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Comparison between calculation and measurement of energy deposited by 800 MeV protons
The High Energy Transport Code, HETC, was obtained from the Radiation Shielding Information Center (RSIC) at Oak Ridge National Laboratory and altered as necessary to run on a CDC 7600 using the LTSS software in use at LLNL. HETC was then used to obtain calculated estimates of energy deposited, for comparison with a series of benchmark experiments done by LLNL. These experiments used proton beams of various energies incident on well-defined composite targets in good geometry. In this report, two aspects of the comparison between calculated and experimental energy depositions from an 800 MeV proton beam are discussed. Both aspects involve the fact that workers at SAI had previously used their version of HETC to calculate this experiment and reported their comparison with the measured data. The first aspect addressed is that their calculated data and LLNL calculations do not agree, suggesting an error in the conversion process from the RSIC code. The second aspect is not independent of the first, but is of sufficient importance to merit separate emphasis. It is that the SAI calculations agree well with experiments at the detector plate located some distance from the shower plate, whereas the LLNL calculations show a clearcut discrepancy there …
Date:
April 3, 1980
Creator:
Loewe, W.E.
Object Type:
Report
System:
The UNT Digital Library
CAMAC serial highway interface for the LSI-11
A CAMAC Serial Highway Interface has been designed for the Local Control and Instrumentation System of the Mirror Fusion Test Facility. There are over 50 distinguishable systems in the facility, each of which consists of the LSI-11 computer, fiber optic communication links, and the CAMAC system. The LSI-11 computer includes a 32k memory, serial modem interface and the CAMAC Serial Highway Interface.
Date:
April 3, 1980
Creator:
Lau, N.H.
Object Type:
Article
System:
The UNT Digital Library
Raft River condenser-tube examination
In the program of development of a water treatment for the 5 MW Raft River power plants' carbon steel heat rejection system, four carbon steel tubes were analyzed in this batch. The results of visual and scanning electron microscope examination of the tubes are presented. (MHR)
Date:
April 3, 1981
Creator:
Suciu, D. F.
Object Type:
Report
System:
The UNT Digital Library
Beam loss by collimation in a neutralizer duct
Beam fractions lost by collimation in a neutralizer duct are computed in x-x' phase space by using three examples of slab beam distributions under a broad range of duct dimensions, beam half-widths, and beam divergences. The results can be used to design compact neutralizers and to specify beam requirements. The computer code ILOST can be used under a broad range of beam conditions to compute the fraction lost by collimation.
Date:
April 3, 1980
Creator:
Hamilton, G.W. & Willmann, P.A.
Object Type:
Report
System:
The UNT Digital Library
Serial interprocessor communications system
A serial communications system based on the EIA RS232-C standard with modem control lines has been developed. The DLV11-E interface is used for this purpose. All handshaking is done with the modem control lines. This allows totally independent full duplex communication. The message format consists of eight bit data with odd parity and a sixteen bit checksum on the whole message. All communications are fully interrupt driven. A program was written to load a program into a remote LSI-11 using the serial line without bootstrap ROM.
Date:
April 3, 1980
Creator:
Labiak, W.; Siemens, P. & Bailey, C.
Object Type:
Article
System:
The UNT Digital Library
Math, science group ahead of schedule
Newspaper clipping discussing the success of the current class of the Texas Academy of Mathematics and Science.
Date:
April 3, 1989
Creator:
unknown
Object Type:
Clipping
System:
The UNT Digital Library
CO/sub 2/-laser polishing of fused silica surfaces for increased laser damage resistance at 1. 06. mu. m
Bare fused silica surfaces were prepared by subjecting the mechanically polished surface to a rastered cw CO/sub 2/ laser beam. Analysis shows that this processing causes: (a) removal of a uniform layer of fused silica; and (b) a probable re-fusing or healing of existing subsurface fractures. The fused silica removal rate is found to be a function of the laser intensity and scan rate. These surfaces are seen to have very low scatter and to be very smooth. In addition, they have exhibited entrance surface damage thresholds at 1.06 ..mu..m, and 1 nsec, which are substantially above those seen on the mechanically polished surface. When damage does occur, it tends to be at a few isolated points rather than the general uniform damage seen on the mechanicaly polished part. In addition to the damage results, we will discuss an observational technique used for viewing these surfaces which employs dark-field illumination.
Date:
April 3, 1980
Creator:
Temple, P. A.; Milam, D. & Lowdermilk, W. H.
Object Type:
Article
System:
The UNT Digital Library
Plasma engineering models of tandem mirror devices with high-field test-cell inserts
Plasma physics and engineering models of tandem mirror devices operated with a high-field technology test-cell insert in the central cell, which have been incorporated recently in the TMRBAR tandem mirror reactor physics code, are described. The models include particle and energy balance in the test-cell region as well as the interactions between the test-cell particles and those flowing through the entire device. The code calculations yield consistent operating parameters for the test-cell, central cell, and end cell systems. A benchmark case for the MFTF-..cap alpha..+T configuration is presented which shows good agreement between the code results and previous calculations.
Date:
April 3, 1985
Creator:
Fenstermacher, M.E. & Campbell, R.B.
Object Type:
Article
System:
The UNT Digital Library
[News Clip: In The Bank PKG]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10pm.
Date:
April 3, 1989, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
LGPC Candidate Screening
List of Dallas political candidates up for endorsement by the Lesbian/Gay Political Coalition. Includes handwritten notes and markings.
Date:
April 3, 1989
Creator:
Lesbian/Gay Political Coalition
Object Type:
Text
System:
The UNT Digital Library
The Tulia Herald (Tulia, Tex.), Vol. 78, No. 14, Ed. 1 Thursday, April 3, 1986
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
April 3, 1986
Creator:
Tooley, Wendell
Object Type:
Newspaper
System:
The Portal to Texas History
The Tulia Herald (Tulia, Tex.), Vol. 72, No. 14, Ed. 1 Thursday, April 3, 1980
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
April 3, 1980
Creator:
Tooley, Wendell
Object Type:
Newspaper
System:
The Portal to Texas History
[Letter from the Department of the Air Force to Eleanor Brown, April 3, 1984]
Letter from Dale G. Johnson from the Department of the Air Force to Eleanor Brown notifying her that she has been awarded the World War II Victory Medal and the Honorable Service Lapel Pin.
Date:
April 3, 1984
Creator:
Johnson, Dale G.
Object Type:
Letter
System:
The Portal to Texas History
The Bogata News (Bogata, Tex.), Vol. 75, No. 26, Ed. 1 Thursday, April 3, 1986
Weekly newspaper from Bogata, Texas that includes local, state, and national news along with advertising.
Date:
April 3, 1986
Creator:
Nichols, Nanalee & Nichols, Thomas
Object Type:
Newspaper
System:
The Portal to Texas History
[News Clip: School VP]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
April 3, 1980, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Police training]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
April 3, 1980, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Bridgeport (water)]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
April 3, 1980, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Cop Killing]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
April 3, 1980, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Habitual Drivers]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
April 3, 1980, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Habitual Drivers]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
April 3, 1980, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Bridgeport water]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
April 3, 1980, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Modeling and optimization of a test-cell upgrade for MFTF-B operating in the high neutron wall loading mode
Models of the plasma particle and power balances in a tandem mirror with a high-field test-cell insert in the central cell have been used to calculate operating points for test-cell upgrades of the MFTF-B configuration. The code results have been benchmarked against the proposal plasma parameters for the MFTF-..cap alpha..+T configuration operating in the high neutron wall loading mode. Some parametric studies have been done. Using the results from these parametrics an optimized set of operating parameters for an MFTF-..cap alpha..+T-like configuration with a test-cell which will accommodate two 1.5 m long blanket test modules has been generated. This operating point has the same test-cell neutron wall loading as the original configuration and lower input powers to other systems in the device. The neutral beam power per unit blanket module length is also somewhat reduced in the optimized case.
Date:
April 3, 1985
Creator:
Fenstermacher, M.E.
Object Type:
Article
System:
The UNT Digital Library
Modeling and optimization of operating parameters for a test-cell option of the Fusion Power Demonstration-II tandem mirror design
Models of tandem mirror devices operated with a test-cell insert have been used to calculate operating parameters for FPD-II+T, an upgrade of the Fusion Power Demonstration-II device. Two test-cell configurations were considered, one accommodating two 1.5 m blanket test modules and the other having four. To minimize the cost of the upgrade, FPD-II+T utilizes the same coil arrangement and machine dimensions outside of the test cell as FPD-II, and the requirements on the end cell systems have been held near or below those for FPD-II. The maximum achievable test cell wall loading found for the short test-cell was 3.5 MW/m/sup 2/ while 6.0 MW/m/sup 2/ was obtainable in the long test-cell configuration. The most severe limitation on the achievable wall loading is the upper limit on test-cell beta set by MHD stability calculations. Modification of the shape of the magnetic field in the test-cell by improving the magnet design could raise this beta limit and lead to improved test-cell performance.
Date:
April 3, 1985
Creator:
Haney, S.W. & Fenstermacher, M.E.
Object Type:
Article
System:
The UNT Digital Library
Terrain-Responsive Atmospheric Code (TRAC) for plume growth and dispersion in complex terrain
Use of atmospheric dispersion models to assess pollutant impacts in complex terrain is increasing. However, the temporally and spatially varying wind and turbulence fields in mountainous areas often invalidate the assumptions of straight-line flow and horizontal homogeneity inherent in standard plume models. A dispersion model was recently developed at the Rocky Flats Plant to realistically simulate dispersion processes in complex terrain. The new model treats pollutant releases as a series of overlapping ellipsoidal puffs. The ends of each puff axis are defined by ''tracer'' particles, which are independently advected through the modeled windfield. The puff axes are not, in general, orthogonal. Thus, a puff can develop an arbitrary shape in response to differential diffusion rates, horizontal convergence and divergence, vertical shear, surface reflection, and gravitational settling. The model includes modules for puff transport, diffusion, wet and dry deposition, resuspension, surface roughness effects, ingrowth, decay, and external and internal dosimetry. This report focuses on the simulation of puff growth and shape.
Date:
April 3, 1985
Creator:
Hodgin, C.R.
Object Type:
Report
System:
The UNT Digital Library