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Walden, J.C.; Dupzyk, R.J.; Carver, R.D.
California Univ., Livermore (USA). Lawrence Livermore Lab1976
California Univ., Livermore (USA). Lawrence Livermore Lab1976
AbstractAbstract
[en] Reports and decisions made at a meeting on Pu isotope standard samples were summarized. Supporting figures and graphs are included
Primary Subject
Source
1976; 66 p; Available from NTIS. $4.50
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Report
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AbstractAbstract
[en] The feldspars of many tonalitic plutonic rocks in the coastal regions and West Andean regions are zoned. This leads to the conclusion that they are relatively flat intrusions and to some extent transition rocks in the subvulcanite direction. This is in accordance with the genetic and chronological relationship between plutonites and the surrounding vulcanites of the Basic Igreous Complex (BIC). The composition of representative minerals, e.g. alkali feldspar, plagioclase feldspar, biotite, chlorite, and amphibole has been determined as well as the age of plutonite samples by the K/Ar dating method. (DG)
[de]
Die Feldspaete vieler tonalitischer Plutone im Bereich des Kuestengebietes und der West-Kordillere weisen eine Zonierung auf. Das laesst darauf schliessen, dass die Tiefengesteinskoerper relativ flache Intrusionen und teilweise Uebergaenge in Subvulkanite repraesentieren. Dies steht im Einklang mit der genetischen und zeitlichen Zusammengehoerigkeit dieser Plutonite mit den sie umgebenden Vulkaniten des Basic Igreous Complex (BIC). Es gelang die Bestimmung der Zusammensetzung repraesentativer Minerale, wie Alkalifeldspat, Plagioklas, Biotit, Chlorit und Amphibol sowie die Altersbestimmung von Plutorit-Proben mit der K/Ar-Altersbestimmung. (DG)Original Title
Petrologische Untersuchungen plutonischer Gesteine von Ecuador
Primary Subject
Source
7 Nov 1980; 226 p; Diss. (D.Sc.).
Record Type
Miscellaneous
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Thesis/Dissertation
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AbstractAbstract
[en] Published in summary form only
Primary Subject
Source
Sao Paulo Univ., SP (Brazil); 277 p; 1988; p. 242; 4. International Symposium on Radiation Physics; Sao Paulo, SP (Brazil); 3-7 Oct 1988
Record Type
Miscellaneous
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Conference
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Mueller-Christiansen, K.; Wollesen, M.
Gesellschaft fuer Reaktorsicherheit m.b.H. (GRS), Koeln (Germany, F.R.)1979
Gesellschaft fuer Reaktorsicherheit m.b.H. (GRS), Koeln (Germany, F.R.)1979
AbstractAbstract
[en] As emotions and fear of plutonium are neither useful for the non-professionals nor for the political decision makers and the advantages and disadvantages of plutonium can only put against each other under difficulties, the paper wants to present the most essential scientific data of plutonium in a generally understandable way. Each of the individual sections is concluded and they try to give an answer to the most discussed questions. In order to make understanding easier, the scientific facts are only brought at points where it cannot be done without for the correctness of the presentation. Many details were left out knowingly. On the other hand, important details are dealt with several times if it seems necessary for making the presentation correct. The graphical presentations and the figures in many cases contain more than said in the text. They give the interested reader hints to scientific-technical coherences. The total material is to enable the reader to form his own opinion on plutonium problems which are being discussed in public. (orig./HP)
[de]
Da Emotionen und Angst vor dem Plutonium weder dem Laien noch den politischen Entscheidungstraegern nutzen und die Vor- und Nachteile des Plutoniums nur schwer gegeneinander abzuwaegen sind, will der vorliegende Bericht die wesentlichsten wissenschaftlichen Daten ueber das Plutonium allgemeinverstaendlich darstellen. Die einzelnen Abschnitte sind in sich weitgehend abgeschlossen und versuchen, jeweils eine Antwort auf die hauptsaechlich diskutierten Fragen zu geben. Zum besseren Verstaendnis werden die wissenschaftlichen Fakten nur dort gebracht, wo es fuer die Richtigkeit der Darstellung unumgaenglich erscheint. Auf viele Einzelheiten wurde bewusst verzichtet. Andererseits werden wichtige Details mehrfach behandelt, wo es zur Vollstaendigkeit der Darstellung angebracht erschien. Die graphischen Darstellungen und die Tabellen fuehren vielfach ueber den Text hinaus. Sie geben dem interessierten Leser weitere Hinweise auf wissenschaftlich-technische Zusammenhaenge. Das gesamte Material soll den Leser in die Lage versetzen, sich eine eigene Meinung ueber die in der Oeffentlichkeit diskutierte Plutonium-Problematik zu bilden. (orig./HP)Original Title
Plutonium
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Secondary Subject
Source
Stellungnahmen zu Kernenergiefragen; Apr 1979; 46 p
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Report
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Wilkinson, G.S.; Acquavella, J.F.; Voelz, G.L.; Tietjen, G.; Key, C.
Biological effects of low-level radiation1983
Biological effects of low-level radiation1983
AbstractAbstract
No abstract available
Primary Subject
Source
International Atomic Energy Agency, Vienna (Austria); World Health Organization, Geneva (Switzerland); Proceedings series; 682 p; ISBN 92-0-010183-6;
; 1983; p. 603-606; IAEA; Vienna (Austria); International symposium on the effects of low-level radiation with special regard to stochastic and non-stochastic effects; Venice (Italy); 11-15 Apr 1983; IAEA-SM--266/65P; Published in summary form only.

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Book
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Conference
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Wiedenhover, I.; Janssens, R.V.F.; Hackman, G.; Ahmad, I.; Greene, J.P.; Amro, H.; Bhattacharyya, P.K.; Carpenter, M.P.; Chowdhury, P.; Cizewski, J.; Cline, D.; Khoo, T.L.; Lauritsen, T.; Lister, C.J.; Macchiavelli, A.O.; Nisius, D.T.; Reiter, P.; Seabury, E.H.; Seweryniak, D.; Siem, S.; Sonzogni, A.; Uusitalo, J.; Wu, C.Y.
Lawrence Berkeley National Lab., CA (United States). Funding organisation: USDOE Director, Office of Science (United States)1999
Lawrence Berkeley National Lab., CA (United States). Funding organisation: USDOE Director, Office of Science (United States)1999
AbstractAbstract
No abstract available
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Source
LBNL--46341; AC03-76SF00098
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Journal Article
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AbstractAbstract
[en] To evaluate the importance of particle settling on the behavior of 239,240Pu inventories in the water column of a monomictic reservoir, the sedimentation fluxes of 239,240Pu were measured using sediment traps and compared to the Pu inventories. Sedimentation flux from surface to deeper waters averaged 5.4 mBq 239,240Pu m-2 d-1 which represented ≥ 3% of the surface water inventory of Pu per day. The fluxes were large enough to account for (1) the observed declines in the Pu inventories of surface waters following stratification and (2) the rapid increase in Pu inventories in deeper waters immediately following stratification. (Author)
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Journal Article
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AbstractAbstract
[en] Four intrinsic predominance-region diagrams for aqueous plutonium are described. They are easily prepared from an existing diagram by changing the oxidation-state fractions on the axes of the diagram and renaming the predominance regions. Not all combinations of oxidation-state fractions can be used to prepare the diagrams. (author)
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Source
5 refs.
Record Type
Journal Article
Journal
Journal of Radioanalytical and Nuclear Chemistry; ISSN 0236-5731;
; CODEN JRNCDM; v. 275(3); p. 671-672

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Smith, D.H.; McKown, H.S.; Bostick, D.T.; Coleman, R.M.; Duckworth, D.C.; McPherson, R.L.
Oak Ridge National Lab., TN (United States). Funding organisation: USDOE, Washington, DC (United States)1994
Oak Ridge National Lab., TN (United States). Funding organisation: USDOE, Washington, DC (United States)1994
AbstractAbstract
[en] This report describes a study to determine how well isotopic ratios can be measured for very small samples of plutonium. Resin beads were used to simulate particles; for samples ranging from 5--16 fg, collection efficiencies (ions collected per atom loaded) of 4--9% were obtained. Isotopic ratios with 4% precision and accuracy (240/239) were obtained
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Secondary Subject
Source
Jan 1994; 11 p; CONTRACT AC05-84OR21400; Also available from OSTI as DE94004789; NTIS; US Govt. Printing Office Dep
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Report
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AbstractAbstract
[en] The present status of the nondestructive plutonium isotopic analysis technique using high-resolution gamma spectrometry is evaluated in the light of results which have been obtained from interlaboratory comparison measurements initiated and organized by the ESARDA-Working Group on NDA techniques. The intercomparison exercise included both laboratories' own measurements on the plutonium isotopic reference materials NBS-SRM 946, 947, 948 and the analysis of gamma spectra from these materials distributed to the participating laboratories. 2 refs
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Journal Article
Journal
Nuclear Materials Management; v. 8 p. 174-182
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