length distribution have important consequences for both the LCLS project at SLAC and the proposed ILC project. For both these projects, it is important to simulate what bunch length distributions are expected and then to perform actual measurements. The goal of the research is to determine the sensitivity of the bunch length distribution to accelerator phase and voltage. This then indicates the level of control and stability that is needed. In this project I simulated beamlines to find the rms bunch length in three different beam lines at SLAC, which are the test beam to End Station A (ILC-ESA) for the ILC studies, Linac Coherent Light Source (LCLS) and LCLS-ESA. To simulate the beamlines, I used the LiTrack program, which does a 2-dimensional tracking of an electron bunch's longitudinal (z) and the energy spread beam (E) parameters. In order to reduce the time of processing the information, I developed a small program to loop over adjustable machine parameters. LiTrack is a Matlab script and Matlab is also used for plotting and saving and loading files. The results show that the LCLS in Linac-A is the most sensitive when looking at the ratio of change in …
Date: December 15, 2005
Creator: Cauley, S .K. & Woods, M.
Object Type: Report
System: The UNT Digital Library
A 3.3 MJ, Rb{sup +1} Driver Design Based on an Integrated Systems Analysis (open access)

A 3.3 MJ, Rb{sup +1} Driver Design Based on an Integrated Systems Analysis

A computer model for systems analysis of heavy ion drivers has been developed and used to evaluate driver designs for inertial fusion energy (IFE). The present work examines a driver for a close-coupled target design that requires less total beam energy but also smaller beam spots sizes than previous target designs. Design parameters and a cost estimate for a 160 beam, 3.3 MJ driver using rubidium ions (A = 85) are reported, and the sensitivity of the results to variations in selected design parameters is given.
Date: September 15, 2000
Creator: Meier, W. R.; Barnard, J. J. & Bangerter, R. O.
Object Type: Article
System: The UNT Digital Library

3.5" heavy pressure valve cast steel

Blueprint depicting technical details of Battleship Texas.
Date: January 15, 1914
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History

3.5" heavy pressure valve cast steel

Blueprint depicting technical details of Battleship Texas.
Date: January 15, 1914
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History

3" heavy pressure valve cast steel

Blueprint depicting technical details of Battleship Texas.
Date: January 15, 1914
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History

3" heavy pressure valve cast steel

Blueprint depicting technical details of Battleship Texas.
Date: January 15, 1914
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History
The 4-County News Bulletin (Castroville, Tex.), Vol. 19, No. 19, Ed. 1 Monday, August 15, 1977 (open access)

The 4-County News Bulletin (Castroville, Tex.), Vol. 19, No. 19, Ed. 1 Monday, August 15, 1977

Weekly newspaper from Castroville, Texas that includes local, state, and national news along with extensive advertising.
Date: August 15, 1977
Creator: Schott, Bobbie
Object Type: Newspaper
System: The Portal to Texas History
The 4-County News Bulletin (Castroville, Tex.), Vol. 20, No. 6, Ed. 1 Monday, May 15, 1978 (open access)

The 4-County News Bulletin (Castroville, Tex.), Vol. 20, No. 6, Ed. 1 Monday, May 15, 1978

Weekly newspaper from Castroville, Texas that includes local, state, and national news along with extensive advertising.
Date: May 15, 1978
Creator: Schott, Bobbie
Object Type: Newspaper
System: The Portal to Texas History

4" heavy pressure valve cast steel

Blueprint depicting technical details of Battleship Texas.
Date: January 15, 1914
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History

4" heavy pressure valve cast steel

Blueprint depicting technical details of Battleship Texas.
Date: January 15, 1914
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History
N >= 4 Supergravity Amplitudes from Gauge Theory at Two Loops (open access)

N >= 4 Supergravity Amplitudes from Gauge Theory at Two Loops

We present the full two-loop four-graviton amplitudes in N = 4, 5, 6 supergravity. These results were obtained using the double-copy structure of gravity, which follows from the recently conjectured color-kinematics duality in gauge theory. The two-loop four-gluon scattering amplitudes in N = 0, 1, 2 supersymmetric gauge theory are a second essential ingredient. The gravity amplitudes have the expected infrared behavior: the two-loop divergences are given in terms of the squares of the corresponding one-loop amplitudes. The finite remainders are presented in a compact form. The finite remainder for N = 8 supergravity is also presented, in a form that utilizes a pure function with a very simple symbol.
Date: February 15, 2012
Creator: Boucher-Veronneau, C. & Dixon, L. J.
Object Type: Article
System: The UNT Digital Library

5" gun AA Ammunition Hoist Hoisting Gear - General Arrgt.

Blueprint depicting technical details of Battleship Texas.
Date: September 15, 1923
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History
6 kv CAPACITOR CHARGING SUPPLY (open access)

6 kv CAPACITOR CHARGING SUPPLY

The power supplies designed and constructed to power high intensity flash tubes used in bubble chamber experiments are briefly described and are accompanied by a schematic diagram of the layout. (D.C.W.)
Date: March 15, 1962
Creator: Miller, D. M.
Object Type: Report
System: The UNT Digital Library
6 kv Capacitor Charging Supply (open access)

6 kv Capacitor Charging Supply

The power supplies designed and constructed to power high intensity flash tubes used in bubble chamber experiments are briefly described and are accompanied by a schematic diagram of the layout. (D.C.W.)
Date: March 15, 1962
Creator: Miller, D. M.
Object Type: Report
System: The UNT Digital Library

An 8 Classroom Addition to an Elementary School for Abilene Independent School District, Abilene, Texas: Floor Plans

Floor plans for Abilene Independent School District in Abilene, Texas. They feature wall edge lines, measurements, and labels.
Date: May 15, 1957
Creator: David S. Castle Co.
Object Type: Technical Drawing
System: The Portal to Texas History

8" Lever Operated Gate Valve

Blueprint depicting technical details of Battleship Texas.
Date: February 15, 1926
Creator: unknown
Object Type: Technical Drawing
System: The Portal to Texas History
9/11 Terrorism: Global Economic Costs (open access)

9/11 Terrorism: Global Economic Costs

This report provides a brief survey of the global economic costs of 9/11.
Date: September 15, 2004
Creator: Nanto, Dick K.
Object Type: Report
System: The UNT Digital Library