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[Photograph 2012.201.B0136.0086]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Tulsa -- Country-western singer Roy Clark will lead a group of entertainers on an 18-concert tour of the Soviet Union."
Date:
October 1, 1975
Creator:
ABC DOT
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Neutron-induced mutation experiments. Progress report, March 1, 1975-- February 29, 1976
The relative mutagenic effectiveness of neutrons of different energies were compared with x radiation in mice and Drosophila oogonia employing X-linked recessive lethal and specific locus mutation tests. The energies and doses used were 0.68 MeV, 2 MeV, and 6 MeV (250 and 500$sup 0$R), and 15 MeV (250, 500, and 1000$sup 0$R). The data thus far collected from the recessive lethal test indicate that 0.68 MeV neutrons have the highest RBE among the energies tested, followed by 6 and 2 MeV. The specific locus mutation data also indicate the highest RBE for 0.68 MeV, followed respectively by 2 and 6 MeV. The 15 MeV data is as of now incompletely analyzed, as are some dose points of 2 and 6 MeV. (auth)
Date:
November 1, 1975
Creator:
Abrahamson, S.
Object Type:
Report
System:
The UNT Digital Library
Genetic effects of low x-ray doses. Progress report, September 16, 1974-- September 30, 1975
Results are reported from large-scale experiments on the dose-kinetics of x-ray induced sex-linked lethal mutations in treated oogonia of Drosophila. (auth)
Date:
September 1, 1975
Creator:
Abrahamson, S. & Meyer, H.U.
Object Type:
Report
System:
The UNT Digital Library
Elastic and strength properties of Hanford concrete mixes at room and elevated temperatures
Objective was to determine the effects of long-term exposure to elevated temperatures on the strength and elastic properties of concrete mixes used in Hanford radioactive waste storage tanks. The report contains data from tests conducted on two Hanford concrete mixes to determine the modulus of elasticity, Poisson's Ratio, compressive strength, and splitting tensile strength at room temperature and elevated temperatures. All tests were made on 6-in. dia. by 12-in. long cylinders. Modulus of Elasticity and Poisson's Ratio were determined by sonic (dynamic) and static test methods. Variables were temperature, length of exposure to elevated temperatures, and curing time prior to exposure to elevated temperatures. 16 fig. (DLC)
Date:
June 1, 1975
Creator:
Abrams, M. S.
Object Type:
Article
System:
The UNT Digital Library
Assessment study of devices from the generation of electricity from stored hydrogen
A study was performed to evaluate alternative methods for the generation of electricity from stored hydrogen. The generation systems considered were low- temperature and high-temperature fuel cells, gas turbines and steam turbines. These systems were evaluated in terms of present-day technology and future (1995) technology. Of primary interest were the costs and efficiencies of the devices, the versatility of the devices toward various types of gaseous feeds, and the likelihood of commercial development. On the basis of these evaluations, recommendations were made describing the areas of technology which should be developed.
Date:
December 1, 1975
Creator:
Ackerman, J.P.; Barghusen, J.J. & Link, L.E.
Object Type:
Report
System:
The UNT Digital Library
The Chickasha Star (Chickasha, Okla.), Vol. 73, No. 7, Ed. 1 Thursday, May 1, 1975
Weekly newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 1, 1975
Creator:
Acree, Ron
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Target preparations and thickness measurements
A wide variety of isotope target preparative methods have been used, including rolling of metals, vapor deposition, electrodeposition, chemical vapor deposition, and sputtering, to obtain thin and thick films of most elements or compounds of elements in the Periodic Table. Most thin films prepared for use in self-supported form as well as those deposited on substrates require thickness measurement (atom count and distribution) and/or thickness uniformity determination before being used in nuclear research. Preparative methods are described together with thickness and uniformity determination procedures applicable to samples being prepared (in situ) and to completed samples. Only nondestructive methods are considered applicable to target samples prepared by the ORNL Solid State Division, Isotope Research Materials Laboratory. Thickness or areal density measurements of sufficient sophistication to yield errors of less than +-1 percent have been achieved with regularity. A statistical analysis procedure is applied which avoids error caused by balance zero-point drift in direct weight measurement methods. (auth)
Date:
January 1, 1975
Creator:
Adair, H. L. & Kobisk, E. H.
Object Type:
Article
System:
The UNT Digital Library
Destabilization of the trapped electron mode by magnetic curvature drift resonances
Electron curvature drift resonances, ignored in earlier work on the trapped-electron modes, are found to exert a strong destabilizing influence in the lower collision frequency range of these instabilities. Effects arising from ion temperature gradients, shear, and finite ion gyroradius are included with these vector nebla-drifts in the analysis, and the resultant eigenvalue equation is solved by numerical procedures rather than the commonly used perturbation techniques. For typical tokamak parameters the maximum growth rates are found to be increased over earlier estimates by roughly a factor of 4, and requirements on magnetic shear strength for stabilization are likewise more severe and very difficult to satisfy. For inverted density profiles, this new destabilizing effect is rendered ineffective, with the result that the modes can be stabilized for achievable values of shear provided the temperature gradients are not too severe. Estimates of the particle and thermal energy transport are given for both normal and inverted profiles. (auth)
Date:
December 1, 1975
Creator:
Adam, J.C.; Tang, W.M. & Rutherford, P.H.
Object Type:
Report
System:
The UNT Digital Library
A Proposal of the Experiment at the FNAL Accelerator
None
Date:
October 1, 1975
Creator:
Adamovich, M. I.; Cherenkov, P. A.; Dobrotin, N. A.; Tretjakova, M. I. & Lebedov, P. N.
Object Type:
Report
System:
The UNT Digital Library
LX-13 processing. Progress report, July--September 1975
Research conducted during July to October 1975 on the processing and performance testing of chemical explosives is reported. Four of the six lots of continuously precipitated PETN produced last quarter have been formulated into LX-13 and evaluated for firing performance and extrudability. Detonability was improved. Three of the lots fired satisfactorily on the DV blocks; however, extrudability was reduced. Three batches of PETN were formulated this quarter to further examine LX-13 extrudability and detonability. (auth)
Date:
January 1, 1975
Creator:
Adams, J. C.; Osborn, A. G. & Stallings, T. L.
Object Type:
Report
System:
The UNT Digital Library
LX-13 processing. Progress report, October--December 1975. [Effect of precipitation parameters on extrudability and detonability]
Results were obtained from five LX-13 batches formulated from PETN precipitated previously by the continuous method. Extrudability results indicate that a reduced temperature improves extrudability. Detonability was improved over previous continuous batches. Three additional batches of PETN have been precipitated at reduced temperatures to evaluate the effect of temperature on extrudability and detonability.
Date:
January 1, 1975
Creator:
Adams, J. C.; Stallings, T. L. & Osborn, A. G.
Object Type:
Report
System:
The UNT Digital Library
Near fields: inherent computational difficulties in moment-method formulations
None
Date:
March 1, 1975
Creator:
Adams, R. W. & Miller, E. K.
Object Type:
Report
System:
The UNT Digital Library
Convair Weekly Report to Supervision, Number 954, May 1, 1975
Newsletter written for supervisors working at the Convair Division in Fort Worth containing news about events and activities, workplace reminders, and other relevant information.
Date:
May 1, 1975
Creator:
Adams, Richard E.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Advanced geothermal primary heat exchanger (APEX). Quarterly progress report Q-2, 1 October 1975-31 December 1975
The APEX program is designed to investigate the concept that a continuously recirculating flow of fine solid particles in the brine stream will substantially retard the formation of scale in the primary heat exchanger. The primary technical effort during this reporting period has been the buildup of the test facility. Some preliminary testing has been conducted in order to establish process equipment suitability prior to completing the test facility design. Fouling experiments have also been conducted in the chemistry laboratory to preliminarily screen candidate geothermal fluid simulants. (MHR)
Date:
January 1, 1975
Creator:
Addoms, J.F.
Object Type:
Report
System:
The UNT Digital Library
Advanced geothermal primary heat exchanger (APEX). Quarterly progress report Q-1, 1 July 1975-30 September 1975
The major effort during this reporting period was directed toward performing the analytical design task and initiating the laboratory setup for the self-cleaning heat exchanger concept. Analytical design includes the selection of a suitable demonstration site, water chemistry and temperature, and thermodynamic power cycle, and parametric design and sensitivity analysis of a heat exchanger suitable for a 10 MW electric proof of concept plant. (MHR)
Date:
January 1, 1975
Creator:
Addoms, J.F. & Schoenman, L.
Object Type:
Report
System:
The UNT Digital Library
Synthesis and crystal structure of some novel phases involving metal--metal bonding
None
Date:
October 1, 1975
Creator:
Adolphson, D.G.
Object Type:
Report
System:
The UNT Digital Library
Field study to determine plutonium contents of wheat and soil in a warm humid area
A field study was initiated in the fall of 1974 at the United States Energy Research and Development Administration's Savannah River Plant near Aiken, South Carolina, to determine the spatial and temporal variation of plutonium in soil-plant systems, with wheat as the crop of interest. The study was conducted on a field adjacent to a nuclear fuel reprocessing plant. Soil in this field was lightly contaminated with plutonium originating from atmospheric releases by the reprocessing plant during its 20 years of operation and from global fallout. The plant releases provided a true industrial source of plutonium for study purposes. (auth)
Date:
January 1, 1975
Creator:
Adriano, D. C.; McLeod, K. W.; Pinder, J. E., III; Smith, M. E.; Boni, A. L.; Corey, J. C. et al.
Object Type:
Article
System:
The UNT Digital Library
Development of a High Velocity Solid Particle Launcher for Laboratory Erosion Studies. [Reentry Vehicle Heat Shields]
A solid particle launcher for laboratory erosion studies has been developed and successfully demonstrated. Performance of the launcher is predicted by a two-dimensional, time-dependent theoretical analysis to within the experimental uncertainty. The present device accelerates 100 μm diameter glass spheres to velocities of 2.1+/- 0.6 km/sec. The system is safe, reliable, and has a test repetition of about 2 shots/hour.
Date:
March 1, 1975
Creator:
Aeschliman, D. P.; Mulac, A. J.; Guzman, J. A.; Eaton, R. R. & Fox, R. L.
Object Type:
Report
System:
The UNT Digital Library
Comparison of measured and calculated void reactivity worths
None
Date:
January 1, 1975
Creator:
Ahlfeld, C.E. & Pryor, R.J.
Object Type:
Article
System:
The UNT Digital Library
Reactivity effects of moderator voids
Reactivity worths for large moderator voids similar to those produced by steaming in postulated reactor transients were measured in the Process Development Pile (PDP) reactor. The experimental results were compared to the computed void worths obtained from techniques currently used in routine safety analyses. Neutron energy spectrum measurements were used to verify a modified lattice pattern that correctly computed the measured spectrum, and consequently, improved macroscopic cross sections. In addition, a special two-dimensional transport calculation was performed to obtain an axially defined diffusion coefficient for the void region. The combination of the modified lattice calculations and the axial diffusion coefficient yielded void reactivity worths which agreed very well with experiment. It was concluded that the computational modules available in the JOSHUA system (GLASS, GRIMHX) would yield accurate void reactivity worths in SLR--SRP safety analysis studies, provided the above mentioned modifications were made.
Date:
January 1, 1975
Creator:
Ahlfeld, C.E. & Pryor, R.J.
Object Type:
Report
System:
The UNT Digital Library
Laser fusion experiments at the Lawrence Livermore Laboratory
A short review is given of some of the important dates in the experimental fusion program at Livermore. A few of the parameters of the laser systems which are being used for these experiments are mentioned. Some information about specialized diagnostics which have been developed at the Livermore Laboratory for these experiments is described. The focusing arrangements for each of the systems are discussed. Experiments both on planar targets and on targets for laser fusion are described. (auth)
Date:
October 1, 1975
Creator:
Ahlstrom, H.G.
Object Type:
Article
System:
The UNT Digital Library
Experimental determination of DT ion temperatures in laser fusion targets
Using the time-of-flight technique, energy distribution measurements were made of the fusion produced $alpha$ particles emitted from laser implosions of DT gas contained in glass microshells. The number of nuclear reactions was determined by an absolute measurement of both the number of $alpha$ particles and the number of neutrons. From the FWHM of the $alpha$ particle energy distributions, upper limits of the plasmas ion temperature have been inferred. By applying corrections for the broadening of the distribution due to the fuel and the pusher, ion temperatures of 2-3 keV have been calculated. These measurements constitute significant evidence that the implosions produced thermonuclear burn of the DT fuel. (auth)
Date:
October 1, 1975
Creator:
Ahlstrom, H.G.; Slivinsky, V.W.; Tirsell, K.G.; Storm, E.K.; Glaros, S.S. & Campbell, D.
Object Type:
Article
System:
The UNT Digital Library
Inelastic analysis of EBR II: IHX secondary outlet nozzle
Thermal stress analysis for the EBR-2 reactor intermediate heat exchanger is presented. The sodium inlet and outlet temperatures are determined from a reactor thermal analysis. The effects of thermal transients on the structural integrity of the heat exchanger are evaluated. Inelastic strain evaluation and creep-fatigue evaluation are described. 14 references. (DCC)
Date:
January 1, 1975
Creator:
Ahmed, H. & Stone, C.
Object Type:
Article
System:
The UNT Digital Library
Search for backwards produced exotic meson resonances and study of particle spectra and mass distributions in the reaction. pi. /sup +/ + P. -->. n (forward) + X/sup + +/ at 8. 4 GeV/c. [Upper limits, G parity, 8. 4 GeV/c]
Results are reported from a hybrid experiment designed to search for backwards produced I = 2 exotic meson resonances by investigating the backward scattering reactions: ..pi../sup +/ + p ..-->.. in (forward) + ..pi../sup +/..pi../sup +/, ..pi../sup +/..pi../sup +/..pi../sup +/..pi../sup -/, ..pi../sup +/..pi../sup +/..pi../sup +/..pi../sup +/..pi../sup -/..pi../sup -/, and p anti p..pi../sup +/..pi../sup +/ at an incident pion momentum of 8.4 GeV/c. The SLAC 15'' rapid cycling bubble chamber, operating at 20 cycles per second, was triggered by detecting fast forward neutrons in an optical spark chamber and scintillation counter array downstream. Following two-component duality arguments, Jacob and Weyers and Rosner have suggested backward scattering processes as a favored mode for exotic meson resonance production. Upper limits of the order of one microbarn are reported for the production of narrow exotic meson resonances with masses less than or equal to 3 GeV and which could decay into even G-parity states: ..pi../sup +/..pi../sup +/, ..pi../sup +/..pi../sup +/..pi../sup +/..pi../sup -/, ..pi../sup +/..pi../sup +/..pi../sup +/..pi../sup +/..pi../sup -/..pi../sup -/, and p anti p..pi../sup +/..pi../sup +/. The mass resolution in the above channels varied from 5 to 30 MeV over the mass range for the most restrictive sample of events. The statistical significance of the …
Date:
August 1, 1975
Creator:
Alam, M. S.; Brabson, B. B. & Galloway, K.
Object Type:
Report
System:
The UNT Digital Library