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Analytical methods of electrode design for a relativistic electron gun
The standard paraxial ray equation method for the design of electrodes for an electrostatically focused gun is extended to include relativistic effects and the effects of the beam's azimuthal magnetic field. Solutions for parallel and converging beams are obtained and the predicted currents are compared against those measured on the High Brightness Test Stand. 4 refs., 2 figs.
Date:
May 9, 1985
Creator:
Caporaso, G.J.; Cole, A.G. & Boyd, J.K.
Object Type:
Article
System:
The UNT Digital Library
Numerical simulation of an accelerator injector
Accelerator injector designs have been evaluated using two computer codes. The first code self consistently follows relativistic particles in two dimensions. Fields are obtained in the Darwin model which includes inductive effects. This code is used to study cathode emission and acceleration to full injector voltage. The second code transports a fixed segment of a beam along the remainder of the beam line. Using these two codes the effects of electrode configuration on emittance, beam quality and beam transport have been studied.
Date:
May 9, 1985
Creator:
Boyd, J.K.; Caporaso, G.J. & Cole, A.G.
Object Type:
Article
System:
The UNT Digital Library
Brightness measurements on the Livermore high brightness test stand
Several techniques using small radius collimating pipes with and without axial magnetic fields to measure the brightness of an extracted 1 - 2 kA, 1 - 1.5 MeV electron beam will be described. The output beam of the High Brightness Test Stand as measured by one of these techniques is in excess of 2 x 10/sup 5/ amp/cm/sup 2//steradian. 5 refs., 4 figs.
Date:
May 9, 1985
Creator:
Caporaso, G.J. & Birx, D.L.
Object Type:
Article
System:
The UNT Digital Library
[News Clip: Curry & Cops]
Video footage from the WBAP-TV station in Fort Worth, Texas, to accompany a news story by Ron Trumbla about the investigation by Tarrant County District Attorney Tim Curry into an incident that resulted in the fatal shooting of teenager David Jefferson by a Fort Worth Police Officer and the shooting of police officer Kevin George by a bystander. The story discusses allegations by the Fort Worth Black Bar Association that a secret recording revealed Curry's intentions to not indict the involved officers. The story includes an interview with Curry who discusses his meeting with the Dallas Police Association.
Date:
May 9, 1985
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Sylvia]
Video footage from the WBAP-TV station in Fort Worth, Texas, to accompany a news story by Bobbie Wygant about country music perfofmer Sylvia (Sylvia Jane Hutton) and her songs "Falling in Love," and "Nobody." Sylvia would be performing at the Dallas Fairmont Hotel. This story aired at 5:00 P.M.
Date:
May 9, 1985
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Indians]
Video footage from the WBAP-TV station in Fort Worth, Texas, to accompany a news story by Robert Elliot about the Kickapoo Indians of Eagle Pass, Texas and their reaction to land given to them by the government. The footage includes footage of the Kickapoo people, an interview with an unidentified representative and tribal elder, and a statement from Jim McLeod, Land Acquisition Committee. This story aired at 12:00 P.M.
Date:
January 9, 1985
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Babysitters]
Video footage from the WBAP-TV station in Fort Worth, Texas, to accompany a news story about a pilot program sponsored by the Fort Worth First Texas Council of Campire to train volunteers to understand the needs of disabled children. This story focuses on teenager Linda who completed the program and is now babysitting Jennifer Ritter who has Downs Syndrome. The story includes footage of Linda and Jennifer playing and parents Norm and Nancy Ritter returning home.
Date:
May 9, 1985
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
The Tulia Herald (Tulia, Tex.), Vol. 77, No. 19, Ed. 1 Thursday, May 9, 1985
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
May 9, 1985
Creator:
Tooley, Wendell
Object Type:
Newspaper
System:
The Portal to Texas History
Advanced multi-dimensional method for structural and hydrodynamic analyses of LMFBR piping systems
Maintaining the structural integrity of the piping system of Liquid Metal Fast Breeder Reactors (LMFBRs) is essential to the safe operation of the reactor and steam supply systems. In the safety analysis various transient loads can be imposed on the piping systems, which may pose threats to the integrity of the piping structure. These transient loads can be classified into two categories. The first represents dynamic loads resulting from the hydrodynamic pressure-wave propagation or seismic events. The second represents static or quasi-dynamic loads generated by thermal wave propagation, normal operation transient, or creep phenomena. At Argonne National Laboratory, a multi-dimensional method has been developed for the integrated analysis of piping systems under these transient loading conditions. It utilizes a 2-D implicit finite-difference hydrodynamics in conjunction with a 3-D explicit finite-element structural analysis.
Date:
April 9, 1985
Creator:
Wang, C. Y. & Zeuch, W. R.
Object Type:
Article
System:
The UNT Digital Library
[News Clip: Gourmet gadgets]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 9, 1985, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Bagsby]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
April 9, 1985, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Prisons]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 9, 1985, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Gladney picket]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
February 9, 1985, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Radio Shack]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
March 9, 1985, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
New concepts for drift pumping a thermal barrier with rf
Pump neutral beams, which are directed into the loss cone of the TMX-U plugs, are normally used to pump ions from the thermal barriers. Because these neutral beams introduce cold gas that reduces pumping efficiency, and require a straight line entrance and exit from the plug, alternate methods are being investigated to provide barrier pumping. To maintain the thermal barrier, either of two classes of particles can be pumped. First, the collisionally trapped ions can be pumped directly. In this case, the most promising selection criterion is the azimuthal drift frequency. Second, the excess sloshing-ion density can be removed, allowing the use of increased sloshing-beam density to pump the trapped ions. The selection mechanism in this case is the Doppler-shifted ion-cyclotron resonance of the high-energy sloshing-ions (3 keV less than or equal to U/sub parallel/ less than or equal to 10 keV).
Date:
May 9, 1985
Creator:
Barter, J.D.; Baldwin, D.; Chen, Y. & Poulsen, P.
Object Type:
Article
System:
The UNT Digital Library
Neutron flux, spectrum, and dose equivalent measurements for a 4500-W(th) /sup 238/PuO/sub 2/ general purpose heat source
The total emission rate is (4.5 +- 0.4) 10/sup 7/ n/s, and the average neutron energy is (1.64 +- 0.07) MeV. The factor for converting from neutron fluence to dose equivalent for this spectrum is (3.10 +- 0.24) 10/sup -5/ mRem/n-cm/sup -2/. The factor for converting from neutron fluence to tissue absorbed dose is (3.18 +- 0.26) 10/sup -6/ mRad/n-cm/sup -2/.
Date:
May 9, 1985
Creator:
Anderson, M.E.
Object Type:
Report
System:
The UNT Digital Library
News Journal (Mannford, Okla.), Vol. 66, No. 5, Ed. 1 Wednesday, January 9, 1985
Weekly newspaper from Mannford and Drumright, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 9, 1985
Creator:
Hopper, Ellie
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Beta-delayed fission calculations for the astrophysical r-process
We discuss RPA calculations of the Gamow-Teller properties of neutron-rich nuclei to study the effect of ..beta..-delayed fission and neutron emission on the production of Th, U and Pu chronometric nuclei in the astrophysical r-process. We find significant differences in the amount of ..beta..-delayed fission when compared with the recent calculations of Thielemann et al. (1983). In the simplest case of a constant abundance along the r-process path, however, the inferred production ratios in both calculations are similar.
Date:
October 9, 1985
Creator:
Meyer, B. S.; Howard, W. M.; Mathews, G. J.; Moeller, P. & Takahashi, K.
Object Type:
Article
System:
The UNT Digital Library
Shell-model calculations of beta-decay rates for s- and r-process nucleosyntheses
Examples of large-basis shell-model calculations of Gamow-Teller ..beta..-decay properties of specific interest in the astrophysical s- and r- processes are presented. Numerical results are given for: (1) the GT-matrix elements for the excited state decays of the unstable s-process nucleus /sup 99/Tc; and (2) the GT-strength function for the neutron-rich nucleus /sup 130/Cd, which lies on the r-process path. The results are discussed in conjunction with the astrophysics problems. 23 refs., 3 figs.
Date:
October 9, 1985
Creator:
Takahashi, K.; Mathews, G. J. & Bloom, S. D.
Object Type:
Article
System:
The UNT Digital Library
[News Clip: Utility theft]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
January 9, 1985, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Tyson]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
April 9, 1985, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
The Cherokeean. (Rusk, Tex.), Vol. 136, No. 13, Ed. 1 Thursday, May 9, 1985
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
May 9, 1985
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Rio Grande Herald (Rio Grande City, Tex.), Vol. 39, No. 28, Ed. 1 Thursday, May 9, 1985
Weekly newspaper from Rio Grande City, Texas that includes local, state and national news along with extensive advertising.
Date:
May 9, 1985
Creator:
Roberts, Kenneth
Object Type:
Newspaper
System:
The Portal to Texas History
[Letter from Dolly D. Adams to Links Sisters - September 9, 1985]
Letter from Dolly D. Adams to members of The Links, Inc. She is enclosing a copy of the minutes from the 1982 National Assembly held in Philadelphia, Pennsylvania.
Date:
September 9, 1985
Creator:
Links, Inc.
Object Type:
Letter
System:
The Portal to Texas History