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Conditioning of the vacuum vessel walls of tokamaks, a preliminary look
The main features and operating characteristics of the primary vacuum system of many of the presently operating tokamak devices are presented. Particular attention is paid to the methods used to condition and clean the vessel walls in situ. For the devices discussed, a combination of a high-temperature bakeout and/or discharge cleaning is employed. In addition, discussions of the vacuum systems and wall conditioning methods anticipated for the next generation of tokamaks are presented. Since this report was written during a limited time period, it should be considered as preliminary and is not intended to be a general review. Much of the information that is presented was obtained by private communication and there is no bibliography. This study was initiated to aid in the design of TFTR. As presently envisioned, the TFTR vacuum system and methods for wall conditioning are consistent with what is presently practiced.
Date:
March 1, 1976
Creator:
Sink, D.A.
Object Type:
Report
System:
The UNT Digital Library
Functional Design Criteria Additional High-Level Waste Handling and Storage Facilities
Four one-million-gallon underground tanks will be constructed for safe and reliable containment and storage of high-level radioactive wastes. Transfer facilities and encased, insulated, and heat traced piping will provide transport connections to the existing evaporator-crystallizer and storage tank systems. Flushing facilities and associated utilities will be provided for tank farm operation. The tank, pumping, and ventilation equipment and controls will be provided with instrumentation and alarms. Instrumentation will monitor the waste and facilities to detect high temperatures, waste levels, radiation, and process leakages. Gaseous radioactive containment will be provided by the high efficiency ventilation filtration. The tank farm facilities will provide personnel radiation protection.
Date:
March 1, 1976
Creator:
Tanaka, K. H.
Object Type:
Report
System:
The UNT Digital Library
PTOLEMY, a Program for Heavy-Ion Direction-Reaction Calculations
Ptolemy is an IBM/360 program for the computation of nuclear elastic and direct-reaction cross sections. It carries out both optical-model fits to elastic-scattering data at one or more energies, and DWBA calculations for nucleon-transfer reactions. Ptolemy has been specifically designed for heavy-ion calculations. It is fast and does not require large amounts of core. The input is exceptionally flexible and easy to use. This report outlines the types of calculation that Ptolemy can carry out, summarizes the formulas used, and gives a detailed description of its input.
Date:
March 1976
Creator:
Gloeckner, D. H.; Macfarlane, M. H. & Pieper, Steven C.
Object Type:
Report
System:
The UNT Digital Library
Computer-Code Formulation for Three-Dimensional HEXCAN Response Coupled with Internal Hydrodynamics
A procedure is described for the dynamic analysis of a fast-reactor hexagonal subassembly. The internals of the fuel subassembly are treated by an axisymmetric hydrodynamic code REXCO-HT which, among other properties, possesses a model of an MFCI pressure source. The housing of the fuel subassembly is handled by the SADCAT code, which is based on a triangular finite element in three-dimensional space. The code is used to illustrate the discrepancies involved if the hexcan is modeled by a cylinder of the same thickness. A study is also made of the reduction of cylinder thickness such that the same final cylindrical deformation can be predicted. A discussion in arriving at such an equivalence is offered.
Date:
March 1976
Creator:
Marchertas, A. H. & Julke, R. T.
Object Type:
Report
System:
The UNT Digital Library
Study on Flow Instabilities in Two-Phase Mixtures
Various mechanisms that can induce flow instabilities in two-phase flow systems are reviewed and their relative importance discussed. In view of their practical importance, the density-wave instabilities have been analyzed in detail based on the one-dimensional two-phase flow formulation. The dynamic response of the system to the inlet flow perturbations has been derived from the model; thus the characteristic equation that predicts the onset of instabilities has been obtained. The effects of various system parameters, such as the heat flux, sub-cooling, pressure, inlet velocity, inlet orificing, and exit orificing on the stability boundary have been analyzed. In addition to numerical solutions, some simple stability criteria under particular conditions have been obtained. Both results have been compared with various experimental data, and a satisfactory agreement has been demonstrated.
Date:
March 1976
Creator:
Ishii, M.
Object Type:
Report
System:
The UNT Digital Library
Explosive Interaction of Molten UO2 and Liquid Sodium
The interim report presented describes a continuation of the work reported in ANL-7890, Interaction of Sodium with Molten Uranium dioxide and Stainless Steel Using a Dropping Mode of Contact. In the current study, sodium was injected into a pool of molten uranium dioxide. The experiment consistently produced vapor explosions, both with the injection nozzle above and beneath the surface of the uranium dioxide. Although the efficiency of the conversion of thermal to mechanical energy was small (due in part to very conservative data analysis and an inefficient geometry), the results did demonstrate that there is no intrinsic reason why reactor materials cannot produce a vapor explosion.
Date:
March 1976
Creator:
Armstrong, D. R.; Goldfuss, G. T. & Gebner, R. H.
Object Type:
Report
System:
The UNT Digital Library
Xenon-Tagging in Production of EBR-II Mark II Driven-Fuel Elements
About 1200 Mark II driver-fuel elements were xenon-tagged to facilitate qualification for irradiation of Mark II fuel manufactured at ANL-West. Tagging equipment was designed and developed. In this equipment, the plenum in a fuel-element jacket was evacuated then filled with xenon to a predetermined pressure. The equipment design allows tagging and element fabrication to proceed normal rates for production of fuel elements. A Kr-85 tracer in the xenon-tag gas verified by gamma counting the adequate tagging of each element.
Date:
March 1976
Creator:
Wilkes, C. W.; Ryan, M. J.; Laug, M. T. & Fryer, R. M.
Object Type:
Report
System:
The UNT Digital Library
Environmental Monitoring at Argonne National Laboratory, Annual Report: 1975
Annual report of the environmental monitoring program at Argonne National Laboratory, discussing activities and findings of the group.
Date:
March 1976
Creator:
Golchert, N. W.; Duffy, T. L. & Sedlet, J.
Object Type:
Report
System:
The UNT Digital Library
Plutonium Safety Training Course
This course seeks to achieve two objectives: to provide initial safety training for people just beginning work with plutonium, and to serve as a review and reference source for those already engaged in such work. Numerous references have been included to provide information sources for those wishing to pursue certain topics more fully. The first part of the course content deals with the general safety approach used in dealing with hazardous materials. Following is a discussion of the four properties of plutonium that lead to potential hazards: radioactivity, toxicity, nuclear properties, and spontaneous ignition. Next, the various hazards arising from these properties are treated. The relative hazards of both internal and external radiation sources are discussed, as well as the specific hazards when plutonium is the source. Similarly, the general hazards involved in a criticality, fire, or explosion are treated. Comments are made concerning the specific hazards when plutonium is involved. A brief summary comparison between the hazards of the trans-plutonium nuclides relative to plutonium-239 follows. The final portion deals with control procedures with respect to contamination, internal and external exposure, nuclear safety, and fire protection. The philosophy and approach to emergency planning are also discussed.
Date:
March 1976
Creator:
Moe, H. J.
Object Type:
Report
System:
The UNT Digital Library
Final Safety Analysis Addenda to Hazards Summary Report, Experimental Breeder Reactor II (EBR-II) : Upgrading of Plant Protection System, Volume 1
This report is a compilation of the formal Final Safety Analysis Addenda (FSAA's) to the EBR-II Hazard Summary Report and Addendum that have been prepared in support of certain modifications to the reactor-shutdown-system portion of the EBR-II plant protection system. Each major section is an edited version of the original FSAA for a particular modification and provides a description of the pre - and post -modification system, the rationale for the modification, and required supporting safety analysis.
Date:
March 1976
Creator:
Sackett, J. I. & Gale, N. L.
Object Type:
Report
System:
The UNT Digital Library
One-Dimensional Cladding-Relocation Model for Fast-Reactor Loss-of-Flow Accidents
The motion and location of the molten-cladding during an unprotected loss-of-flow accident in liquid metal fast breeder reactors are important because of the effects on the reactivity and the subsequent fuel motion. The present study analyzes the cladding-relocation problem based on a single-channel film-flow model and a simple thermal transient model for fuel pins. The motion of molten cladding induced by sodium-vapor streaming undergoes initial rapid upward acceleration, slowing down, flow reversal, and eventual slumping down into liquid sodium at the lower end of the heated section. Freezing of the molten cladding at the unheated upper plenum region is possible; bottom freezing and blockage formation were also included in the analysis. A simple calculation has been made for the R-series seven-pin tests in the TREAT reactor. The agreement of the overall physical behavior of the cladding motion with the post-test observations is quite satisfactory.
Date:
March 1976
Creator:
Ishii, M.; Chen, W. L. & Grolmes, M. A.
Object Type:
Report
System:
The UNT Digital Library
Experimental and Analytical Study of the Sputtering Phenomena
An experimental apparatus was constructed to examine the heat-transfer characteristics of a sputtering front. In the present study, a heat source of sufficient intensity was located immediately below the sputtering front, which prevented its downward progress, thus permitting detailed measurements of steady-state surface temperatures throughout a sputtering front. A two-dimensional analytical model was developed to describe a stationary sputtering front where the wet-dry interface corresponds to a CHF phenomena and the dry zone is adiabatic. This model is nonlinear because of the temperature dependence of the heat-transfer coefficient in the wetted region and has yielded good agreement with data. A simplified one-dimensional approximation was developed which adequately describes these data. Finally, by means of a coordinate transformation and additional simplifying assumptions, this analysis was extended to analyze moving sputtering fronts, and reasonably good agreement with reported data was shown.
Date:
March 1976
Creator:
Howard, Paul A.
Object Type:
Report
System:
The UNT Digital Library
Comparison of the AMDAHL 470V/6 and the IBM 370/195 Using Benchmarks
Six groups of jobs were run on the IBM 370/195 at the Applied Mathematics Division (AMD) of Argonne National Laboratory using the current production versions of OS/MVT 21.7 and ASP 3.1. The same jobs were then run on an AMDAHL 470V/6 at the AMDAHL manufacturing facilities in Sunnyvale, California, using the identical operating systems. Performances of the two machines are compared. Differences in the configurations were minimized. The memory size on each machine was the same, all software which had an impact on run times was the same, and the I/O configurations were as similar as possible. This allowed the comparison to be based on the relative performance of the two CPU's. As part of the studies preliminary to the acquisition of the IBM 195 in 1972, two of the groups of jobs had been run on a CDC 7600 by CDC personnel in Arden Hills, Minnesota, on an IBM 360/195 by IBM personnel in Poughkeepsie, New York, and on the AMD 360/50/75 production system in June, 1971.
Date:
March 1976
Creator:
Snider, D. R.; Midlock, J. L.; Hinds, A. R. & Engert, D. E.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0229.0249]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "W. Howard Cloud, 34, was named director of the Oklahoma Aeronautics Commission Monday."
Date:
March 16, 1976
Creator:
Curtis Studios
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0052.0737]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company. Caption: "Freed from his car Friday and taken to St. Anthony Hospital is Jesse Bills, 817 Cherry Lane' car collided head-on with a dump truck at NE 23 and Coltrane, causing fractures to both his legs. No injuries were reported by the truck driver."
Date:
March 26, 1976
Creator:
Carter, J. Pat
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0053.0392]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company. Caption: "Richard L. Taylor, 46, of 9620 Sonata Circle in Midwest City, was killed shortly before noon today when he lost control of this tractor truck while apparently trying to avoid traffic ahead."
Date:
March 30, 1976
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0301.0013]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Donnie Deming, a 23 - year - old student at Oklahoma Christian College, takes a normal 15 - hour class load, works part -time in a maintenance at O C C and plans to be married in April."
Date:
March 30, 1976
Creator:
Tullous, Don
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0051.1095]
Photograph taken for a story in the Oklahoma City Times newspaper. Caption: "The driver walked away unhurt after this car took a tumble from a bridge near SE 134 and Sooner Road."
Date:
March 3, 1976
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0074.0286]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Fort Cobb's Cecil Johnson jumps high to get this rebound against Boley in the Class A title game."
Date:
March 6, 1976
Creator:
Tullous, Don
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0119A.0207]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Janell W. Byrd, daughter of Mr. and Mrs. Lionel P. Byrd, 6600 Carol Drive, is one of two Oklahomans among the 4333 winners in the 12th annual National Achievement Scholarship Program for Outstanding Negro Students, announced today by the National Merit scholarship Corp."
Date:
March 16, 1976
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0072.0286]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: ". . . . and for the Canton girls, it was the agony of defeat."
Date:
March 6, 1976
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0072.0283]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Three good reasons Olive made it to the girls' Class A state tournament this year are the Endicott sisters (left to right) - Sheila, Debbie and Teresa."
Date:
March 3, 1976
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0142.0391]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
March 9, 1976
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0142.0393]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
March 9, 1976
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History