Nuclear Structure Study with Neutrons

The International Conference on "Nuclear Structure Study with Neutrons" or­ ganized in Budapest between 31st July and 5th August. 1972. was the successor of a meeting held seven years ago in Antwerp. The close links between the two conferences were revealed not in name alone but. more importantly. in the choice of subjects discussed. As in Antwerp. the lectures and contributions to the Budapest Conference could be grouped under the following five main headings: nuclear spectroscopy; the optical model; the statistical model and intermediate structures; the mechanism of neutron capture and non-statistical effects; and, finally. miscellaneous special topics. The invited papers on the one hand summarizing recent developments and current thinking in one of the above main topics. and the other surveying the most important results of the contributed papers submitted to the Conference. were presented on the plenary sessions. Most of the contributed papers were read in full on three parallel sessions. This volume contains the complete text of all the lectures delivered in the plenary sessions and abstracts of the contributed papers. The invited talks were presented at the Conference in a rather random order because of technical reasons, it seemed. however, more sensible to change their order according to their subjects and to print them grouped under the above main headings. Further­ more we divided the Proceedings into two main parts, the first containing only the lectures of summarizing character. the second including the abstracts of the contributions together with the surveying talks.

Table of Contents:
I.- A. Introduction.- Progress in the study of nuclear structure with neutrons.- B. Nuclear spectroscopy with neutrons.- Structure studies in light nuclei with neutrons.- Investigation of ? -decay of neutron resonances and nuclear spectroscopy of highly excited states.- A new approach to the study of the structure of neutron resonances.- The radiative decay of neutron-resonant states.- C. Nuclear reaction models.- The optical model.- Nonstatistical effects in radiative neutron capture.- Departures from the statistical model.- Nuclear fission — a testing ground for the collective model.- D. Progress in experimental techniques.- Ultracold neutrons.- Intense sources of high energy neutrons.- The Karlsruhe fast neutron time-of-flight facility.- The Franco-German high flux reactor and its facilities for nuclear research.- WNR, a neutron time-of-flight facility at the Los Alamos Scientific Laboratory.- Pulsed reactor IBR-2 as a neutron source.- II.- E. Survey of contributions.- The (n, ?) spectroscopy.- Nuclear spectroscopy with neutrons.- Optical model studies.- Recent work on the statistical model.- Neutron capture mechanism and nonstatistical effects.- F. Abstract of contributed papers.- Section A: Nuclear spectroscopy with neutrons.- Section B: Optical model.- Section C: Statistical model and intermediate structure.- Section D: Neutron capture mechanism and non-statistical effects.- List of participants.