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Vaporization Processes in a Runaway Reactor

Description: From the point of view of constituents of a fuel element at temperatures between 2500 and 4500 degree K, the fuel elements can be considered to consist of six types of material: carbon, elements less volatile than carbon, 26 moles of rare gases, 21 moles of alkali metals, 17 moles of alkaline earth metals, and 4 moles of miscellaneous volatile elements. Various processes involving the constituents from 2000 to 45000 degree K are considered. Reactivity gain due to can rupture is discussed.
Date: August 4, 1959
Creator: Brewer, Leo, 1919-2005
Partner: UNT Libraries Government Documents Department
open access

Heat Transfer Fluids for Fuel Element Cans

Description: The maximum temperature in the interior of the fuel element could be greatly reduced by incorporating a liquid between the fuel element and the outer can to increase-heat transfer rates. It is of interest to consider what liquids would be chemically compatible with graphite and the actinide carbides. Elements which melt below 1100 and boil above 1400 deg C that form no stable solid carbides, include Cu, Ga, TI, Ge, Sn, Pb, Sb, Bi, and compounds include GeP, GeS, GaP, Ga/sub 2/S, GaTe, GaAs, SnT… more
Date: August 4, 1959
Creator: Brewer, Leo, 1919-2005
Partner: UNT Libraries Government Documents Department
open access

Fate of Fission Product Gases in the Coolant Stream

Description: The quantity and characteristics of fission products in coolant gases due to leaking fuel elements are discussed. It is concluded that the rare gases, the alkali metals, the halides, and Sb may act as permanent gases to a considerable extent. The other fission products are expected to condense out completely on walls or as dust consisting of metals, carbides, and oxides.
Date: August 4, 1959
Creator: Brewer, Leo, 1919-2005
Partner: UNT Libraries Government Documents Department
open access

Core Levitation in the EOCR in Case of Main Coolant Pipe Failure

Description: This memorandum summarizes the results of an analysis to determine the extent of displacement of the EOCR core due to blowdown in case of several postulated hot main gas coolant pipe failures. Results show that the core will be damaged for any hot pipe double-ended failure. Excepting the improbable case of no coolant flow existing proper to the break, the core will be damaged for any hot pipe fracture exposing a total flow area to the atmosphere equal to that of one pipe. Smaller breaks will pr… more
Date: August 4, 1959
Creator: Fontana, M. H.
Partner: UNT Libraries Government Documents Department
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Heat Transfer Calculations for CO2 Gas-Cooled Loop-PRTR

Description: At the request of Design Development Operation, various heat transfer and fluid flow problems were examined which are peculiar to the CO2 Gas-Cooled Loop in the PRTR. The results of these calculations are desired primarily to aid in demonstrating the adequacy of the design proposal. In addition, the operational limits of the loop and the consequences of the gas loop installation on the PRT reactor are of interest.
Date: August 4, 1959
Creator: Muraoka, J.
Partner: UNT Libraries Government Documents Department
open access

Field Experiments with Model Crib I. Location, Facility Design and First Experiment

Description: One of the research studies of the Chemical Effluents Technology Operation is the improvement of the method for predicting the capacity of a crib for the retention of wastes. In addition to laboratory work the research was extended a field experiment using a simulated crib fed with a solution containing a radioactive tracer. The purpose is twofold: (1) to check the validity of laboratory findings and (2) to observe several features of the behavior of solutions put to ground in the field.
Date: August 4, 1959
Creator: Knoll, K. C. & Nelson, J. L.
Partner: UNT Libraries Government Documents Department
open access

A Pulsed Nanosecond Light Source

Description: A system for scintillations from nuclear events has been developed and is presently in use at the Lawrence Radiation Laboratory. This paper primarily describes the pulsed light source used to simulate nuclear events; it also describes the necessary nanosecond pulse techniques to measure the light source parameters and to operate large numbers of lamps. Considerations concerning distribution networks are shown. Use of the light source as a spark gap trigger is also discussed.
Date: August 4, 1961
Creator: Innes, Thomas G. & Kerns, Quentin A.
Partner: UNT Libraries Government Documents Department
open access

Ru-106 - Rh-106 Activity

Description: In obtaining the results reported here a double focusing magnetic type spectrometer was used. Momentum spread was about 1%, and in most cases 2560 counts per point were taken. An end window Geiger tube was used as a detector. The window was of mica with areal density of 1.6 mg/cm2.
Date: August 4, 1953
Creator: Boyd, L. R.
Partner: UNT Libraries Government Documents Department
open access

Radioactive Particle Fallout in the Hanford Environs from Nevada Nuclear Explosions Spring-1953

Description: Various organizations in the Biophysics Section of the Radiological Sciences Department participated in evaluating local radioactive particle fallout as influenced by the nuclear explosions at the Nevada Proving Grounds during the early part of 1953. Data collected from approximately 50 air monitoring stations operated by the Regional Survey forces were used to determine the trend of radioactive particle concentrations in the atmosphere between March and June. These measurements were suppleme… more
Date: August 4, 1953
Creator: Paas, H. J.; Adley, F. E.; ; ; Fuquay, J. J. & Jenne, D. E.
Partner: UNT Libraries Government Documents Department
open access

Operation of the Hazards Control Calibration Facility neutron generator

Description: The operating procedure for the LLL Hazards Control Calibration and Standards Facility neutron generator is described. The generator is a Texas Nuclear Model 9400, and is located in the Low-Scatter Room. A general description of the generator is included.
Date: August 4, 1976
Creator: Elliott, J. H.
Partner: UNT Libraries Government Documents Department
open access

Data management plan for the Oak Ridge Environmental Information System, Version 1. 1

Description: The Data Management Plan (DMP) describes the data management objectives, system components, data base structure and contents, system maintenance, data processing, and user interface for the prototype phase of the Oak Ridge Environmental Information System (OREIS). The major goals of OREIS data management are to compile data of known quality, to maintain the integrity of the data base, and to provide data to users. The DMP defines the requirements, describes the responsibilities, and references … more
Date: August 4, 1992
Partner: UNT Libraries Government Documents Department
open access

Clean gasoline reforming with superacid catalysts

Description: It has been observed for a number of the Zr catalysts that the maximum MCH conversion (ca. 20 wt.%) can be obtained in 15 min. using a reaction temperature of 150{degrees}C and 1 atm. of H{sub 2}, and no further reaction occurs during 120 minutes. Typical results for these catalysts as well as catalyst which show lower activities using the 15 min. residence time are shown in Figure 2. Both catalyst formulations, a Pt/ZrO{sub 2}/SO{sub 4} and a Fe/Mn/ZrO{sub 2}/SO{sub 4} show this behavior. The … more
Date: August 4, 1992
Creator: Davis, B. H.
Partner: UNT Libraries Government Documents Department
open access

Neutron source calibration procedure by activation comparison. [Activation of /sup 56/Mn in MnSo/sub 4/ bath]

Description: The neutron source calibration procedure used in the LLL Hazards Control Calibrations and Standards Facility is described. The source strength is determined by comparing the equilibrium activity of /sup 56/Mn in a MnSO/sub 4/ bath induced by an unknown source to the activity induced by a known source that has been calibrated by the National Bureau of Standards.
Date: August 4, 1976
Creator: Elliott, J. H.
Partner: UNT Libraries Government Documents Department
open access

Improving cancer treatment with cyclotron produced radionuclides

Description: Our goal is to improve the scientific basis for tumor diagnosis, treatment and treatment follow-up based on the use of cyclotron produced radiotracers in oncology. The grant includes 3 interactive components: Radiochemistry/Cyclotron; Pharmacology; and Immunology. The radiochemistry group seeks to develop innovative cyclotron targetry, radiopharmaceuticals, and radiolabeled antibodies, which are then used to assess important unanswered questions in tumor pharmacology and immunology. Examples in… more
Date: August 4, 1992
Creator: Larson, S. M. & Finn, R. D.
Partner: UNT Libraries Government Documents Department
open access

Improving cancer treatment with cyclotron produced radionuclides

Description: This report describes the author's continuing long term goal of promoting nuclear medicine applications by improving the scientific basis for tumor diagnosis treatment and treatment follow-up based on the use of cyclotron produced radiotracers in oncology. The program has 3 interactive components: Radiochemistry /Cyclotron; Pharmacology; and Immunology. An essential strategy is as follows: novel radionuclides and radiotracers developed in the Radiochemistry/Cyclotron section under the DOE grant… more
Date: August 4, 1992
Creator: Larson, S. M. Finn, R. D.
Partner: UNT Libraries Government Documents Department
open access

Motion Detection Using Mean Normalized Temporal Variance

Description: Scene-Based Wave Front Sensing uses the correlation between successive wavelets to determine the phase aberrations which cause the blurring of digital images. Adaptive Optics technology uses that information to control deformable mirrors to correct for the phase aberrations making the image clearer. The correlation between temporal subimages gives tip-tilt information. If these images do not have identical image content, tip-tilt estimations may be incorrect. Motion detection is necessary to he… more
Date: August 4, 2003
Creator: Chan, C W
Partner: UNT Libraries Government Documents Department
open access

Comparison of Two Different Wavelength Tuning Schemes in a Seeded High-Gain FEL

Description: In the following text we analyze and compare results of the two publications ([1], [2]), dedicated to development of the tunable high-gain Free Electron laser (FEL), seeded by an external source. As a conclusion we summarize similarities and differences between these concepts. This note is initiated by the polemics on the similarity of two different schemes of the wavelength tuning in a seeded high-gain FEL. Below we will be calling the scheme, presented by S. Biedron, S, Milton and H. Freund i… more
Date: August 4, 2004
Creator: Shaftan, T. & Yu, L. H.
Partner: UNT Libraries Government Documents Department
open access

The effect of azimuthal inert material on the CMS hadron calorimeter

Description: The baseline design for the CMS hadronic calorimeter (HCAL) calls for barrel wedges subtending an azimuthal range of 1/18 of 2 {pi}. These wedges will each have about 1 cm of inert material which is required to make a self supporting structure. Therefore, it is expected that there will be about 2 cm of inert material between active elements in the CMS calorimeter. Since the inner radius of the HCAL modules is at 1.95 m, there is about 3% of the azimuth which is inert and possibly projective. Pr… more
Date: August 4, 1994
Creator: Green, D.
Partner: UNT Libraries Government Documents Department
open access

Lower hybrid current drive for edge current density modification in DIII-D: Final status report

Description: Application of Lower Hybrid (LH) Current Drive (CD) in the DIII-D tokamak has been studied at LLNL, off and on, for several years. The latest effort began in February 1992 in response to a letter from ASDEX indicating that the 2.45 GHz, 3 MW system there was available to be used on another device. An initial assessment of the possible uses for such a system on DIII-D was made and documented in September 1992. Multiple meetings with GA personnel and members of the LH community nationwide have oc… more
Date: August 4, 1993
Creator: Fenstermacher, M. E. & Porkolab, M.
Partner: UNT Libraries Government Documents Department
open access

200 Area weekly report

Description: No Description Available.
Date: August 4, 1955
Creator: Christl, R. J.
Partner: UNT Libraries Government Documents Department
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Improved radioimmunotherapy of hematologic malignancies. Progress report, November 1, 1993--October 31, 1994

Description: This report summaries progress made during the time interval between November 1, 1993 and October 31, 1994 and briefly describes studies on the metabolism of antibodies targeting B cell antigens, retention of labeled antibodies by human B cell lymphocytes, and tissue distribution of Chloramine T and tyramine cellobiose labeled antibodies in mice harboring a human erythroleukemia tumor transplant.
Date: August 4, 1994
Creator: Press, O. W.
Partner: UNT Libraries Government Documents Department
open access

Integrated test plan for a shallow high resolution compressional seismic reflection demonstration

Description: This integrated test plan describes the demonstration of a surface high resolution seismic reflection acquisition system using swept source technology. Compressional wave data will be collected along a previously occupied seismic line associated with a recent seismic survey north of the 300 Area. The swept source system will be employed testing two very different high resolution vibrator sources, one with a frequency range from 10 to 500 Hz and a smaller unit with a range from 20 to 1,500 Hz. T… more
Date: August 4, 1994
Creator: Narbutovskih, S. M.
Partner: UNT Libraries Government Documents Department
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Solidification of high level wastes Part 1, Evaporation and calcination of Purex IWW--volatility and leachability of fission products

Description: The basic objective of the storage of radioactive wastes is to protect humanity from: (1) direct radiation, (2) contamination of food and water supplies, and (3) contamination of mineral resources. There have been many proposals for the disposal of high level liquid wastes from chemical plants processing nuclear fuels. These include our present Hanford system of tank storage; disposal to deep wells, such as the oil industry uses for discard of brines they pump; storage in salt caverns; disposal… more
Date: August 4, 1959
Creator: Barton, G. B.
Partner: UNT Libraries Government Documents Department
open access

Data management plan for the Oak Ridge Environmental Information System, Version 1.1. Enviornmental Restoration Program

Description: The Data Management Plan (DMP) describes the data management objectives, system components, data base structure and contents, system maintenance, data processing, and user interface for the prototype phase of the Oak Ridge Environmental Information System (OREIS). The major goals of OREIS data management are to compile data of known quality, to maintain the integrity of the data base, and to provide data to users. The DMP defines the requirements, describes the responsibilities, and references … more
Date: August 4, 1992
Partner: UNT Libraries Government Documents Department
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