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  • 1
    Series available for loan
    Series available for loan
    ADBEX I cruise to the Prydz Bay region, 1982 : nutrient data (1987)
    Kingston : Antarctic Division, Dept. of Science
    Associated volumes
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    Call number: ZSP-124-44
    In: ANARE research notes
    Description / Table of Contents: Nitrate, phosphate and silicate concentrations obtained during the ADBEX I cruise to the Prydz Bay region in November and December 1982 are plotted with depth and the raw data are tabulated. Location of the sampling stations and the average concentration of each nutrient in the top 100 m of the water column is mapped.
    Type of Medium: Series available for loan
    Pages: iv, 83 p. : Ill.
    ISBN: 0724615105
    Series Statement: ANARE research notes 44
    Branch Library: AWI Library
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  • 2
    Series available for loan
    Series available for loan
    Oceanographic data : Enderby Land region - Antarctic Division BIOMASS Experiment III, MV Nella Dan, September - December 1985 (1987)
    Kingston : Antarctic Division, Dept. of Science
    Associated volumes
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    Call number: ZSP-124-54
    In: ANARE research notes
    Description / Table of Contents: Fifty CTD stations were taken during the ADBEX III cruise, September - December 1985 between the northernmost margin of the sea-ice and the Antarctic coast when the sea-ice was near its maximum extent. Casts were made to 2000 m or to near bottom over the continental shelf. In situ salinity, temperature and sigma-t are tabulated for standard depths, and shown graphically. T/S plots for stations are given.
    Type of Medium: Series available for loan
    Pages: iv, 112 S. : Ill.
    ISBN: 0642116369
    Series Statement: ANARE research notes 54
    Branch Library: AWI Library
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  • 3
    Series available for loan
    Series available for loan
    SIBEX II cruise to the Prydz Bay region, 1985 : nutrient data (1987)
    Kingston : Antarctic Division, Dept. of Science
    Associated volumes
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    Call number: ZSP-124-45
    In: ANARE research notes
    Description / Table of Contents: Nitrate, phosphate and silicate concentrations obtained during the SIBEX II cruise to the Prydz Bay region in January 1985, are plotted with depth and the raw data are tabulated. Nitrite concentrations were insignificant and values are only tabulated. The location of the sampling stations and the average concentration of each nutrient in the top 100 m of the water column are mapped.
    Type of Medium: Series available for loan
    Pages: iv, 101 S. : Ill.
    ISBN: 0724615075
    Series Statement: ANARE research notes 45
    Branch Library: AWI Library
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  • 4
    Series available for loan
    Series available for loan
    ADBEX III cruise west of the Prydz Bay region, 1985 : nutrient data (1987)
    Kingston : Antarctic Division, Dept. of Science
    Associated volumes
    Details Availability
    Call number: ZSP-124-46
    In: ANARE research notes
    Description / Table of Contents: Nitrate, phosphate and silicate concentrations measured on the ADBEX III curise to an area west of the Prydz Bay region (49° to 65°E and 55° to 66°S) from October to December 1985, are plotted with depth and the raw data are tabulated. Nitrite and manganese values are also tabulated. The cruise track, the location of the sampling stations and the average concentration of nitrate, phosphate and silicate in the top 100 m is mapped.
    Type of Medium: Series available for loan
    Pages: iv, 69 S. : Ill.
    ISBN: 0642112932
    Series Statement: ANARE research notes 46
    Branch Library: AWI Library
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  • 5
    Series available for loan
    Series available for loan
    FIBEX cruise to the Prydz Bay region, 1981 : nutrient data (1987)
    Kingston : Antarctic Division, Dept. of Science
    Associated volumes
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    Call number: ZSP-124-43
    In: ANARE research notes
    Description / Table of Contents: Nitrate, phosphate and silicate data collected at selected CTD stations on the FIBEX cruise between January and March 1981 are plotted with depth and the raw data are tabulated. Sampling station locations and the average concentration of each nutrient in the top 100 m of the water column is mapped.
    Type of Medium: Series available for loan
    Pages: iv, 53 S. : Ill.
    ISBN: 0724615091
    Series Statement: ANARE research notes 43
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  • 6
    Electronic Resource
    Electronic Resource
    Transport of high-current electron beams in a racetrack betatron (1990)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 68 (1990), S. 411-421 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: This paper reports theoretical and experimental work on the transport of space-charge-dominated relativistic electron beams in a racetrack betatron with cusp focusing. High-efficiency propagation of 550-keV, 280-A beams through a complex optical system consisting of two 180° arcs with 36 focusing cells and a straight section was observed. More than 90% of the injected beam was captured and transported through the 7-m system. The experiments resolved several recent problems of beam injection and trapping in the machine and showed that electron beam transport at the space-charge limit is possible in a curved cusp array despite strong axial variations of focusing forces. We encountered no problems with the transitions between curved and straight focusing sections. The experiments demonstrated good beam containment in a cusp array with mixed focusing cell geometries as long as the axially averaged focusing force was the same for all cells. The ability to use long cells is a critical feasibility issue for other planned injection experiments into a closed racetrack geometry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.346837
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  • 7
    Electronic Resource
    Electronic Resource
    Image current guiding of a relativistic electron beam in a foil focusing system (1989)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 54 (1989), S. 2195-2197 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Intense relativistic electron beams can be focused by arrays of transverse conducting foils or meshes. The meshes cancel beam-generated radial electric fields, allowing a self-pinched equilibrium. The experiments reported confirm that foil focusing systems can also steer high-current beams. We applied a dipole perturbation field to deflect a 3.8 kA, 280 keV beam in a foil array. We found that image current forces centered the beam in the transport pipe. The measured deflection was more than an order of magnitude smaller than the predicted value for single electron orbits. The results show that foil focusing may have application to recirculating accelerators for high-current electron beams.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.101142
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  • 8
    Electronic Resource
    Electronic Resource
    Space-charge correction of solenoidal lenses (1986)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 60 (1986), S. 1569-1576 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A trapped distribution of low-energy electrons was used to alleviate spherical aberration in a solenoidal magnetic lens. The space-charge-correction method has potential application to the focusing of heavy, negatively charged particles such as H− ions. In the geometry investigated, the field contributions from trapped electrons cancel net electric fields along magnetic flux surfaces. The lens magnetic fields therefore define equipotential surfaces. Experimental results were obtained using a 10-keV electron beam as a nondestructive probe in a solenoid lens with 65-G peak field. Annular distributions of trapped electrons were achieved that were stable against the diochotron instability. Deflections of the probe beam were consistent with theoretical predictions. The peak focused current density of the 10-keV beam was improved twentyfold with the addition of trapped electrons in the lens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.337293
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  • 9
    Electronic Resource
    Electronic Resource
    Grid-controlled extraction of pulsed ion beams (1986)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 59 (1986), S. 1790-1798 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Experimental results are presented on a method for extracting well-focused ion beams from plasma sources with time-varying properties. An electrostatic grid was used to stop the flow of plasma electrons so that only ions entered the extraction gap. In this case, ion flow in the gap was controlled by space-charge effects as it would be with a thermionic ion source. Constant extracted current was observed even with large variations of source flux. An insulator spark source and a metal-vapor vacuum arc were used to generate pulsed ion beams. With a hydrocarbon spark, current densities of 44 mA/cm2 were achieved at 20-kV extractor voltage for an 8-μs pulse. With an aluminum-vapor arc, a current density of 15 mA/cm2 (0.3 A total) was measured for a 50-μs pulse.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.336401
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  • 10
    Electronic Resource
    Electronic Resource
    Correction of charged particle beam optics by a programmed electrostatic wire array (1988)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 64 (1988), S. 471-478 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Theoretical and experimental results are reported on a method for the correction of aberrations in optical elements for high-power ion beams. The approach involves the use of arrays of wires immersed in large diameter beams. Individually controlled voltages are applied to the wires, resulting in local transverse deflections of beam particles. With regard to wire survivability and voltage requirements, the method appears feasible for application to high-intensity negative ion beams. A formalism is described for the calculation of optimum wire voltages to achieve a specified beam angular correction in a Cartesian geometry. The results of the calculations were tested in modeling experiments using an 8-keV electron beam. The experimental array consisted of 46 wires and boundary plates with independent applied voltages up to 3 kV. Voltage profiles for one-dimensional focusing, two-dimensional focusing, and beam steering were studied. The observed particle deflections and beam emittance growth due to the facet lens effect are in agreement with predictions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.341984
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