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Office of Scientific & Technical Information Technical Reports
3,697
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448
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192
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155
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98
Office of Technology Assessment
93
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76
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13
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75
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50
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49
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47
Argonne National Laboratory Reports
34
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29
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4,808 Matching Results
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Los Alamos low-level waste performance assessment status
This report reviews the documented Los Alamos studies done to assess the containment of buried hazardous wastes. Five sections logically present the environmental studies, operational source terms, transport pathways, environmental dosimetry, and computer model development and use. This review gives a general picture of the Los Alamos solid waste disposal and liquid effluent sites and is intended for technical readers with waste management and environmental science backgrounds but without a detailed familiarization with Los Alamos. The review begins with a wide perspective on environmental studies at Los Alamos. Hydrology, geology, and meteorology are described for the site and region. The ongoing Laboratory-wide environmental surveillance and waste management environmental studies are presented. The next section describes the waste disposal sites and summarizes the current source terms for these sites. Hazardous chemical wastes and liquid effluents are also addressed by describing the sites and canyons that are impacted. The review then focuses on the transport pathways addressed mainly in reports by Healy and Formerly Utilized Sites Remedial Action Program. Once the source terms and potential transport pathways are described, the dose assessment methods are addressed. Three major studies, the waste alternatives, Hansen and Rogers, and the Pantex Environmental Impact Statement, contributed to …
Date:
June 1, 1986
Creator:
Wenzel, W.J.; Purtymun, W.D.; Dewart, J.M. & Rodgers, J.E. (comps.)
Object Type:
Report
System:
The UNT Digital Library
Los Alamos Neutron Scattering Center
The Los Alamos Neutron Scattering Center (LANSCE) is a new pulsed spallation neutron source at the Los Alamos National Laboratory for neutron scattering research in the structure and dynamics of materials. LANSCE is expected to achieve the world's highest peak thermal neutron flux of 1.7 x 10/sup 16/ n/cm/sup 2/-sec at 12 Hz by 1988. The scientific potential and development plans for the facility are described.
Date:
January 1, 1986
Creator:
Silver, R. N.
Object Type:
Article
System:
The UNT Digital Library
Los Alamos science, Number 14
Nine authored articles are included covering: natural heat engine, photoconductivity, the Caribbean Basin, energy in Central America, peat, geothermal energy, and the MANIAC computer. Separate abstracts were prepared for the articles. (DLC)
Date:
January 1, 1986
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Los Alamos x-ray characterization facilities for plasma diagnostics
A summary is given of characteristics of x-ray sources used by Los Alamos National Laboratory to calibrate various x-ray diagnostic packages and components. Included are D.C. sourcs in electron impact and fluorescence modes, a pulsed laser source for soft x rays with 100 ps time resolution, Febetron pulsed electron impact sources, and both EUV and x-ray synchrotron beamlines.
Date:
January 1, 1986
Creator:
Day, R. H.; Blake, R. L.; Stradling, G. L.; Trela, W. J. & Bartlett, R. J.
Object Type:
Article
System:
The UNT Digital Library
Alanreed Quadrangle
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date:
1986
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
Alcoholic Beverage Code
Text of laws in Texas related to alcohol, including the sale, serving, and taxation as well as other regulations and penalties.
Date:
September 1, 1986
Creator:
Texas Alcoholic Beverage Commission
Object Type:
Book
System:
The Portal to Texas History
An algorithm for the analysis of inductive antennas of arbitrary cross-section for heating in the ion cyclotron range of frequencies
The application of Ion Cyclotron Range of Frequency (ICRF) heating to near ignited plasmas will require launching structures that will be capable of withstanding the harsh plasma environment. The recessed antenna configuration is expected to provide sufficient protection for the structure, but to date no analysis has been done to determine if adequate coupling can be achieved in such a configuration. In this work we present a method for determining the current distribution for the antenna in the direction transverse to current flow and predict antenna loading in the presence of plasma. Antennas of arbitrary cross section are analyzed above ground planes of arbitrary shape. Results from ANDES, the ANtenna DESign code, are presented and compared to experimental results.
Date:
October 1, 1986
Creator:
Lehrman, I.S. & Colestock, P.L.
Object Type:
Report
System:
The UNT Digital Library
Alignment labeling scheme for the reverse bends, instrument sections, and the final focus beam line elements and their supports
None
Date:
January 24, 1986
Creator:
Friedsam, H.; Oren, W.; Pitthan, R.; Pushor, R. & Ruland, R.
Object Type:
Report
System:
The UNT Digital Library
Alpha particle density and energy distributions in tandem mirrors using Monte-Carlo techniques
We have simulated the alpha thermalization process using a Monte-Carlo technique, in which the alpha guiding center is followed between simulated collisions and Spitzer's collision model is used for the alpha-plasma interaction. Monte-Carlo techniques are used to determine the alpha radial birth position, the alpha particle position at a collision, and the angle scatter and dispersion at a collision. The plasma is modeled as a hot reacting core, surrounded by a cold halo plasma (T approx.50 eV). Alpha orbits that intersect the halo lose 90% of their energy to the halo electrons because of the halo drag, which is ten times greater than the drag in the core. The uneven drag across the alpha orbit also produces an outward, radial, guiding center drift. This drag drift is dependent on the plasma density and temperature radial profiles. We have modeled these profiles and have specifically studied a single-scale-length model, in which the density scale length (r/sub pD/) equals the temperature scale length (r/sub pT/), and a two-scale-length model, in which r/sub pD//r/sub pT/ = 1.1.
Date:
May 1, 1986
Creator:
Kerns, J.A.
Object Type:
Report
System:
The UNT Digital Library
ALT-I Pump Limiter Experiments With ICRF Heating on TEXTOR
The ALT-I (Advanced Limiter Test-I) was installed on TEXTOR to benchmark the ability of a pump limiter as an efficient particle collector and to determine the physics of pump limiter operation. Experiments continue to show its capability of removing particles from the plasma edge under different operating conditions. In this paper we report first experimental results using ALT-I in conjunction with high power ICRF heating. The particle removal rate increases as the edge flux and density increase during the ICRF pulse. For a head geometry that collects flux from both electron and ion drift sides, the plasma temperature rise is asymmetric with electron temperature on the electron side increasing more than on the ion side during the ICRF pulse. When ALT-I is the major limiter, the particle fluxes on both sides increase by about the same factor and the particle flux on the ion side is always larger, by a factor of 1.5 to 2 than on the electron side during both ohmic and ICRF periods. The degradation of particle confinement inferred from Langmuir probe measurement is more than a factor of two at a maximum achieved power of 2 MW.
Date:
May 1, 1986
Creator:
Leung, W. K.; Goebel, D. M.; Conn, R. W.; Dippel, K. H.; Finken, K. H. & Thomas, G. J.
Object Type:
Article
System:
The UNT Digital Library
ALT-I Pump Limiter Experiments With ICRF Heating on TEXTOR. Revision.
The ALT-I (Advanced Limiter Test-I) was installed on TEXTOR to benchmark the ability of a pump limiter as an efficient particle collector and to determine the physics of pump limiter operation. Experiments continue to show its capability of removing particles from the plasma edge under different operating conditions. In this paper we report first experimental results using ALT-I in conjunction with high power ICRF heating. The particle removal rate increases as the edge flux and density increase during the ICRF pulse. For a head geometry that collects flux from both electron and ion drift sides, the plasma temperature rise is asymmetric with electron temperature on the electron side increasing more than on the ion side during the ICRF pulse. When ALT-I is the major limiter, the particle fluxes on both sides increase by about the same factor and the particle flux on the ion side is always larger, by a factor of 1.5 to 2 than on the electron side during both ohmic and ICRF periods. The degradation of particle confinement inferred from Langmuir probe measurement is more than a factor of two at a maximum achieved power of 2 MW.
Date:
May 1, 1986
Creator:
Leung, W. K.; Goebel, D. M.; Conn, R. W.; Dippel, K. H.; Finken, K. H. & Thomas, G. J.
Object Type:
Article
System:
The UNT Digital Library
Alternate method of decay-heat removal in a C-E plant following a SBLOCA
The use of an atmospheric steam-dump procedure to cool and depressurize a Combustion-Engineering plant, Calvert Cliffs-1, following small-break loss-of-coolant accidents with failure of the high-pressure injection system to operate has been investigated. The procedure was effective in depressuizing the primary to the low-pressure injection system operating pressure and design temperature using water supplies from the safety-grade condensate water storage tank only. The procedure was found to be effective even if additional failures occurred. Specifically, low-pressure injection conditions were attained if only a single atmospheric dump valve was available or if the safety-injection tanks (accumulators) were not available.
Date:
January 1, 1986
Creator:
Boyack, B. E.
Object Type:
Article
System:
The UNT Digital Library
An Alternative Library Under 4. 2 BSD UNIX on a VAX 11/780
This paper describes an alternative library of elementary functions prepared for use with the standard Fortran compiler under 4.2 BSD UNIX on a VAX 11/780. The library, written in C and based on the book ''Software Manual for the Elementary Functions'' by Cody and Waite, offers improved accuracy over the standard system library, as well as additional capabilities. Listings and output from the ELEFUNT suite of test programs are included in the appendix.
Date:
February 1986
Creator:
Cody, William James
Object Type:
Report
System:
The UNT Digital Library
Alternatives to Animal Use in Research, Testing, and Education
An assessment by the Office of Technology Assessment (OTA) that "analyzes the scientific, regulatory, economic, legal, and ethical considerations involved in alternative technologies in biomedical and behavioral research, toxicity testing, and education" (p. iii).
Date:
February 1986
Creator:
United States. Congress. Office of Technology Assessment.
Object Type:
Report
System:
The UNT Digital Library
Amarillo
Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:100000
Date:
1986
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The Portal to Texas History
American Society of Mechanical Engineers Rail Transportation Divsion
This report discusses the railway systems in China, United States and Canada. A number of Chinese PRC railroad officers, engineers, transportation specialists, and planning experts studied in the USA.
Date:
May 30, 1986
Creator:
Blaine, David G.
Object Type:
Report
System:
The UNT Digital Library
Amplifier-Discriminator-Multiplexor card
The Amplifier-Discriminator-Multiplexor (ADM) card described was designed for the External Muon Identifier at the 15 ft Bubble Chamber. The general scheme of the data readout of the External Muon Identifier is based on the use of a master clock. The ADM card serves to amplify the signals from the proportional tubes, discriminate them, latch the signals in parallel into a shift register. The data are then shifted out serially to the Time Digitizing System, using the master clock. The shift registers are loaded, and the latches are reset every sixteen cycles of the master clock. (LEW)
Date:
February 1, 1986
Creator:
Graupman, D.
Object Type:
Report
System:
The UNT Digital Library
Amplitude dependence of the tune shift
Recent studies in the Tevatron have measured the tune shift as a function of the displacement from a closed orbit. The measured values of tune shift were found to be much smaller than one would expect from the measured distribution of the normal octupole moments in the Tevatron. Tracking studies performed to see if, and under what conditions, the observed results could be obtained are reported. The effect of linear coupling is taken into consideration, and is found to significantly reduce the coefficient of the tune shift. The dependence of the tune shift on the initial coordinate of a particle in the presence of a distribution of octupole moments is calculated. The ''smear'' is calculated as a function of linear coupling. (LEW)
Date:
March 1, 1986
Creator:
Gelfand, N.M.
Object Type:
Report
System:
The UNT Digital Library
Analog data transmission via fiber optics
In the SLAC Linear Collider Detector (SLD), as in most high-energy particle detectors, the electromagnetic noise environment is the limiting factor in electronic readout performance. Front-end electronics are particulary susceptible to electromagnetic interference (EMI), and great care has been taken to minimize its effects. The transfer of preprocessed analog signals from the detector environs, to the remote digital processing electronics, by conventional means (via metal conductors), may ultimately limit the performance of the system. Because it is highly impervious to EMI and ground loops, a fiber-optic medium has been chosen for the transmission of these signals. This paper describes several fiber-optic transmission schemes which satisfy the requirements of the SLD analog data transmission.
Date:
October 1, 1986
Creator:
Cisneros, E. L. & Burgueno, G. F.
Object Type:
Article
System:
The UNT Digital Library
The analog processing system for the Liquid Argon Calorimeter for SLD at SLAC
The analog processing system for the Liquid Argon Calorimeter for the SLD project at SLAC is described. Amplification, storage of the analog information, and multiplexing is realized on specially developed hybrids, which will be mounted directly on the detector. This leads to a substantial reduction of the cable plant. Test results for the amplifier and for the sampling and multiplexing hybrid (CDU hybrid) are presented. The latter hybird contains a custom monolithic device, the Calorimeter Data Unit (CDU).
Date:
September 1, 1986
Creator:
Haller, G. M.; Nelson, D. & Freytag, D. R.
Object Type:
Article
System:
The UNT Digital Library
Analyses of operational times and technical aspects of the Salton Sea scientific drilling project: (Final report)
The Deep Salton Sea Scientific Drilling Program (DSSSDP) was conducted in Imperial County of California at the Southeastern edge of the Salton Sea. Emphasis was on the acquisition of scientific data for the evaluation of the geological environment encountered during the drilling of the well. The scientific data acquisition activities consisted of coring, running of numerous downhole logs and tools in support of defining the geologic environment and conducting two full scale flow tests primarily to obtain pristine fluid samples. In addition, drill cuttings, gases and drilling fluid chemistry measurements were obtained from the drilling fluid returns concurrent with drilling and coring operations. The well was drilled to 10,564 feet. This report describes the field portions of the project and presents an analysis of the time spent on the various activities associated with the normal drilling operations, scientific data gathering operations and the three major downhole problem activities - lost circulation, directional control and fishing.
Date:
December 1, 1986
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Analysis and interpretation of a high density tandem negative ion source
In the last few years the development of tandem-discharge hydrogen-negative-ion-source systems has proceeded along both experimental and theoretical lines. To some extent these developments have proceeded independently, either the available theoretical model was inadequate to account for a specific geometrical configuration, or the experimental data was not sufficient to provide adequate input parameters for calculation. In the tandem system described here the electron temperature, electron density, and other relevant parameters have been obtained for a high-density system whose electron densities range up to 3 - 5 x 10/sup 12/ electrons cm/sup -3/. The model calculation for the atomic processes has been extended to include both electron density and electron temperature spatial variations through the second chamber. These spatial variations are essential for an adequate interpretation of tandem systems where steep density gradients may occur beyond the magnetic filter region. In this paper we shall combine the experimental density data with the new spatially dependent atomic model for the purpose of attempting a correlation of the observed and calculated current densities. 9 refs., 8 figs., 3 tabs.
Date:
October 22, 1986
Creator:
Hiskes, J.R.; Lietzke, A.F. & Hauck, C.
Object Type:
Article
System:
The UNT Digital Library
Analysis and testing of the HP-R-214 dome monitor cable from Three Mile Island Unit 2
After the accident at Three Mile Island, Unit 2, two sections of a cable connected to the HP-R-214 dome monitor were removed for testing. One section had been directly exposed to the accident environment: the other had been installed in conduit. In addition, an unused section of cable, which was from the same reel as the dome monitor cable, was available as a control sample. These three sections were subjected to material tests, including density profiling, tensile-strength and elongation tests, and chemical analyses, to assess the effect of the accident on the cable and to identify whether any differences existed between the in-conduit and out-of-conduit sections.
Date:
March 1, 1986
Creator:
Richards, E.H. & Dandini, V.J.
Object Type:
Report
System:
The UNT Digital Library
An Analysis of Accumulator Ring Pressure Date
This note summarizes and analyzes the Accumulator Ring's pressure data taken during the recent commissioning run (March-October, 1985) and during the three week interval immediately after the end of the commissioning run. Emphasis is placed upon the questions raised in reference [1], viz.: (1) What is the ultimate vacuum attainable? (2) How do we calculate the 'effective-pressure' for beam lifetime estimates from the ion gauge data? (3) What is the required sublimation schedule to maintain adequate vacuum?
Date:
January 9, 1986
Creator:
Gormley, M.
Object Type:
Report
System:
The UNT Digital Library