[en] Nuclear methods for characterizing metallic materials are presented, e.g., NAA, PNRA, RBS, ERD, and IIXE

[en] These proceedings contain the abstracts of 77 lectures. The topics focus on instrumentation, nuclear techniques and their applications for material science, surfaces, archaeometry, art, geological, environmental and biomedical studies. An outline of the Australian facilities available for research purposes is also provided. Separate abstracts were prepared for the individual papers in this volume

No abstract available

[en] A description is given of different cases of using a bombardment with charged particles for studying the surface of the glass: quantitative determination of tin by elastic scattering of alpha particles; determination of nitrogen and of fluorine by fast nuclear reactions; quantitative analyses of the iron and of arsenic by X-ray detection. The methods have the following characteristics: non-destructive; no residual radioactivity is observed; detection limits of the order of a few ppm for most of the elements; analysis of the first microns or the samples; possibilities of doing local analyses by means of small-diameter pencils of rays

[en] The device includes a neutron source and a lead converter placed at the intersection of two parallelepipedic panels in a material thermalising neutrons, like polyethylene. The panels can move like a hinge, fission neutron detectors are placed into the panels opposite to the neutron source. Material to be tested is placed between the two panels. This device is simple, compact and can be use for monitoring nuclear wastes

[en] Disbond size of adhesively bonded single lap and double lap joints CFRP composite specimens has been evaluated using acousto-ultrasonic(AU) technique. Frequency spectra for all specimens were obtained by measuring peak amplitude of the stress wave propagated through the bond-lines. By analyzing these frequency spectra, peak amplitude was found to be proportional to fractional bonding area and to be maxima at the fundamental and the third order higher harmonic frequencies of specimen thickness mode. The disbond size can be evaluated quantitatively and this technique can be applied to real structures if the reference specimens are prepared in advance

[en] The ultrasonic backward radiation profiles of Be(13μm)/Zr(1.545 mm) alloy plate and pure Zr(1.545 mm) plate were measured to evaluate the embedded Be layer. Lamb wave modes shown in the profiles decreased and profile pattern was changed by Be layer loading. Spectrum of backward radiated RF signals showed the mode number decrease. New evaluation factor of angular dispersion relating to group velocity of collective modes was suggested to evaluate the Be alloy layer on Zr plate.

[en] A proportional flow counter for continuous operation at 300⁰C has been developed. It serves as the radioactivity detector in a gas radiochromatographic system. With associated electronics it is capable of both qualitative and quantitative analyses of the emerging peaks. The counter is decontaminated in situ by treatment with oxygen at 325 to 350⁰C. Backgrounds are low (approximately 75 cpm) and at the flow rates used, 5 dpm generate 2 counts. Possible quenchers are readily detected by their effect on the count rate produced by an external ⁶⁰Co source. Frequency of disassembly is low, averaging about once a year over the past three years

No abstract available

[en] This paper discusses the strengths and weaknesses of ion beam analysis techniques. They are compared with other techniques used for similar or complementary measurements. The role and contribution of IBA to various fields of science and technology are summarized