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  • 1
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 61 (1990), S. 273-275 
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: One of the objectives of the TISOL (Test Isotope Separator On Line) facility at TRIUMF is the production of low Z radioactive isotopes, with a special interest in those related to nuclear astrophysics. A part of experimental objectives is the installation of an electron cyclotron resonance ion source on-line to test its suitability for this use. In collaboration with TISOL, the University of Alberta has designed, built, and tested off-line a single stage ECRIS. As part of the source, testing measurements were carried out to determine the efficiency of the source; some preliminary results indicate efficiencies of 20% for Ne+ and 30% for Ar+. In general, it was attempted to test the source under as wide as possible a set of operating conditions. The final off-line testing is completed. It is hoped that the source will go on-line in the early summer of 1989.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Coastal distribution in the northern hemisphere 131I originating from Chernobyl was estimated using standard gamma spectrometric techniques on samples of the intertidal seaweed, Fucus. In May and June 1986 synchronized Fucus spp. collections were made from several locations around the world with emphasis on the northeast Pacific shores. The large-scale patterns of 131I specific activity was consistent with prevailing tropospheric wind conditions. In British Columbia and Washington State, specific activity correlated significantly and positively with precipitation. A detailed study of a Fucus population in Vancouver, British Columbia, suggested that plants became contaminated by rain-borne 131I during periods of emergence. This population had detectable levels of 131I for about 40 d, and a bio-elimination half-period of 10.3 d.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of environmental contamination and toxicology 27 (1981), S. 660-670 
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Conclusions The results of this study have shown that field studies can be used to develop statistical models for estimating the concentration of trace metals in seawater knowing the concentration of metals in the mussels. Although only about 50% of the variance of the soluble metal and about 20% of the metal as SPM can be accounted for by the models there is no reason to doubt that better models can be obtained in the future ff parameters which reflect instantaneous effects are included. Such parameters could be measurements of the freshwater input as reflected by salinity and turbidity measured with sechi disk readings. Obviously one of the important variables to consider is salinity as both DAVENPORT (1977) and PHILLIPS (.1976) have shown that this variable affects copper and zinc uptake. These parameters could help solve the problem encountered in this study in which a constant bias is seen in the results: low concentrations of metals in the seawater are overestimated and high values are underestimated. Nevertheless the models presented in this paper can be considered as a first step in estimating time-integrated concentrations of trace metals using easily measured parameters in mussels collected in a natural environment.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Archives of environmental contamination and toxicology 12 (1983), S. 1-14 
    ISSN: 1432-0703
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract Specimens ofMytilus edulis (mussels) were collected at one-month intervals over a one-year period from two locations in Burrard Inlet, British Columbia, Canada and less frequently from other locations in the S.W. region of B.C., and analyzed for concentrations of Mn, Fe, Cu, Zn, Br, Pb, and Sr using X-ray energy spectroscopy. Size and condition of the mussels were recorded at the same time. The data were analyzed using multiple linear regression with size and season as predictor variables and trace metal contents as criterion variables. The values of the regression coefficients changed according to whether or not the mussels were collected from a polluted environment in disagreement with previously published studies. Principal component analysis of the correlation matrix of the variables yielded three principal components one of which can be used to ascertain whether or not mussels were collected from either a polluted or an unpolluted environment.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Water, air & soil pollution 14 (1980), S. 115-124 
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Using X-ray energy spectroscopy concentrations of Mn, Fe, Cu, Zn, As, Br, Ph, Rb, and Sr were measured in specimens of the terrestrial gastropod, Arion ater, found in locations close to and far from a highway. Higher values of Pb and Br were observed for specimens near the polluting source and mathematical analysis revealed an inverse relationship between lead uptake and uptake of Cu, Zn, and Sr. The data are used to demonstrate a classification procedure in which trace metal concentrations in Arion ater are used to assess environmental quality.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Hyperfine interactions 81 (1993), S. 275-284 
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In 1985, a high intensity, accelerated radioactive beam facility (ISAC) of the ISOL type, devoted mainly to studies in nuclear astrophysics, was proposed for installation. A report on the present status of radioactive beam research using the successfully operating TISOL is given, together with a summary of the future plans of these programs including an upgrade of TISOL to accommodate 〉10 μA and a revised ISAC proposal.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of radioanalytical and nuclear chemistry 171 (1993), S. 219-224 
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract An institute for the training of radiochemist was proposed in 1989 by scientists/educators from Simon Fraser University (SFU) and the TRIUMF Nuclear Research Facility in Canada. The intensive program spans 6 weeks and includes seminars and problem sesssions as well as practical laboratory experience. Topics include health physics, synthesis of short lived radiopharmaceuticals, automation and quality control. The first offering was in May–June 1990. Based on this experience a textbook on Radiochemistry and Radiopharmaceutical Chemistry has been initiated. Parts of the program may be implemented into a credit course to be offered through the Department of Chemistry at SFU.
    Type of Medium: Electronic Resource
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