From nuclear science symposium; San Francisco, California, USA (14 Nov 1973). Samples of fissile material can be assayed by bombarding with 300- to 600- keV neutrons and counting delayed neutrons from fission. Interrogating neutron energy selection is based upon considerations of sample penetrability and insensitivity of response to nonfissile isotopes. Significant cost savings in nuclear safeguards and quality control are possible. (auth)

Photon production data from three sets of /sup 238/U ENDF/B data, MAT's 58. 702, and 4187, mod 1 were tested by using the data to calculate secondary gamma-ray pulse height spectra that could be compared with measured spectra. This prolect also provided a test of the AMPX modular code system for generating coupled neutron-gamma multigroup cross section data. (LBS)

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From fifth symposium on engineering problems of fusion research; Princeton, New Jersey, USA (6 Nov 1973). It appears that, when considering the field limits of toroidal superconducting magnets, the mechanical stresses on the coils will be a primary limitation. The results of a detailed analysis of the forces and resultant stresses imposed on the magnet coils are presented. Two coil geometries have been analyzed; the circular coil toroid similar to the Oak Ridge design, and the D'' shaped coil similar to the design proposed by the Princeton Plasma Physics Laboratory. Stresses calculated by a three-dimensional analysis are presented for the coils under normal and abnormal operating conditions. The abnormal condition considered is the unexpected quench'' of an adjacent coil resulting in asymmetric magnetic fields. The three-dimensional magnetic fields, within the current-carrying conductors, were calculated to determine the body forces. A three-dimensional, finite-element elastic stress analysis code, SOLID SAP'', was used to evaluate the resultant mechanical stresses. (23 figures) (auth)

From international conference on application of nuclear data in the field of work of art; Rome-Venice, Italy (24 May 1973). A difficult but most important problem in archaelogy and art history is that of establishing the origins of the various artifacts under study. In the case of pottery, much work has been done in recent years using neutron activation analysis to establish trace element patterns which in optimum instances may be used to match pottexy with the clay source from which it was manufactured. This paper gives some results of research carried out at Brookhaven National Laboratory involving neutron activation analysis of samples of potiery and clays from sources in Cyprus, the Aegean area, Palestine, and elsewhere in the Eastern Mediterranean, and the formation of groups of pottery specimens on the basis of these analyses. Some applications of multivariate methods to the problem of grouping the analytical data and some of the archaeological inferences which can be drawn from the data are also discussed. (auth)

The ETOE-2/MC/sup 2/-2/SDX code system provides a comprehensive neutron cross-section processing capability. The three components of the system include an ENDF/B library processor (ETOE-21, an ultra-fine-group fundamental mode calculation (MC/sup 2/-2), and an intermediate-group space-dependent capability (SDX). Brief descriptions of the types of calculations are discussed. Selected results from typical problem executions are presented. (auth)