[en] Rapid procedures for radiochemical separations are essential for much of the work with short-lived isotopes in nuclear-chemical characterizations as well as in many applications of nuclear techniques such as activation analysis. Rapid techniques for chemical separation, including modified standard analytical techniques and new procedures, are summarized in a monograph of the Radiochemical Techniques Series sponsored by the Subcommittee on Radiochemistry of the National Research Council. The author reviews the most important aspects of this monograph. (author). 22 refs, 5 figs

[en] Activation analysis has become an established analytical technique and is one of the obvious uses of a research reactor. The author summarizes the following subjects: general status of activation analysis, sensitivity, chemical separation and physical determination, non-destructive analysis, examples of the method, facilities, and potentiality of activation analysis in the solution of local problems. (author). 50 refs, 8 figs

[en] Most uses of nuclear reactors as a radiation source are linked in some way to reactor technological problems. The authors discuss a recent trend in experimental techniques used to study the chemistry of reactor materials and to study radiochemistry with the aid of reactors; they point out the promising fields for future explorations. A comparison of the effects of different types of radiation, the influence of radiation on the subsequent thermal reactions of solids, and a dosimetry of mixed radiation sources are discussed as examples for promising fields of study. (author). 38 refs, 3 figs, 1 tab

[en] Chemical competence is needed not only for the development of new types of reactors but also for the start-up and safe operation of reactors. The activities of chemistry and chemical engineering cover a number of fields, namely chemical analysis, radiochemical analysis, corrosion research, radiolysis of water and water purification. The author reviews fields in reactor operation and maintenance in which chemical competence is needed. (author). 9 refs

[en] The removal of interfering radiations from a radioactive nuclide is usually essential for the measurement of its radiation. The present paper aims at a discussion of some of the very rapid radiochemical separation techniques used in research with reactors, with emphasis on instantaneous and continuous flow methods. (author). 31 refs

[en] The study of ''hot'' atom chemistry is primarily a branch of the study of chemical kinetics. The author describes the fundamental mechanism of ''hot'' atom reactions, experimental techniques for practical applications and some typical examples of hot-atom chemistry research which illustrate the current trend in research and the types of problems involved. (author). 17 refs, 3 figs, 1 tab

[en] Chemistry has occupied an important position historically in the sciences associated with nuclear reactors and it continues to play a prominent role in reactor-based research investigations. This Panel of prominent scientists in the field was convened by the International Atomic Energy Agency (IAEA) to assess the present state of such chemistry research for the information of its Member States and others interested in the subject. There are two ways in which chemistry is associated with nuclear reactors: (a) general applications to many scientific fields in which chemical techniques are involved as essential service functions; and (b) specific applications of reactor facilities to the solution of chemical problems themselves. Twenty years of basic research with nuclear reactors have demonstrated a very widespread, and still increasing, demand for radioisotopes and isotopically-labelled molecules in all fields of the physical and biological sciences. Similarly, the determination of the elemental composition of a material through the analytical technique of activation analysis can be applied throughout experimental science. Refs, figs and tabs

[en] Energies provided by a reactor have already been applied to chemical systems for the production of chemicals, notably kinetic energy of fission fragments, which occupies a primary part in the total energy of fission, and gamma energies. The author critically reviews the current status of the application of nuclear reactors to the production of chemicals and describes some typical examples, such as nitric acid and hydrazine synthesis. (author). 8 refs, 3 figs, 1 tab

[en] Chemistry of nuclear fission is one of the important branches in nuclear chemistry. The author reviews the chemistry of nuclear fission based on a nuclear reactor and points out the areas needing further exploration. These areas include a search for unknown short-lived nuclides of certain fission products, a determination of accurate fission yield, and an accumulation of more experimental data on fission processes, especially for fissionable materials other than U²³⁵. (author). 22 refs, 3 figs, 2 tabs

[en] The chemistry programme at a reactor centre must include service functions as well as research and development functions. The author summarizes the current status of research-reactor utilization, primarily from the standpoint of facilities and experimental techniques, but some typical examples of different uses in chemistry areas are presented. It is intended to give scientists in newly-established centres a sound fundamental knowledge and general understanding of chemistry research and chemical techniques based on research reactors. (author). 79 refs, 10 figs, 6 tabs