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Office of Scientific & Technical Information Technical Reports
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119
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50
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40
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36
Technical Report Archive and Image Library
35
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25
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568 Matching Results
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Determination of performance criteria for high-level solidified nuclear waste
To minimize radiological risk from the operation of a waste management system, performance limits on volatilization, particulate dispersion, and dissolution characteristics of solidified high level waste must be specified. The results show clearly that the pre-emplacement environs are more limiting in establishing the waste form performance criteria than the post-emplacement environs. Absolute values of expected risk are very sensitive to modeling assumptions. The transportation and interim storage operations appear to be most limiting in determining the performance characteristics required. The expected values of risk do not rely upon the repositories remaining intact over the potentially hazardous lifetime of the waste.
Date:
May 7, 1979
Creator:
Heckman, R.A. & Holdsworth, T.
Object Type:
Report
System:
The UNT Digital Library
The Fundamental Basis for the Standardization of Electrical Instruments and Meters
Description of the standards used by the electrical power industry for the measurement of the electrical quantities.
Date:
May 7, 1948
Creator:
Silsbee, Francis B.
Object Type:
Report
System:
The UNT Digital Library
Electroplated Metals on Uranium
The following report follows the studies of electroplating on uranium and concurrent metallurgical clodding.
Date:
May 7, 1954
Creator:
Beach, John G.; Schickner, W. C.; Konecny, C. R. & Faust, Charles L.
Object Type:
Report
System:
The UNT Digital Library
Meteorological data for SRI study of mesoscale weather effects by pilot plant
The data required to estimate the probability of occurrence of initial meteorological conditions leading to an effect on the weather by the pilot solar thermal electric plant are discussed. No completely appropriate data summaries are available. Vertical atmospheric profiles are the most appropriate source of raw data for a statistical analysis, but these are not available from the pilot plant location either. The available stability data for the pilot plant site are presented. A procedure is outlined to obtain the required estimates of occurrence frequency if desired. However, it is recommended that more substantial effects be demonstrated with a physically realistic model before great effort is expended on data analysis.
Date:
May 7, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Surface characterization of an energetic material, pentaerythritoltetranitrate (PETN), having a thin coating achieved through a starved addition microencapsulation technique
The objective of this research was to: (1) determine the nature of a thin coating on an explosive material which was applied using a starved addition microencapsulation technique, (2) understand the coating/crystal bond, and (3) investigate the wettability/adhesion of plastic/solvent combinations using the coating process. The coating used in this work was a Firestone Plastic Company copolymer (FPC-461) of vinylchloride/trifluorochloroethylene in a 1.5/1.0 weight ratio. The energetic explosive examined was pentaerythritoltetranitrate (PETN). The coating process used was starved addition followed by a solvent evaporation technique. Surface analytical studies, completed for characterization of the coating process, show (1) evidence that the polymer coating is present, but not continuous, over the surface of PETN; (2) the average thickness of the polymer coating is between 16-32 A and greater than 44 A, respectively, for 0.5 and 20 wt % coated PETN; (3) no changes in surface chemistry of the polymer or the explosive material following microencapsulation; and (4) the presence of explosive material on the surface of 0.5 wt % FPC-461 coated explosives. 5 refs., 15 figs., 6 tabs.
Date:
May 7, 1986
Creator:
Worley, C.M.
Object Type:
Report
System:
The UNT Digital Library
Tritium inventory of a target factor in an ICF power plant
A preliminary parametric study has been performed to estimate the tritium inventory of a conjectured Target Factory. The inventory of a proposed tritiated fuel processing system was determined as a function of production efficiency, storage factor, and time interval for the slowest processing step. Results indicated that a study of this type will be beneficial in evaluating possible processing schemes for the production of tritiated laser fusion targets.
Date:
May 7, 1981
Creator:
Sherohman, J.W.
Object Type:
Report
System:
The UNT Digital Library
Operational parameters of a 2. 0-MeV RFQ linac
After extensive upgrading, our radio-frequency quadrupole (RFQ) linac is again installed on the accelerator test stand (ATS). The measured parameters of the RFQ, such as the output transverse emittance, transmitted beam, average energy, and energy spread is presented.
Date:
May 7, 1984
Creator:
Sander, O. R.; Purser, F. O. & Rusthoi, D. P.
Object Type:
Article
System:
The UNT Digital Library
Sampling SX-tank farm condensate
In accordance with the policy that a centralized inventory shall be kept of all radioactive waste liquid discharged to ground, it is recommended that the volumes of condensate from the SX-farm, the dates or periods of discharge, and the activity densities of radioisotopes in the condensate discharged be determined by Separations Section and reported regularly to the Radiological Standards Unit. This paper is a description of the condensate system, with recommendations for sampling and analysis.
Date:
May 7, 1954
Creator:
Clukey, H. V.
Object Type:
Report
System:
The UNT Digital Library
Hybrid staging of geothermal energy conversion process
Progress in the demonstration of the feasibility of hybrid staging in geothermal energy conversion is described, particularly processes involving the Lysholm engine. The performance limitations of the Lysholm engine were studied. (MHR)
Date:
May 7, 1984
Creator:
Steidel, R.F. Jr.
Object Type:
Report
System:
The UNT Digital Library
DT-burning upgrade to MFTF-B
To improve MFTF-B, one must raise the ion energy and the electrostatic confining potential. This requires higher beam energy (200 keV in this case) and, to preserve end-plug adiabaticity and hold higher plasma density in the central cell, a higher level of magnetic field. In the MFTF Upgrade we also want to incorporate the new end plug configuration first invented for the MARS reactor. This new magnet design is compared with the present MFTF-B magnet set. The differences include the addition of a pair of recircularizing coils on the ends to be used in conjunction with the end region pumping and direct converter schemes, the use of a yin-yang pair rather than a baseball-type coil in the transition, and the elimination of the axicell in favor of the simple choke coil. Also, as noted earlier, an axisymmetric mirror cell is imbedded in the central cell.
Date:
May 7, 1984
Creator:
Thomassen, K. I.; Logan, B. G.; Doggett, J. N. & Coensgen, F. H.
Object Type:
Article
System:
The UNT Digital Library
Experience with Position Sensitive Neutron Detectors at the Intense Pulsed Neutron Source
At the Intense Pulsed Neutron Source (IPNS) pulses of protons accelerated in a synchrotron produce pulses of fast neutrons via the spallation process in an enriched uranium target. After moderation, the resulting pulses of slow neutrons are directed into beams which serve a variety of neutron scattering instruments. Currently there are thirteen neutron scattering instruments in operation or under development at IPNS, and six of these use position-sensitive neutron detectors (PSDs). These PSDs are: a 30 cm {times} 30 cm, {approximately}3 mm resolution, neutron Anger camera area PSD with {sup 6}Li-glass scintillator; a 2.5 cm dia, {approximately}0.7 mm resolution, microchannel-plate area PSD with {sup 6}Li-glass scintillator; a 20 cm {times} 20 cm, {approximately}5 mm resolution, {sup 3}He proportional counter area PSD; a 40 cm {times} 40 cm, {approximately}4 mm resolution, {sup 3}He proportional counter area PSD; a flat 20 cm long, {approximately}1.6 mm resolution, {sup 3}He proportional counter linear PSD; and 160 cylindrical {sup 3}He proportional counter linear PSDs, each of which is 1.27 cm in dia 60 cm long and has {approximately}14 mm resolution. These detectors, in addition to being position-sensitive, resolve the time of the neutron capture with {approximately}1 {mu}s precision for neutron time-of-flight measurements. This paper will …
Date:
May 7, 1990
Creator:
Crawford, R. K.; Haumann, J. R.; Schultz, A. J.; Felcher, G. P.; Epperson, J. E.; Thiyagarajan, P. et al.
Object Type:
Article
System:
The UNT Digital Library
Electron motion in solenoidal magnetic fields using a first order symplectic integration algorithm
The use of nonsymplectic procedures in particle tracing codes for relativistic electrons leads to errors that can be reduced only at the expense of using very small integration steps. More accurate results are obtained with symplectic transformations for position and momentum. A first-order symplectic integration procedure requires an iterative calculation of the new position coordinates using the old momenta, but the process usually converges in three or four steps. A first-order symplectic algorithm has been coded for cylindrical as well as Cartesian coordinates using the relativistic equations of motion with Hamiltonian variables. The procedure is applied to the steering of a beam of 80-keV electrons by a weak transverse magnetic field superposed on a strong magnetic field in the axial direction. The steering motion is shown to be parallel to the transverse field rather than perpendicular as would be the case without the strong axial field.
Date:
May 7, 1984
Creator:
Fraser, J.S.
Object Type:
Article
System:
The UNT Digital Library
Gamma rays for pedestrians
Nuclear gamma radiation does not have many of the properties taken for granted in atomic or molecular radiation and necessary for lasers. The basic science and technology underlying these differences and the proposed methods of overcoming difficulties resulting from them are not properly understood. Considerable illumination in this interdisciplinary problem could be provided by some back-of-the-envelope calculations and simple experimental surveys by small groups of students and postdocs with an elementary knowledge of the nuclear and solid state physics which is evidently not familiar these days to laser physicists. 3 refs.
Date:
May 7, 1987
Creator:
Lipkin, Harry J.
Object Type:
Report
System:
The UNT Digital Library
Covert Action and Clandestine Activities of the Intelligence Community: Selected Notification Requirements in Brief
This report discusses the requirements for notifying Congress of covert action and clandestine activities of the intelligence community and activities of the military. These requirements originated from instances in the 1970s when media disclosure of past intelligence abuses underscored reasons for Congress taking a more active role in oversight. Over time, these requirements were written into statute or became custom.
Date:
May 7, 2018
Creator:
DeVine, Michael E. & Peters, Heidi M.
Object Type:
Report
System:
The UNT Digital Library
Investigation of PACVD protective coating processes using advanced diagnostics techniques
Objective is to understand the mechanisms governing nonequilibrium plasma atomistic or molecular deposition of hard face coatings. Laser diagnostic methods include coherent anti-Stokes Raman spectroscopy (CARS) and laser-induced fluorescence. TiB[sub 2] and diamonds were used as the hard face coating materials. Diborane was used as precursor to TiB[sub 2].
Date:
May 7, 1993
Creator:
Roman, W.C.
Object Type:
Report
System:
The UNT Digital Library
Bioechnology of indirect liquefaction
The project on biotechnology of indirect liquefaction was focused on conversion of coal derived synthesis gas to liquid fuels using a two-stage, acidogenic and solventogenic, anaerobic bioconversion process. The acidogenic fermentation used a novel and versatile organism, Butyribacterium methylotrophicum, which was fully capable of using CO as the sole carbon and energy source for organic acid production. In extended batch CO fermentations the organism was induced to produce butyrate at the expense of acetate at low pH values. Long-term, steady-state operation was achieved during continuous CO fermentations with this organism, and at low pH values (a pH of 6.0 or less) minor amounts of butanol and ethanol were produced. During continuous, steady-state fermentations of CO with cell recycle, concentrations of mixed acids and alcohols were achieved (approximately 12 g/l and 2 g/l, respectively) which are high enough for efficient conversion in stage two of the indirect liquefaction process. The metabolic pathway to produce 4-carbon alcohols from CO was a novel discovery and is believed to be unique to our CO strain of B. methylotrophicum. In the solventogenic phase, the parent strain ATCC 4259 of Clostridium acetobutylicum was mutagenized using nitrosoguanidine and ethyl methane sulfonate. The E-604 mutant strain of Clostridium …
Date:
May 7, 1990
Creator:
Datta, R.; Jain, M. K.; Worden, R. M.; Grethlein, A. J.; Soni, B.; Zeikus, J. G. et al.
Object Type:
Report
System:
The UNT Digital Library
Producing thermochemical hydrogen with the tandem-mirror reactor
Fusion power holds the promise to supply not only electricity but also fuels to meet the balance of our energy needs. A new integrated power and breeding blanket design is described for tandem mirror reactors. The blanket incorporates features that make it suitable for synthetic fuel production. In particular, it is matched to the thermal and electrical power requirements of the General Atomic water-splitting process for production of hydrogen. Some improvements to the high temperature chemical process steps are described. These improvements are expected to allow production of hydrogen at about $13/GJ wholesale, including financing costs, capital amortization, and profit.
Date:
May 7, 1982
Creator:
Werner, R. W. & Hickman, R. G.
Object Type:
Article
System:
The UNT Digital Library
Automobile and Light Truck Fuel Economy: The CAFE Standards
This report discusses the current corporate average fuel economy (CAFE) standard of 35 miles per gallon (mpg), and the major issues on the CAFE debate. The report also offers an overview of Congressional interest in CAFE (1991-2005), and explains the CAFE and reduction of carbon dioxide emissions.
Date:
May 7, 2008
Creator:
Yacobucci, Brent D. & Bamberger, Robert
Object Type:
Report
System:
The UNT Digital Library
Texas Register, Volume 21, Number 33, Pages 3859-3980, May 7, 1996
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
May 7, 1996
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Register, Volume 18, Number 35, Pages 2915-3002, May 7, 1993
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
May 7, 1993
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Texas Register, Volume 16, Number 34, Pages 2491-2548, May 7, 1991
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
May 7, 1991
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
80th Texas Legislature, Regular Session, Senate Concurrent Resolution 52
Concurrent resolution introduced by the Texas Senate and House of Representatives granting the legislature permission to adjourn for more than three days during the period beginning on Wednesday, April 4, 2007, and ending on Tuesday, April 10, 2007.
Date:
May 7, 2007
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
78th Texas Legislature, Fourth Called Session, House Concurrent Resolution 12
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to granting permission to adjourn from April 27 to May 3, 2004.
Date:
May 7, 2004
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
Texas Attorney General Opinion: GA-0184
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification: Whether “vessel and outboard motor ownership records” are “customer information” under section 11.030 of the Parks and Wildlife Code (RQ-0132-GA)
Date:
May 7, 2004
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History