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Probing the possibility of a /sup 12/C/sup 13/C abundance gradient from observations of interstellar CH/sup +/

Description: I have performed high signal-to-noise (SN /equals/ 300 to 500) observations of interstellar CH/sup /plus// at Lick Observatory and at CTIO of the reddened, early-type stars HD 183143, HD 24432, and HD 157038 in an effort to probe the existence of a /sup 12/C/sup 13/C abundance gradient in our Galaxy.
Date: September 16, 1987
Creator: Hawkins, I.
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Partner: UNT Libraries Government Documents Department
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Plasma Separation Process: Betacell (BCELL) code: User's manual. [Bipolar barrier junction]

Description: The emergence of clearly defined applications for (small or large) amounts of long-life and reliable power sources has given the design and production of betavoltaic systems a new life. Moreover, because of the availability of the plasma separation program, (PSP) at TRW, it is now possible to separate the most desirable radioisotopes for betacell power generating devices. A computer code, named BCELL, has been developed to model the betavoltaic concept by utilizing the available up-to-date sour… more
Date: November 13, 1987
Creator: Taherzadeh, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fragmentation and flow in central collisions

Description: Investigation of the fragmentation mechanism requires the measurement of complicated observables. To identify what part of the reacting system gives rise to the fragments, it would be useful to tag them as participants or spectators. A large acceptance for all the reaction products and an event-by-event measurement of the fragment multiplicity is required to distinguish fragment formation via sequential emission from a large equilibrated system and multifragmentation. In order to address whethe… more
Date: January 1, 1987
Creator: Jacak, B. V.; Doss, K. G. R.; Gustafsson, H. A.; Gutbrod, H.; Harris, J. W.; Kampert, K. H. et al.
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Partner: UNT Libraries Government Documents Department
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Gamma-ray decay of levels in /sup 53/Cr

Description: Gamma-ray decay of levels in the stable isotope /sup 53/Cr has been studied using /sup 53/Cr(n,n'..gamma..) reactions for incident neutron energies between threshold and 10 MeV. Of the 65 gamma rays or gamma-ray groups observed for neutron interactions with /sup 53/Cr, 50 have been placed or tentatively placed among 34 levels in /sup 53/Cr up to an excitation energy of 4.36 MeV. Deduced branching ratios are in reasonable agreement with previous measurements except for decay of the E/sub x/ = 15… more
Date: November 1, 1987
Creator: Dickens, J.K. & Larson, D.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tracer diffusion of /sup 60/Co and /sup 63/Ni in amorphous NiZr alloy

Description: Tracer diffusion of /sup 60/Co and /sup 63/Ni in equiatomic amorphous NiZr alloy in the temperature range between 486 and 641/sup 0/K can be described by: D/sub Co/sup */ = 3.7 x 10/sup -7/ exp(-(135 +- 14) kJ mole/sup -1//RT) m/sup 2//sec and D/sub Ni//sup */ = 1.7 x 10/sup -7/ exp(-(140 +- 9) kJ mole/sup -1//RT) m/sup 2//sec. The values of D/sub Ni//sup */ are in reasonable agreement with those measured by the Rutherford backscattering technique. The measured diffusivities were independent of… more
Date: January 1, 1987
Creator: Hoshino, K.; Averback, R. S.; Hahn, H. & Rothman, S. J.
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Partner: UNT Libraries Government Documents Department
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1987 Oak Ridge model conference: Proceedings: Volume I, Part 2, Waste Management

Description: A conference sponsored by the United States Department of Energy (DOE) was held on Waste Mangement. Topics discussed were waste stabilization technologies regulations and standards, innovative treatment technology, waste stabilization projects. Individual projects are processed separately for the data bases. (CBS)
Date: January 1, 1987
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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TIBER II/ETR final design report: Volume 1, 1. 0 Introduction; 2. 0 plasma engineering

Description: This paper discusses the design of the TIBER II tokamak test reactor. Specific topics discussed are the physics objectives for Tiber, magnetics, baseline operating point, pulsed inductive operation, edge physics and impurity control, fueling, disruption control, vertical stability and impurity flow reversal. (LSP)
Date: September 1, 1987
Creator: Lee, J.D. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Similarity solutions of nonlinear partial differential equations invariant to a family of affine groups

Description: Problems of technological interest can very often be described by partial differential equations (PDEs) with one dependent and two independent variables (call them c, z, and t, respectively). Many such PDEs are invariant to one-parameter families of one-parameter affine groups. Similarity solutions are solutions of the PDE that are invariant to one group of the family. The great utility of similarity solutions is that they may be calculated by solving an ODE rather than a PDE and are thus much … more
Date: August 1, 1987
Creator: Dresner, L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Weldon Spring, Missouri: Annual environmental monitoring report, calendar year 1987

Description: Radiological monitoring at the WSS during 1987 measured uranium, Radium-226, and Thorium-230 concentrations in surface water, groundwater, and sediment; radon gas concentrations in air; all long-lived natural series isotopes in air particulates; and external gamma radiation exposure rates. Potential radiation doses to the public were calculated based on assumed exposure periods and the above measurements. Radon concentrations, external gamma exposure rates, and radionuclide concentrations in gr… more
Date: January 1, 1987
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Water geochemistry and hydrogeology of the shallow aquifer at Roosevelt Hot Springs, southern Utah: A hot dry rock prospect

Description: On the western edge of the geothermal field, three deep holes have been drilled that are very hot but mostly dry. Two of them (Phillips 9-1 and Acord 1-26 wells) have been studied by Los Alamos National Laboratory for the Hot Dry Rock (HDR) resources evaluation program. A review of data and recommendations have been formulated to evaluate the HDR geothermal potential at Roosevelt. The present report is directed toward the study of the shallow aquifer of the Milford Valley to determine if the lo… more
Date: December 1, 1987
Creator: Vuataz, F. D. & Goff, F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Extension of nuclear structure data base searches for gamma-ray laser candidates

Description: Results from a data base search of computerized nuclear structure libraries have been extended and augmented so as to expand the information available for nuclei suitable as gamma-ray laser candidates. The spectrum of nuclear levels occurring in deformed rotational nuclei have been calculated and have been used in conjunction with isomeric state data for odd-A systems. The results of this augmentation effort are presented with particular emphasis on results obtained for /sup 177/Lu, /sup 177/Hf… more
Date: December 1, 1987
Creator: Arthur, E. D.; Madland, D. G. & George, D. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Fabrication of isotopic heat and radiation sources for the Federal Republic of Germany

Description: Pacific Northwest Laboratory (PNL) has filled 30 German-made canisters with highly radioactive borosilicate glass. These canisters, containing specified amounts of /sup 137/Cs and /sup 90/Sr, will be sealed using a gas tungsten arc welder and will be decontaminated to nonsmearable limits using an electropolishing system. They are to be characterized in a series of nondestructive tests: surface dose rate measurement, axial gamma scanning, canister mass determination, and canister surface tempera… more
Date: September 1, 1987
Creator: McElroy, J. L.; Holton, L. K., Jr.; Burkholder, H. C.; Bryan, G. H. & Minor, J. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Shape isomers as candidates for the gamma ray laser storage state

Description: Three Dimension Nuclear Hartree-Fock calculations have been performed for isotopes of Osmium, Mercury, and Tungsten. Many of the calculated potential energy surfaces show a second minimum at large prolate deformation indicating the possibility of shape isomeric states. Several are at sufficiently low energy to be possible candidates as storage states for the gamma ray laser. 9 refs., 4 figs., 1 tab.
Date: December 1, 1987
Creator: Weiss, M.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Monopole strength as a probe of nuclear shape mixing

Description: The monopole strength, MS, within a single set of nuclear shape excitations is compared with the MS between different shapes. After misconceptions are pointed out concerning the spin dependence of B(E2) values, MS properties are juxtaposed with gamma-ray and beta-decay properties of /sup 70/Se, /sup 96/Zr, /sup 102/Pd, and the N = 60 isotones to illustrate the utility of combined investigations and evidence is given for the observation of a two-phonon octupole multiplet. Finally, consideration … more
Date: August 17, 1987
Creator: Meyer, R.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Population exposure from the fuel cycle: Review and future direction

Description: The legacy of radiation exposures confronting man arises from two historical sources of energy, the sun and radioactive decay. Contemporary man continues to be dependent on these two energy sources, which include the nuclear fuel cycle. Radiation exposures from all energy sources should be examined, with particular emphasis on the nuclear fuel cycle, incidents such as Chernobyl and Three Mile Island. In addition to risk estimation, concepts such as de minimis, life shortening as a measure of ri… more
Date: January 1, 1987
Creator: Richmond, C.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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House Characteristics Associated With Gamma Radiation and Radon Daughter Working Levels in Eastern Pennsylvania

Description: Working levels (WL) of radon daughters and ..gamma.. measurements in basements are described for approx.1200 houses near the Reading Prong. House variables studied included condition and construction materials of basement floors and walls, basement heights and areas, heating systems, air conditioning, water supply, and presence of drains and sump pumps. WL's were poorly predicted by house characteristics or ..gamma.. measurements, while ..gamma.. levels were well predicted by house characterist… more
Date: January 1, 1987
Creator: Stebbings, J. H.; Dignam, J. J.; Reilly, M. A.; Gerusky, T. M.; Hartman, T. T. & Anast, G. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Atmospheric Carbon Dioxide and the Global Carbon Cycle: The Key Uncertainties

Description: The biogeochemical cycling of carbon between its sources and sinks determines the rate of increase in atmospheric CO/sub 2/ concentrations. The observed increase in atmospheric CO/sub 2/ content is less than the estimated release from fossil fuel consumption and deforestation. This discrepancy can be explained by interactions between the atmosphere and other global carbon reservoirs such as the oceans, and the terrestrial biosphere including soils. Undoubtedly, the oceans have been the most imp… more
Date: January 1, 1987
Creator: Peng, T. H.; Post, W. M.; DeAngelis, D. L.; Dale, V. H. & Farrell, M. P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Laboratory leach tests of phosphate/sulfate waste grout and leachate adsorption tests using Hanford sediment

Description: An assessment of the long-term risks posed by grout disposal at Hanford requires data on the ability of grout to resist leaching of waste species contained in the grout via contact with water that percolates through the ground. Additionally, data are needed on the ability of Hanford sediment (soil) surrounding the grout and concrete vault to retard migration of any wastes released from the grout. This report describes specific laboratory experiments that are producing empirical leach rate data … more
Date: December 1, 1987
Creator: Serne, R. J.; Martin, W. J.; McLaurine, S. B.; Airhart, S. P.; LeGore, V. L. & Treat, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Gamma decay of isoscalar and isovector giant resonances following heavy-ion inelastic scattering

Description: Results from studies of gamma decay of giant resonances in /sup 208/Pb and /sup 90/Zr following inelastic excitation by 22 and 84 MeV/nucleon /sup 17/O ions are presented. Data on ground state decay of isoscalar giant quadrupole and isovector giant dipole resonances are presented and compared with calculations. Decays from resonances to low lying excited states are also discussed. Preliminary results from an attempt to isolate the isovector quadrupole resonance in /sup 208/Pb using its gamma de… more
Date: January 1, 1987
Creator: Beene, J.R.; Varner, R.L. & Bertrand, F.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Internally deposited fallout from the Chernobyl reactor accident

Description: In our work with about 100 subjects resident in eastern Europe (mostly Poland) at the time of the Chernobyl reactor accident or traveling as tourists, /sup 131/I was readily detectable in the thyroid through mid-June, 1986, and was detectable in some subjects as late as early July, 9 to 10 weeks after the start of the accident. Among 42 subjects who were in eastern Europe on April 26, 1986, and in whom /sup 131/I was detectable, the median activity in the thyroid was 1.4 nCi at the time of meas… more
Date: January 1, 1987
Creator: Schlenker, R.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Ground-water monitoring compliance projects for Hanford Site facilities: Progress Report for the Period July 1 to September 30, 1987

Description: This report documents the progress of four Hanford Site ground-water monitoring projects for the period from July 1 to September 310, 1987. The four disposal facilities are the 300 Area Process Trenches, 183-H Solar Evaporation Basins, 200 Area Low-Level Burial Grounds, and Nonradioactive Dangerous Waste (NRDW) Landfill. This report is the fifth in a series of periodic status reports. During this reporting period, field activities consisted of completing repairs on five monitoring wells origina… more
Date: November 1, 1987
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ground-water monitoring compliance projects for Hanford Site facilities: Volume 1, The report and Appendix A, Progress report for the period October 1 to December 31, 1986

Description: This report documents recent progress on ground-water monitoring projects for four Hanford Site facilities: the 300 Area Process Trenches, the 183-H Solar Evaporation Basins, the 200 Area Low-Level Burial Grounds, and the Nonradioactive Dangerous Waste (NRDW) Landfill. The existing ground-water monitoring projects for the first two facilities named in the paragraph above are currently being expanded by adding new wells to the networks. During the reporting period, sampling of the existing wells… more
Date: February 1, 1987
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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TIBER II/ETR final design report: Volume 3, 5. 0 Radiation safety and environment; 6. 0 Physics and technology R and D needs

Description: This paper discusses the design of the TIBER II Tokamak. This particular volume discusses: safety and environmental requirements and design targets; accident analyses; personnel safety and maintenance exposure; effluent control; waste management and decommissioning; safety considerations in building design; and safety and environmental conclusions and recommendations. (LSP)
Date: September 1, 1987
Creator: Lee, J.D. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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