[en] The Stichting Reactor Centrum Nederland (RCN) was founded on 6 July 1955.On 20 July 1976, the name was changed to Netherlands Energy Research Foundation ECN. Before, research reports were published with the reportcode RCN-. After, a new series of reports was started commencing with reportnumber ECN-1. This list constitutes all research reports with reportcode RCN- published between 1960 and 1976. In addition to the compilation of bibliographic descriptions, an author list and a KWOC list on all significant words in the report titles have been given

[en] Highlights were: 1. Fission product release: benchmark calculations for severe nuclear accidents; 2. Thermochemical data for reactor materials and fission products; 3. thermochemical calculations on fuel of the high-temperature gas-cooled reactor; 4. Formation of organic tellurides during nuclear accidents?; 5. Reaction of tellurium with Zircaloy-4; 6. Transmutation of fission products; 7. The thermal conductivity of high-burnup UO₂ fuel; 8. Tritium retention in graphite. (orig./HP)

[en] In order to assess the neutron exposure of the reactor pressure vessel neutron dosimeters are to be installed in the vicinity of the vessel. They ought to be exposed in such a way that the conditions are close to those of the vessel material. Activities from these dosimeters can be used as calibration points for whole-core neutron-fluence calculations. If these dosimeters or monitors are not available or ran out of number, estimates for the neutron exposure of the vessel or internals can be obtained from the activities of small chips of the structural materials themselves. These chips or scraping have to be representative for the bulk material and can be obtained by drilling, nibbling or scraping of some tenth's of grams of the bulk of the vessel or internal structure. By measuring the gamma activities of these scraping one can identify and determine the specific activities of nuclei which monitor the neutron dose and spectrum during the irradiation period. This method is known as 'retrospective dosimetry' or as 'the scraping method'. In practice the gamma's of the wanted reaction are mostly obscured by the background formed by gamma's of other reactions, thus reducing the counting accuracy for the specific reaction. Or the activities of this reaction can be contaminated by a contribution from a parasitic reaction, which one has to determine to be able to correct for in the result. Likewise the specifications for the minor constituents of the material composition, which provide most of the information, might not be sufficiently accurate for the purpose if present at all. Concluding; one needs some extra tools to improve on the uncertainty of the measured and metallurgical data to enhance the final accuracy. In this report some chemical and physical tools are presented to come to an improved result for retrospective dosimetry. (author)

[en] Signals from the Dutch Borssele nuclear power plant are transmitted via a special telephone line to the ECN research establishment at Petten, where on-line noise analysis is performed using a mini-computer

[en] This paper discusses the relation of the Dutch reactor institute ECN with the industry. The information era will have consequences for the industry especially as to the ratio knowledge-labour invested in industrial products. (Auth.)

[en] A description of the decontamination facility at ECN, Petten, is given. The layout of the low-level decontamination and the in-cell decontamination of high-level contaminated objects is explained. The results of the recent decontamination of large components, such as boxes used for handling of active materials, and reactor pool equipment, are presented. (author)

[en] In case of a nuclear accident the environment of the nuclear power plant will be contaminated. This report discusses the use of filters for reducing the contamination. (R.A.B.). 22 refs.; 18 figs.; 9 tabs

[en] The research and development work of ECN for fusion reactor technology is part of the Thermonuclear Fusion Technology Programme 1989-1991 of the European Community. The liaison is formalized on a FOM-ECN subcontract to the Euratom-FOM Association Contract. The work is organized in 18 detailed R and D project contracts in the NET Technology Programme, the Solid Breeder Blanket Programme, the Long Term Programme, and in JET and NET contracts. A list of these tasks in the European Programme structure and their ECN project number, including a keyword for indication of their R and D objectives, is given. The progress of this work carried out in 1990 is described in the subsequent chapters for each of the ECN projects, grouping the projects per R and D discipline. A summary of the total work for these tasks is given and the ECN-publications related to the 1990 Fusion Technology Programme are included. (author). 148 refs.; 75 figs.; 19 tabs

[en] The High Flux Reactor (HFR) at Petten, is owned by the European Commission (EC) and managed by the Institute for Advanced Materials (IAM) of the Joint Research Centre (JRC) of the EC. Its operation has been entrusted since 1962 to the Netherlands Energy Research Foundation (ECN). The HFR is one of the most powerful multi-purpose research and test reactors in the world. Together with the ECN hot cells at Petten, it has provided since three decades an integral and full complement of irradiation and examination services as required by current and future research and development for nuclear energy, industry and research organizations. Since 1963, the HFR has recognized record of consistent, reliable and high availability of more than 250 days of operation per year. The HFR has 20 in-core and 12 poolside irradiation positions, plus 12 beam tubes. With a variety of dedicated irradiation devices, and with its long-standing experience in executing small and large irradiation projects, the HFR is particularly suited for fuel, materials and components testing for all reactor lines, including thermonuclear fusion reactors. In addition, processing with neutrons and gamma rays, neutron-based research and inspection services are employed by industry and research, such as activation analysis, boron neutron capture therapy, neutron radiography and neutron diffraction. Moreover, in recent years, HFRs' mission has been broadened within the area of radioisotopes production, where, within a few years, the HFR has attained the European leadership in production volume

[en] The Dutch Ministry of Economic Affairs recently decided to grant the Energy research Centre of the Netherlands a privileged position where it concerns the energy research budget as determined within the Energy Research Subsidies program, which is coordinated by the ministry's agency SenterNovem