Serial/Series Title
LWBR Development Program
32
Saxton Plutonium Project Quarterly Progress Report
15
ORNL Radioisotope Distirbution Program Progress Report
14
AWBA Development Program
10
Fiscal Year 1972
10
Low-Cost Solar Array Project
10
Experimental Investigation of the Chemistry of Excited States of Rare Gases Progress Report
7
Fiscal Year 1973
7
Fiscal Year 1974
7
Monthly Highlights for Office of Nuclear Regulatory Research Programs at Oak Ridge National Laboratory
7
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Geothermal R and D Project report for October 1, 1975--December 30, 1975
The Idaho National Engineering Laboratory (INEL) Geothermal Research and Development Project is conducting two major geothermal development efforts: 1) a project aimed at medium temperature (approximately 300/sup 0/F) utilization to produce electricity with supplemental direct thermal use of the energy; and 2) a low temperature (approximately 170/sup 0/F) space heating project. The first effort has progressed in the field to the successful drilling of two deep geothermal wells providing flows of the desired temperature in the Raft River Valley of south central Idaho. The second program involves the heating of government buildings and a university campus at Boise, Idaho. This report covers the period October 1, to December 30, 1975.
Date:
April 1, 1976
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Application of pulsed electron beam vaporization to studies of UO/sub 2/. [LMFBR]
A method for determining the pressure versus internal energy coordinates of the liquid-vapor saturation curve is applied to the study of UO/sub 2/. The experimental details and results of an initial series of tests are described. A comparison of the measurement results to models of the UO/sub 2/ equation of state illustrates the role of the heat capacity in describing the P--E characteristics of the state surface. A discussion of the available heat capacity information suggests that additional modeling and measurements of the heat capacity may be needed to give a complete temperature and energy dependent state surface description. Because of these modeling uncertainties, a method of thermodynamically describing the P(V, E) state surface entirely through the use of dynamic vapor measurements is given. Such a model satisfies transient thermomechanical analysis requirements. Next the effect of the state surface on one type of core disruptive reactor analysis is examined. And finally, the property determinations and models for UO/sub 2/ are reviewed with requirements for future work being outlined.
Date:
June 1, 1977
Creator:
Benson, D. A.
Object Type:
Report
System:
The UNT Digital Library
Phase 0: goal study for the technical and economic evaluation of the Compound Parabolic Concentrator (CPC) concept applied to solar thermal and photovoltaic collectors. Final report
This report presents the results of a quick, six-week technical and economic evaluation of the compound parabolic concentrator (CPC) solar collector. The purpose of this effort was to provide an initial phase of a goals study that is directed toward recommending relative priorities for development of the compound parabolic concentrator concept. The findings of this study are of a very preliminary nature. Conclusions based on study findings at this depth should be considered preliminary and subject to revision and review in later phases.
Date:
June 1, 1975
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Sensitivity of the reactor safety study consequences model to mixing heights
The sensitivity to mixing height values of the consequence model used in the Reactor Safety Study has been investigated. Increasing mixing height values by a factor of 2 or decreasing by factors of 2, 5, or 10 had negligible effects on early-fatality predictions. Plume penetration of a low-lying inversion layer substantially decreases early-fatality predictions. Therefore, consequence model predictions are insensitive to mixing height values and conservative with respect to plume penetration of inversion layers, a process not currently included in the model.
Date:
January 1, 1977
Creator:
Sprung, J. L. & Church, H. W.
Object Type:
Report
System:
The UNT Digital Library
Dynamic Isotope Power System: technology verification phase, program plan, 1 October 1978
The technology verification phase program plan of the Dynamic Isotope Power System (DIPS) project is presented. DIPS is a project to develop a 0.5 to 2.0 kW power system for spacecraft using an isotope heat source and a closed-cycle Rankine power-system with an organic working fluid. The technology verification phase's purposes are to increase the system efficiency to over 18%, to demonstrate system reliability, and to provide an estimate for flight test scheduling. Progress toward these goals is reported. (LCL)
Date:
January 15, 1979
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
DENSJT: statistical shell-model level density computer code description and user's manual. [In FORTRAN for CDC Cyber-70 computer]
The FORTRAN code DENSJT described here is constructed to calculate the appropriate moments and dimensions needed in describing the Gaussian level density for fixed values of the total angular momentum (J) and isobaric spin (T = T/sub 0/). The input for this code is the same as in the usual shell-model codes, namely, the single-particle orbital properties and the antisymmetric two-body matrix elements. To calculate the moments for fixed values of the angular momentum (J) a method described by Ginocchio is used. All of the ''basic inputs'' needed in the reduction formula were derived without any restrictions on the orbitals. The formulas used in DENSJT are described, and the basic inputs are listed in tables. A block flow chart showing the general structure and the specific function of each subroutine is included. All necessary information for the input and output of this code is described. A calculation involving 3 orbitals in the s--d shell took 1 second on a CDC Cyber-70 computer. (RWR)
Date:
July 1, 1976
Creator:
Dalton, B.
Object Type:
Report
System:
The UNT Digital Library
Photoelectron spectroscopy and Auger electron spectroscopy of solids and surfaces
The use of photoelectron spectroscopy, primarily x-ray photoelectron spectroscopy, to obtain information on the electronic structure of a wide variety of solids (especially the bulk electronic structure of solids) is covered. Both valence band and core-level spectra, as well as a few cases of photon excited Auger electron spectroscopy, are employed in the investigations to derive information on N(E). The effect of several modulations inherent in the measured I(E)'s, such as final state band structure, cross section, and relaxation, is discussed. Examples of many-electron interactions in PES are given. Some experimental aspects of PES and AES studies are given with emphasis on sample preparation techniques. Multiple splitting of core levels is examined using the Mn levels in MnF/sub 2/ as a detailed case study. Core level splittings in transition metals, rare earth metals, transition metal halides and several alloys are also reported. The application of PES to the study of the chemical bond in some crystalline semiconductors and insulators, A/sup N/B/sup 8-N/ and A/sup N/B/sup 10-N/ compounds is treated, and a spectroscopic scale of ionicity for these compounds is developed from the measured ''s-band'' splitting in the valence band density of states. (GHT)
Date:
January 1, 1976
Creator:
Kowalczyk, S. P.
Object Type:
Report
System:
The UNT Digital Library
Effects of impurities on PuO/sub 2/ dissolution in nitric-hydrofluoric acid solutions
The effects of 0.10 M Cu/sup 2 +/, Hg/sup 2 +/, Zn/sup 2 +/, La/sup 3 +/, Ce/sup 3 +/, Al/sup 3 +/, Th/sup 4 +/,Zr/sup 4 +/, Cr/sup 3 +/, and Fe/sup 3 +/ on PuO/sub 2/ dissolution in 8.0M HNO/sub 3/--0.1M HF were investigated. Except for Cr/sup 3 +/ and Fe/sup 3 +/, the amount of Pu dissolved in 1 hour can be predicted by either log C(Pu) = -0.32 log K/sub F/ - 1.53 (K/sub F/ = first stability constant for the impurity metal fluoride complex) or log C(Pu) = -0.5 Z/sup 2//d-1.11 (Z = ionic charge of impurity cation, d = sum of impurity cation and fluoride ionic radii in angstroms) (DLC)
Date:
January 1, 1976
Creator:
Tallent, O. K. & Mailen, J. C.
Object Type:
Article
System:
The UNT Digital Library
Nuclear Chemistry Research. Annual progress report, 1 January--31 December 1975. [Summaries of research activities at Pittsburgh University]
Research is summarized on heavy ion fusion reactions, equilibrium charge-state distributions of heavy ions, the statistics of low level counting, and strontium and radiostrontium in marine mollusc shells. A list of publications is included. (JFP)
Date:
January 1, 1976
Creator:
Wolke, R L
Object Type:
Report
System:
The UNT Digital Library
Telemetry component tests in the FN tandem terminal
When an electrostatic tandem accelerator is used primarily for heavy ion acceleration, numerous communication channels with the high voltage terminal are desirable. The ANL FN tandem operates at a tank pressure of 100 psi SF/sub 6/ at terminal voltages up to 9.5 MeV. A low powered He-Ne laser with 15 percent modulation has been successfully tested in the terminal under normal operating conditions. Such a system allows the transmission of information without the use of light guides. Multistranded light guides did not withstand voltage gradients as low as 0.4 MV/m. Single core light guides with a diameter of 0.5 mm have been successfully operated at voltage gradients in excess of 1.7 MV/m. In addition to the laser a microprocessor has also been tested in the tandem terminal. With suitable protection, an 8080 microprocessor and a programmable ROM operated successfully for several weeks under normal operating conditions.
Date:
January 1, 1977
Creator:
Bicek, J. J.; Billquis, P. J. & Yntema, J. L.
Object Type:
Article
System:
The UNT Digital Library
Geothermal resources: exploration and exploitation. A bibliography
This comprehensive bibliography contains 5476 citations of foreign and domestic research reports, journal articles, patents, conference proceedings, and books concerned with the exploration and exploitation of geothermal resources. The coverage dates back as far as useful references could be obtained and extends through June 1976. References are arranged in broad subject categories and are made up of complete bibliographic citations. These are followed by a listing of subject descriptors used to describe the subject content of each reference. Four indexes are included: Corporate, Personal Author, Subject, and Report Number. Also included is a list of journals from which articles were selected. (LBS)
Date:
July 1, 1976
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Formation and study of exciplex systems: a low-pressure approach. Quarterly progress report No. 2, March 1, 1976--May 31, 1976
A system is being developed for forming and studying excimers from the van der Waals ground states of gases. Status of the apparatus is reported. Calculations were made for concentration of dimers in cluster beams of noble gas mixtures. An experiment using a tuned laser to study the resonant absorption of excimers is proposed. (DLC)
Date:
January 1, 1976
Creator:
Sanzone, G.
Object Type:
Report
System:
The UNT Digital Library
OSCIL: one-dimensional spring-mass system simulator for seismic analysis of high temperature gas cooled reactor core
OSCIL is a program to predict the effects of seismic input on a HTGR core. The present model is a one-dimensional array of blocks with appropriate spring constants, inter-elemental and ground damping, and clearances. It can be used more generally for systems of moving masses separated by nonlinear springs and dampers.
Date:
January 1, 1976
Creator:
Lasker, L. (ed.)
Object Type:
Report
System:
The UNT Digital Library
Silica scale technology and water conservation. [Recirculating evaporative cooling]
Conservation of water at the Los Alamos Scientific Laboratory (LASL) has been accomplished by recirculating evaporative cooling waters. Because of high silica concentration (80 mg/l) in Los Alamos groundwater, the concentration of recirculating water must be carefully controlled to prevent scaling. The most troublesome scale at Los Alamos has been identified as colloidal silica bound in a crystalline matrix of calcium carbonate. Several approaches to controlling this scale are: (1) chemical treatment using a chelate, sequestrant, or threshold approach, (2) softening, or (3) pH control. Silica alone will form deposits when supersaturated. In LASL systems, where silica concentrations are 200 to 240 mg/l, no problems have been observed. However, there is evidence that deposits are forming at slightly higher concentrations. These amorphous silica deposits are not as hard and tenacious as the calcium carbonate--silica scale. Complete external treatment, which combines silica removal and water softening, may be an economically competitive process for scale control. The advantages of slightly reducing the quantity of makeup water and drastically reducing the amount of blowdown water have environmental and conservation implications that may encourage the selection of complete treatment.
Date:
January 1, 1976
Creator:
Midkiff, William S. & Foyt, H. Pressley
Object Type:
Article
System:
The UNT Digital Library
Investigations of the inductively coupled plasma source for analyzing NURE water samples at the Los Alamos Scientific Laboratory
A 3.4-meter direct-reading spectrograph is being used with an inductively coupled plasma source for the simultaneous determination of Ag, Bi, Cd, Cu, Nb, Ni, Pb, Sn, and W in water samples. We have attached a small digital computer to the system in order to obtain intensity data on each element once a second. After the intensities during a run on a sample have stabilized, the computer records the intensity data and outputs the average concentration for each element. To approach the published detection limits, a peristaltic pump must be used to force the water sample into the usual cross-flow nebulizer. We have studied several different nebulizer designs with the goal of improving efficiency and hence sensitivity. One design, the fritted-disk nebulizer, has an efficiency over 60 percent, as compared with the 5 percent efficiency of the original nebulizer.
Date:
March 1, 1977
Creator:
Apel, C. T.; Bieniewski, T. M.; Cox, L. E. & Steinhaus, D. W.
Object Type:
Article
System:
The UNT Digital Library
Development of methods and procedures for high rate low energy expenditure fabrication of solar cells. Final report
A one year program to develop a new concept for silicon solar cell production based upon the use of pulsed electron beam processes combined with ion implantation has been completed. Feasibility of producing solar cells at high speed by a simplified vacuum-room temperature processing sequence has been demonstrated. The method has many advantages, particularly for large scale production at lowest possible cost.
Date:
November 1, 1976
Creator:
Kirkpatrick, A. R.; Minnucci, J. A. & Greenwald, A. C.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of environmental data relating to selected nuclear power plant sites: the Three Mile Island Nuclear Station Site
Environmental monitoring data for the years 1973 and 1974 pertaining to the Three Mile Island Nuclear Station Unit 1, which began operation in early 1974, were analyzed by the most practical qualitative and quantitative methods. Terrestrial biotic resources were considered for this plant. The effects of the operation of Unit 1 on the local terrestrial organisms were found to be undetectable. Although the plant has not operated long enough to reveal long-term deleterious effects, the present indications do not lead to a concerned prediction that any are developing. The data acquired, method of analysis, and results obtained are presented in detail along with recommendations for improving monitoring techniques.
Date:
August 1, 1976
Creator:
Murarka, I. P.
Object Type:
Report
System:
The UNT Digital Library
Natural gas massive hydraulic fracture research and advanced technology project. Quarterly report: February 1977--April 1977
Two field experiments were conducted with the surface electrical potential measurement system. The first was an MHF experiment with G.P.E. (Gas Producing Enterprises) on March 15 south of Vernal, Utah. This fracture was a joint ERDA-industry funded experiment. Approximately 640,000 gallons of fluid and 1.1 million pounds of proppant were injected into multilayered gas pay zones from a depth of 6500 feet to 8000 feet. This analysis of the data has produced several new and different concepts related to fracture design and growth. The second experiment conducted was the CONOCO hydrofracture that was performed as a part of their tertiary oil recovery experiment in the Big Muddy Field east of Casper, Wyoming. It was a small fracture (300 bbl) initiated at a depth of approximately 3500 feet. Eighteen pairs of potential probes were placed at 20/sup 0/ intervals around the fracture well at spacings of 1000 feet and 2000 feet. In addition, the relative potential was measured on six wells adjacent (<1000 feet) to the fracture well. These wells contained the CONOCO pressure gages to monitor formation pressure during the fracture and subsequent recovery operations. Potential measurements were made at twenty second intervals on alternate current probes: one a downhole …
Date:
July 1, 1977
Creator:
Schuster, C. L. & Northrop, D. A.
Object Type:
Report
System:
The UNT Digital Library
Radiochemical analyses of soil and vegetation samples taken from the Hanford environs, 1971--1976
Soil and vegetation have routinely been collected on the Hanford Site and surrounding environs as one method of monitoring radionuclide concentrations potentially attributable to Hanford operations. With the exception of a few locations, the data indicate that Hanford operations have made no significant contribution to existing radionuclide concentrations in soil and vegetation. Most of the activity seen in the samples can be attributed to natural causes or worldwide atmospheric fallout. The few locations apparently impacted by Hanford operations were: east of the California Nuclear burial site, which showed elevated levels of /sup 60/Co in soil and vegetation; northeast of the 1301-N trench, which showed elevated levels of /sup 54/Mn, /sup 60/Co, and /sup 134/Cs in soil and /sup 60/Co in vegetation; Columbia River island at river mile 340 (near North Richland), which showed elevated levels of /sup 60/Co; and east of 200 West Area, which showed elevated levels of Pu in soil.
Date:
June 1, 1977
Creator:
Miller, M. L.; Fix, J. J. & Bramson, P. E.
Object Type:
Report
System:
The UNT Digital Library
Radiation-enhanced precipitation in a V-10 wt % Ti alloy
A V-10 wt % Ti alloy was irradiated with 2.7 MeV /sup 51/V/sup +/ at 650/sup 0/C to doses of 2 to 60 dpa. No void swelling was observed at any dose. The irradiation resulted in an enhancement of a precipitation process similar to that observed in unirradiated materials. The precipitates in irradiated specimens were found to have the NaCl-type cubic crystal structure with a lattice parameter of TiO. The orientation relationship between the matrix and the precipitates was the same as that observed under thermal equilibrium conditions in unirradiated materials.
Date:
January 1, 1976
Creator:
Agarwal, S. C. & Taylor, A.
Object Type:
Article
System:
The UNT Digital Library
Compilation of yields from neutron-induced fission of /sup 232/Th, /sup 235/U, /sup 236/U, /sup 237/Np, /sup 238/U, and /sup 239/Pu measured radiochemically at Los Alamos
Radiochemically measured relative fission yields have been compiled for targets of /sup 232/Th, /sup 235/U, /sup 236/U, /sup 237/Np, /sup 238/U, and /sup 239/Pu that were irradiated with neutrons, the average energies of which were in the 0.0253-eV to 14-MeV range. The yields were examined for consistency by means of the two-mode-of-fission hypothesis. The circumstances associated with inconsistencies were investigated, but the yields in questions were rejected only when good cause was found. Finally, the relative fission yields were converted to absolute values. Most samples were irradiated in the following Los Alamos reactors: BIG-TEN, Clementine, Flattop (oralloy core), Flattop (Pu core), Godiva-I, Godiva-IV, Jezebel (Pu core), Jezebel (/sup 233/U core), Topsy, Tungsten-Carbide Critical Assembly, and Water Boiler. Other samples were irradiated at the Los Alamos Cockcroft-Walton and Van de Graaff accelerators. Still others were irradiated in the Coupled Fast Reactivity Measurements Facility at INEL. For each irradiation, the yields of some nuclides in the following list were measured: /sup 82/Br, /sup 83/Br, /sup 89/Sr, /sup 90/Sr, /sup 91/Sr, /sup 91/Y, /sup 95/Zr, /sup 96/Nb, /sup 97/Zr, /sup 103/Ru, /sup 105/Rh, /sup 106/Ru, /sup 109/Pd/sup g/, /sup 111/Ag, /sup 115/Cd/sup m/, /sup 115/Cd/sup g/, /sup 127/Sb, /sup 129/Sb, /sup 131/I, /sup …
Date:
October 1, 1975
Creator:
Ford, G. P. & Norris, A. E.
Object Type:
Report
System:
The UNT Digital Library
Elastic p-/sup 4/He scattering near 1 GeV
New 1.029 GeV p-/sup 4/He data from an Argonne-UCLA-Minnesota collaboration are in excellent agreement with existing multiple diffraction theory predictions. The theoretical calculation includes spin and isospin dependence of the ..delta.. intermediate state process that fills the first diffraction minimum. The recently normalized Saclay data and the older Brookhaven data disagree with our calculation and the new data.
Date:
February 1, 1977
Creator:
Wallace, S. J. & Alexander, Y.
Object Type:
Report
System:
The UNT Digital Library
Hydrology of some deep mines in Precambrian rocks
A number of underground mines were investigated during the summer of 1975. All of them are in Precambrian rocks of the Lake Superior region. They represent a variety of geologic settings. The purpose of the investigations was to make a preliminary study of the dryness, or lack of dryness of these rocks at depth. In other words, to see if water was entering the deeper workings through the unmined rock by some means such as fracture or fault zones, joints or permeable zones. Water entering through old mine workings extending to, or very near to the surface, or from the drilling equipment, was of interest only insofar as it might mask any water whose source was through the hanging or footwall rocks. No evidence of running, seeping or moving water was seen or reported at depths exceeding 3,000 feet. At depths of 3,000 feet or less, water seepages do occur in some of the mines, usually in minor quantities but increased amounts occur as depth becomes less. Others are dry at 2,000 feet of depth. Rock movements associated with extensive mining should increase the local secondary permeability of the rocks adjoining the mined out zones. Also most ore bodies are …
Date:
October 1, 1975
Creator:
Yardley, D. H.
Object Type:
Report
System:
The UNT Digital Library
Directional growth of pearlite in iron--carbon eutectoid alloys. [Rate]
Pearlite was transformed directionally by passing a zone of austenite through high purity Fe--C alloy bars of eutectoid composition. Using a small embedded thermocouple, the temperature gradient at both the austenitizing edge and the pearlite transformation edge of the austenitic zone was recorded. A sharp change in gradient occurred due to the change in thermal conductivity between the phases at each interface. The point of change in gradient enabled the temperature of both interfaces to be determined as a function of velocity. It was found that the undercooling of the pearlite transformation interface below the eutectoid temperature was quadratically dependent on the velocity of transformation. No superheating at the austenitizing interface was observed. Interlamellar spacing measurements of pearlite showed an inverse quadratic dependence of spacing on velocity. These two results are compared with theory. Volume diffusion of carbon through austenite adequately describes the kinetics of the decomposition of austenite to pearlite although extrapolated carbon diffusivities from high temperature austenite data are a factor of 2 to 4 too small. The interlamellar spacing of pearlite and the pearlite transformation interface temperature as a function of velocity are compared to other constant velocity transformation studies as well as isothermal investigations. Results of …
Date:
February 1, 1977
Creator:
Pearson, D. D.
Object Type:
Report
System:
The UNT Digital Library