Conference Publications
This community mainly contains citations, yet where permitted, the full text, of the conference papers, presentations, posters and abstracts written by ANSTO authors.
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Browsing Conference Publications by Subject "AAEC"
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- ItemThe development and testing of Synroc C as a high level nuclear waste form(Cambridge University Press, 2011-02-15) Reeve, KD; Levins, DM; Ramm, EJ; Woolfrey, JL; Buykx, WJThe current status of SYNROC C research and development by the Australian Atomic Energy Commission is reviewed. A non-radioactive fabrication demonstration line designed to produce 10 cm o.d., 90 cm long, cylinders of SYNROC canned in stainless steel by the method of in-can hot pressing is being commissioned. Leach tests are proving the excellent leach resistance of SYNROC. Accelerated radiation damage testing using fast neutrons has simulated storage times of up to 6.7×105 years. Thermophysical properties of SYNROC have been measured over the temperature range 20–650°C. © Materials Research Society 1982
- ItemThe development and testing of SYNROC for high level radioactive waste fixation(Australian Atomic Energy Commission, 1981-02-23) Reeve, KD; Levins, DM; Ramm, RJ; Woolfrey, JL; Buykx, WJ; Ryan, RK; Champan, JFResearch and development on the SYNROC concept for high level radioactive waste fixation commenced at the Australian Atomic Energy Commission Research Establishment, Lucas Heights, in March 1979, in collaboration with a complementary program at The Australian National University (ANU). The present paper reports progress in the project's second year and reviews its current status. An inactive 30 kg-scale SYNROC fabrication line incorporating in-can hot pressing as the fabrication step has been built for operation in mid-1981. Atmospheric pressure and hydrothermal leach tests are demonstrating the excellent leach resistance of SYNROC. Accelerated radiation damage tests using fast neutrons are simulating damage in SYNROC for periods of close to 10/sup 6/ years. In supporting research, mineral phase development, impact friability and thermophysical properties of SYNROC are being studied.
- ItemElectron beam welding of stainless steels(International Institute of Welding, 1976-08-23) Chrimes, NWD; Gardner, RVA review is given of some of the principal problems encountered in the operation of a 30kV 500 mA electron beam unit installed at Lucas Heights in 1970. The principal welding parameters for the successful operation of a unit of this type are discussed, with particular emphasis on gun to work distance and vacua, and their effect on the weld properties.
- ItemProvenance studies of New Zealand obsidian artefacts(Elsevier, 1984-04) Duerden, P; Bird, JR; Clayton, E; Cohen, DD; Leach, BFA large scale obsidian analysis program at the AAEC Research Establishment uses an automated facility with a multisample capacity and simultaneous PIXE and PIGME measurement. A pinhole filter in front of the PIXE detector ensures that up to 20 element concentrations can be obtained from the samples in a 5 min irradiation. Spectrum analysis and data handling procedures have been set up together with a variety of parametric and non-parametric statistical procedures. The clustering programs have been used with data from a previously measured S. W. Pacific and New Zealand obsidian source collection to identify the origin of artefact material. The example used to illustrate this program is of obsidian artefacts from the Kermadec and Chatham Islands. © 1984 Published by Elsevier B.V.
- ItemSome aspects of Australian research into citircal heat flux and post dryout phenomena(Hemispher Publishing Corporation, 1985-10-15) Green, WJThis paper provide a brief review of some aspects of the research investigations into boiling crisis and post crisis heat transfer which have been performed at the AAEC Research Laboratories using a pressurised Freon-12 heat transfer facility as the basic experimental tool. This paper also includes information on recent work being performed on rewetting phenomena as low mass fluxes.
- ItemSymposium on movement of granular material and structure, fluid flow and heat transfer in packed beds(Australian Atomic Energy Commission, 1967-02-16) Australian Atomic Energy Commission Research EstablishmentThe Research Establishment has acquired a considerable amount of experimental information on the movement of granular material and on the structure, fluid flow and heat transfer in random and ordered packings of spheres and some information on non-spherical shapes. TheCommission believes that this work will undoubtedly prove to be of wide interest in the many fields of Engineering and Applied Science (Chemical reactors pebble bed heaters and stores? water filters, soil mechanics concrete structure} rock hoppers, silos, etc). The object of the Symposium is to ensure efficient dissemination of the Commission's work to scientists and engineers in Government Departments Indus trial Organizations and Universities and that the relevant work of other people is properly related to the Commission's efforts.
- ItemTheremal profiles for high-level radioactive waste burial(Elsevier Science Pub. Co., 1983) Barry, JM; Miskelly, PC; Pollard, JPSeveral solutions for the long-term storage of high-level radioactive waste have been proposed. Essentially they involve the solidification of the spent nuclear material and its storage in the most stable environment possible. The conventional method is to solidify such wastes, by vitrification in borosilicate glass but, at night temperatures and specific hydrothermal conditions, these wasteforms have shown enhanced leachability. This problem can be overcome by reducing the concentration of the heat source (i.e. the radioactive material) but promising alternatives are available, such as the Australian SYNROC process. A computational model for the determination of temperature distribution produced by radioactive decay, particularly the temperature within a cylinder of SYNROC material buried deep beneath the Earth's surface, is discussed.