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BIOLOGICAL AND MEDICAL RESEARCH DIVISION SUMMARY REPORT, JANUARY-DECEMBER 1960
Separate abstracts were prepared for 43 sections of this report. (C.H.)
Date:
May 1, 1961
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Prediction of the migration of several radionuclides in ocean sediment with the computer code IONMIG: a preliminary report
A computer code, IONMIG, which is used to calculate the far-field transport of radionuclides through ocean sediment by diffusion and convection is described. The code uses a two-dimensional, axisymmetric, explicit finite difference formulation. Preliminary results for several species (Cs, Pu, I, Tc) are given.
Date:
May 1, 1980
Creator:
Russo, A.J.
Object Type:
Report
System:
The UNT Digital Library
CLIP 1--AN IBM-704 PROGRAM TO SOLVE THE P-3 EQUATIONS IN CYLINDRICAL GEOMETRY
A second order form of the cylindrical P-3 equations is obtained for the case of an isotropic source. The boundary conditions and numerical method are discussed. Input preparation and operating instructions are included. (auth)
Date:
May 1, 1962
Creator:
Anderson, B.; Davis, J.; Gelbard, E.; Jarvis, P. & Pearson, J.
Object Type:
Report
System:
The UNT Digital Library
Identification of fluid-flow paths in the Cerro Prieto geothermal field
A hydrogeologic model of the Cerro Prieto geothermal field has been developed based on geophysical and lithologic well logs, downhole temperature, and well completion data from about 90 deep wells. The hot brines seem to originate in the eastern part of the field, flowing in a westward direction and rising through gaps in the shaly layers which otherwise act as partial caprocks to the geothermal resource.
Date:
May 1, 1982
Creator:
Halfman, S. E.; Lippmann, M. J.; Zelwer, R. & Howard, J. H.
Object Type:
Article
System:
The UNT Digital Library
D. phi. vertex drift chamber construction and test results
A jet-cell based vertex chamber has been built for the D{O} experiment at Fermilab and operated in a test beam there. Low drift velocity and diffusion properties were achieved using CO{sub 2}(95%)-ethane(5%) at atmospheric pressure. The drift velocity is found to be consistent with (9.74+8.68( E -1.25)) {mu}m/nsec where E is the electric field strength in (kV/cm < E z 1.6 kV/cm.) An intrinsic spatial resolution of 60 {mu}m or better for drift distances greater than 2 mm is measured. The track pair efficiency is estimated to be better than 90% for separations greater than 630 {mu}m. 8 refs., 6 figs., 1 tab.
Date:
May 1, 1991
Creator:
Clark, A.R.; Goozen, F.; Grudberg, P.; Klopfenstein, C.; Kerth, L.T.; Loken, S.C. et al.
Object Type:
Article
System:
The UNT Digital Library
Demonstration of innovative applicatiions of technology for cost reductions to the CT-121 FGD process
The objective of this project is to demonstrate on a commercial scale several innovative applications of cost-reducing technology to the Chiyoda Thoroughbred-121 (CT-121) process. CT-121 is a second generation flue gas desulfurization (FGD) process which is considered by the Electric Power Research Institute (EPRI) and Southern Company Services (SCS) to be one of the most reliable and lowest cost FGD options for high-sulfur coal-fired utility boiler applications. Demonstrations of the innovative design approaches will further reduce the cost and provide a clear advantage to CT121 relative to competing technology.
Date:
May 15, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Evaluation of the neutron dose received by personnel at the LLNL
This report was prepared to document the techniques being used to evaluate the neutron exposures received by personnel at the LLNL. Two types of evaluations are discussed covering the use of the routine personnel dosimeter and of the albedo neutron dosimeter. Included in the report are field survey results which were used to determine the calibration factors being applied to the dosimeter readings. Calibration procedures are discussed and recommendations are made on calibration and evaluation procedures.
Date:
May 1, 1982
Creator:
Hankins, D.E.
Object Type:
Report
System:
The UNT Digital Library
Electrostatic turbulence and transport in the RFP edge
This thesis details measurements of electrostatic turbulence and transport in the Madison Symmetric Torus reversed field pinch. The electrostatic fluctuation levels are found to be large, with {tilde n}{sub e}/n{sub e} {approximately} 30%--55% and {tilde T}{sub e}/T{sub e} {approximately} 15%--40%. The frequency and wavenumber spectra are broad, with {Delta}n {approximately} 70--150 and {Delta}m {approximately} 3--6, and differ from measured magnetic fluctuation spectra. The transport inferred from coherence measurements indicates that electrostatic fluctuations can account for most of the observed particle losses, but contribute only {approximately}20% to the observed electron energy loss.
Date:
May 1, 1992
Creator:
Spragins, C.W.
Object Type:
Report
System:
The UNT Digital Library
Performance characteristics of large aperture, ten-cell, atmospheric pressure isobutane Cherenkov counters
Two large aperture, 10 cell atmospheric-pressure isobutane Cherenkov counters were designed and constructed for a SLAC streamer chamber experiment. The rejection efficiencies for a 9 GeV/c ..pi../sup -/ were measured to be 99.838 +- .006% and 99.717 +- 008% for the two counters. The design details and performance characteristics are discussed.
Date:
May 24, 1980
Creator:
Hylen, J.; Ma, Z.M.; Jawahery, A.; Maruyama, T.; Milburn, R. & Thornton, R.
Object Type:
Report
System:
The UNT Digital Library
A System for Generating Gamma Ray Cross Section Data for Use with the IBM-7090 Computer
A system for generating detailed tables of gamma ray cross section data has been devised for use on the IBM7090 computer. This sy;tem obviates the preparation of large amounts of cross section data. It also provides a scheme for rapid access to these tabulated values. (auth)
Date:
May 16, 1962
Creator:
Penny, S. K.; Emmett, M. B. & Trubey, D. K.
Object Type:
Report
System:
The UNT Digital Library
Modeling geothermal systems. [Lumped-parameter and distributed parameter models]
None
Date:
May 1, 1975
Creator:
Witherspoon, P. A.; Neuman, S. P.; Sorey, M. L. & Lippmann, M. J.
Object Type:
Article
System:
The UNT Digital Library
Experiments and prospects for induction linac drivers
In the last three years, the US program in Heavy Ion Fusion has concentrated on understanding the induction linac approach to a power-plant driver. In this method it is important that the beam current be maximized throughout the accelerator. Consequently, it is crucial to understand the space-charge limit in the AG transport system in the linac and, also, to achieve current amplification during acceleration to keep pace with the kinematical increase of this limit with energy. Experimental results on both these matters and also on the use of multiple beams (inside the same accelerating structure) will be described. A new examination of the most attractive properties of the induction linac for a fusion driver has clearly pointed to the advantage of using heavy ions with a charge-state greater than unity - perhaps q = 3 may be an optimum. This development places even greater importance on understanding space-charge limits and mechanisms for emittance growth; also, it will require a new emphasis on the development of a suitable ion source.
Date:
May 1, 1986
Creator:
D., Keefe
Object Type:
Article
System:
The UNT Digital Library
End of life fission product distributions in F-1 experiment fuel rods
Fission product migration and end-of-life distributions were examined in the F-1 (X094) series of sealed, mixed-oxide fuel rods irradiated in the fast flux of EBR-II. Cesium, rubidium, iodine, and strontium data obtained from axial gamma scanning, mass spectrometry, and radiochemical analyses are presented. The results show significant migration of cesium, probably as both a volatile species and as the noble gas precursor. Cesium metal species leaving the fuel region accumulate predominately at the fuel-blanket interface. Volatile cesium reaching the fission product traps is readily sorbed by the charcoal.
Date:
May 1, 1980
Creator:
Goodin, D. T.; Langer, S. & Bell, W. E.
Object Type:
Article
System:
The UNT Digital Library
High temperature electronics and instrumentation seminar proceedings
This seminar was tailored to address the needs of the borehole logging industry and to stimulate the development and application of this technology, for logging geothermal, hot oil and gas, and steam injection wells. The technical sessions covered the following topics: hybrid circuits, electronic devices, transducers, cables and connectors, materials, mechanical tools and thermal protection. Thirty-eight papers are included. Separate entries were prepared for each one. (MHR)
Date:
May 1, 1980
Creator:
Veneruso, A.F.; Arnold, C. & Simpson, R.S. (eds.)
Object Type:
Article
System:
The UNT Digital Library
US GCFR demonstration plant design
A general description of the US GCFR demonstration plant conceptual design is given to provide a context for more detailed papers to follow. The parameters selected for use in the design are presented and the basis for parameter selection is discussed. Nuclear steam supply system (NSSS) and balance of plant (BOP) component arrangements and systems are briefly discussed.
Date:
May 1, 1980
Creator:
Hunt, P. S. & Snyder, H. J.
Object Type:
Article
System:
The UNT Digital Library
Sandia National Laboratories 8. 8 metre (29-foot) and 10. 7-metre (35-foot) centrifuge facilities
This report outlines the capabilities and limitations of the two centrifuges and gives other details which must be considered in preparing test specifications and designing fixtures, gives the theory and terminology of centrifuge testing, and describes the layout, operating principles, support functions, and reference material for each facility.
Date:
May 1, 1980
Creator:
Adams, P.H.; Ault, R.L. & Fulton, D.L.
Object Type:
Report
System:
The UNT Digital Library
Audit unto others hor ellipsis
My first encounter with a quality assurance auditor is reminiscent of an old Dodge commercial. You remember The old sheriff, masked in mirrored sunglasses, paunch hanging over his gun belt, prophesying, You're in a heap o' trouble boy '' Well, my auditor could have been kin to the sheriff; they had the same posture, attitude, and mirrored sunglasses. Plus, my auditor wore a black leather vest and sported a Buffalo Bill'' goatee. While certainly memorable, both gentlemen were far from pleasant. I'm fairly certain that the compliance auditor of old deserved this perceived association with his law enforcement counterpart. Both believed in enforcing the letter of the law, or their interpretations of it. Neither seemed capable of exercising interpretive powers, but instead relied on winning through intimidation, possibly with an eye toward claiming some version of a monthly Quota Award. Is the auditor of today any better perceived Because this first encounter of the worst kind'' made a lasting impression on me, I have dedicated considerable time and effort trying to avoid being perceived as another sheriff when I conduct audits. In my auditing career, I am determined to capitalize on each opportunity to turn negative situations, as experienced by …
Date:
May 1, 1992
Creator:
Maday, J.H. Jr.
Object Type:
Article
System:
The UNT Digital Library
Mechanisms for radiation damage in DNA. Progress report, January 1, 1982-December 31, 1982
In this project several mechanisms are proposed for radiation damage to DNA constituents and DNA, and a series of experiments utilizing electron spin resonance spectrometry to test the proposed mechanisms have been detailed. In the past studies have concentrated chiefly on the direct effect of radiation on DNA. We are currently investigating irradiated systems of DNA constituents which may shed light on indirect effects. In addition, studies of radiation effects on lipids have been undertaken which will shed light on the only other proposed site for cell kill, the membrane. Studies which we have completed during this year are: (1) ESR Study of Radicals Produced by One Electron Loss from 6-Azauracil, 6-Azathymine and 6-Azacytosine: Evidence for Both sigma and ..pi..-Radicals; (2) Hydrogen Abstraction Reactions by Amide Electron Adducts: A Comparison to Acid, Ester, Aldehyde and Ketone Electron Adducts. Studies which we have made progress on are: (3) An ESR and INDO Study of the ..pi..-Cations of 5-Hydroxymethyl-uracil and 5-Hydroxymethyl-cytosine: Evidence for Intramolecular Hydrogen Bonding; (4) Studies of the ..pi..-Cations of 5-Halouracils and 5-Halocytosines; (5) Studies of Radiation Damage to Lipids.
Date:
May 1, 1982
Creator:
Sevilla, M. D.
Object Type:
Report
System:
The UNT Digital Library
The structure of perturbative quantum gravity on a de Sitter background
Classical gravitation on de Sitter space suffers from a linearization instability. One consequence is that the response to a spatially localized distribution of positive energy cannot be globally regular. We use this fact to show that no causal Green's function can give the correct linearized response to certain bilocalized distributions, even though these distributions obey the constraints of linearization stability. We avoid the problem by working on the open submanifold spanned by conformal coordinates. The retarded Green's function is first computed in a simple gauge, then the rest of the propagator is inferred by analyticity -- up to the usual ambiguity about real, analytic and homogeneous terms. We show that the latter can be chosen so as to give a propagator which does not grow in any direction. The ghost propagator is also given and the interaction vertices are worked out.
Date:
May 1, 1992
Creator:
Tsamis, N. C. & Woodward, R. P.
Object Type:
Report
System:
The UNT Digital Library
SESAME equation of state No. 7530, basalt
A full-range equation of state (EOS) for dry, nonporous basalt with a grain density of 2.868 gcm/sup 3/ has been constructed and placed on the SESAME library as material number 7530.
Date:
May 1, 1988
Creator:
Barnes, J.F. & Lyon, S.P.
Object Type:
Report
System:
The UNT Digital Library
Laboratory work in support of West Valley glass development
Over the past six years, Pacific Northwest Laboratory (PNL) has conducted several studies in support of waste glass composition development and testing of glass compositions suitable for immobilizing the nuclear wastes stored at West Valley, New York. As a result of pilot-scale testing conducted by PNL, the glass composition was changed from that originally recommended in response to changes in the waste stream, and several processing-related problems were discovered. These problems were solved, or sufficiently addressed to determine their likely effect on the glass melting operations to be conducted at West Valley. This report describes the development of the waste glass composition, WV-205, and discusses solutions to processing problems such as foaming and insoluble sludges, as well as other issues such as effects of feed variations on processing of the resulting glass. An evaluation of the WV-205 glass from a repository perspective is included in the appendix to this report.
Date:
May 1, 1988
Creator:
Bunnell, L.R.
Object Type:
Report
System:
The UNT Digital Library
Mathematical Model for Predicting the Probability of Acute Mortality in a Human Population Exposed to Accidentally Released Airborne Radionuclides. Final Report for Phase I
A mathematical model was constructed for the purpose of predicting the fraction of human population which would die within 1 year of an accidental exposure to airborne radionuclides. The model is based on data from laboratory experiments with rats, dogs and baboons, and from human epidemiological data. Doses from external, whole-body irradiation and from inhaled, alpha- and beta-emitting radionuclides are calculated for several organs. The probabilities of death from radiation pneumonitis and from bone marrow irradiation are predicted from doses accumulated within 30 days of exposure to the radioactive aerosol. The model is compared with existing similar models under hypothetical exposure conditions. Suggestions for further experiments with inhaled radionuclides are included. 25 refs., 16 figs., 13 tabs.
Date:
May 1, 1980
Creator:
Filipy, R. E.; Borst, F. J.; Cross, F. T.; Park, J. F.; Moss, O. R.; Roswell, R. L. et al.
Object Type:
Report
System:
The UNT Digital Library
Fundamental economic issues in the development of small scale hydro
Some basic economic issues involved in the development of small-scale hydroelectric power are addressed. The discussion represents an economist's view of the investment process in this resource. Very little investment has been made in small-scale hydro development and an attempt is made to show that the reason for this may not be that the expected present worth of the returns of the project do not exceed the construction cost by a sufficient amount. Rather, a set of factors in combination impose costs on the project not normally incurred in small businesses. The discussion covers costs, supply, demand, and profitability.
Date:
May 1, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Theoretical Studies in Nuclear Reactions and Nuclear Structure
Research in the Maryland Nuclear Theory Group focusses on problems in four basic areas of current relevance. Hadrons in nuclear matter; the structure of hadrons; relativistic nuclear physics and heavy ion dynamics and related processes. The section on hadrons in nuclear matter groups together research items which are aimed at exploring ways in which the properties of nucleons and the mesons which play a role in the nuclear force are modified in the nuclear medium. A very interesting result has been the finding that QCD sum rules supply a new insight into the decrease of the nucleon's mass in the nuclear medium. The quark condensate, which characterizes spontaneous chiral symmetry breaking of the late QCD vacuum, decreases in nuclear matter and this is responsible for the decrease of the nucleon's mass. The section on the structure of hadrons contains progress reports on our research aimed at understanding the structure of the nucleon. Widely different approaches are being studied, e.g., lattice gauge calculations, QCD sum rules, quark-meson models with confinement and other hedgehog models. A major goal of this type of research is to develop appropriate links between nuclear physics and QCD. The section on relativistic nuclear physics represents our continuing …
Date:
May 1, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library