[en] The international symposium on the utilization of multipurpose research reactors and related international co-operation was organized by the IAEA to provide for information exchange on current uses of research reactors and international co-operative projects. The symposium was attended by about 140 participants from 36 countries and two international organizations. There were 49 oral presentations of papers and 24 poster presentations. The presentations were divided into 7 sessions devoted to the following topics: neutron beam research and applications of neutron scattering (6 papers and 1 poster), reactor engineering (6 papers and 5 posters), irradiation testing of fuel and material for fission and fusion reactors (6 papers and 10 posters), research reactor utilization programmes (13 papers and 4 posters), neutron capture therapy (4 papers), neutron activation analysis (3 papers and 4 posters), application of small reactors in research and training (11 papers). A separate abstract was prepared for each of these papers. Refs, figs and tabs

[en] Poster presentation. 2 refs

[en] The reactor ZLFR is a tank type, water moderated thermal nuclear reactor, designed mainly for training purposes. The chief reactor characteristics and nuclear safety measures are briefly described. An outline of the reactor's use for training is given, with reference to various modes of education. Research activities in reactor physics and activation analysis are described. Proposals are made for international co-operation in the form of basic courses in nuclear engineering making use of the ZLFR. (author). 8 refs, 3 figs

[en] Poster presentation

[en] Oak Ridge National Laboratory has embarked on the design of the Advanced Neutron Source (ANS), a neutron research facility based on a reactor of ultrahigh flux, which will be used for research in neutron scattering, materials irradiation, isotope production, and the fundamental properties of matter. The reactor design is based on conventional technology derived from the High Flux Isotope Reactor at Oak Ridge, except that the fuel will be U₃Si₂, the power about 270 MW, and the maximum unperturbed thermal flux in the reflector 8 to 10·10¹⁵n·cm^-2·s^-1. The reactor will be cooled with D₂O and have a D₂O reflector. For neutron scattering research the high flux will result in better resolution for a variety of experiments, it will make measurements on small samples or materials will small cross sections possible, and polarization analysis and real-time studies are expected to bring about new advances in condensed matter research. The ANS will provide regions with high fast flux and low thermal flux advantageous for the study of radiation effects, and regions of high epithermal flux primarily for the production of heavy elements. Current plans call for 8 thermal beams, 12 cold neutron guides, 4 hot beams, and an initial complement of about 35 instruments. It is expected that the ANS will attract about 1000 users annually. The current estimate of the total construction cost is approximately $360 million in 1987 dollars; the current schedule calls for the reactor to go critical in 1996. (author). 4 figs, 3 tabs

[en] For more than 25 years, research reactors have played an important role in those areas of technological research essential to the development of nuclear power plants, as well as in pure research, particularly in nuclear physics, the physics of condensed matter, biology, etc. They have been the basic means of radioisotope production and have been generally very useful in training the personnel necessary for the development of nuclear energy. After an analysis of how research reactor utilization has evolved up to the present time, an attempt is made to determine present and future requirements in order to provide a framework for a policy on the technical, human and financial resources to be employed. A strict management policy is needed to ensure the judicious use of technical and human resources, particularly since the outlook, especially the financial one, is not very optimistic at present, with the future of many facilities being called into question. There is no doubt that the unfavourable attitude to nuclear power in most countries makes it necessary to be particularly careful to prevent an incident from occurring that might damage the image of nuclear power. The resulting safety criteria place a heavy financial burden on programmes and new experiments as well as on the development of those reactors where the re-evaluation of safety necessitates extensive research and work. There is therefore an urgent need to consider the advisability of developing still further international, and particularly European co-operation, which already takes place in the case of pure research, in order to ensure a more complementary and competitive utilization of the main multipurpose research reactors, especially for the production of radioisotopes. (author)

[en] Through coordination by the International Atomic Energy Agency, a special underwater telescope developed by the Institute of Isotopes and the Central Research Institute for Physics of the Hungarian Academy of Sciences was made available to the Atominstitut der Oesterreichischen Universitaeten during a shutdown and reinspection period of the TRIGA Mark II reactor in mid-1985. The paper describes in detail the various steps of the inspection process, and its importance for future safe and efficient operation of a low power research reactor. It also demonstrates the importance of bi- or multilateral cooperation between research institutes to save on costs of expensive equipment, to share experience for mutual benefit and to assist each other in an efficient and unbureaucratic way. (author). 1 fig., 1 tab

[en] Poster presentation

[en] Poster presentation

[en] Poster presentation. 2 refs