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ANSTO Publications Online

Welcome to the ANSTO Institutional Repository known as APO.

The APO database has been migrated to version 8.3. The functionality has changed, but the content remains the same.

ANSTO Publications Online is a digital repository for publications authored by ANSTO staff since 2007. The Repository also contains ANSTO Publications, such as Reports and Promotional Material. ANSTO publications prior to 2007 continue to be added progressively as they are in identified in the library. ANSTO authors can be identified under a single point of entry within the database. The citation is as it appears on the item, even with incorrect spelling, which is marked by (sic) or with additional notes in the description field.

If items are only held in hardcopy in the ANSTO Library collection notes are being added to the item to identify the Dewey Call number: as DDC followed by the number.

APO will be integrated with the Research Information System which is currently being implemented at ANSTO. The flow on effect will be permission to publish, which should allow pre-prints and post prints to be added where content is locked behind a paywall. To determine which version can be added to APO authors should check Sherpa Romeo. ANSTO research is increasingly being published in open access due mainly to the Council of Australian University Librarians read and publish agreements, and some direct publisher agreements with our organisation. In addition, open access items are also facilitated through collaboration and open access agreements with overseas authors such as Plan S.

ANSTO authors are encouraged to use a CC-BY licence when publishing open access. Statistics have been returned to the database and are now visible to users to show item usage and where this usage is coming from.

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Communities in ANSTO Publications Online

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Now showing 1 - 5 of 5

Recent Submissions

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    Short course in nuclear science & technology
    (Australian Nuclear Association, 1995-10-30) Houseman, L
    ANSTO provides a range of short courses in nuclear science and engineering for staff in support of its own activities. Staff have expertise in a number of research and applied areas and their skills enable us to participate in the delivery of regional courses under the auspices of the International Atomic Energy Agency (IAEA). Capitalising on our skills in working safely with radiation we develop and deliver specific courses in radiation protection for industrial and academic users of radiation sources. Finally, ANSTO supports the Australian and New Zealand Association of Physicians in Nuclear Medicine with a course for registrars in nuclear medicine departments.
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    Erosion studies in a rural catchment: an application of nuclear techniques
    (Australian Nuclear Association, 1995-10-30) Smith, N; Elliott, G; Airey, PL
    This school project has been designed to illustrate the application of environmental isotope caesium-137 to the study of erosion and sedimentation processes in a rural catchment near Tamworth. Specifically, the investigation is designed to compare the early high rates of sedimentation to the Moore Creek reservoir with the much lower rates which now prevail. As a result of the project, the students will gain an appreciation of how a combination of isotopic dating methods and knowledge of the land use changes can be used to construct an historical record of erosion processes over many decades. The project will serve to illustrate the impact of land use strategies on erosion and will be relevant to wider.
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    Management of radioactive materials at Lucas Heights
    (Australian Nuclear Association, 1995-10-30) Jostsons, A
    Radioactive waste is an inevitable product of the activities of ANSTO performed in the national interest. Most of the wastes arise from the production of radiopharmaceuticals for nuclear medicine. The regulatory framework, waste management practices and historic wastes stored at ANSTO are described. ANSTO has complied with all relevant State and Commonwealth requirements in managing radioactive wastes. Extensive monitoring of discharges demonstrates that its practices have protected human health and the environment. The policy on radioactive waste management within ANSTO has been reviewed to ensure it continues to manage wastes in accord with evolving best practice internationally.
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    Drug elution form porous ceramic components for threshold reduction in pacemaker applications
    (Trans Tech Publications, 1989-08) Anderson, N; Buykx, WJ; Drabarek, E; Mathivanar, R; Reeve, KD; Skalsky, M
    Heart pacemakers are used widely in the community. They are being designed to incorporate an increasing number of functions. In addition, there is a general desire to make them smaller and more comfortable to wear. Thus there exists a need to improve the energy efficiency of stimulation, to ensure that the battery will last 5-10 years. As for all implants, when the electrode of the pacemaker lead comes in contact with tissue, the body responds with a local inflammatory reaction and the formation of a fibrous capsule (scar tissue) which makes the electrode/tissue interface less favourable for energy transfer to the cardiac muscle. Manufacturers of cardiac pacemakers have been investigating ways of improving the operating efficiency of the pacemaker by reducing the inflammation. The most effective approach was shown to be the delivery of a small amount of an anti-inflammatory steroid (dexamethasone sodium phosphate, (DSP)) close to the electrode/tissue interface (1,2). Composite electrode tips have been developed, based on this new concept, in which the electrode is combined with a polymeric collar containing the DSP. The collar is positioned immediately adjacent to the electrode. Testing in sheep has shown that composite electrode tips with drug eluting collars lower the stimulation threshold voltage by nearly 50 %, and effectively eliminate the peak in stimulation threshold voltage that is observed for electrode tips without drug eluting collars approximately two weeks after implantation. (Stimulation threshold voltage is the voltage amplitude of pacing pulse required for the implanted pacemaker to take over from the "natural" pacemaker of the heart). Stimulation thresholds for drug-eluting composite electrode tips remained low and stable for up to eighteen months duration. The concept thus showed excellent potential for a substantial reduction in the stimulation energy required. However, the silicone collars used were found to be dimensionally unstable (swelling of up to 20 % can occur). Therefore it was decided to investigate the use of collars made of a very stable material, namely the biocompatible, bio-inert ceramic aluminium oxide. One of the aims of the current work was to develop cost effective methods for producing the minute collars, i.e. without machining. One collar has the shape of a truncated cone, nominal major diameter 2.0 mm, minor diameter 1.75 mm, height 0.6 mm, with a cylindrical axial hole of O.92mrn diameter. Another collar, used in a different type of lead, has major and minor outside diameters of 2.9 and 2.7 mm respectively, an inside diameter of 2.4 mm and a height of 2.25 mm. This very thin-walled truncated cone is referred to as a ’sleeve’. Another aim was to develop methods for fabricating porous ceramic materials, with tightly controlled volume fractions of several pore sizes and shapes, to serve various applications, e.g. tissue ingrowth for improved electrode fixation, and drug elution. Yet another aim was to infuse collars made of such materials with DSP (and sleeves with a related drug, dexamethasone acetate, DA) and to assess their performance. This paper reports the results obtained.
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    Atomic energy research
    (Land Printing House, 1967) Australian Atomic Energy Commission
    The Australian Atomic Energy Commission's Lucas Heights Establishment is the major Australian centre for atomic energy research and information. It has a programme of research in the development of nuclear power, the utilisation of radioisotopes, and in other associated fields, directed towards the long-term development of the resources of the country. The main feature of this programme is the development of a type of nuclear power reactor suited to Australian needs. A high temperature gas cooled reactor has been selected for study. By comparison with the nuclear power stations in existence or being planned at the present day, this is an advanced system. It is expected to be capable of competing on a cost basis with new coal-burning power stations in many parts of Australia. It is hoped to make this a "breeder" system whereby new fuel is bred from thorium at about the same rate as the original uranium reactor fuel is consumed, thus prolonging fuel life. Developing of this system is essentially a long-range project and in the initial stages an extremely precise and careful study must be made of the basic physics and engineering of the system, and of the materials involved in its construction. It is necessary to develop nuclear materials which can be fabricated to the required shape and form and can withstand the severe chemical and nuclear conditions within the proposed reactor. The physics of various configurations and proportions of these materials has to be analysed in detail, and the engineering of the core and associated structures has to achieve optimum conditions for highest output with minimum cost, commensurate with safety. The Research Establishment is now doing considerable into the properties of beryllium and its oxide, which have valuable nuclear qualities. These properties are affected by the methods of fabrication and by exposure to intense radiation. Much has yet to be learned about the corrosion resistance, high -temperature strength, and radiation resistance of materials based on this element. Emphasis is placed on obtaining the basic scientific information necessary to interpret the technological data and enable development of improved materials. The Research Establishment is already making significant contributions to the world's knowledge of the chemistry, physics and metallurgy of beryllium.