Nuclear data for radiation damage assessment and related safety aspects 1989

The first Advisory Group Meeting on Nuclear Data for Radiation Damage Assessment and Related Safety Aspects was convened by NDS eight years ago in October 1981. The present meeting was a second one on this topic and it was intended to summarize the progress and status of nuclear data for radiation damage assessment since the first meeting. The participants have emphasized that since the first meeting a number of spallation neutron sources were put into operation and many material radiation damage studies are conducted now at these facilities. The distinguishing feature of spallation neutron sources is that the neutron energy spectra which they produce in most cases have a high energy component which may give a significant contribution to radiation damage. The proper understanding of radiation damage experiments in these neutron fields requires a better knowledge of nuclear data at high neutron energies. These ideas were formulated in detail in the conclusions and recommendations of the participants which are contained in this report. Another new issue was the need for activation cross-section data of long-lived isotopes. This topic is also considered in the conclusions below. The 14 presentations published in this proceedings were subdivided into three sessions: Characterization of neutron reactor environment, surveillance and nuclear data (5 papers); High energy neutron dosimetry and radiation damage calculations (6 papers); REAL-88 results and prospects (3 papers). A separate abstract was prepared for each of these papers. Refs, figs and tabs